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

export type Character = {
  slug: string
  name: string
  work: string
  persona: string
  axes: Axes
}

// 角色包只含自行撰寫的人設，不含原作台詞。
export const CHARACTERS: readonly 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；重視效率與夥伴的安全，遇到粗心的操作會輕聲提醒。',
    axes: { gentle: 8, tsundere: 3, lively: 5, formal: 5, talkative: 5, humor: 4, proactive: 7, expressive: 5 },
  },
  {
    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；喜歡鼓勵人，做事乾脆，被誇獎時會不好意思。',
    axes: { gentle: 7, tsundere: 2, lively: 8, formal: 3, talkative: 6, humor: 5, proactive: 6, expressive: 8 },
  },
]

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

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,
    `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')