import { describe, expect, it } from 'vitest';

import { compareTurnSnapshotDeltas } from '../src/turn-differential/compare.js';
import { runCoreTurnCommandTrace, type TurnCommandFixtureRequest } from '../src/turn-differential/coreCommandTrace.js';
import {
    findTurnDifferentialWorkspaceRoot,
    runReferenceTurnCommandTraceRequest,
} from '../src/turn-differential/referenceSnapshot.js';

const configuredWorkspaceRoot = process.env.TURN_DIFFERENTIAL_WORKSPACE_ROOT;
const workspaceRoot = configuredWorkspaceRoot ?? findTurnDifferentialWorkspaceRoot(process.cwd());
const integration = describe.skipIf(!workspaceRoot || process.env.TURN_DIFFERENTIAL_REFERENCE !== '1');

const readGold = (row: { gold?: unknown } | undefined): number => (typeof row?.gold === 'number' ? row.gold : 0);
const readNationResource = (row: { gold?: unknown; rice?: unknown } | undefined, resource: 'gold' | 'rice'): number =>
    typeof row?.[resource] === 'number' ? row[resource] : 0;
const readCityPopulation = (row: { population?: unknown } | undefined): number =>
    typeof row?.population === 'number' ? row.population : 0;
const readNumericField = (row: Record<string, unknown> | undefined, field: string): number =>
    typeof row?.[field] === 'number' ? row[field] : 0;
const readNationMeta = (row: { meta?: unknown } | undefined): Record<string, unknown> =>
    typeof row?.meta === 'object' && row.meta !== null && !Array.isArray(row.meta)
        ? (row.meta as Record<string, unknown>)
        : {};
const readGeneralMeta = readNationMeta;
const NPC_SEIZURE_MESSAGE_TEXT = '몰수를 하다니... 이것이 윗사람이 할 짓이란 말입니까...';

const ignoredLifecyclePaths = [
    /^generalTurns/,
    /^nationTurns/,
    /^logs/,
    /^messages/,
    /^world\.turnTime$/,
    /^generals\[[^\]]+\]\.(?:turnTime|recentWarTime|lastTurn|killTurn|mySet)(?:\.|$)/,
    /^generals\[[^\]]+\]\.meta(?:\.|$)/,
    /^nations\[[^\]]+\]\.meta\.(?:turn_last_\d+|next_execute_.+|capset|tech|gennum|war|surlimit|strategic_cmd_limit)(?:\.|$)/,
];

const general = (id: number, nationId: number, cityId: number, officerLevel: number): Record<string, unknown> => ({
    id,
    nationId,
    cityId,
    troopId: 0,
    leadership: 90,
    strength: 80,
    intelligence: 70,
    leadershipExp: 0,
    strengthExp: 0,
    intelExp: 0,
    experience: 1000,
    dedication: 1000,
    expLevel: 0,
    officerLevel,
    officerCityId: officerLevel >= 5 ? cityId : 0,
    injury: 0,
    age: 30,
    gold: 100_000,
    rice: 100_000,
    crew: 1_000,
    crewTypeId: 1100,
    train: 50,
    atmos: 50,
    killTurn: 24,
    npcState: 0,
    blockState: 0,
    personality: 'None',
    specialDomestic: 'None',
    specialWar: 'None',
    itemHorse: 'None',
    itemWeapon: 'None',
    itemBook: 'None',
    itemExtra: 'None',
    meta: {},
});

interface FixturePatches {
    world?: Partial<NonNullable<NonNullable<TurnCommandFixtureRequest['setup']>['world']>>;
    generals?: Record<number, Record<string, unknown>>;
    nations?: Record<number, Record<string, unknown>>;
    cities?: Record<number, Record<string, unknown>>;
    troops?: Array<Record<string, unknown>>;
    diplomacy?: Record<string, Record<string, unknown>>;
    randomFoundingCandidateCityIds?: number[];
}

type NationMatrixCase = [string, Record<string, unknown> | undefined, FixturePatches?];

const researchCase = (action: string, command: string, term: number): NationMatrixCase => [
    action,
    undefined,
    {
        nations: {
            1: {
                turnLastByOfficerLevel: {
                    12: { command, term },
                },
            },
        },
    },
];

const researchConfigs: Record<
    string,
    {
        command: string;
        auxKey: string;
        preReqTurn: number;
        cost: number;
    }
> = {
    event_원융노병연구: {
        command: '원융노병 연구',
        auxKey: 'can_원융노병사용',
        preReqTurn: 23,
        cost: 100_000,
    },
    event_화시병연구: {
        command: '화시병 연구',
        auxKey: 'can_화시병사용',
        preReqTurn: 11,
        cost: 50_000,
    },
    event_음귀병연구: {
        command: '음귀병 연구',
        auxKey: 'can_음귀병사용',
        preReqTurn: 11,
        cost: 50_000,
    },
    event_대검병연구: {
        command: '대검병 연구',
        auxKey: 'can_대검병사용',
        preReqTurn: 11,
        cost: 50_000,
    },
    event_화륜차연구: {
        command: '화륜차 연구',
        auxKey: 'can_화륜차사용',
        preReqTurn: 23,
        cost: 100_000,
    },
    event_산저병연구: {
        command: '산저병 연구',
        auxKey: 'can_산저병사용',
        preReqTurn: 11,
        cost: 50_000,
    },
    event_극병연구: {
        command: '극병 연구',
        auxKey: 'can_극병사용',
        preReqTurn: 23,
        cost: 100_000,
    },
    event_상병연구: {
        command: '상병 연구',
        auxKey: 'can_상병사용',
        preReqTurn: 23,
        cost: 100_000,
    },
    event_무희연구: {
        command: '무희 연구',
        auxKey: 'can_무희사용',
        preReqTurn: 23,
        cost: 100_000,
    },
};

const buildRequest = (
    action: string,
    args?: Record<string, unknown>,
    fixturePatches: FixturePatches = {}
): TurnCommandFixtureRequest => ({
    kind: 'nation',
    actorGeneralId: 1,
    action,
    ...(args ? { args } : {}),
    setup: {
        isolateWorld: true,
        world: {
            startYear: 180,
            year: 190,
            month: 1,
            hiddenSeed: 'turn-command-nation-matrix-v1',
            ...fixturePatches.world,
        },
        nations: [
            {
                id: 1,
                name: '아국',
                capitalCityId: 3,
                gold: 1_000_000,
                rice: 1_000_000,
                tech: 1000,
                level: 1,
                typeCode: 'che_명가',
                war: 0,
                diplomacyLimit: 0,
                strategicCommandLimit: 0,
                generalCount: 2,
                meta: { can_국호변경: 1, can_국기변경: 1, surlimit: 0 },
                ...fixturePatches.nations?.[1],
            },
            {
                id: 2,
                name: '타국',
                capitalCityId: 70,
                gold: 1_000_000,
                rice: 1_000_000,
                tech: 1000,
                level: 1,
                typeCode: 'che_명가',
                war: 0,
                diplomacyLimit: 0,
                strategicCommandLimit: 0,
                generalCount: 1,
                meta: { surlimit: 0 },
                ...fixturePatches.nations?.[2],
            },
        ],
        cities: [
            {
                id: 3,
                nationId: 1,
                population: 100_000,
                agriculture: 1_000,
                commerce: 1_000,
                security: 1_000,
                defence: 1_000,
                wall: 1_000,
                supplyState: 1,
                frontState: 0,
                state: 0,
                term: 0,
                trust: 80,
                trade: 100,
                ...fixturePatches.cities?.[3],
            },
            {
                id: 70,
                nationId: 2,
                population: 100_000,
                agriculture: 1_000,
                commerce: 1_000,
                security: 1_000,
                defence: 1_000,
                wall: 1_000,
                supplyState: 1,
                frontState: 1,
                state: 0,
                term: 0,
                trust: 80,
                trade: 100,
                ...fixturePatches.cities?.[70],
            },
            ...Object.entries(fixturePatches.cities ?? {})
                .filter(([id]) => !['3', '70'].includes(id))
                .map(([id, patch]) => ({
                    id: Number(id),
                    nationId: 0,
                    population: 100_000,
                    agriculture: 1_000,
                    commerce: 1_000,
                    security: 1_000,
                    defence: 1_000,
                    wall: 1_000,
                    supplyState: 1,
                    frontState: 0,
                    state: 0,
                    term: 0,
                    trust: 80,
                    trade: 100,
                    ...patch,
                })),
        ],
        generals: [
            { ...general(1, 1, 3, 12), ...fixturePatches.generals?.[1] },
            { ...general(2, 2, 70, 12), ...fixturePatches.generals?.[2] },
            { ...general(3, 1, 3, 1), ...fixturePatches.generals?.[3] },
            ...Object.entries(fixturePatches.generals ?? {})
                .filter(([id]) => !['1', '2', '3'].includes(id))
                .map(([id, patch]) => ({
                    ...general(
                        Number(id),
                        typeof patch.nationId === 'number' ? patch.nationId : 0,
                        typeof patch.cityId === 'number' ? patch.cityId : 3,
                        typeof patch.officerLevel === 'number' ? patch.officerLevel : 1
                    ),
                    ...patch,
                })),
        ],
        ...(fixturePatches.troops ? { troops: fixturePatches.troops } : {}),
        ...(fixturePatches.randomFoundingCandidateCityIds
            ? { randomFoundingCandidateCityIds: fixturePatches.randomFoundingCandidateCityIds }
            : {}),
        diplomacy: [
            {
                fromNationId: 1,
                toNationId: 2,
                state: 3,
                term: 0,
                dead: 0,
                ...fixturePatches.diplomacy?.['1:2'],
            },
            {
                fromNationId: 2,
                toNationId: 1,
                state: 3,
                term: 0,
                dead: 0,
                ...fixturePatches.diplomacy?.['2:1'],
            },
        ],
    },
    observe: {
        generalIds: [
            1,
            2,
            3,
            4,
            5,
            6,
            ...Object.keys(fixturePatches.generals ?? {})
                .map(Number)
                .filter((id) => ![1, 2, 3, 4, 5, 6].includes(id)),
        ],
        cityIds: [
            3,
            70,
            ...Object.keys(fixturePatches.cities ?? {})
                .map(Number)
                .filter((id) => id !== 3 && id !== 70),
            ...(fixturePatches.randomFoundingCandidateCityIds ?? []).filter((id) => id !== 3 && id !== 70),
        ],
        nationIds: [1, 2],
        ...(action === 'che_백성동원' || action === 'che_이호경식'
            ? {
                  nationCooldowns: [
                      {
                          nationId: 1,
                          actionName: action === 'che_백성동원' ? '백성동원' : '이호경식',
                      },
                  ],
              }
            : {}),
        logAfterId: 0,
        messageAfterId: 0,
    },
});

