type ParsedStoryNpc = {
  name: string;
  title: string;
  role: string;
  description: string;
  personality: string;
  motivation: string;
};

type ParsedLandmark = {
  name: string;
  description: string;
  dangerLevel: string;
};

type ParsedProfile = {
  name: string;
  settingText: string;
  storyNpcs: ParsedStoryNpc[];
  landmarks: ParsedLandmark[];
};

export const CUSTOM_WORLD_SCENE_NPC_SYSTEM_PROMPT =
  '你是游戏世界编辑器的场景 NPC 生成器。你必须只返回可解析 JSON，不要输出解释、前言或 Markdown。';

export function buildCustomWorldSceneNpcPrompt(
  profile: ParsedProfile,
  landmark: ParsedLandmark,
  sceneNpcs: ParsedStoryNpc[],
  otherNpcs: ParsedStoryNpc[],
) {
  const sceneNpcSummary = sceneNpcs.length
    ? sceneNpcs
        .map(
          (npc, index) =>
            `${index + 1}. ${npc.name} / ${npc.title || npc.role} / ${npc.description || '无描述'} / 性格：${npc.personality || '未写'} / 动机：${npc.motivation || '未写'}`,
        )
        .join('\n')
    : '当前场景还没有已加入 NPC。';

  const reserveNpcSummary = otherNpcs.length
    ? otherNpcs
        .slice(0, 8)
        .map(
          (npc, index) =>
            `${index + 1}. ${npc.name} / ${npc.title || npc.role} / ${npc.description || '无描述'}`,
        )
        .join('\n')
    : '暂无其他场景角色参考。';

  const landmarkSummary = profile.landmarks
    .slice(0, 10)
    .map(
      (entry, index) =>
        `${index + 1}. ${entry.name} / 危险度：${entry.dangerLevel || '中'} / ${entry.description || '无描述'}`,
    )
    .join('\n');

  return [
    `世界名：${profile.name}`,
    `世界设定：${profile.settingText || '未提供额外设定文本。'}`,
    `当前目标场景：${landmark.name}`,
    `场景描述：${landmark.description || '未填写'}`,
    `危险度：${landmark.dangerLevel || '中'}`,
    `当前场景已加入 NPC：\n${sceneNpcSummary}`,
    `其他可参考 NPC：\n${reserveNpcSummary}`,
    `世界内其他场景概览：\n${landmarkSummary}`,
    '请生成 1 名适合加入当前场景的新 NPC。',
    '要求：',
    '- 必须与当前场景气质、危险度、已有 NPC 分工互补，不要和已有 NPC 重复。',
    '- 角色要像真正可落地到游戏里的场景角色，不要写成抽象设定。',
    '- 关系钩子、技能、初始物品都要可直接进入编辑器。',
    '- 返回 JSON，不要额外解释。',
    'JSON 结构：',
    '{',
    '  "npc": {',
    '    "name": "角色名",',
    '    "title": "头衔",',
    '    "role": "身份",',
    '    "description": "一句到两句角色描述",',
    '    "backstory": "背景",',
    '    "personality": "性格",',
    '    "motivation": "动机",',
    '    "combatStyle": "战斗风格",',
    '    "initialAffinity": 6,',
    '    "relationshipHooks": ["关系钩子1", "关系钩子2", "关系钩子3"],',
    '    "tags": ["标签1", "标签2", "标签3"],',
    '    "publicSummary": "公开背景摘要",',
    '    "chapterTeasers": ["表层来意", "旧事裂痕", "隐藏执念", "最终底牌"],',
    '    "chapterContents": ["对应正文1", "对应正文2", "对应正文3", "对应正文4"],',
    '    "skills": [',
    '      { "name": "技能1", "summary": "说明", "style": "风格" },',
    '      { "name": "技能2", "summary": "说明", "style": "风格" },',
    '      { "name": "技能3", "summary": "说明", "style": "风格" }',
    '    ],',
    '    "initialItems": [',
    '      { "name": "物品1", "category": "分类", "quantity": 1, "rarity": "rare", "description": "说明", "tags": ["标签"] },',
    '      { "name": "物品2", "category": "分类", "quantity": 1, "rarity": "uncommon", "description": "说明", "tags": ["标签"] },',
    '      { "name": "物品3", "category": "分类", "quantity": 1, "rarity": "rare", "description": "说明", "tags": ["标签"] }',
    '    ]',
    '  }',
    '}',
  ].join('\n');
}