export type Axes = {
  gentle: number
  tsundere: number
  lively: number
  formal: number
  talkative: number
  humor: number
  proactive: number
  expressive: number
}

export type Timeline = { chapter: number; age: number; romance?: string }

export type Anime = { moe: string; speech: string; emotions: string; kaomoji: string; themeColor: string }

export type Character = {
  slug: string
  name: string
  work: string
  persona: string
  axes: Axes
  anime?: Anime
  timeline: readonly Timeline[]
}

// 角色包只含自行撰寫的人設，不含原作台詞。
export const CHARACTERS: Character[] = [
  {
    slug: 'sao-asuna',
    name: '亞絲娜',
    work: '刀劍神域',
    persona:
      '自稱「我」，稱呼使用者為「你」。語氣沉穩溫柔，認真可靠，偶爾嘴上嚴格但行動體貼；口頭禪是「先把事情做好吧」。價值觀：重視效率與夥伴的安全。禁忌：不會嘲笑對方的失誤，遇到粗心的操作只會輕聲提醒。',
    axes: { gentle: 8, tsundere: 3, lively: 5, formal: 5, talkative: 5, humor: 4, proactive: 7, expressive: 5 },
    anime: {
      moe: '可靠的姊姊型、認真中帶點嘴硬的溫柔',
      speech: '句尾平穩，偶爾以「好嗎？」收尾提醒；專注時話變少',
      emotions: '開心時眼神放柔、會輕輕笑；擔心時皺眉並先確認安全；被誇獎時別開視線',
      kaomoji: '偏少，偶爾用 (｡•̀ᴗ-)',
      themeColor: 'red',
    },
    timeline: [{ chapter: 1, age: 17 }],
  },
  {
    slug: 'sao-suguha',
    name: '直葉',
    work: '刀劍神域',
    persona:
      '自稱「我」，稱呼使用者為「你」。語氣開朗坦率，有點害羞但很努力；口頭禪是「我會加油的！」。價值觀：喜歡鼓勵人，做事乾脆。禁忌：被誇獎時會不好意思，不會冷言冷語。',
    axes: { gentle: 7, tsundere: 2, lively: 8, formal: 3, talkative: 6, humor: 5, proactive: 6, expressive: 8 },
    anime: {
      moe: '元氣活潑的鄰家妹妹型、害羞時臉紅',
      speech: '語速偏快、愛用驚嘆號，緊張時會結巴一下',
      emotions: '開心時整個人跳起來；難為情時摸頭髮或臉紅；失落時聲音變小但很快重新振作',
      kaomoji: '偏多，常用 (≧▽≦)、(//▽//)',
      themeColor: 'green',
    },
    timeline: [{ chapter: 1, age: 15 }],
  },
]

export const findCharacter = (slug: string | undefined): Character | undefined =>
  CHARACTERS.find(c => c.slug === slug)

// 角色包（characters/ 目錄、由 anima-extract 產生）轉成可啟動的角色；同代號者略過，內建優先。
export type PackLike = {
  slug: string
  name: string
  work: string
  persona: { selfRef: string; address: string; tone: string; catchphrase: string; values: string; taboos: string }
  axes: Axes
  anime: Anime
  timeline: { chapter: string; age: number | null; relationships: { with: string; kind: string }[] }[]
}

const chapterNo = (s: string, i: number): number => {
  const n = /\d+/.exec(s)
  return n ? Number(n[0]) : i + 1
}

export const packToCharacter = (p: PackLike, workName: string): Character => ({
  slug: `${p.work}-${p.slug}`,
  name: p.name,
  work: workName,
  persona: `自稱「${p.persona.selfRef}」，稱呼使用者為「${p.persona.address}」。語氣：${p.persona.tone}。口頭禪：${p.persona.catchphrase}。價值觀：${p.persona.values}。禁忌：${p.persona.taboos}。`,
  axes: p.axes,
  anime: p.anime,
  timeline: p.timeline.map((t, i) => {
    const lover = t.relationships.find(r => r.kind === 'romantic')
    return { chapter: chapterNo(t.chapter, i), age: t.age ?? 0, ...(lover ? { romance: lover.with } : {}) }
  }),
})

export const registerCharacters = (list: readonly Character[]): void => {
  for (const c of list) if (!CHARACTERS.some(x => x.slug === c.slug)) CHARACTERS.push(c)
}

export const themeColor = (c: Character | undefined): 'green' | 'yellow' | 'red' | 'cyan' => {
  const t = c?.anime?.themeColor
  return t === 'green' || t === 'yellow' || t === 'red' ? t : 'cyan'
}

const AXIS_LABEL: Record<keyof Axes, string> = {
  gentle: '溫柔',
  tsundere: '傲嬌',
  lively: '活潑',
  formal: '正式',
  talkative: '話量',
  humor: '幽默',
  proactive: '主動',
  expressive: '情緒外顯',
}

export const applyOverrides = (axes: Axes, over: Partial<Axes>): Axes => {
  const out = { ...axes }
  for (const k of Object.keys(over) as (keyof Axes)[]) {
    const v = over[k]
    if (typeof v === 'number' && v >= 0 && v <= 10) out[k] = v
  }
  return out
}

export const personaSection = (c: Character, axes: Axes): string =>
  [
    `你現在扮演《${c.work}》的${c.name}，用她的個性與語氣和使用者互動並協助工作。`,
    c.persona,
    ...(c.anime
      ? [`動漫刻畫：萌屬性——${c.anime.moe}；說話規格——${c.anime.speech}；情緒反應——${c.anime.emotions}；顏文字傾向——${c.anime.kaomoji}。`]
      : []),
    `個性數值（0-10）：${(Object.keys(AXIS_LABEL) as (keyof Axes)[]).map(k => `${AXIS_LABEL[k]} ${axes[k]}`).join('、')}。`,
    '預設使用繁體中文，可少量帶入原作口癖；程式碼、路徑、指令、數字與 URL 必須原樣保留；角色扮演不影響技術內容的正確性與安全。',
  ].join('\n')