const cases: NationMatrixCase[] = [
    ['휴식', undefined],
    ['che_포상', { isGold: true, amount: 100, destGeneralID: 3 }],
    ['che_선전포고', { destNationID: 2 }],
    ['che_국호변경', { nationName: '신아국' }],
    ['che_국기변경', { colorType: 1 }],
    ['che_몰수', { isGold: true, amount: 100, destGeneralID: 3 }],
    ['che_물자원조', { destNationID: 2, amountList: [100, 200] }],
    ['che_불가침제의', { destNationID: 2, year: 191, month: 1 }],
    [
        'che_부대탈퇴지시',
        { destGeneralID: 3 },
        {
            generals: { 1: { troopId: 1 }, 3: { troopId: 1 } },
            troops: [{ id: 1, nationId: 1, name: '조조군' }],
        },
    ],
    ['che_발령', { destGeneralID: 3, destCityID: 70 }, { cities: { 70: { nationId: 1 } } }],
    ['che_종전제의', { destNationID: 2 }, { diplomacy: { '1:2': { state: 0 }, '2:1': { state: 0 } } }],
    ['che_불가침파기제의', { destNationID: 2 }, { diplomacy: { '1:2': { state: 7 }, '2:1': { state: 7 } } }],
    ['cr_인구이동', { destCityID: 70, amount: 1000 }, { cities: { 70: { nationId: 1, supplyState: 1 } } }],
    [
        'che_천도',
        { destCityID: 70 },
        {
            nations: {
                1: {
                    capitalRevision: 0,
                    turnLastByOfficerLevel: {
                        12: {
                            command: '천도',
                            arg: { destCityID: 70 },
                            term: 2,
                            seq: 0,
                        },
                    },
                },
            },
            cities: { 70: { nationId: 1, supplyState: 1 } },
        },
    ],
    [
        'che_증축',
        undefined,
        {
            nations: {
                1: {
                    capitalRevision: 0,
                    turnLastByOfficerLevel: {
                        12: { command: '증축', arg: {}, term: 5, seq: 0 },
                    },
                },
            },
            cities: { 3: { level: 7 } },
        },
    ],
    [
        'che_감축',
        undefined,
        {
            nations: {
                1: {
                    capitalRevision: 0,
                    turnLastByOfficerLevel: {
                        12: { command: '감축', arg: {}, term: 5, seq: 0 },
                    },
                },
            },
            cities: { 3: { level: 9 } },
        },
    ],
    [
        'che_무작위수도이전',
        undefined,
        {
            world: { year: 181 },
            nations: {
                1: {
                    meta: {
                        can_무작위수도이전: 1,
                    },
                    turnLastByOfficerLevel: {
                        12: { command: '무작위 수도 이전', arg: {}, term: 1 },
                    },
                },
            },
            cities: { 70: { nationId: 0, supplyState: 0 } },
            randomFoundingCandidateCityIds: [70],
        },
    ],
    researchCase('event_원융노병연구', '원융노병 연구', 23),
    researchCase('event_화시병연구', '화시병 연구', 11),
    researchCase('event_음귀병연구', '음귀병 연구', 11),
    researchCase('event_대검병연구', '대검병 연구', 11),
    researchCase('event_화륜차연구', '화륜차 연구', 23),
    researchCase('event_산저병연구', '산저병 연구', 11),
    researchCase('event_극병연구', '극병 연구', 23),
    researchCase('event_상병연구', '상병 연구', 23),
    researchCase('event_무희연구', '무희 연구', 23),
    ['che_백성동원', { destCityID: 70 }, { cities: { 70: { nationId: 1 } } }],
    [
        'che_이호경식',
        { destNationID: 2 },
        { diplomacy: { '1:2': { state: 1, term: 12 }, '2:1': { state: 1, term: 12 } } },
    ],
    ['che_급습', { destNationID: 2 }, { diplomacy: { '1:2': { state: 1, term: 12 }, '2:1': { state: 1, term: 12 } } }],
    [
        'che_필사즉생',
        undefined,
        {
            nations: {
                1: {
                    turnLastByOfficerLevel: {
                        12: { command: '필사즉생', arg: {}, term: 2 },
                    },
                },
            },
            diplomacy: { '1:2': { state: 0 }, '2:1': { state: 0 } },
        },
    ],
    [
        'che_허보',
        { destCityID: 70 },
        {
            nations: {
                1: {
                    turnLastByOfficerLevel: {
                        12: { command: '허보', arg: { destCityID: 70 }, term: 1 },
                    },
                    coreTurnLastByOfficerLevel: {
                        12: { command: '허보', arg: { destCityId: 70 }, term: 1 },
                    },
                },
            },
            diplomacy: { '1:2': { state: 0 }, '2:1': { state: 0 } },
        },
    ],
    [
        'che_초토화',
        { destCityID: 70 },
        {
            nations: {
                1: {
                    turnLastByOfficerLevel: {
                        12: { command: '초토화', arg: { destCityID: 70 }, term: 2 },
                    },
                    coreTurnLastByOfficerLevel: {
                        12: { command: '초토화', arg: { destCityId: 70 }, term: 2 },
                    },
                },
            },
            cities: { 70: { nationId: 1, supplyState: 1 } },
        },
    ],
    [
        'che_의병모집',
        undefined,
        {
            nations: {
                1: {
                    turnLastByOfficerLevel: {
                        12: { command: '의병모집', term: 2 },
                    },
                },
            },
        },
    ],
    [
        'che_수몰',
        { destCityID: 70 },
        {
            nations: {
                1: {
                    turnLastByOfficerLevel: {
                        12: { command: '수몰', arg: { destCityID: 70 }, term: 2 },
                    },
                    coreTurnLastByOfficerLevel: {
                        12: { command: '수몰', arg: { destCityId: 70 }, term: 2 },
                    },
                },
            },
            diplomacy: { '1:2': { state: 0 }, '2:1': { state: 0 } },
        },
    ],
    [
        'che_피장파장',
        { destNationID: 2, commandType: 'che_필사즉생' },
        {
            nations: {
                1: {
                    turnLastByOfficerLevel: {
                        12: {
                            command: '피장파장',
                            arg: { destNationID: 2, commandType: 'che_필사즉생' },
                            term: 1,
                        },
                    },
                    coreTurnLastByOfficerLevel: {
                        12: {
                            command: '피장파장',
                            arg: { destNationId: 2, commandType: 'che_필사즉생' },
                            term: 1,
                        },
                    },
                },
            },
            diplomacy: { '1:2': { state: 0 }, '2:1': { state: 0 } },
        },
    ],
];

integration('nation command success matrix', () => {
    it.each(cases)(
        '%s matches the legacy state delta and command RNG',
        async (action, args, fixturePatches) => {
            const request = buildRequest(action, args, fixturePatches);
            const reference = runReferenceTurnCommandTraceRequest(
                workspaceRoot!,
                request as unknown as Record<string, unknown>
            );
            const core = await runCoreTurnCommandTrace(request, reference.before);
            if (process.env.TURN_DIFFERENTIAL_DEBUG === '1') {
                process.stderr.write(
                    `${JSON.stringify(
                        {
                            action,
                            referenceOutcome: reference.execution.outcome,
                            coreOutcome: core.execution.outcome,
                            differences: compareTurnSnapshotDeltas(
                                reference.before,
                                reference.after,
                                core.before,
                                core.after,
                                { ignoredPathPatterns: ignoredLifecyclePaths }
                            ),
                        },
                        null,
                        2
                    )}\n`
                );
            }

            expect(core.execution.outcome).toMatchObject({
                requestedAction: action,
                actionKey: action,
                usedFallback: false,
            });
            expect(reference.execution.outcome).toMatchObject({ completed: true });
            expect(core.execution.outcome).not.toHaveProperty('blockedReason');
            expect(core.rng).toEqual(reference.rng);
            expect(
                compareTurnSnapshotDeltas(reference.before, reference.after, core.before, core.after, {
                    ignoredPathPatterns: ignoredLifecyclePaths,
                })
            ).toEqual([]);
            const researchConfig = researchConfigs[action];
            if (researchConfig) {
                for (const snapshot of [reference, core]) {
                    const nationBefore = snapshot.before.nations.find((entry) => entry.id === 1);
                    const nationAfter = snapshot.after.nations.find((entry) => entry.id === 1);
                    const generalBefore = snapshot.before.generals.find((entry) => entry.id === 1);
                    const generalAfter = snapshot.after.generals.find((entry) => entry.id === 1);
                    const expectedProgress = 5 * (researchConfig.preReqTurn + 1);

                    expect(readNationResource(nationBefore, 'gold') - readNationResource(nationAfter, 'gold')).toBe(
                        researchConfig.cost
                    );
                    expect(readNationResource(nationBefore, 'rice') - readNationResource(nationAfter, 'rice')).toBe(
                        researchConfig.cost
                    );
                    expect(
                        readNumericField(generalAfter, 'experience') - readNumericField(generalBefore, 'experience')
                    ).toBe(expectedProgress);
                    expect(
                        readNumericField(generalAfter, 'dedication') - readNumericField(generalBefore, 'dedication')
                    ).toBe(expectedProgress);
                    expect(readNumericField(readNationMeta(nationAfter), researchConfig.auxKey)).toBe(1);
                    expect(snapshot.rng).toEqual([]);
                }
            }
        },
        120_000
    );
});

const nationResourceAmountCases: Array<{
    name: string;
    action: 'che_포상' | 'che_몰수';
    args: Record<string, unknown>;
    expectedAmount: number;
}> = [
    {
        name: 'award rounds a half unit up',
        action: 'che_포상',
        args: { isGold: true, amount: 150, destGeneralID: 3 },
        expectedAmount: 200,
    },
    {
        name: 'award clamps below the minimum',
        action: 'che_포상',
        args: { isGold: true, amount: 1, destGeneralID: 3 },
        expectedAmount: 100,
    },
    {
        name: 'award clamps above the maximum',
        action: 'che_포상',
        args: { isGold: true, amount: 10_050, destGeneralID: 3 },
        expectedAmount: 10_000,
    },
    {
        name: 'seizure rounds a half unit up',
        action: 'che_몰수',
        args: { isGold: true, amount: 150, destGeneralID: 3 },
        expectedAmount: 200,
    },
    {
        name: 'seizure clamps below the minimum',
        action: 'che_몰수',
        args: { isGold: true, amount: 1, destGeneralID: 3 },
        expectedAmount: 100,
    },
    {
        name: 'seizure clamps above the maximum',
        action: 'che_몰수',
        args: { isGold: true, amount: 10_050, destGeneralID: 3 },
        expectedAmount: 10_000,
    },
];

integration('nation command resource amount normalization matrix', () => {
    it.each(nationResourceAmountCases)(
        '$name matches legacy rounding and clamp semantics',
        async ({ action, args, expectedAmount }) => {
            const request = buildRequest(action, args);
            const reference = runReferenceTurnCommandTraceRequest(
                workspaceRoot!,
                request as unknown as Record<string, unknown>
            );
            const core = await runCoreTurnCommandTrace(request, reference.before);
            const referenceTargetBefore = reference.before.generals.find((entry) => entry.id === 3);
            const referenceTargetAfter = reference.after.generals.find((entry) => entry.id === 3);
            const coreTargetBefore = core.before.generals.find((entry) => entry.id === 3);
            const coreTargetAfter = core.after.generals.find((entry) => entry.id === 3);
            const referenceAmount =
                action === 'che_포상'
                    ? readGold(referenceTargetAfter) - readGold(referenceTargetBefore)
                    : readGold(referenceTargetBefore) - readGold(referenceTargetAfter);
            const coreAmount =
                action === 'che_포상'
                    ? readGold(coreTargetAfter) - readGold(coreTargetBefore)
                    : readGold(coreTargetBefore) - readGold(coreTargetAfter);

            expect(reference.execution.outcome).toMatchObject({ completed: true });
            expect(core.execution.outcome).toMatchObject({
                requestedAction: action,
                actionKey: action,
                usedFallback: false,
            });
            expect(referenceAmount).toBe(expectedAmount);
            expect(coreAmount).toBe(expectedAmount);
            expect(core.rng).toEqual(reference.rng);
            expect(
                compareTurnSnapshotDeltas(reference.before, reference.after, core.before, core.after, {
                    ignoredPathPatterns: ignoredLifecyclePaths,
                })
            ).toEqual([]);
        },
        120_000
    );
});

const nationResourceBoundaryCases: Array<{
    name: string;
    action: 'che_포상' | 'che_몰수';
    args: Record<string, unknown>;
    fixturePatches?: FixturePatches;
    completed: boolean;
}> = [
    {
        name: 'award is limited to the available nation gold',
        action: 'che_포상',
        args: { isGold: true, amount: 10_000, destGeneralID: 3 },
        fixturePatches: { nations: { 1: { gold: 5_000 } } },
        completed: true,
    },
    {
        name: 'award keeps the legacy base rice reserve',
        action: 'che_포상',
        args: { isGold: false, amount: 10_000, destGeneralID: 3 },
        fixturePatches: { nations: { 1: { rice: 2_100 } } },
        completed: true,
    },
    {
        name: 'award rejects the actor as its target',
        action: 'che_포상',
        args: { isGold: true, amount: 100, destGeneralID: 1 },
        completed: false,
    },
    {
        name: 'seizure is limited to the target general gold',
        action: 'che_몰수',
        args: { isGold: true, amount: 1_000, destGeneralID: 3 },
        fixturePatches: { generals: { 3: { gold: 50 } } },
        completed: true,
    },
    {
        name: 'seizure rejects the actor as its target',
        action: 'che_몰수',
        args: { isGold: true, amount: 100, destGeneralID: 1 },
        completed: false,
    },
];

integration('nation command resource balance and target boundaries', () => {
    it.each(nationResourceBoundaryCases)(
        '$name matches legacy completion, RNG, and state delta',
        async ({ action, args, fixturePatches, completed }) => {
            const request = buildRequest(action, args, fixturePatches);
            const reference = runReferenceTurnCommandTraceRequest(
                workspaceRoot!,
                request as unknown as Record<string, unknown>
            );
            const core = await runCoreTurnCommandTrace(request, reference.before);

            expect(reference.execution.outcome).toMatchObject({ completed });
            expect(core.execution.outcome).toMatchObject({
                requestedAction: action,
                actionKey: completed ? action : '휴식',
                usedFallback: !completed,
            });
            expect(core.rng).toEqual(reference.rng);
            expect(
                compareTurnSnapshotDeltas(reference.before, reference.after, core.before, core.after, {
                    ignoredPathPatterns: ignoredLifecyclePaths,
                })
            ).toEqual([]);
        },
        120_000
    );
});

integration('nation seizure NPC public message parity', () => {
    it('matches the legacy fixed-seed RNG and public message side effect', async () => {
        const request = buildRequest(
            'che_몰수',
            { isGold: true, amount: 100, destGeneralID: 3 },
            {
                world: { hiddenSeed: 'seizure-message-37' },
                generals: { 3: { name: '몰수NPC', npcState: 2 } },
            }
        );
        const reference = runReferenceTurnCommandTraceRequest(
            workspaceRoot!,
            request as unknown as Record<string, unknown>
        );
        const core = await runCoreTurnCommandTrace(request, reference.before);

        expect(reference.execution.outcome).toMatchObject({ completed: true });
        expect(reference.rng).toHaveLength(2);
        expect(reference.rng.map((call) => call.operation)).toEqual(['nextFloat1', 'nextInt']);
        expect(core.rng).toEqual(reference.rng);
        const referenceMessages = reference.after.messages.slice(reference.before.messages.length);
        expect(referenceMessages).toHaveLength(1);
        expect(core.after.messages).toHaveLength(1);
        expect(referenceMessages[0]).toMatchObject({
            mailbox: 9999,
            type: 'public',
            sourceId: 3,
            destinationId: 9999,
            payload: {
                src: { id: 3, name: '몰수NPC', nation_id: 1, nation: '아국' },
                dest: { id: 3, name: '몰수NPC', nation_id: 1, nation: '아국' },
                text: NPC_SEIZURE_MESSAGE_TEXT,
            },
        });
        expect(core.after.messages[0]).toMatchObject({
            payload: {
                msgType: 'public',
                src: { generalId: 3, generalName: '몰수NPC', nationId: 1, nationName: '아국' },
                dest: { generalId: 3, generalName: '몰수NPC', nationId: 1, nationName: '아국' },
                text: NPC_SEIZURE_MESSAGE_TEXT,
            },
        });
    }, 120_000);
});

integration('nation seizure zero target balance parity', () => {
    it('matches the legacy zero-amount logs for a user target', async () => {
        const request = buildRequest(
            'che_몰수',
            { isGold: true, amount: 100, destGeneralID: 3 },
            { generals: { 3: { name: '무자원장수', gold: 0, npcState: 0 } } }
        );
        const reference = runReferenceTurnCommandTraceRequest(
            workspaceRoot!,
            request as unknown as Record<string, unknown>
        );
        const core = await runCoreTurnCommandTrace(request, reference.before);
        const referenceLogs = reference.after.logs.slice(reference.before.logs.length);

