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

import { AnimationState, type Character, WorldType } from '../types';
import { buildExpandedCustomWorldProfile } from './customWorldBuilder';
import { buildUserPrompt } from './prompt';
import { buildSceneNarrativeDirective } from './storyEngine/sceneNarrativeDirector';
import { buildEncounterVisibilitySlice } from './storyEngine/visibilityEngine';

function createCharacter(): Character {
  return {
    id: 'hero',
    name: '林澈',
    title: '行旅客',
    description: '一名谨慎前行的旅人。',
    backstory: '从北境一路追着旧案残线而来。',
    avatar: '/hero.png',
    portrait: '/hero-portrait.png',
    assetFolder: 'hero',
    assetVariant: 'default',
    attributes: {
      strength: 10,
      agility: 9,
      intelligence: 8,
      spirit: 9,
    },
    personality: '谨慎、克制、先看局势。',
    skills: [],
    adventureOpenings: {},
  };
}

describe('buildUserPrompt', () => {
  it('does not leak full custom-world backstory on first contact', () => {
    const profile = buildExpandedCustomWorldProfile(
      {
        id: 'prompt-world',
        name: '裂潮边城',
        subtitle: '旧案回响',
        summary: '一座在裂潮与旧案回响之间摇摇欲坠的边城。',
        tone: '紧张、克制、暗流涌动',
        playerGoal: '查清边城裂潮背后的封桥旧令',
        templateWorldType: 'WUXIA',
        majorFactions: ['巡边司', '潮商会'],
        coreConflicts: ['裂潮再度逼近边路', '封桥旧案再被人提起'],
        playableNpcs: [
          {
            id: 'playable-1',
            name: '沈砺',
            title: '灰炬向导',
            role: '向导',
            description: '熟悉裂潮边路的灰炬向导。',
            backstory: '曾在旧撤离线里失去一整支同行队。',
            personality: '谨慎寡言，先看风向再开口。',
            motivation: '想查清旧撤离线为何再次失控。',
            combatStyle: '短弓牵制后贴近补刀。',
            initialAffinity: 18,
            relationshipHooks: ['旧撤离线', '名单'],
            tags: ['裂潮', '向导'],
            backstoryReveal: {
              publicSummary: '他只说自己熟悉边路。',
              chapters: [
                { id: 'surface', title: '表层来意', affinityRequired: 0, teaser: '他总盯着风向和路标。', content: '他先把注意力放在边路是否还能走。', contextSnippet: '他总先谈路和风。' },
                { id: 'scar', title: '旧事裂痕', affinityRequired: 30, teaser: '旧撤离线像在他身上留下了什么。', content: '那次撤离失控后，他一直没再离开这片边路。', contextSnippet: '撤离旧事还没过去。' },
                { id: 'bind', title: '隐藏执念', affinityRequired: 60, teaser: '名单上的名字让他一直不肯放手。', content: '他一直在比对那份回响名单与旧撤离线。', contextSnippet: '他一直在查名单。' },
                { id: 'truth', title: '最终底牌', affinityRequired: 90, teaser: '他知道裂潮里有人故意改过路标。', content: '他怀疑有人借裂潮重启旧案。', contextSnippet: '有人在利用裂潮。' },
              ],
            },
            skills: [],
            initialItems: [],
          },
        ],
        storyNpcs: [
          {
            id: 'story-1',
            name: '梁砺',
            title: '断桥巡守',
            role: '巡守',
            description: '守着断桥与旧哨火的巡守。',
            backstory: '旧案爆发时，他是最后一个封桥的人。',
            personality: '警觉直接，不喜欢绕弯。',
            motivation: '不想让旧案再次借裂潮翻上来。',
            combatStyle: '长兵先压，再卡住路口。',
            initialAffinity: 6,
            relationshipHooks: ['封桥', '旧哨火'],
            tags: ['巡守', '断桥'],
            backstoryReveal: {
              publicSummary: '他只承认自己还在守桥。',
              chapters: [
                { id: 'surface', title: '表层来意', affinityRequired: 0, teaser: '他只说桥还不能放开。', content: '他总先谈桥和路。', contextSnippet: '桥还不能放开。' },
                { id: 'scar', title: '旧事裂痕', affinityRequired: 30, teaser: '封桥那夜明显留下了后劲。', content: '他始终忘不了那夜桥上的名单。', contextSnippet: '封桥旧事还压着他。' },
                { id: 'bind', title: '隐藏执念', affinityRequired: 60, teaser: '他像还在替谁守着一个错误。', content: '他一直替旧命令继续守线。', contextSnippet: '他还在守旧命令。' },
                { id: 'truth', title: '最终底牌', affinityRequired: 90, teaser: '有人逼他在封桥和救人之间选过。', content: '那夜真正下封桥令的人还没有露面。', contextSnippet: '封桥命令另有来头。' },
              ],
            },
            skills: [],
            initialItems: [
              {
                id: 'item-1',
                name: '旧哨铜钥',
                category: '稀有品',
                quantity: 1,
                rarity: 'rare',
                description: '钥身磨得发亮。',
                tags: ['旧哨火'],
              },
            ],
          },
        ],
        items: [],
        landmarks: [
          {
            id: 'landmark-1',
            name: '断桥旧哨',
            description: '旧哨火和断桥一起守着边城北口。',
            dangerLevel: 'high',
            sceneNpcIds: ['story-1'],
            connections: [],
          },
        ],
      },
      '玩家想要一个裂潮边城与旧案回响交织的世界。',
    );

