import { createServer } from 'vite';

const expectedOpeningPageIds = ['yellow-turban-chaos', 'liu-bei-resolve'];
const expectedBrotherhoodPageIds = ['militia-rises'];
const expectedDeparturePageIds = ['first-sortie', 'battle-briefing'];
const expectedRequiredObjectiveIds = [
  'meet-zhang-fei',
  'meet-guan-yu',
  'register-volunteers'
];
const expectedCampaignMarkerIds = [
  'prologue-village-entered',
  'prologue-village-meet-zhang-fei',
  'prologue-village-meet-guan-yu',
  'prologue-village-register-volunteers',
  // Kept so existing saves made before the narrative rewrite still normalize.
  'prologue-village-check-supplies',
  'prologue-village-complete'
];
const expectedCampObjectiveIds = [
  'review-scout-report',
  'ready-vanguard',
  'inspect-arms'
];
const expectedCampMarkerIds = [
  'prologue-camp-entered',
  'prologue-camp-review-scout-report',
  'prologue-camp-ready-vanguard',
  'prologue-camp-inspect-arms',
  'prologue-camp-complete'
];

const server = await createServer({
  logLevel: 'error',
  server: { middlewareMode: true },
  appType: 'custom'
});

try {
  const village = await server.ssrLoadModule('/src/game/data/prologueVillage.ts');
  const militiaCamp = await server.ssrLoadModule('/src/game/data/prologueMilitiaCamp.ts');
  const campaign = await server.ssrLoadModule('/src/game/state/campaignState.ts');
  const unitAssets = await server.ssrLoadModule('/src/game/data/unitAssets.ts');
  const failures = [];

  const openingPages = village.prologueOpeningPages();
  const brotherhoodPages = village.prologueBrotherhoodPages();
  const departurePages = village.prologueDeparturePages();
  assertArrayEquals(
    openingPages.map((page) => page.id),
    expectedOpeningPageIds,
    'opening story page order',
    failures
  );
  assertArrayEquals(
    brotherhoodPages.map((page) => page.id),
    expectedBrotherhoodPageIds,
    'brotherhood-to-camp story page order',
    failures
  );
  assertArrayEquals(
    departurePages.map((page) => page.id),
    expectedDeparturePageIds,
    'departure story page order',
    failures
  );
  assert(
    !JSON.stringify(departurePages).includes('잔당'),
    'the first sortie must introduce the Yellow Turban force before later battles call them remnants',
    failures
  );
  assertArrayEquals(
    [...village.prologueVillageRequiredObjectiveIds],
    expectedRequiredObjectiveIds,
    'required objective order',
    failures
  );

  const objectives = village.prologueVillageObjectiveDefinitions;
  assert(objectives.length === 4, `expected 4 objective rows, received ${objectives.length}`, failures);
  assert(
    new Set(objectives.map((objective) => objective.id)).size === objectives.length,
    'objective ids must be unique',
    failures
  );
  assert(
    objectives.at(-1)?.id === 'make-oath',
    'the final objective must be make-oath',
    failures
  );
  assertArrayEquals(
    objectives.map((objective) => objective.prerequisiteId ?? null),
    [null, 'meet-zhang-fei', 'meet-guan-yu', 'register-volunteers'],
    'village objective prerequisite chain',
    failures
  );

  const npcs = village.prologueVillageNpcDefinitions;
  const objectiveNpcIds = npcs
    .filter((npc) => npc.objectiveId)
    .map((npc) => npc.objectiveId);
  assertArrayEquals(
    [...objectiveNpcIds].sort(),
    [...expectedRequiredObjectiveIds].sort(),
    'required NPC objective coverage',
    failures
  );
  assert(
    new Set(npcs.map((npc) => npc.id)).size === npcs.length,
    'NPC ids must be unique',
    failures
  );
  assert(npcs.some((npc) => !npc.objectiveId), 'at least one optional villager should be available', failures);

  verifyNpcs(npcs, 'village', unitAssets, failures);
  const zhangFeiMeetingText = dialogueText(npcs.find((npc) => npc.id === 'zhang-fei'));
  assert(
    zhangFeiMeetingText.includes('모병 격문') &&
      zhangFeiMeetingText.includes('재산') &&
      zhangFeiMeetingText.includes('의병'),
    'Zhang Fei meeting must retain the recruitment notice, his means, and the volunteer-army proposal',
    failures
  );
  const guanYuMeetingText = dialogueText(npcs.find((npc) => npc.id === 'guan-yu'));
  assert(
    guanYuMeetingText.includes('손수레') &&
      guanYuMeetingText.includes('군문') &&
      guanYuMeetingText.includes('하동 해량'),
    'Guan Yu meeting must retain his cart arrival, enlistment journey, and origin',
    failures
  );

  assert(
    unitAssets.hasUnitSheetAsset('unit-liu-bei'),
    'the controllable Liu Bei base sheet is required',
    failures
  );
  assertArrayEquals(
    Object.values(campaign.prologueVillageCampaignTutorialIds),
    expectedCampaignMarkerIds,
    'campaign progress marker ids',
    failures
  );
  assert(
    expectedCampaignMarkerIds.every((id) => campaign.campaignTutorialIds.includes(id)),
    'every village marker must survive campaign save normalization',
    failures
  );