        expect(reference.execution.outcome).toMatchObject({ completed: true });
        expect(core.execution.outcome).toMatchObject({
            requestedAction: 'che_몰수',
            actionKey: 'che_몰수',
            usedFallback: false,
        });
        expect(reference.rng).toEqual([]);
        expect(core.rng).toEqual(reference.rng);
        expect(referenceLogs.map((entry) => entry.text)).toEqual(
            expect.arrayContaining([
                expect.stringContaining('금 0를 몰수 당했습니다.'),
                expect.stringContaining('금 <C>0</>를 몰수했습니다.'),
            ])
        );
        expect(core.after.logs.map((entry) => entry.text)).toEqual(
            expect.arrayContaining([
                expect.stringContaining('금 0를 몰수 당했습니다.'),
                expect.stringContaining('금 <C>0</>를 몰수했습니다.'),
            ])
        );
        expect(
            compareTurnSnapshotDeltas(reference.before, reference.after, core.before, core.after, {
                ignoredPathPatterns: ignoredLifecyclePaths,
            })
        ).toEqual([]);
    }, 120_000);

    it('preserves NPC message RNG and side effects before applying a zero delta', async () => {
        const request = buildRequest(
            'che_몰수',
            { isGold: true, amount: 100, destGeneralID: 3 },
            {
                world: { hiddenSeed: 'seizure-message-37' },
                generals: { 3: { name: '무자원NPC', gold: 0, npcState: 2 } },
            }
        );
        const reference = runReferenceTurnCommandTraceRequest(
            workspaceRoot!,
            request as unknown as Record<string, unknown>
        );
        const core = await runCoreTurnCommandTrace(request, reference.before);
        const referenceMessages = reference.after.messages.slice(reference.before.messages.length);

        expect(reference.execution.outcome).toMatchObject({ completed: true });
        expect(reference.rng.map((call) => call.operation)).toEqual(['nextFloat1', 'nextInt']);
        expect(core.rng).toEqual(reference.rng);
        expect(referenceMessages).toHaveLength(1);
        expect(core.after.messages).toHaveLength(1);
        expect(referenceMessages[0]).toMatchObject({
            type: 'public',
            sourceId: 3,
            payload: { text: NPC_SEIZURE_MESSAGE_TEXT },
        });
        expect(core.after.messages[0]).toMatchObject({
            payload: { msgType: 'public', text: NPC_SEIZURE_MESSAGE_TEXT },
        });
        expect(
            compareTurnSnapshotDeltas(reference.before, reference.after, core.before, core.after, {
                ignoredPathPatterns: ignoredLifecyclePaths,
            })
        ).toEqual([]);
    }, 120_000);
});

const nationPersonnelTargetCases: Array<{
    name: string;
    action: 'che_포상' | 'che_몰수';
    destGeneralID: number;
}> = [
    {
        name: 'award rejects a missing target general',
        action: 'che_포상',
        destGeneralID: 9999,
    },
    {
        name: 'award rejects a foreign target general',
        action: 'che_포상',
        destGeneralID: 2,
    },
    {
        name: 'seizure rejects a missing target general',
        action: 'che_몰수',
        destGeneralID: 9999,
    },
    {
        name: 'seizure rejects a foreign target general',
        action: 'che_몰수',
        destGeneralID: 2,
    },
];

integration('nation award and seizure target constraints', () => {
    it.each(nationPersonnelTargetCases)(
        '$name matches legacy fallback, RNG, and semantic delta',
        async ({ action, destGeneralID }) => {
            const request = buildRequest(action, { isGold: true, amount: 100, destGeneralID });
            const reference = runReferenceTurnCommandTraceRequest(
                workspaceRoot!,
                request as unknown as Record<string, unknown>
            );
            const core = await runCoreTurnCommandTrace(request, reference.before);

            expect(reference.execution.outcome).toMatchObject({ completed: false });
            expect(core.execution.outcome).toMatchObject({
                requestedAction: action,
                actionKey: '휴식',
                usedFallback: true,
            });
            expect(reference.rng).toEqual([]);
            expect(core.rng).toEqual(reference.rng);
            expect(
                compareTurnSnapshotDeltas(reference.before, reference.after, core.before, core.after, {
                    ignoredPathPatterns: ignoredLifecyclePaths,
                })
            ).toEqual([]);
        },
        120_000
    );
});

const materialAidResourceCases: Array<{
    name: string;
    amountList: [number, number];
    fixturePatches?: FixturePatches;
    completed: boolean;
    expectedGold: number;
    expectedRice: number;
}> = [
    {
        name: 'allows a zero rice component',
        amountList: [100, 0],
        completed: true,
        expectedGold: 100,
        expectedRice: 0,
    },
    {
        name: 'allows a zero gold component',
        amountList: [0, 100],
        completed: true,
        expectedGold: 0,
        expectedRice: 100,
    },
    {
        name: 'clamps gold to the source available balance',
        amountList: [100, 0],
        fixturePatches: { nations: { 1: { gold: 50 } } },
        completed: true,
        expectedGold: 50,
        expectedRice: 0,
    },
    {
        name: 'clamps rice while preserving the source base reserve',
        amountList: [0, 100],
        fixturePatches: { nations: { 1: { rice: 2_050 } } },
        completed: true,
        expectedGold: 0,
        expectedRice: 50,
    },
    {
        name: 'allows the exact rank aid limit',
        amountList: [10_000, 0],
        completed: true,
        expectedGold: 10_000,
        expectedRice: 0,
    },
    {
        name: 'rejects an amount above the rank aid limit',
        amountList: [10_001, 0],
        completed: false,
        expectedGold: 0,
        expectedRice: 0,
    },
    {
        name: 'rejects two zero components',
        amountList: [0, 0],
        completed: false,
        expectedGold: 0,
        expectedRice: 0,
    },
];

integration('nation material aid resource boundaries', () => {
    it.each(materialAidResourceCases)(
        '$name matches legacy completion, amounts, RNG, and semantic delta',
        async ({ amountList, fixturePatches, completed, expectedGold, expectedRice }) => {
            const request = buildRequest('che_물자원조', { destNationID: 2, amountList }, fixturePatches);
            const reference = runReferenceTurnCommandTraceRequest(
                workspaceRoot!,
                request as unknown as Record<string, unknown>
            );
            const core = await runCoreTurnCommandTrace(request, reference.before);

            const referenceSourceBefore = reference.before.nations.find((entry) => entry.id === 1);
            const referenceSourceAfter = reference.after.nations.find((entry) => entry.id === 1);
            const referenceDestBefore = reference.before.nations.find((entry) => entry.id === 2);
            const referenceDestAfter = reference.after.nations.find((entry) => entry.id === 2);
            const coreSourceBefore = core.before.nations.find((entry) => entry.id === 1);
            const coreSourceAfter = core.after.nations.find((entry) => entry.id === 1);
            const coreDestBefore = core.before.nations.find((entry) => entry.id === 2);
            const coreDestAfter = core.after.nations.find((entry) => entry.id === 2);

            for (const [resource, expected] of [
                ['gold', expectedGold],
                ['rice', expectedRice],
            ] as const) {
                expect(
                    readNationResource(referenceSourceBefore, resource) -
                        readNationResource(referenceSourceAfter, resource)
                ).toBe(expected);
                expect(
                    readNationResource(referenceDestAfter, resource) - readNationResource(referenceDestBefore, resource)
                ).toBe(expected);
                expect(
                    readNationResource(coreSourceBefore, resource) - readNationResource(coreSourceAfter, resource)
                ).toBe(expected);
                expect(readNationResource(coreDestAfter, resource) - readNationResource(coreDestBefore, resource)).toBe(
                    expected
                );
            }

            expect(reference.execution.outcome).toMatchObject({ completed });
            expect(core.execution.outcome).toMatchObject({
                requestedAction: 'che_물자원조',
                actionKey: completed ? 'che_물자원조' : '휴식',
                usedFallback: !completed,
            });
            expect(core.rng).toEqual(reference.rng);
            expect(
                compareTurnSnapshotDeltas(reference.before, reference.after, core.before, core.after, {
                    ignoredPathPatterns: ignoredLifecyclePaths,
                })
            ).toEqual([]);
        },
        120_000
    );

    it('uses the legacy object particle when the rice component is zero', async () => {
        const request = buildRequest('che_물자원조', {
            destNationID: 2,
            amountList: [100, 0],
        });
        const reference = runReferenceTurnCommandTraceRequest(
            workspaceRoot!,
            request as unknown as Record<string, unknown>
        );
        const core = await runCoreTurnCommandTrace(request, reference.before);
        const referenceLogs = reference.after.logs.slice(reference.before.logs.length);

        expect(referenceLogs.map((entry) => entry.text)).toEqual(
            expect.arrayContaining([expect.stringContaining('쌀<C>0</>를 지원')])
        );
        expect(core.after.logs.map((entry) => entry.text)).toEqual(
            expect.arrayContaining([expect.stringContaining('쌀<C>0</>를 지원')])
        );
    }, 120_000);
});

const materialAidConstraintCases: Array<{
    name: string;
    args: Record<string, unknown>;
    fixturePatches?: FixturePatches;
}> = [
    {
        name: 'rejects a missing destination nation',
        args: { destNationID: 9999, amountList: [100, 0] },
    },
    {
        name: 'rejects the source nation as destination',
        args: { destNationID: 1, amountList: [100, 0] },
    },
    {
        name: 'rejects a source nation under diplomacy restriction',
        args: { destNationID: 2, amountList: [100, 0] },
        fixturePatches: { nations: { 1: { diplomacyLimit: 1 } } },
    },
    {
        name: 'rejects a destination nation under diplomacy restriction',
        args: { destNationID: 2, amountList: [100, 0] },
        fixturePatches: { nations: { 2: { diplomacyLimit: 1 } } },
    },
    {
        name: 'rejects a negative component',
        args: { destNationID: 2, amountList: [-1, 100] },
    },
    {
        name: 'rejects a fractional component',
        args: { destNationID: 2, amountList: [100.5, 0] },
    },
    {
        name: 'rejects a one-element amount list',
        args: { destNationID: 2, amountList: [100] },
    },
    {
        name: 'rejects a three-element amount list',
        args: { destNationID: 2, amountList: [100, 0, 0] },
    },
    {
        name: 'rejects a non-array amount list',
        args: { destNationID: 2, amountList: '100,0' },
    },
    {
        name: 'rejects a zero destination nation ID',
        args: { destNationID: 0, amountList: [100, 0] },
    },
    {
        name: 'rejects a fractional destination nation ID',
        args: { destNationID: 2.5, amountList: [100, 0] },
    },
];

integration('nation material aid target and input constraints', () => {
    it.each(materialAidConstraintCases)(
        '$name matches legacy fallback, RNG, and semantic delta',
        async ({ args, fixturePatches }) => {
            const request = buildRequest('che_물자원조', args, fixturePatches);
            const reference = runReferenceTurnCommandTraceRequest(
                workspaceRoot!,
                request as unknown as Record<string, unknown>
            );
            const core = await runCoreTurnCommandTrace(request, reference.before);

            expect(reference.execution.outcome).toMatchObject({ completed: false });
            expect(core.execution.outcome).toMatchObject({
                requestedAction: 'che_물자원조',
                actionKey: '휴식',
                usedFallback: true,
            });
            expect(reference.rng).toEqual([]);
            expect(core.rng).toEqual(reference.rng);
            expect(
                compareTurnSnapshotDeltas(reference.before, reference.after, core.before, core.after, {
                    ignoredPathPatterns: ignoredLifecyclePaths,
                })
            ).toEqual([]);
        },
        120_000
    );
});

integration('nation material aid accumulated assistance and officer logs', () => {
    it.each([
        {
            name: 'array entry',
            priorEntry: [1, 250],
        },
        {
            name: 'legacy object entry',
            priorEntry: { 0: 1, 1: 250 },
        },
    ])(
        'accumulates a repeated aid amount from an existing $name',
        async ({ priorEntry }) => {
            const request = buildRequest(
                'che_물자원조',
                {
                    destNationID: 2,
                    amountList: [100, 200],
                },
                {
                    nations: {
                        2: {
                            nationEnv: {
                                recv_assist: {
                                    n1: priorEntry,
                                    n9: [9, 400],
                                },
                            },
                        },
                    },
                }
            );
            const reference = runReferenceTurnCommandTraceRequest(
                workspaceRoot!,
                request as unknown as Record<string, unknown>
            );
            const core = await runCoreTurnCommandTrace(request, reference.before);
            const referenceDest = reference.after.nations.find((entry) => entry.id === 2);
            const coreDest = core.after.nations.find((entry) => entry.id === 2);

            expect(readNationMeta(referenceDest).recv_assist).toEqual({
                n1: [1, 550],
                n9: [9, 400],
            });
            expect(readNationMeta(coreDest).recv_assist).toEqual(readNationMeta(referenceDest).recv_assist);
            expect(core.rng).toEqual(reference.rng);
            expect(
                compareTurnSnapshotDeltas(reference.before, reference.after, core.before, core.after, {
                    ignoredPathPatterns: ignoredLifecyclePaths,
                })
            ).toEqual([]);
        },
        120_000
    );

    it('notifies eligible officers in both nations with the legacy messages', async () => {
        const request = buildRequest(
            'che_물자원조',
            {
                destNationID: 2,
                amountList: [100, 200],
            },
            {
                generals: {
                    3: { officerLevel: 5 },
                    5: { nationId: 2, cityId: 70, officerLevel: 5, officerCityId: 70 },
                },
            }
        );
        const reference = runReferenceTurnCommandTraceRequest(
            workspaceRoot!,
            request as unknown as Record<string, unknown>
        );
        const core = await runCoreTurnCommandTrace(request, reference.before);
        const referenceLogs = reference.after.logs.slice(reference.before.logs.length);
        const sourceOfficerLog = {
            generalId: 3,
            text: expect.stringContaining('<D><b>타국</b></>으로 금<C>100</> 쌀<C>200</>을 지원했습니다.'),
        };
        const destinationOfficerLog = {
            generalId: 5,
            text: expect.stringContaining('<D><b>아국</b></>에서 금<C>100</> 쌀<C>200</>을 원조했습니다.'),
        };