    const npc = profile.storyNpcs[0]!;
    const visibilitySlice = buildEncounterVisibilitySlice({
      narrativeProfile: npc.narrativeProfile,
      backstoryReveal: npc.backstoryReveal,
      disclosureStage: 'guarded',
      isFirstMeaningfulContact: true,
      seenBackstoryChapterIds: [],
      storyEngineMemory: {
        discoveredFactIds: [],
        activeThreadIds: npc.narrativeProfile?.relatedThreadIds ?? [],
        resolvedScarIds: [],
        recentCarrierIds: [],
      },
      activeThreadIds: npc.narrativeProfile?.relatedThreadIds ?? [],
    });
    const prompt = buildUserPrompt(
      WorldType.CUSTOM,
      createCharacter(),
      [],
      [],
      {
        playerHp: 30,
        playerMaxHp: 40,
        playerMana: 10,
        playerMaxMana: 20,
        inBattle: false,
        playerX: 0,
        playerFacing: 'right',
        playerAnimation: AnimationState.IDLE,
        skillCooldowns: {},
        sceneId: 'custom-scene-landmark-1',
        sceneName: '断桥旧哨',
        sceneDescription: '风里尽是旧哨火和潮声。',
        encounterKind: 'npc',
        encounterId: npc.id,
        encounterName: npc.name,
        encounterDescription: npc.description,
        encounterContext: npc.role,
        encounterAffinity: npc.initialAffinity,
        encounterAffinityText: '对你仍有戒备，也在观察你会怎么试探。',
        encounterDisclosureStage: 'guarded',
        encounterWarmthStage: 'distant',
        encounterAnswerMode: 'situational_only',
        encounterAllowedTopics: ['眼前危险', '现场判断', '模糊钩子'],
        encounterBlockedTopics: ['完整来历', '真正目标', '旧事全貌'],
        isFirstMeaningfulContact: true,
        firstContactRelationStance: 'guarded',
        recentSharedEvent: '你们还只是刚刚真正把话对上。',
        talkPriority: '优先谈桥口、来意和眼前压力，不要直接摊开旧案全貌。',
        encounterCustomProfile: npc,
        encounterNarrativeProfile: npc.narrativeProfile,
        visibilitySlice,
        sceneNarrativeDirective: buildSceneNarrativeDirective({
          sceneId: 'custom-scene-landmark-1',
          sceneName: '断桥旧哨',
          encounterId: npc.id,
          encounterName: npc.name,
          recentActions: [],
          activeThreadIds: npc.narrativeProfile?.relatedThreadIds ?? [],
          visibilitySlice,
          encounterNarrativeProfile: npc.narrativeProfile,
          disclosureStage: 'guarded',
          isFirstMeaningfulContact: true,
          affinity: npc.initialAffinity,
        }),
        activeThreadIds: npc.narrativeProfile?.relatedThreadIds ?? [],
        customWorldProfile: profile,
      },
    );

