'use strict';

const assert = require('node:assert/strict');
const test = require('node:test');

const { canonicalCatalogDigest } = require('../../src/services/legacy-detached-trophy-preflight-service');
const {
  CONSENT,
  canonicalTrophyDigest,
  confirmationPhrase,
  createInactiveLegacyTrophyUnlockService,
} = require('../../src/services/inactive-legacy-trophy-unlock-service');

const game = {
  title: 'Inactive fixture game',
  trophies: [
    { id: 0, grade: 'bronze', name: 'Locked', description: 'Target', hidden: false, earned: false },
    { id: 1, grade: 'silver', name: 'Earned', description: 'Existing', hidden: false, earned: true },
  ],
};
const catalogSha256 = canonicalCatalogDigest(game);
const trophySha256 = canonicalTrophyDigest(catalogSha256, game.trophies[0]);
const backupSha256 = 'b'.repeat(64);

function dependencies(overrides = {}) {
  const calls = [];
  return {
    calls,
    values: {
      installedCatalog: async () => ({ games: [game] }),
      mutationStatus: async () => ({ available: true }),
      detachedPreflight: async (input) => {
        calls.push(['preflight', input]);
        return { ready: true, cleanupComplete: true, targetInactive: true };
      },
      backup: async (input) => {
        calls.push(['backup', input]);
        return { complete: true, sha256: backupSha256 };
      },
      dryRun: async (input) => {
        calls.push(['dry-run', input]);
        return { ready: true, writes: 0, unlockCalls: 0 };
      },
      unlockAdapter: async (input) => {
        calls.push(['unlock', input]);
        return {
          status: 'unlocked',
          catalogSha256,
          trophySha256,
          targetInactive: true,
          unlockCalls: 1,
          psnRequests: 0,
          contextDestroyed: true,
          handleDestroyed: true,
          filesPersisted: 0,
        };
      },
      postScan: async (input) => {
        calls.push(['post-scan', input]);
        return { selectedUnlocked: true, changedTrophies: 1, otherChanges: 0 };
      },
      rollback: async (input) => {
        calls.push(['rollback', input]);
        return { verified: true };
      },
      audit: async (input) => calls.push(['audit', input]),
      ...overrides,
    },
  };
}

function input() {
  return {
    catalogSha256,
    trophySha256,
    confirmation: confirmationPhrase(catalogSha256, trophySha256),
  };
}

test('inactive unlock is unavailable until a native mutation adapter is proven', async () => {
  const service = createInactiveLegacyTrophyUnlockService({
    installedCatalog: async () => ({ games: [game] }),
  });
  assert.deepEqual(await service.status(), {
    available: false,
    exactOne: true,
    inactiveOnly: true,
    backupRequired: true,
    dryRunRequired: true,
    rollbackRequired: true,
    reasonCode: 'NATIVE_MUTATION_ADAPTER_UNAVAILABLE',
  });
  await assert.rejects(service.unlockOne(input()), /unavailable/i);
});

test('inactive unlock resolves an opaque exact-one selection and verifies the full recovery flow', async () => {
  const fixture = dependencies();
  const service = createInactiveLegacyTrophyUnlockService(fixture.values);
  const result = await service.unlockOne(input());

  assert.equal(result.status, 'unlocked');
  assert.equal(result.postScanVerified, true);
  assert.equal(result.backupSha256, backupSha256);
  assert.deepEqual(fixture.calls.map(([name]) => name), [
    'preflight', 'backup', 'dry-run', 'unlock', 'post-scan', 'audit',
  ]);
  const adapterInput = fixture.calls.find(([name]) => name === 'unlock')[1];
  assert.equal(adapterInput.consent, CONSENT);
  assert.equal(adapterInput.trophyId, 0);
  assert.equal(Object.hasOwn(adapterInput, 'titleId'), false);
  assert.equal(Object.hasOwn(adapterInput, 'npCommunicationId'), false);
});

test('inactive unlock rejects free ids, stale digests, earned trophies and wrong confirmation', async () => {
  const fixture = dependencies();
  const service = createInactiveLegacyTrophyUnlockService(fixture.values);
  await assert.rejects(service.unlockOne({ ...input(), trophyId: 99 }), /forbidden input field/i);
  await assert.rejects(service.unlockOne({ ...input(), trophySha256: '0'.repeat(64) }), /stale or ambiguous/i);
  await assert.rejects(service.unlockOne({ ...input(), confirmation: 'yes' }), /exact inactive trophy confirmation/i);

  const earnedSha256 = canonicalTrophyDigest(catalogSha256, game.trophies[1]);
  await assert.rejects(service.unlockOne({
    catalogSha256,
    trophySha256: earnedSha256,
    confirmation: confirmationPhrase(catalogSha256, earnedSha256),
  }), /already unlocked/i);
  assert.equal(fixture.calls.length, 0);
});

test('inactive unlock rolls back when exact-one post-scan proof fails', async () => {
  const fixture = dependencies({
    postScan: async () => ({ selectedUnlocked: true, changedTrophies: 2, otherChanges: 1 }),
  });
  const service = createInactiveLegacyTrophyUnlockService(fixture.values);
  await assert.rejects(service.unlockOne(input()), /exact-one trophy mutation/i);
  assert.equal(fixture.calls.some(([name]) => name === 'rollback'), true);
  const audit = fixture.calls.find(([name]) => name === 'audit')[1];
  assert.equal(audit.outcome, 'rolled-back');
});

test('inactive unlock rejects an unverifiable backup or side-effecting dry-run before mutation', async () => {
  const noBackup = dependencies({ backup: async () => ({ complete: false }) });
  await assert.rejects(
    createInactiveLegacyTrophyUnlockService(noBackup.values).unlockOne(input()),
    /verified trophy backup/i,
  );

  const dirtyDryRun = dependencies({ dryRun: async () => ({ ready: true, writes: 1, unlockCalls: 0 }) });
  await assert.rejects(
    createInactiveLegacyTrophyUnlockService(dirtyDryRun.values).unlockOne(input()),
    /dry-run did not pass/i,
  );
  assert.equal(dirtyDryRun.calls.some(([name]) => name === 'unlock'), false);
});