        expect(referenceLogs).toEqual(
            expect.arrayContaining([
                expect.objectContaining(sourceOfficerLog),
                expect.objectContaining(destinationOfficerLog),
            ])
        );
        expect(core.after.logs).toEqual(
            expect.arrayContaining([
                expect.objectContaining(sourceOfficerLog),
                expect.objectContaining(destinationOfficerLog),
            ])
        );
        expect(core.rng).toEqual(reference.rng);
        expect(
            compareTurnSnapshotDeltas(reference.before, reference.after, core.before, core.after, {
                ignoredPathPatterns: ignoredLifecyclePaths,
            })
        ).toEqual([]);
    }, 120_000);
});

const populationMoveCases: Array<{
    name: string;
    amount: unknown;
    fixturePatches?: FixturePatches;
    completed: boolean;
    expectedMoved: number;
    costBasis: number;
}> = [
    {
        name: 'completes a zero population move',
        amount: 0,
        completed: true,
        expectedMoved: 0,
        costBasis: 0,
    },
    {
        name: 'truncates a fractional amount',
        amount: 100.9,
        completed: true,
        expectedMoved: 100,
        costBasis: 100,
    },
    {
        name: 'caps the request and moves only the available population',
        amount: 100_001,
        completed: true,
        expectedMoved: 70_000,
        costBasis: 100_000,
    },
    {
        name: 'charges for the request before clamping to available population',
        amount: 1_000,
        fixturePatches: { cities: { 3: { population: 30_100 } } },
        completed: true,
        expectedMoved: 100,
        costBasis: 1_000,
    },
    {
        name: 'accepts a numeric string amount',
        amount: '1000',
        completed: true,
        expectedMoved: 1_000,
        costBasis: 1_000,
    },
    {
        name: 'rejects a negative integer amount',
        amount: -1,
        completed: false,
        expectedMoved: 0,
        costBasis: 0,
    },
    {
        name: 'allows the exact gold and rice cost',
        amount: 1_000,
        fixturePatches: { nations: { 1: { gold: 2, rice: 2_002 } } },
        completed: true,
        expectedMoved: 1_000,
        costBasis: 1_000,
    },
    {
        name: 'rejects one less than the required gold',
        amount: 1_000,
        fixturePatches: { nations: { 1: { gold: 1, rice: 2_002 } } },
        completed: false,
        expectedMoved: 0,
        costBasis: 0,
    },
    {
        name: 'rejects one less than the required rice reserve',
        amount: 1_000,
        fixturePatches: { nations: { 1: { gold: 2, rice: 2_001 } } },
        completed: false,
        expectedMoved: 0,
        costBasis: 0,
    },
];

integration('nation population move value and resource boundaries', () => {
    it.each(populationMoveCases)(
        '$name matches legacy completion, resources, RNG, and semantic delta',
        async ({ amount, fixturePatches, completed, expectedMoved, costBasis }) => {
            const request = buildRequest(
                'cr_인구이동',
                { destCityID: 70, amount },
                {
                    ...fixturePatches,
                    cities: {
                        ...fixturePatches?.cities,
                        70: {
                            nationId: 1,
                            supplyState: 1,
                            ...fixturePatches?.cities?.[70],
                        },
                    },
                }
            );
            const reference = runReferenceTurnCommandTraceRequest(
                workspaceRoot!,
                request as unknown as Record<string, unknown>
            );
            const core = await runCoreTurnCommandTrace(request, reference.before);
            const referenceSourceBefore = reference.before.cities.find((entry) => entry.id === 3);
            const referenceSourceAfter = reference.after.cities.find((entry) => entry.id === 3);
            const referenceDestBefore = reference.before.cities.find((entry) => entry.id === 70);
            const referenceDestAfter = reference.after.cities.find((entry) => entry.id === 70);
            const coreSourceBefore = core.before.cities.find((entry) => entry.id === 3);
            const coreSourceAfter = core.after.cities.find((entry) => entry.id === 3);
            const coreDestBefore = core.before.cities.find((entry) => entry.id === 70);
            const coreDestAfter = core.after.cities.find((entry) => entry.id === 70);
            const referenceNationBefore = reference.before.nations.find((entry) => entry.id === 1);
            const referenceNationAfter = reference.after.nations.find((entry) => entry.id === 1);
            const coreNationBefore = core.before.nations.find((entry) => entry.id === 1);
            const coreNationAfter = core.after.nations.find((entry) => entry.id === 1);
            const referenceGeneralBefore = reference.before.generals.find((entry) => entry.id === 1);
            const referenceGeneralAfter = reference.after.generals.find((entry) => entry.id === 1);
            const coreGeneralBefore = core.before.generals.find((entry) => entry.id === 1);
            const coreGeneralAfter = core.after.generals.find((entry) => entry.id === 1);
            const develCost =
                typeof reference.before.world.develCost === 'number' ? reference.before.world.develCost : 0;
            const expectedCost = Math.round((develCost * costBasis) / 10_000);
            expect(develCost).toBe(18);

            for (const [before, after, direction] of [
                [referenceSourceBefore, referenceSourceAfter, -1],
                [referenceDestBefore, referenceDestAfter, 1],
                [coreSourceBefore, coreSourceAfter, -1],
                [coreDestBefore, coreDestAfter, 1],
            ] as const) {
                const expectedDelta = expectedMoved === 0 ? 0 : direction * expectedMoved;
                expect(readCityPopulation(after) - readCityPopulation(before)).toBe(expectedDelta);
            }
            for (const [before, after] of [
                [referenceNationBefore, referenceNationAfter],
                [coreNationBefore, coreNationAfter],
            ] as const) {
                expect(readNationResource(before, 'gold') - readNationResource(after, 'gold')).toBe(expectedCost);
                expect(readNationResource(before, 'rice') - readNationResource(after, 'rice')).toBe(expectedCost);
            }
            for (const field of ['experience', 'dedication']) {
                const expectedDelta = completed ? 5 : 0;
                expect(
                    readNumericField(referenceGeneralAfter, field) - readNumericField(referenceGeneralBefore, field)
                ).toBe(expectedDelta);
                expect(readNumericField(coreGeneralAfter, field) - readNumericField(coreGeneralBefore, field)).toBe(
                    expectedDelta
                );
            }
            if (amount === 0) {
                const zeroMoveText = '인구 <C>0</>명을 옮겼습니다.';
                expect(reference.after.logs.slice(reference.before.logs.length).map((entry) => entry.text)).toEqual(
                    expect.arrayContaining([expect.stringContaining(zeroMoveText)])
                );
                expect(core.after.logs.map((entry) => entry.text)).toEqual(
                    expect.arrayContaining([expect.stringContaining(zeroMoveText)])
                );
            }

            expect(reference.execution.outcome).toMatchObject({ completed });
            expect(core.execution.outcome).toMatchObject({
                requestedAction: 'cr_인구이동',
                actionKey: completed ? 'cr_인구이동' : '휴식',
                usedFallback: !completed,
            });
            expect(core.rng).toEqual(reference.rng);
            expect(
                compareTurnSnapshotDeltas(reference.before, reference.after, core.before, core.after, {
                    ignoredPathPatterns: ignoredLifecyclePaths,
                })
            ).toEqual([]);
        },
        120_000
    );
});

const populationMoveConstraintCases: Array<{
    name: string;
    destCityId: unknown;
    fixturePatches?: FixturePatches;
    completed?: boolean;
    coreResolution?: boolean;
}> = [
    {
        name: 'rejects a missing destination city',
        destCityId: 9999,
    },
    {
        name: 'rejects the source city as destination',
        destCityId: 3,
    },
    {
        name: 'accepts a numeric string destination city ID',
        destCityId: '70',
        completed: true,
    },
    {
        name: 'rejects a source city below the minimum population',
        destCityId: 70,
        fixturePatches: { cities: { 3: { population: 30_099 } } },
    },
    {
        name: 'rejects a source city occupied by another nation',
        destCityId: 70,
        fixturePatches: { cities: { 3: { nationId: 2 } } },
    },
    {
        name: 'rejects a destination city occupied by another nation',
        destCityId: 70,
        fixturePatches: { cities: { 70: { nationId: 2 } } },
    },
    {
        name: 'rejects a non-adjacent destination city',
        destCityId: 73,
        fixturePatches: { cities: { 73: { nationId: 1, supplyState: 1 } } },
    },
    {
        name: 'rejects an actor below chief rank',
        destCityId: 70,
        fixturePatches: { generals: { 1: { officerLevel: 4, officerCityId: 0 } } },
        coreResolution: false,
    },
    {
        name: 'rejects an unsupplied source city',
        destCityId: 70,
        fixturePatches: { cities: { 3: { supplyState: 0 } } },
    },
    {
        name: 'rejects an unsupplied destination city',
        destCityId: 70,
        fixturePatches: { cities: { 70: { supplyState: 0 } } },
    },
];

integration('nation population move target and city constraints', () => {
    it.each(populationMoveConstraintCases)(
        '$name matches legacy fallback, RNG, and semantic delta',
        async ({ destCityId, fixturePatches, completed = false, coreResolution = true }) => {
            const request = buildRequest(
                'cr_인구이동',
                { destCityID: destCityId, amount: 1_000 },
                {
                    ...fixturePatches,
                    cities: {
                        ...fixturePatches?.cities,
                        70: {
                            nationId: 1,
                            supplyState: 1,
                            ...fixturePatches?.cities?.[70],
                        },
                    },
                }
            );
            const reference = runReferenceTurnCommandTraceRequest(
                workspaceRoot!,
                request as unknown as Record<string, unknown>
            );
            const core = await runCoreTurnCommandTrace(request, reference.before);

            expect(reference.execution.outcome).toMatchObject({ completed });
            if (coreResolution) {
                expect(core.execution.outcome).toMatchObject({
                    requestedAction: 'cr_인구이동',
                    actionKey: completed ? 'cr_인구이동' : '휴식',
                    usedFallback: !completed,
                });
            } else {
                expect(core.execution.outcome).toBeUndefined();
            }
            expect(core.rng).toEqual(reference.rng);
            expect(
                compareTurnSnapshotDeltas(reference.before, reference.after, core.before, core.after, {
                    ignoredPathPatterns: ignoredLifecyclePaths,
                })
            ).toEqual([]);
        },
        120_000
    );
});

const capitalMoveCases: Array<{
    name: string;
    destCityId: unknown;
    fixturePatches?: FixturePatches;
    completed: boolean;
    referenceDistance: number;
    coreDistance?: number;
}> = [
    {
        name: 'rejects a missing destination city',
        destCityId: 9999,
        completed: false,
        referenceDistance: 0,
    },
    {
        name: 'rejects the current capital',
        destCityId: 3,
        completed: false,
        referenceDistance: 0,
    },
    {
        name: 'accepts a numeric string destination city ID',
        destCityId: '70',
        completed: true,
        referenceDistance: 1,
    },
    {
        name: 'rejects a destination city occupied by another nation',
        destCityId: 70,
        fixturePatches: { cities: { 70: { nationId: 2 } } },
        completed: false,
        referenceDistance: 50,
        coreDistance: 0,
    },
    {
        name: 'rejects an unsupplied destination city',
        destCityId: 70,
        fixturePatches: { cities: { 70: { supplyState: 0 } } },
        completed: false,
        referenceDistance: 1,
    },
    {
        name: 'rejects a source city occupied by another nation',
        destCityId: 70,
        fixturePatches: { cities: { 3: { nationId: 2 } } },
        completed: false,
        referenceDistance: 1,
    },
    {
        name: 'rejects an unsupplied source city',
        destCityId: 70,
        fixturePatches: { cities: { 3: { supplyState: 0 } } },
        completed: false,
        referenceDistance: 1,
    },
    {
        name: 'allows the exact distance-one gold and rice requirement',
        destCityId: 70,
        fixturePatches: { nations: { 1: { gold: 180, rice: 2_180 } } },
        completed: true,
        referenceDistance: 1,
    },
    {
        name: 'rejects one less than the distance-one gold requirement',
        destCityId: 70,
        fixturePatches: { nations: { 1: { gold: 179, rice: 2_180 } } },
        completed: false,
        referenceDistance: 1,
    },
    {
        name: 'rejects one less than the distance-one rice requirement',
        destCityId: 70,
        fixturePatches: { nations: { 1: { gold: 180, rice: 2_179 } } },
        completed: false,
        referenceDistance: 1,
    },
    {
        name: 'rejects an owned city without an owned-city route',
        destCityId: 73,
        fixturePatches: { cities: { 73: { nationId: 1, supplyState: 1 } } },
        completed: false,
        referenceDistance: 50,
        coreDistance: 0,
    },
    {
        name: 'completes a distance-two capital move through an owned city',
        destCityId: 23,
        fixturePatches: {
            nations: { 1: { gold: 360, rice: 2_360 } },
            cities: {
                70: { nationId: 1, supplyState: 1 },
                23: { nationId: 1, supplyState: 1 },
            },
        },
        completed: true,
        referenceDistance: 2,
    },
];