  assertArrayEquals(
    [...militiaCamp.prologueMilitiaCampRequiredObjectiveIds],
    expectedCampObjectiveIds,
    'militia camp required objective order',
    failures
  );
  const campObjectives = militiaCamp.prologueMilitiaCampObjectiveDefinitions;
  assertArrayEquals(
    campObjectives.map((objective) => objective.id),
    [...expectedCampObjectiveIds, 'receive-command'],
    'militia camp objective rows',
    failures
  );
  assert(
    campObjectives.find((objective) => objective.id === 'review-scout-report')?.label.includes('피난로'),
    'Guan Yu scout objective must describe the evacuation-route information actually reviewed',
    failures
  );
  const campNpcs = militiaCamp.prologueMilitiaCampNpcDefinitions;
  assertArrayEquals(
    campNpcs.filter((npc) => npc.objectiveId).map((npc) => npc.objectiveId).sort(),
    [...expectedCampObjectiveIds].sort(),
    'militia camp objective NPC coverage',
    failures
  );
  assert(
    campNpcs.filter((npc) => npc.departure).length === 1 &&
      campNpcs.find((npc) => npc.departure)?.id === 'zou-jing',
    'militia camp must have Zou Jing as the single final command interaction',
    failures
  );
  assert(
    campNpcs.some((npc) => !npc.objectiveId && !npc.departure),
    'militia camp should include at least one optional volunteer conversation',
    failures
  );
  assert(
    !JSON.stringify(campNpcs).includes('피란'),
    'militia camp dialogue must use the established 피난 terminology consistently',
    failures
  );
  assertArrayEquals(
    campNpcs.filter((npc) => dialogueText(npc).includes('후송')).map((npc) => npc.id),
    ['quartermaster'],
    'militia camp medical-evacuation responsibility',
    failures
  );
  verifyNpcs(campNpcs, 'militia camp', unitAssets, failures);
  const quartermasterText = dialogueText(campNpcs.find((npc) => npc.id === 'quartermaster'));
  assert(
    ['장세평', '소쌍', '자웅일대검', '청룡언월도', '장팔사모'].every((term) => (
      quartermasterText.includes(term)
    )),
    'quartermaster dialogue must connect the merchant support to all three signature weapons',
    failures
  );
  assertArrayEquals(
    Object.values(campaign.prologueMilitiaCampCampaignTutorialIds),
    expectedCampMarkerIds,
    'militia camp campaign progress marker ids',
    failures
  );
  assert(
    expectedCampMarkerIds.every((id) => campaign.campaignTutorialIds.includes(id)),
    'every militia camp marker must survive campaign save normalization',
    failures
  );
  assert(
    campaign.createInitialCampaignState().step === 'new' &&
      campaign.summarizeCampaignProgress({
        ...campaign.createInitialCampaignState(),
        step: 'prologue-camp'
      }).title === '탁현 의용군 막사',
    'prologue-camp must be recognized by campaign progress summaries',
    failures
  );

  if (failures.length > 0) {
    throw new Error(
      `Prologue village data verification failed with ${failures.length} issue(s):\n` +
        failures.map((failure) => `- ${failure}`).join('\n')
    );
  }

  console.log(
    `Verified ${npcs.length} village NPCs, ${campNpcs.length} militia camp NPCs, ` +
      `${openingPages.length + brotherhoodPages.length + departurePages.length} prologue story pages, ` +
      'sequential meetings, camp preparation, and save markers.'
  );
} finally {
  await server.close();
}

function assert(condition, message, failures) {
  if (!condition) {
    failures.push(message);
  }
}

function assertArrayEquals(actual, expected, label, failures) {
  assert(
    JSON.stringify(actual) === JSON.stringify(expected),
    `${label}: expected [${expected.join(', ')}], received [${actual.join(', ')}]`,
    failures
  );
}

function verifyNpcs(npcs, locationLabel, unitAssets, failures) {
  assert(
    new Set(npcs.map((npc) => npc.id)).size === npcs.length,
    `${locationLabel}: NPC ids must be unique`,
    failures
  );
  for (const npc of npcs) {
    assert(
      Number.isFinite(npc.x) && npc.x >= 70 && npc.x <= 1435 &&
        Number.isFinite(npc.y) && npc.y >= 130 && npc.y <= 900,
      `${locationLabel}/${npc.id}: position must remain inside the FHD play area`,
      failures
    );
    assert(
      unitAssets.hasUnitSheetAsset(npc.textureKey),
      `${locationLabel}/${npc.id}: missing ${npc.textureKey}`,
      failures
    );
    verifyDialogueLines(npc.dialogue, `${locationLabel}/${npc.id}/dialogue`, unitAssets, failures);
    if (npc.lockedDialogue) {
      verifyDialogueLines(
        npc.lockedDialogue,
        `${locationLabel}/${npc.id}/lockedDialogue`,
        unitAssets,
        failures
      );
    }
    if (npc.repeatDialogue) {
      verifyDialogueLines(
        npc.repeatDialogue,
        `${locationLabel}/${npc.id}/repeatDialogue`,
        unitAssets,
        failures
      );
    }
  }
}

function verifyDialogueLines(lines, label, unitAssets, failures) {
  assert(Array.isArray(lines) && lines.length > 0, `${label}: dialogue is required`, failures);
  for (const [lineIndex, line] of (lines ?? []).entries()) {
    assert(
      typeof line.speaker === 'string' && line.speaker.trim().length > 0,
      `${label}[${lineIndex}]: speaker is required`,
      failures
    );
    assert(
      typeof line.text === 'string' && line.text.trim().length >= 8 && line.text.length <= 180,
      `${label}[${lineIndex}]: dialogue must be 8-180 characters`,
      failures
    );
    if (line.textureKey) {
      assert(
        unitAssets.hasUnitSheetAsset(line.textureKey),
        `${label}[${lineIndex}]: missing dialogue sprite ${line.textureKey}`,
        failures
      );
    }
  }
}

function dialogueText(npc) {
  return [
    ...(npc?.dialogue ?? []),
    ...(npc?.lockedDialogue ?? []),
    ...(npc?.repeatDialogue ?? [])
  ].map((line) => line.text).join(' ');
}