    expect(prompt).toContain(npc.narrativeProfile?.publicMask ?? '');
    expect(prompt).toContain(npc.narrativeProfile?.immediatePressure ?? '');
    expect(prompt).not.toContain(npc.backstory);
    expect(prompt).not.toContain(npc.backstoryReveal.chapters[3]!.content);
    expect(prompt).not.toContain(npc.initialItems[0]!.name);
  });

  it('requires an empty encounter payload during non-pending follow-up reasoning such as post-battle continuation', () => {
    const prompt = buildUserPrompt(
      WorldType.WUXIA,
      createCharacter(),
      [],
      [
        {
          text: '挥刀抢攻',
          options: [],
          historyRole: 'action',
        },
        {
          text: '山道客已经败下阵来。',
          options: [],
          historyRole: 'result',
        },
      ],
      {
        playerHp: 26,
        playerMaxHp: 40,
        playerMana: 8,
        playerMaxMana: 20,
        inBattle: false,
        playerX: 0,
        playerFacing: 'right',
        playerAnimation: AnimationState.IDLE,
        skillCooldowns: {},
        sceneId: 'forest_road',
        sceneName: '山道',
        sceneDescription: '风从林梢压下来，地上还留着刚才交手的痕迹。',
        pendingSceneEncounter: false,
      },
      '挥刀抢攻',
    );

    expect(prompt).toContain('encounter 必须为 null');
    expect(prompt).toContain('战斗结束后的续写');
  });

  it('does not feed mixed-language history and directive snippets back into story prompts', () => {
    const prompt = buildUserPrompt(
      WorldType.WUXIA,
      createCharacter(),
      [],
      [
        {
          text: 'Move forward carefully.',
          options: [],
          historyRole: 'action',
        },
        {
          text: 'The wind is cold. 你听见山道尽头有脚步声。',
          options: [],
          historyRole: 'result',
        },
      ],
      {
        playerHp: 26,
        playerMaxHp: 40,
        playerMana: 8,
        playerMaxMana: 20,
        inBattle: false,
        playerX: 0,
        playerFacing: 'right',
        playerAnimation: AnimationState.ATTACK,
        skillCooldowns: {},
        sceneId: 'forest_road',
        sceneName: '山道',
        sceneDescription: '风从林梢压下来。',
        pendingSceneEncounter: false,
        conversationSituation: 'post_battle_breath',
        conversationPressure: 'medium',
        recentSharedEvent:
          'A fight just ended. Both sides are still catching their breath.',
        talkPriority:
          'Focus on the most useful judgment, danger, and next step.',
        partyRelationshipNotes:
          'Lan is becoming more open in private conversation.',
        recentChronicleSummary: 'Baseline summary from previous run.',
        sceneNarrativeDirective: {
          primaryPressure: 'Danger is still active near the camp.',
          activeThreadIds: ['thread-old-case'],
          foregroundActorIds: [],
          foregroundCarrierIds: [],
          revealBudget: 'low',
          emotionalCadence: 'tense',
        },
      },
      'Move forward carefully.',
    );

    expect(prompt).not.toContain('A fight just ended');
    expect(prompt).not.toContain('Focus on the most useful judgment');
    expect(prompt).not.toContain('Baseline summary');
    expect(prompt).not.toContain('Move forward carefully');
    expect(prompt).not.toContain('thread-old-case');
    expect(prompt).not.toContain('Danger is still active');
    expect(prompt).toContain('战后缓气');
    expect(prompt).toContain('紧绷');
    expect(prompt).toContain('这一轮的局势已经出现了新的变化。');
  });
});