integration('nation capital move target, route, and resource constraints', () => {
    it.each(capitalMoveCases)(
        '$name matches legacy completion, multistep effects, RNG, and semantic delta',
        async ({ destCityId, fixturePatches, completed, referenceDistance, coreDistance = referenceDistance }) => {
            const coreDestCityId = typeof destCityId === 'string' ? Number(destCityId) : destCityId;
            const referenceLastTurn = {
                command: '천도',
                arg: { destCityID: destCityId },
                term: referenceDistance * 2,
                seq: 0,
            };
            const coreLastTurn = {
                command: '천도',
                arg: { destCityID: coreDestCityId },
                term: coreDistance * 2,
                seq: 0,
            };
            const request = buildRequest(
                'che_천도',
                { destCityID: destCityId },
                {
                    ...fixturePatches,
                    nations: {
                        ...fixturePatches?.nations,
                        1: {
                            ...fixturePatches?.nations?.[1],
                            capitalRevision: 0,
                            turnLastByOfficerLevel: { 12: referenceLastTurn },
                            coreTurnLastByOfficerLevel: { 12: coreLastTurn },
                        },
                    },
                    cities: {
                        ...fixturePatches?.cities,
                        70: {
                            nationId: 1,
                            supplyState: 1,
                            ...fixturePatches?.cities?.[70],
                        },
                    },
                }
            );
            const reference = runReferenceTurnCommandTraceRequest(
                workspaceRoot!,
                request as unknown as Record<string, unknown>
            );
            const core = await runCoreTurnCommandTrace(request, reference.before);
            const referenceNationBefore = reference.before.nations.find((entry) => entry.id === 1);
            const referenceNationAfter = reference.after.nations.find((entry) => entry.id === 1);
            const coreNationBefore = core.before.nations.find((entry) => entry.id === 1);
            const coreNationAfter = core.after.nations.find((entry) => entry.id === 1);
            const referenceGeneralBefore = reference.before.generals.find((entry) => entry.id === 1);
            const referenceGeneralAfter = reference.after.generals.find((entry) => entry.id === 1);
            const coreGeneralBefore = core.before.generals.find((entry) => entry.id === 1);
            const coreGeneralAfter = core.after.generals.find((entry) => entry.id === 1);
            const expectedExperience = completed ? 5 * (referenceDistance * 2 + 1) : 0;

            expect(reference.execution.outcome).toMatchObject({ completed });
            expect(core.execution.outcome).toMatchObject({
                requestedAction: 'che_천도',
                actionKey: completed ? 'che_천도' : '휴식',
                usedFallback: !completed,
            });
            for (const field of ['gold', 'rice']) {
                expect(
                    readNumericField(referenceNationBefore, field) - readNumericField(referenceNationAfter, field)
                ).toBe(0);
                expect(readNumericField(coreNationBefore, field) - readNumericField(coreNationAfter, field)).toBe(0);
            }
            for (const field of ['experience', 'dedication']) {
                expect(
                    readNumericField(referenceGeneralAfter, field) - readNumericField(referenceGeneralBefore, field)
                ).toBe(expectedExperience);
                expect(readNumericField(coreGeneralAfter, field) - readNumericField(coreGeneralBefore, field)).toBe(
                    expectedExperience
                );
            }
            if (completed) {
                expect(referenceNationAfter?.capitalCityId).toBe(coreDestCityId);
                expect(coreNationAfter?.capitalCityId).toBe(coreDestCityId);
            }
            expect(core.rng).toEqual(reference.rng);
            expect(
                compareTurnSnapshotDeltas(reference.before, reference.after, core.before, core.after, {
                    ignoredPathPatterns: ignoredLifecyclePaths,
                })
            ).toEqual([]);
        },
        120_000
    );
});

const expandCityCases: Array<{
    name: string;
    fixturePatches?: FixturePatches;
    completed: boolean;
}> = [
    {
        name: 'rejects a wandering nation without a capital',
        fixturePatches: { nations: { 1: { capitalCityId: 0 } } },
        completed: false,
    },
    {
        name: 'rejects a level-three capital',
        fixturePatches: { cities: { 3: { level: 3 } } },
        completed: false,
    },
    {
        name: 'allows the minimum level-four capital',
        fixturePatches: { cities: { 3: { level: 4 } } },
        completed: true,
    },
    {
        name: 'allows the maximum expandable level-seven capital',
        fixturePatches: { cities: { 3: { level: 7 } } },
        completed: true,
    },
    {
        name: 'rejects a level-eight capital',
        fixturePatches: { cities: { 3: { level: 8 } } },
        completed: false,
    },
    {
        name: 'allows the exact gold and rice requirement',
        fixturePatches: { nations: { 1: { gold: 69_000, rice: 71_000 } } },
        completed: true,
    },
    {
        name: 'rejects one less than the gold requirement',
        fixturePatches: { nations: { 1: { gold: 68_999, rice: 71_000 } } },
        completed: false,
    },
    {
        name: 'rejects one less than the rice requirement',
        fixturePatches: { nations: { 1: { gold: 69_000, rice: 70_999 } } },
        completed: false,
    },
    {
        name: 'rejects a source city occupied by another nation',
        fixturePatches: { cities: { 3: { nationId: 2 } } },
        completed: false,
    },
    {
        name: 'rejects an unsupplied source city',
        fixturePatches: { cities: { 3: { supplyState: 0 } } },
        completed: false,
    },
];

integration('nation expand city level, resource, and city constraints', () => {
    it.each(expandCityCases)(
        '$name matches legacy completion, expansion effects, RNG, and semantic delta',
        async ({ fixturePatches, completed }) => {
            const request = buildRequest('che_증축', undefined, {
                ...fixturePatches,
                nations: {
                    ...fixturePatches?.nations,
                    1: {
                        ...fixturePatches?.nations?.[1],
                        capitalRevision: 0,
                        turnLastByOfficerLevel: {
                            12: { command: '증축', arg: {}, term: 5, seq: 0 },
                        },
                    },
                },
                cities: {
                    ...fixturePatches?.cities,
                    3: {
                        level: 5,
                        populationMax: 300_000,
                        agricultureMax: 5_000,
                        commerceMax: 5_000,
                        securityMax: 5_000,
                        defenceMax: 5_000,
                        wallMax: 5_000,
                        ...fixturePatches?.cities?.[3],
                    },
                },
            });
            const reference = runReferenceTurnCommandTraceRequest(
                workspaceRoot!,
                request as unknown as Record<string, unknown>
            );
            const core = await runCoreTurnCommandTrace(request, reference.before);
            const referenceCityBefore = reference.before.cities.find((entry) => entry.id === 3);
            const referenceCityAfter = reference.after.cities.find((entry) => entry.id === 3);
            const coreCityBefore = core.before.cities.find((entry) => entry.id === 3);
            const coreCityAfter = core.after.cities.find((entry) => entry.id === 3);
            const referenceNationBefore = reference.before.nations.find((entry) => entry.id === 1);
            const referenceNationAfter = reference.after.nations.find((entry) => entry.id === 1);
            const coreNationBefore = core.before.nations.find((entry) => entry.id === 1);
            const coreNationAfter = core.after.nations.find((entry) => entry.id === 1);
            const referenceGeneralBefore = reference.before.generals.find((entry) => entry.id === 1);
            const referenceGeneralAfter = reference.after.generals.find((entry) => entry.id === 1);
            const coreGeneralBefore = core.before.generals.find((entry) => entry.id === 1);
            const coreGeneralAfter = core.after.generals.find((entry) => entry.id === 1);
            const expectedCost = completed ? 69_000 : 0;

            expect(reference.before.world.develCost).toBe(18);
            expect(reference.execution.outcome).toMatchObject({ completed });
            expect(core.execution.outcome).toMatchObject({
                requestedAction: 'che_증축',
                actionKey: completed ? 'che_증축' : '휴식',
                usedFallback: !completed,
            });
            for (const [before, after] of [
                [referenceNationBefore, referenceNationAfter],
                [coreNationBefore, coreNationAfter],
            ] as const) {
                expect(readNationResource(before, 'gold') - readNationResource(after, 'gold')).toBe(expectedCost);
                expect(readNationResource(before, 'rice') - readNationResource(after, 'rice')).toBe(expectedCost);
            }
            for (const [before, after] of [
                [referenceGeneralBefore, referenceGeneralAfter],
                [coreGeneralBefore, coreGeneralAfter],
            ] as const) {
                expect(readNumericField(after, 'experience') - readNumericField(before, 'experience')).toBe(
                    completed ? 30 : 0
                );
                expect(readNumericField(after, 'dedication') - readNumericField(before, 'dedication')).toBe(
                    completed ? 30 : 0
                );
            }
            for (const [field, delta] of [
                ['level', 1],
                ['populationMax', 100_000],
                ['agricultureMax', 2_000],
                ['commerceMax', 2_000],
                ['securityMax', 2_000],
                ['defenceMax', 2_000],
                ['wallMax', 2_000],
            ] as const) {
                const expectedDelta = completed ? delta : 0;
                expect(readNumericField(referenceCityAfter, field) - readNumericField(referenceCityBefore, field)).toBe(
                    expectedDelta
                );
                expect(readNumericField(coreCityAfter, field) - readNumericField(coreCityBefore, field)).toBe(
                    expectedDelta
                );
            }
            expect(
                readNumericField(referenceNationAfter, 'capitalRevision') -
                    readNumericField(referenceNationBefore, 'capitalRevision')
            ).toBe(completed ? 1 : 0);
            expect(
                readNumericField(coreNationAfter, 'capitalRevision') -
                    readNumericField(coreNationBefore, 'capitalRevision')
            ).toBe(completed ? 1 : 0);
            expect(core.rng).toEqual(reference.rng);
            expect(
                compareTurnSnapshotDeltas(reference.before, reference.after, core.before, core.after, {
                    ignoredPathPatterns: ignoredLifecyclePaths,
                })
            ).toEqual([]);
        },
        120_000
    );

    it('restarts at term one when capital revision changes during the stack', async () => {
        const request = buildRequest('che_증축', undefined, {
            nations: {
                1: {
                    capitalRevision: 1,
                    turnLastByOfficerLevel: {
                        12: { command: '증축', arg: {}, term: 5, seq: 0 },
                    },
                },
            },
            cities: {
                3: {
                    level: 5,
                    populationMax: 300_000,
                    agricultureMax: 5_000,
                    commerceMax: 5_000,
                    securityMax: 5_000,
                    defenceMax: 5_000,
                    wallMax: 5_000,
                },
            },
        });
        const reference = runReferenceTurnCommandTraceRequest(
            workspaceRoot!,
            request as unknown as Record<string, unknown>
        );
        const core = await runCoreTurnCommandTrace(request, reference.before);
        const coreNationAfter = core.after.nations.find((entry) => entry.id === 1);
        const coreLastTurn = readNationMeta(coreNationAfter).turn_last_12;

        expect(reference.execution.outcome).toMatchObject({
            // The ref runner's completion heuristic only sees the previous term=5
            // and reports true even though capset reset the persisted result to term 1.
            completed: true,
            lastTurn: {
                command: '증축',
                term: 1,
                seq: 1,
            },
        });
        expect(core.execution.outcome).toMatchObject({
            requestedAction: 'che_증축',
            actionKey: 'che_증축',
            usedFallback: false,
        });
        expect(coreLastTurn).toMatchObject({
            command: '증축',
            term: 1,
            seq: 1,
        });
        expect(core.rng).toEqual(reference.rng);
        expect(
            compareTurnSnapshotDeltas(reference.before, reference.after, core.before, core.after, {
                ignoredPathPatterns: ignoredLifecyclePaths,
            })
        ).toEqual([]);
    }, 120_000);
});

const reduceCityCases: Array<{
    name: string;
    fixturePatches?: FixturePatches;
    completed: boolean;
}> = [
    {
        name: 'rejects a wandering nation without a capital',
        fixturePatches: { nations: { 1: { capitalCityId: 0 } } },
        completed: false,
    },
    {
        name: 'rejects a level-four capital',
        fixturePatches: { cities: { 3: { level: 4 } } },
        completed: false,
    },
    {
        name: 'rejects a level-five capital below its original map level',
        fixturePatches: { cities: { 3: { level: 5 } } },
        completed: false,
    },
    {
        name: 'rejects the original level-eight capital',
        fixturePatches: { cities: { 3: { level: 8 } } },
        completed: false,
    },
    {
        name: 'allows the minimum reducible level-nine capital',
        fixturePatches: { cities: { 3: { level: 9 } } },
        completed: true,
    },
    {
        name: 'allows a level-ten capital',
        fixturePatches: { cities: { 3: { level: 10 } } },
        completed: true,
    },
    {
        name: 'rejects a source city occupied by another nation',
        fixturePatches: { cities: { 3: { nationId: 2 } } },
        completed: false,
    },
    {
        name: 'rejects an unsupplied source city',
        fixturePatches: { cities: { 3: { supplyState: 0 } } },
        completed: false,
    },
    {
        name: 'clamps low population and development values',
        fixturePatches: {
            cities: {
                3: {
                    population: 50_000,
                    agriculture: 1_000,
                    commerce: 1_000,
                    security: 1_000,
                    defence: 1_000,
                    wall: 1_000,
                },
            },
        },
        completed: true,
    },
];

integration('nation reduce city level, value, recovery, and city constraints', () => {
    it.each(reduceCityCases)(
        '$name matches legacy completion, reduction effects, RNG, and semantic delta',
        async ({ fixturePatches, completed }) => {
            const request = buildRequest('che_감축', undefined, {
                ...fixturePatches,
                nations: {
                    ...fixturePatches?.nations,
                    1: {
                        ...fixturePatches?.nations?.[1],
                        capitalRevision: 0,
                        turnLastByOfficerLevel: {
                            12: { command: '감축', arg: {}, term: 5, seq: 0 },
                        },
                    },
                },
                cities: {
                    ...fixturePatches?.cities,
                    3: {
                        level: 9,
                        population: 250_000,
                        populationMax: 900_000,
                        agriculture: 5_000,
                        agricultureMax: 10_000,
                        commerce: 5_000,
                        commerceMax: 10_000,
                        security: 5_000,
                        securityMax: 10_000,
                        defence: 5_000,
                        defenceMax: 10_000,
                        wall: 5_000,
                        wallMax: 10_000,
                        ...fixturePatches?.cities?.[3],
                    },
                },
            });
            const reference = runReferenceTurnCommandTraceRequest(
                workspaceRoot!,
                request as unknown as Record<string, unknown>
            );
            const core = await runCoreTurnCommandTrace(request, reference.before);
            const referenceCityBefore = reference.before.cities.find((entry) => entry.id === 3);
            const referenceCityAfter = reference.after.cities.find((entry) => entry.id === 3);
            const coreCityBefore = core.before.cities.find((entry) => entry.id === 3);
            const coreCityAfter = core.after.cities.find((entry) => entry.id === 3);
            const referenceNationBefore = reference.before.nations.find((entry) => entry.id === 1);
            const referenceNationAfter = reference.after.nations.find((entry) => entry.id === 1);
            const coreNationBefore = core.before.nations.find((entry) => entry.id === 1);
            const coreNationAfter = core.after.nations.find((entry) => entry.id === 1);
            const referenceGeneralBefore = reference.before.generals.find((entry) => entry.id === 1);
            const referenceGeneralAfter = reference.after.generals.find((entry) => entry.id === 1);
            const coreGeneralBefore = core.before.generals.find((entry) => entry.id === 1);
            const coreGeneralAfter = core.after.generals.find((entry) => entry.id === 1);
            const expectedRecovery = completed ? 39_000 : 0;

            expect(reference.before.world.develCost).toBe(18);
            expect(reference.execution.outcome).toMatchObject({ completed });
            expect(core.execution.outcome).toMatchObject({
                requestedAction: 'che_감축',
                actionKey: completed ? 'che_감축' : '휴식',
                usedFallback: !completed,
            });
            for (const [before, after] of [
                [referenceNationBefore, referenceNationAfter],
                [coreNationBefore, coreNationAfter],
            ] as const) {
                expect(readNationResource(after, 'gold') - readNationResource(before, 'gold')).toBe(expectedRecovery);
                expect(readNationResource(after, 'rice') - readNationResource(before, 'rice')).toBe(expectedRecovery);
            }
            for (const [before, after] of [
                [referenceGeneralBefore, referenceGeneralAfter],
                [coreGeneralBefore, coreGeneralAfter],
            ] as const) {
                expect(readNumericField(after, 'experience') - readNumericField(before, 'experience')).toBe(
                    completed ? 30 : 0
                );
                expect(readNumericField(after, 'dedication') - readNumericField(before, 'dedication')).toBe(
                    completed ? 30 : 0
                );
            }
            for (const [field, delta] of [
                ['level', -1],
                ['populationMax', -100_000],
                ['agricultureMax', -2_000],
                ['commerceMax', -2_000],
                ['securityMax', -2_000],
                ['defenceMax', -2_000],
                ['wallMax', -2_000],
            ] as const) {
                const expectedDelta = completed ? delta : 0;
                expect(readNumericField(referenceCityAfter, field) - readNumericField(referenceCityBefore, field)).toBe(
                    expectedDelta
                );
                expect(readNumericField(coreCityAfter, field) - readNumericField(coreCityBefore, field)).toBe(
                    expectedDelta
                );
            }
            for (const [before, after] of [
                [referenceCityBefore, referenceCityAfter],
                [coreCityBefore, coreCityAfter],
            ] as const) {
                expect(readNumericField(after, 'population')).toBe(
                    completed
                        ? Math.max(readNumericField(before, 'population') - 100_000, 30_000)
                        : readNumericField(before, 'population')
                );
                for (const field of ['agriculture', 'commerce', 'security', 'defence', 'wall'] as const) {
                    expect(readNumericField(after, field)).toBe(
                        completed
                            ? Math.max(readNumericField(before, field) - 2_000, 0)
                            : readNumericField(before, field)
                    );
                }
            }
            expect(
                readNumericField(referenceNationAfter, 'capitalRevision') -
                    readNumericField(referenceNationBefore, 'capitalRevision')
            ).toBe(completed ? 1 : 0);
            expect(
                readNumericField(coreNationAfter, 'capitalRevision') -
                    readNumericField(coreNationBefore, 'capitalRevision')
            ).toBe(completed ? 1 : 0);
            expect(core.rng).toEqual(reference.rng);
            expect(
                compareTurnSnapshotDeltas(reference.before, reference.after, core.before, core.after, {
                    ignoredPathPatterns: ignoredLifecyclePaths,
                })
            ).toEqual([]);
        },
        120_000
    );

    it('restarts at term one when capital revision changes during the stack', async () => {
        const request = buildRequest('che_감축', undefined, {
            nations: {
                1: {
                    capitalRevision: 1,
                    turnLastByOfficerLevel: {
                        12: { command: '감축', arg: {}, term: 5, seq: 0 },
                    },
                },
            },
            cities: {
                3: {
                    level: 9,
                    population: 250_000,
                    populationMax: 900_000,
                    agriculture: 5_000,
                    agricultureMax: 10_000,
                    commerce: 5_000,
                    commerceMax: 10_000,
                    security: 5_000,
                    securityMax: 10_000,
                    defence: 5_000,
                    defenceMax: 10_000,
                    wall: 5_000,
                    wallMax: 10_000,
                },
            },
        });
        const reference = runReferenceTurnCommandTraceRequest(
            workspaceRoot!,
            request as unknown as Record<string, unknown>
        );
        const core = await runCoreTurnCommandTrace(request, reference.before);
        const coreNationAfter = core.after.nations.find((entry) => entry.id === 1);
        const coreLastTurn = readNationMeta(coreNationAfter).turn_last_12;

        expect(reference.execution.outcome).toMatchObject({
            // The ref runner's completion heuristic only sees the previous term=5
            // and reports true even though capset reset the persisted result to term 1.
            completed: true,
            lastTurn: {
                command: '감축',
                term: 1,
                seq: 1,
            },
        });
        expect(core.execution.outcome).toMatchObject({
            requestedAction: 'che_감축',
            actionKey: 'che_감축',
            usedFallback: false,
        });
        expect(coreLastTurn).toMatchObject({
            command: '감축',
            term: 1,
            seq: 1,
        });
        expect(core.rng).toEqual(reference.rng);
        expect(
            compareTurnSnapshotDeltas(reference.before, reference.after, core.before, core.after, {
                ignoredPathPatterns: ignoredLifecyclePaths,
            })
        ).toEqual([]);
    }, 120_000);
});

type RandomCapitalOutcome = 'fallback' | 'incomplete' | 'completed';

const randomCapitalCases: Array<{
    name: string;
    fixturePatches?: FixturePatches;
    candidateCityIds: number[];
    flag?: number | null;
    officerLevel?: number;
    outcome: RandomCapitalOutcome;
}> = [
    {
        name: 'rejects a source city occupied by another nation',
        fixturePatches: { cities: { 3: { nationId: 2 } } },
        candidateCityIds: [70],
        outcome: 'fallback',
    },
    {
        name: 'rejects an unsupplied source city',
        fixturePatches: { cities: { 3: { supplyState: 0 } } },
        candidateCityIds: [70],
        outcome: 'fallback',
    },
    {
        name: 'rejects a non-lord actor',
        candidateCityIds: [70],
        officerLevel: 11,
        outcome: 'fallback',
    },
    {
        name: 'rejects at the opening-part year boundary',
        fixturePatches: { world: { year: 182 } },
        candidateCityIds: [70],
        outcome: 'fallback',
    },
    {
        name: 'rejects a missing remaining-use flag',
        candidateCityIds: [70],
        flag: null,
        outcome: 'fallback',
    },
    {
        name: 'rejects a zero remaining-use flag',
        candidateCityIds: [70],
        flag: 0,
        outcome: 'fallback',
    },
    {
        name: 'stays incomplete when no eligible city exists',
        candidateCityIds: [],
        outcome: 'incomplete',
    },
    {
        name: 'stays incomplete when the only neutral city is level four',
        fixturePatches: { cities: { 70: { level: 4 } } },
        candidateCityIds: [70],
        outcome: 'incomplete',
    },
    {
        name: 'stays incomplete when the only neutral city is level seven',
        fixturePatches: { cities: { 70: { level: 7 } } },
        candidateCityIds: [70],
        outcome: 'incomplete',
    },
    {
        name: 'allows a single level-five neutral city',
        fixturePatches: { cities: { 70: { level: 5 } } },
        candidateCityIds: [70],
        outcome: 'completed',
    },
    {
        name: 'allows a single level-six neutral city',
        fixturePatches: { cities: { 70: { level: 6 } } },
        candidateCityIds: [70],
        outcome: 'completed',
    },
    {
        name: 'matches legacy ordering and choice across two eligible cities',
        fixturePatches: {
            cities: {
                70: { level: 5 },
                71: {
                    nationId: 0,
                    level: 6,
                    conflict: { 2: 30 },
                    officerSet: 6,
                },
            },
        },
        candidateCityIds: [71, 70],
        outcome: 'completed',
    },
];

integration('nation random capital constraints, candidates, RNG, and city reset effects', () => {
    it.each(randomCapitalCases)(
        '$name matches legacy completion, destination, city resets, RNG, and semantic delta',
        async ({ fixturePatches, candidateCityIds, flag = 1, officerLevel = 12, outcome }) => {
            const request = buildRequest('che_무작위수도이전', undefined, {
                ...fixturePatches,
                world: {
                    year: 181,
                    ...fixturePatches?.world,
                },
                generals: {
                    ...fixturePatches?.generals,
                    1: {
                        ...fixturePatches?.generals?.[1],
                        officerLevel,
                    },
                },
                nations: {
                    ...fixturePatches?.nations,
                    1: {
                        ...fixturePatches?.nations?.[1],
                        meta: {
                            ...(flag === null ? {} : { can_무작위수도이전: flag }),
                        },
                        turnLastByOfficerLevel: {
                            [officerLevel]: {
                                command: '무작위 수도 이전',
                                arg: {},
                                term: 1,
                            },
                        },
                    },
                },
                cities: {
                    ...fixturePatches?.cities,
                    3: {
                        conflict: { 2: 10 },
                        officerSet: 7,
                        ...fixturePatches?.cities?.[3],
                    },
                    70: {
                        nationId: 0,
                        level: candidateCityIds.includes(70) ? 5 : 4,
                        conflict: { 2: 20 },
                        officerSet: 5,
                        ...fixturePatches?.cities?.[70],
                    },
                },
                randomFoundingCandidateCityIds: candidateCityIds,
            });
            const reference = runReferenceTurnCommandTraceRequest(
                workspaceRoot!,
                request as unknown as Record<string, unknown>
            );
            const core = await runCoreTurnCommandTrace(request, reference.before);
            const referenceNationBefore = reference.before.nations.find((entry) => entry.id === 1);
            const referenceNationAfter = reference.after.nations.find((entry) => entry.id === 1);
            const coreNationBefore = core.before.nations.find((entry) => entry.id === 1);
            const coreNationAfter = core.after.nations.find((entry) => entry.id === 1);
            const referenceGeneralBefore = reference.before.generals.find((entry) => entry.id === 1);
            const referenceGeneralAfter = reference.after.generals.find((entry) => entry.id === 1);
            const coreGeneralBefore = core.before.generals.find((entry) => entry.id === 1);
            const coreGeneralAfter = core.after.generals.find((entry) => entry.id === 1);
            const completed = outcome === 'completed';
            const incomplete = outcome === 'incomplete';

            expect(reference.execution.outcome).toMatchObject({
                // The ref runner infers completion from the previous term=1.
                // A no-candidate run returns false without resetting that term,
                // so its heuristic reports a false positive for incomplete cases.
                completed: outcome !== 'fallback',
            });
            expect(core.execution.outcome).toMatchObject({
                requestedAction: 'che_무작위수도이전',
                actionKey: outcome === 'fallback' ? '휴식' : 'che_무작위수도이전',
                usedFallback: outcome === 'fallback',
                ...(outcome === 'fallback' ? {} : { completed }),
            });
            expect(readNumericField(referenceNationAfter, 'capitalCityId')).toBe(
                completed ? readNumericField(coreNationAfter, 'capitalCityId') : 3
            );
            expect(readNumericField(coreNationAfter, 'capitalCityId')).toBe(
                completed ? readNumericField(referenceNationAfter, 'capitalCityId') : 3
            );
            for (const [before, after] of [
                [referenceGeneralBefore, referenceGeneralAfter],
                [coreGeneralBefore, coreGeneralAfter],
            ] as const) {
                expect(readNumericField(after, 'experience') - readNumericField(before, 'experience')).toBe(
                    completed ? 10 : 0
                );
                expect(readNumericField(after, 'dedication') - readNumericField(before, 'dedication')).toBe(
                    completed ? 10 : 0
                );
            }

            if (completed) {
                const destCityId = readNumericField(referenceNationAfter, 'capitalCityId');
                expect(candidateCityIds).toContain(destCityId);
                for (const [beforeSnapshot, afterSnapshot] of [
                    [reference.before, reference.after],
                    [core.before, core.after],
                ] as const) {
                    const oldCity = afterSnapshot.cities.find((entry) => entry.id === 3);
                    const destCity = afterSnapshot.cities.find((entry) => entry.id === destCityId);
                    const actor = afterSnapshot.generals.find((entry) => entry.id === 1);
                    const compatriot = afterSnapshot.generals.find((entry) => entry.id === 3);
                    const foreignGeneralBefore = beforeSnapshot.generals.find((entry) => entry.id === 2);
                    const foreignGeneralAfter = afterSnapshot.generals.find((entry) => entry.id === 2);

                    expect(oldCity).toMatchObject({
                        nationId: 0,
                        frontState: 0,
                        conflict: {},
                        officerSet: 0,
                    });
                    expect(destCity).toMatchObject({
                        nationId: 1,
                        conflict: {},
                    });
                    expect(readNumericField(actor, 'cityId')).toBe(destCityId);
                    expect(readNumericField(compatriot, 'cityId')).toBe(destCityId);
                    expect(readNumericField(foreignGeneralAfter, 'cityId')).toBe(
                        readNumericField(foreignGeneralBefore, 'cityId')
                    );
                }
                expect(readNumericField(readNationMeta(referenceNationAfter), 'can_무작위수도이전')).toBe(0);
                expect(readNumericField(readNationMeta(coreNationAfter), 'can_무작위수도이전')).toBe(0);
                expect(reference.rng).toHaveLength(1);
                expect(reference.rng[0]).toMatchObject({
                    operation: 'nextInt',
                    arguments: { maxInclusive: candidateCityIds.length - 1 },
                });
            } else {
                expect(reference.rng).toEqual([]);
                expect(readNationMeta(referenceNationAfter).can_무작위수도이전).toBe(
                    readNationMeta(referenceNationBefore).can_무작위수도이전
                );
                expect(readNationMeta(coreNationAfter).can_무작위수도이전).toBe(
                    readNationMeta(coreNationBefore).can_무작위수도이전
                );
            }
            if (incomplete) {
                expect(reference.execution.outcome).toMatchObject({
                    completed: true,
                    lastTurn: {
                        command: '무작위 수도 이전',
                        term: 1,
                    },
                });
                expect(readNationMeta(coreNationAfter).turn_last_12).toMatchObject({
                    command: '무작위 수도 이전',
                    term: 1,
                });
                expect(readNumericField(readGeneralMeta(coreGeneralAfter), 'inherit_active_action')).toBe(
                    readNumericField(readGeneralMeta(coreGeneralBefore), 'inherit_active_action')
                );
                const noCandidateText = '이동할 수 있는 도시가 없습니다.';
                expect(reference.after.logs.slice(reference.before.logs.length).map((entry) => entry.text)).toEqual(
                    expect.arrayContaining([expect.stringContaining(noCandidateText)])
                );
                expect(core.after.logs.map((entry) => entry.text)).toEqual(
                    expect.arrayContaining([expect.stringContaining(noCandidateText)])
                );
            }
            expect(core.rng).toEqual(reference.rng);
            expect(
                compareTurnSnapshotDeltas(reference.before, reference.after, core.before, core.after, {
                    ignoredPathPatterns: ignoredLifecyclePaths,
                })
            ).toEqual([]);
        },
        120_000
    );
});

type ResearchBoundaryOutcome = 'fallback' | 'intermediate' | 'completed';

const researchBoundaryCases: Array<{
    name: string;
    action: 'event_화시병연구' | 'event_원융노병연구';
    term: number;
    gold?: number;
    rice?: number;
    auxValue?: unknown;
    setAuxValue?: boolean;
    fixturePatches?: FixturePatches;
    outcome: ResearchBoundaryOutcome;
}> = [
    {
        name: 'keeps the short research at its last intermediate turn',
        action: 'event_화시병연구',
        term: 10,
        outcome: 'intermediate',
    },
    {
        name: 'keeps the long research at its last intermediate turn',
        action: 'event_원융노병연구',
        term: 22,
        outcome: 'intermediate',
    },
    {
        name: 'allows the exact short-research reserves without supply',
        action: 'event_화시병연구',
        term: 11,
        fixturePatches: { cities: { 3: { supplyState: 0 } } },
        outcome: 'completed',
    },
    {
        name: 'allows the exact long-research reserves',
        action: 'event_원융노병연구',
        term: 23,
        outcome: 'completed',
    },
    {
        name: 'rejects one less than the short gold reserve',
        action: 'event_화시병연구',
        term: 11,
        gold: 49_999,
        outcome: 'fallback',
    },
    {
        name: 'rejects one less than the short rice reserve',
        action: 'event_화시병연구',
        term: 11,
        rice: 51_999,
        outcome: 'fallback',
    },
    {
        name: 'rejects one less than the long gold reserve',
        action: 'event_원융노병연구',
        term: 23,
        gold: 99_999,
        outcome: 'fallback',
    },
    {
        name: 'rejects one less than the long rice reserve',
        action: 'event_원융노병연구',
        term: 23,
        rice: 101_999,
        outcome: 'fallback',
    },
    {
        name: 'rejects a numeric completed flag',
        action: 'event_화시병연구',
        term: 11,
        auxValue: 1,
        setAuxValue: true,
        outcome: 'fallback',
    },
    {
        name: 'rejects a numeric-string completed flag',
        action: 'event_화시병연구',
        term: 11,
        auxValue: '1',
        setAuxValue: true,
        outcome: 'fallback',
    },
    {
        name: 'rejects a boolean completed flag',
        action: 'event_원융노병연구',
        term: 23,
        auxValue: true,
        setAuxValue: true,
        outcome: 'fallback',
    },
    {
        name: 'rejects an array-shaped completed flag',
        action: 'event_원융노병연구',
        term: 23,
        auxValue: [],
        setAuxValue: true,
        outcome: 'fallback',
    },
    {
        name: 'accepts a numeric-string incomplete flag',
        action: 'event_원융노병연구',
        term: 23,
        auxValue: '0',
        setAuxValue: true,
        outcome: 'completed',
    },
];

integration('nation event research turn, reserve, and duplicate-state boundaries', () => {
    it.each(researchBoundaryCases)(
        '$name matches legacy completion, resources, flags, logs, RNG, and semantic delta',
        async ({ action, term, gold, rice, auxValue, setAuxValue = false, fixturePatches, outcome }) => {
            const config = researchConfigs[action]!;
            const requiredGold = config.cost;
            const requiredRice = config.cost + 2_000;
            const request = buildRequest(action, undefined, {
                ...fixturePatches,
                nations: {
                    ...fixturePatches?.nations,
                    1: {
                        ...fixturePatches?.nations?.[1],
                        gold: gold ?? requiredGold,
                        rice: rice ?? requiredRice,
                        meta: {
                            ...(setAuxValue ? { [config.auxKey]: auxValue } : {}),
                        },
                        turnLastByOfficerLevel: {
                            12: {
                                command: config.command,
                                term,
                            },
                        },
                    },
                },
            });
            const reference = runReferenceTurnCommandTraceRequest(
                workspaceRoot!,
                request as unknown as Record<string, unknown>
            );
            const core = await runCoreTurnCommandTrace(request, reference.before);
            const completed = outcome === 'completed';
            const intermediate = outcome === 'intermediate';

            expect(reference.execution.outcome).toMatchObject({ completed });
            expect(core.execution.outcome).toMatchObject({
                requestedAction: action,
                actionKey: outcome === 'fallback' ? '휴식' : action,
                usedFallback: outcome === 'fallback',
                ...(outcome === 'fallback' ? {} : { completed }),
            });

            for (const snapshot of [reference, core]) {
                const nationBefore = snapshot.before.nations.find((entry) => entry.id === 1);
                const nationAfter = snapshot.after.nations.find((entry) => entry.id === 1);
                const generalBefore = snapshot.before.generals.find((entry) => entry.id === 1);
                const generalAfter = snapshot.after.generals.find((entry) => entry.id === 1);
                const expectedCost = completed ? config.cost : 0;
                const expectedProgress = completed ? 5 * (config.preReqTurn + 1) : 0;

                expect(readNationResource(nationBefore, 'gold') - readNationResource(nationAfter, 'gold')).toBe(
                    expectedCost
                );
                expect(readNationResource(nationBefore, 'rice') - readNationResource(nationAfter, 'rice')).toBe(
                    expectedCost
                );
                expect(
                    readNumericField(generalAfter, 'experience') - readNumericField(generalBefore, 'experience')
                ).toBe(expectedProgress);
                expect(
                    readNumericField(generalAfter, 'dedication') - readNumericField(generalBefore, 'dedication')
                ).toBe(expectedProgress);

                if (completed) {
                    expect(readNumericField(readNationMeta(nationAfter), config.auxKey)).toBe(1);
                    expect(readNationResource(nationAfter, 'gold')).toBe(0);
                    expect(readNationResource(nationAfter, 'rice')).toBe(2_000);
                    expect(snapshot.after.logs.map((entry) => entry.text)).toEqual(
                        expect.arrayContaining([expect.stringContaining(`<M>${config.command}</> 완료`)])
                    );
                } else {
                    expect(readNationMeta(nationAfter)[config.auxKey]).toEqual(
                        readNationMeta(nationBefore)[config.auxKey]
                    );
                }
            }

            if (intermediate) {
                expect(reference.execution.outcome).toMatchObject({
                    lastTurn: {
                        command: config.command,
                        term: config.preReqTurn,
                    },
                });
                expect(readNationMeta(core.after.nations.find((entry) => entry.id === 1)).turn_last_12).toMatchObject({
                    command: config.command,
                    term: config.preReqTurn,
                });
            }
            expect(reference.rng).toEqual([]);
            expect(core.rng).toEqual(reference.rng);
            expect(
                compareTurnSnapshotDeltas(reference.before, reference.after, core.before, core.after, {
                    ignoredPathPatterns: ignoredLifecyclePaths,
                })
            ).toEqual([]);
        },
        120_000
    );
});

const mobilizePeopleBoundaryCases: Array<{
    name: string;
    destCityId: unknown;
    fixturePatches?: FixturePatches;
    completed?: boolean;
    coreResolution?: boolean;
    expectedDefence?: number;
    expectedWall?: number;
    expectedStrategicCommandLimit?: number;
    expectedPostReqTurn?: number;
}> = [
    {
        name: 'rejects a missing destination city',
        destCityId: 9999,
    },
    {
        name: 'accepts a numeric string destination city ID',
        destCityId: '70',
        completed: true,
        expectedPostReqTurn: 63,
    },
    {
        name: 'rejects a source city occupied by another nation',
        destCityId: 70,
        fixturePatches: { cities: { 3: { nationId: 2 } } },
    },
    {
        name: 'rejects a destination city occupied by another nation',
        destCityId: 70,
        fixturePatches: { cities: { 70: { nationId: 2 } } },
    },
    {
        name: 'rejects an actor below chief rank',
        destCityId: 70,
        fixturePatches: { generals: { 1: { officerLevel: 4, officerCityId: 0 } } },
        coreResolution: false,
    },
    {
        name: 'rejects a remaining strategic-command delay',
        destCityId: 70,
        fixturePatches: { nations: { 1: { strategicCommandLimit: 1 } } },
    },
    {
        name: 'allows an unsupplied source city',
        destCityId: 70,
        fixturePatches: { cities: { 3: { supplyState: 0 } } },
        completed: true,
        expectedPostReqTurn: 63,
    },
    {
        name: 'allows an unsupplied destination city',
        destCityId: 70,
        fixturePatches: { cities: { 70: { supplyState: 0 } } },
        completed: true,
        expectedPostReqTurn: 63,
    },
    {
        name: 'allows the actor city as destination',
        destCityId: 3,
        completed: true,
        expectedPostReqTurn: 63,
    },
    {
        name: 'rounds the 80-percent defence and wall floors like MariaDB',
        destCityId: 70,
        fixturePatches: {
            cities: {
                70: {
                    defence: 1_000,
                    defenceMax: 5_001,
                    wall: 1_000,
                    wallMax: 5_001,
                },
            },
        },
        completed: true,
        expectedDefence: 4_001,
        expectedWall: 4_001,
        expectedPostReqTurn: 63,
    },
    {
        name: 'preserves defence and wall already above their 80-percent floors',
        destCityId: 70,
        fixturePatches: {
            cities: {
                70: {
                    defence: 4_500,
                    defenceMax: 5_000,
                    wall: 4_600,
                    wallMax: 5_000,
                },
            },
        },
        completed: true,
        expectedDefence: 4_500,
        expectedWall: 4_600,
        expectedPostReqTurn: 63,
    },
    {
        name: 'applies the strategist global-delay modifier',
        destCityId: 70,
        fixturePatches: { nations: { 1: { typeCode: 'che_종횡가' } } },
        completed: true,
        expectedStrategicCommandLimit: 5,
        expectedPostReqTurn: 47,
    },
    {
        name: 'uses the actual eleven-general count for the nation cooldown',
        destCityId: 70,
        fixturePatches: {
            nations: { 1: { generalCount: 11 } },
            generals: {
                4: { nationId: 1 },
                5: { nationId: 1 },
                6: { nationId: 1 },
                7: { nationId: 1 },
                8: { nationId: 1 },
                9: { nationId: 1 },
                10: { nationId: 1 },
                11: { nationId: 1 },
                12: { nationId: 1 },
            },
        },
        completed: true,
        expectedPostReqTurn: 66,
    },
];

integration('nation mobilize-people target, delay, and city-effect boundaries', () => {
    it.each(mobilizePeopleBoundaryCases)(
        '$name matches legacy fallback, cooldown, effects, logs, RNG, and semantic delta',
        async ({
            destCityId,
            fixturePatches,
            completed = false,
            coreResolution = true,
            expectedDefence,
            expectedWall,
            expectedStrategicCommandLimit = 9,
            expectedPostReqTurn,
        }) => {
            const request = buildRequest(
                'che_백성동원',
                { destCityID: destCityId },
                {
                    ...fixturePatches,
                    cities: {
                        ...fixturePatches?.cities,
                        70: {
                            nationId: 1,
                            ...fixturePatches?.cities?.[70],
                        },
                    },
                }
            );
            const reference = runReferenceTurnCommandTraceRequest(
                workspaceRoot!,
                request as unknown as Record<string, unknown>
            );
            const core = await runCoreTurnCommandTrace(request, reference.before);
            const targetCityId = destCityId === 3 ? 3 : 70;

            expect(reference.execution.outcome).toMatchObject({ completed });
            if (coreResolution) {
                expect(core.execution.outcome).toMatchObject({
                    requestedAction: 'che_백성동원',
                    actionKey: completed ? 'che_백성동원' : '휴식',
                    usedFallback: !completed,
                });
            } else {
                expect(core.execution.outcome).toBeUndefined();
            }

            for (const snapshot of [reference, core]) {
                const nationBefore = snapshot.before.nations.find((entry) => entry.id === 1);
                const nationAfter = snapshot.after.nations.find((entry) => entry.id === 1);
                const generalBefore = snapshot.before.generals.find((entry) => entry.id === 1);
                const generalAfter = snapshot.after.generals.find((entry) => entry.id === 1);
                const cityBefore = snapshot.before.cities.find((entry) => entry.id === targetCityId);
                const cityAfter = snapshot.after.cities.find((entry) => entry.id === targetCityId);

                expect(readNationResource(nationBefore, 'gold') - readNationResource(nationAfter, 'gold')).toBe(0);
                expect(readNationResource(nationBefore, 'rice') - readNationResource(nationAfter, 'rice')).toBe(0);
                expect(
                    readNumericField(generalAfter, 'experience') - readNumericField(generalBefore, 'experience')
                ).toBe(completed ? 5 : 0);
                expect(
                    readNumericField(generalAfter, 'dedication') - readNumericField(generalBefore, 'dedication')
                ).toBe(completed ? 5 : 0);

                if (completed) {
                    expect(readNumericField(nationAfter, 'strategicCommandLimit')).toBe(expectedStrategicCommandLimit);
                    if (expectedDefence !== undefined) {
                        expect(readNumericField(cityAfter, 'defence')).toBe(expectedDefence);
                    }
                    if (expectedWall !== undefined) {
                        expect(readNumericField(cityAfter, 'wall')).toBe(expectedWall);
                    }
                    const addedLogs = snapshot.after.logs.slice(snapshot.before.logs.length);
                    expect(addedLogs.map((entry) => entry.text)).toEqual(
                        expect.arrayContaining([expect.stringContaining('백성동원 발동')])
                    );
                    const broadcastFragment = '<M>백성동원</>을 하였습니다.';
                    expect(
                        addedLogs.some(
                            (entry) => entry.generalId === 3 && String(entry.text).includes(broadcastFragment)
                        )
                    ).toBe(true);
                    expect(
                        addedLogs.some(
                            (entry) => entry.generalId === 2 && String(entry.text).includes(broadcastFragment)
                        )
                    ).toBe(false);
                    expect(addedLogs.some((entry) => String(entry.text).includes('에 <M>백성동원</>을 발동'))).toBe(
                        true
                    );
                } else {
                    expect(readNumericField(nationAfter, 'strategicCommandLimit')).toBe(
                        readNumericField(nationBefore, 'strategicCommandLimit')
                    );
                    expect(readNumericField(cityAfter, 'defence')).toBe(readNumericField(cityBefore, 'defence'));
                    expect(readNumericField(cityAfter, 'wall')).toBe(readNumericField(cityBefore, 'wall'));
                }
            }

            if (completed) {
                const expectedNextAvailableTurn = 190 * 12 + expectedPostReqTurn!;
                if (expectedPostReqTurn === 66) {
                    expect(reference.before.generals.filter((entry) => entry.nationId === 1)).toHaveLength(11);
                    expect(core.before.generals.filter((entry) => entry.nationId === 1)).toHaveLength(11);
                }
                expect(reference.after.world.nationCooldowns).toEqual([
                    {
                        nationId: 1,
                        actionName: '백성동원',
                        nextAvailableTurn: expectedNextAvailableTurn,
                    },
                ]);
                expect(core.after.world.nationCooldowns).toEqual(reference.after.world.nationCooldowns);
            }
            expect(reference.rng).toEqual([]);
            expect(core.rng).toEqual(reference.rng);
            expect(
                compareTurnSnapshotDeltas(reference.before, reference.after, core.before, core.after, {
                    ignoredPathPatterns: ignoredLifecyclePaths,
                })
            ).toEqual([]);
        },
        120_000
    );
});

const degradeRelationsBoundaryCases: Array<{
    name: string;
    destNationId: unknown;
    fixturePatches?: FixturePatches;
    completed?: boolean;
    coreResolution?: boolean;
    expectedForwardTerm?: number;
    expectedReverseTerm?: number;
    expectedSourceFront?: number;
    expectedDestFront?: number;
    expectedStrategicCommandLimit?: number;
    expectedPostReqTurn?: number;
}> = [
    {
        name: 'rejects a missing destination nation',
        destNationId: 99,
    },
    {
        name: 'rejects the source nation as destination',
        destNationId: 1,
    },
    {
        name: 'rejects a numeric string destination nation ID',
        destNationId: '2',
    },
    {
        name: 'rejects a fractional destination nation ID',
        destNationId: 2.9,
    },
    {
        name: 'rejects a source city occupied by another nation',
        destNationId: 2,
        fixturePatches: {
            cities: { 3: { nationId: 2 } },
            diplomacy: { '1:2': { state: 1, term: 12 } },
        },
    },
    {
        name: 'rejects an actor below chief rank',
        destNationId: 2,
        fixturePatches: {
            generals: { 1: { officerLevel: 4, officerCityId: 0 } },
            diplomacy: { '1:2': { state: 1, term: 12 } },
        },
        coreResolution: false,
    },
    {
        name: 'rejects a remaining strategic-command delay',
        destNationId: 2,
        fixturePatches: {
            nations: { 1: { strategicCommandLimit: 1 } },
            diplomacy: { '1:2': { state: 1, term: 12 } },
        },
    },
    {
        name: 'allows an unsupplied source city',
        destNationId: 2,
        fixturePatches: {
            cities: { 3: { supplyState: 0 } },
            diplomacy: {
                '1:2': { state: 1, term: 12 },
                '2:1': { state: 1, term: 12 },
            },
        },
        completed: true,
        expectedForwardTerm: 15,
        expectedReverseTerm: 15,
        expectedSourceFront: 2,
        expectedDestFront: 2,
        expectedPostReqTurn: 126,
    },
    {
        name: 'resets both war terms to three and refreshes both fronts',
        destNationId: 2,
        fixturePatches: {
            diplomacy: {
                '1:2': { state: 0, term: 12 },
                '2:1': { state: 0, term: 8 },
            },
        },
        completed: true,
        expectedForwardTerm: 3,
        expectedReverseTerm: 3,
        expectedSourceFront: 1,
        expectedDestFront: 1,
        expectedPostReqTurn: 126,
    },
    {
        name: 'keeps declaration fronts at the exact five-term boundary',
        destNationId: 2,
        fixturePatches: {
            diplomacy: {
                '1:2': { state: 1, term: 2 },
                '2:1': { state: 1, term: 2 },
            },
        },
        completed: true,
        expectedForwardTerm: 5,
        expectedReverseTerm: 5,
        expectedSourceFront: 1,
        expectedDestFront: 1,
        expectedPostReqTurn: 126,
    },
    {
        name: 'updates a disallowed reverse state independently',
        destNationId: 2,
        fixturePatches: {
            diplomacy: {
                '1:2': { state: 1, term: 4 },
                '2:1': { state: 2, term: 9 },
            },
        },
        completed: true,
        expectedForwardTerm: 7,
        expectedReverseTerm: 12,
        expectedSourceFront: 2,
        expectedDestFront: 2,
        expectedPostReqTurn: 126,
    },
    {
        name: 'applies the strategist command and global-delay modifiers',
        destNationId: 2,
        fixturePatches: {
            nations: { 1: { typeCode: 'che_종횡가' } },
            diplomacy: {
                '1:2': { state: 1, term: 12 },
                '2:1': { state: 1, term: 12 },
            },
        },
        completed: true,
        expectedForwardTerm: 15,
        expectedReverseTerm: 15,
        expectedSourceFront: 2,
        expectedDestFront: 2,
        expectedStrategicCommandLimit: 5,
        expectedPostReqTurn: 95,
    },
    {
        name: 'uses the actual eleven-general count for the nation cooldown',
        destNationId: 2,
        fixturePatches: {
            nations: { 1: { generalCount: 11 } },
            generals: {
                4: { nationId: 1 },
                5: { nationId: 1 },
                6: { nationId: 1 },
                7: { nationId: 1 },
                8: { nationId: 1 },
                9: { nationId: 1 },
                10: { nationId: 1 },
                11: { nationId: 1 },
                12: { nationId: 1 },
            },
            diplomacy: {
                '1:2': { state: 1, term: 12 },
                '2:1': { state: 1, term: 12 },
            },
        },
        completed: true,
        expectedForwardTerm: 15,
        expectedReverseTerm: 15,
        expectedSourceFront: 2,
        expectedDestFront: 2,
        expectedPostReqTurn: 133,
    },
];

integration('nation degrade-relations target, diplomacy, front, and cooldown boundaries', () => {
    it.each(degradeRelationsBoundaryCases)(
        '$name matches legacy fallback, diplomacy, fronts, cooldown, logs, RNG, and semantic delta',
        async ({
            destNationId,
            fixturePatches,
            completed = false,
            coreResolution = true,
            expectedForwardTerm,
            expectedReverseTerm,
            expectedSourceFront,
            expectedDestFront,
            expectedStrategicCommandLimit = 9,
            expectedPostReqTurn,
        }) => {
            const request = buildRequest('che_이호경식', { destNationID: destNationId }, fixturePatches);
            const reference = runReferenceTurnCommandTraceRequest(
                workspaceRoot!,
                request as unknown as Record<string, unknown>
            );
            const core = await runCoreTurnCommandTrace(request, reference.before);

            expect(reference.execution.outcome).toMatchObject({ completed });
            if (coreResolution) {
                expect(core.execution.outcome).toMatchObject({
                    requestedAction: 'che_이호경식',
                    actionKey: completed ? 'che_이호경식' : '휴식',
                    usedFallback: !completed,
                });
            } else {
                expect(core.execution.outcome).toBeUndefined();
            }

            for (const snapshot of [reference, core]) {
                const nationBefore = snapshot.before.nations.find((entry) => entry.id === 1);
                const nationAfter = snapshot.after.nations.find((entry) => entry.id === 1);
                const generalBefore = snapshot.before.generals.find((entry) => entry.id === 1);
                const generalAfter = snapshot.after.generals.find((entry) => entry.id === 1);
                const sourceCityBefore = snapshot.before.cities.find((entry) => entry.id === 3);
                const sourceCityAfter = snapshot.after.cities.find((entry) => entry.id === 3);
                const destCityBefore = snapshot.before.cities.find((entry) => entry.id === 70);
                const destCityAfter = snapshot.after.cities.find((entry) => entry.id === 70);
                const forwardBefore = snapshot.before.diplomacy.find(
                    (entry) => entry.fromNationId === 1 && entry.toNationId === 2
                );
                const forwardAfter = snapshot.after.diplomacy.find(
                    (entry) => entry.fromNationId === 1 && entry.toNationId === 2
                );
                const reverseBefore = snapshot.before.diplomacy.find(
                    (entry) => entry.fromNationId === 2 && entry.toNationId === 1
                );
                const reverseAfter = snapshot.after.diplomacy.find(
                    (entry) => entry.fromNationId === 2 && entry.toNationId === 1
                );

                expect(readNationResource(nationBefore, 'gold') - readNationResource(nationAfter, 'gold')).toBe(0);
                expect(readNationResource(nationBefore, 'rice') - readNationResource(nationAfter, 'rice')).toBe(0);
                expect(
                    readNumericField(generalAfter, 'experience') - readNumericField(generalBefore, 'experience')
                ).toBe(completed ? 5 : 0);
                expect(
                    readNumericField(generalAfter, 'dedication') - readNumericField(generalBefore, 'dedication')
                ).toBe(completed ? 5 : 0);

                if (completed) {
                    expect(readNumericField(nationAfter, 'strategicCommandLimit')).toBe(expectedStrategicCommandLimit);
                    expect(readNumericField(forwardAfter, 'state')).toBe(1);
                    expect(readNumericField(reverseAfter, 'state')).toBe(1);
                    expect(readNumericField(forwardAfter, 'term')).toBe(expectedForwardTerm);
                    expect(readNumericField(reverseAfter, 'term')).toBe(expectedReverseTerm);
                    expect(readNumericField(sourceCityAfter, 'frontState')).toBe(expectedSourceFront);
                    expect(readNumericField(destCityAfter, 'frontState')).toBe(expectedDestFront);

                    const addedLogs = snapshot.after.logs.slice(snapshot.before.logs.length);
                    expect(addedLogs.map((entry) => entry.text)).toEqual(
                        expect.arrayContaining([expect.stringContaining('이호경식 발동')])
                    );
                    expect(
                        addedLogs.some((entry) => entry.generalId === 3 && String(entry.text).includes('이호경식'))
                    ).toBe(true);
                    expect(
                        addedLogs.some(
                            (entry) =>
                                entry.generalId === 2 &&
                                String(entry.text).includes('아국에 <M>이호경식</>을 발동하였습니다.')
                        )
                    ).toBe(true);
                } else {
                    expect(readNumericField(nationAfter, 'strategicCommandLimit')).toBe(
                        readNumericField(nationBefore, 'strategicCommandLimit')
                    );
                    expect(forwardAfter).toEqual(forwardBefore);
                    expect(reverseAfter).toEqual(reverseBefore);
                    expect(readNumericField(sourceCityAfter, 'frontState')).toBe(
                        readNumericField(sourceCityBefore, 'frontState')
                    );
                    expect(readNumericField(destCityAfter, 'frontState')).toBe(
                        readNumericField(destCityBefore, 'frontState')
                    );
                }
            }

            if (completed) {
                const expectedNextAvailableTurn = 190 * 12 + expectedPostReqTurn!;
                expect(reference.after.world.nationCooldowns).toEqual([
                    {
                        nationId: 1,
                        actionName: '이호경식',
                        nextAvailableTurn: expectedNextAvailableTurn,
                    },
                ]);
                expect(core.after.world.nationCooldowns).toEqual(reference.after.world.nationCooldowns);
            }
            expect(reference.rng).toEqual([]);
            expect(core.rng).toEqual(reference.rng);
            expect(
                compareTurnSnapshotDeltas(reference.before, reference.after, core.before, core.after, {
                    ignoredPathPatterns: ignoredLifecyclePaths,
                })
            ).toEqual([]);
        },
        120_000
    );
});
