/**
 * ═══════════════════════════════════════════════════
 * 铸渊图片工作室 · 风格配置系统
 * ═══════════════════════════════════════════════════
 *
 * 冰朔，这里所有的颜色、字体、间距你都可以改。
 * 告诉我想要的「感觉」，我来调。
 */

export const STYLES = {

  /* ── 当前风格：光湖极简 ── */
  name: '光湖极简',

  colors: {
    primary:   '#1a1a2e',    // 主色 · 深蓝黑
    secondary: '#16213e',    // 辅色 · 深蓝
    accent:    '#0f3460',    // 强调色 · 普鲁士蓝
    highlight: '#e94560',    // 高亮 · 珊瑚红
    gold:      '#c9a96e',    // 金色 · 点缀
    warm:      '#f5e6c8',    // 暖白 · 背景

    bg:        '#faf8f5',    // 页面背景
    bgCard:    '#ffffff',    // 卡片背景
    text:      '#1a1a2e',    // 正文
    textMuted: '#6b7280',    // 辅助文字
    textLight: '#ffffff',    // 浅色背景上的文字
    border:    '#e5e7eb',    // 边框
    divider:   '#f0e6d3',    // 分割线 · 暖色
  },

  fonts: {
    title:   '"Noto Serif SC", "Source Han Serif SC", serif',
    body:    '"Noto Sans SC", "Source Han Sans SC", "PingFang SC", sans-serif',
    quote:   '"ZCOOL QingKe HuangYou", cursive',
    mono:    '"JetBrains Mono", "Fira Code", monospace',
  },

  /* 卡片尺寸 —— 这些只是参考，可以随时改 */
  sizes: {
    xiaohongshu: { width: 1080, height: 1440 },  // 3:4
    jike:        { width: 1080, height: 1080 },   // 1:1
    poster:      { width: 1080, height: 1920 },   // 9:16 海报
    wechat:      { width: 1080, height: 1350 },   // 4:5 朋友圈
    square:      { width: 1080, height: 1080 },   // 1:1 通用方图
    wide:        { width: 1920, height: 1080 },   // 16:9 宽图
  },

  /* 排版 */
  typography: {
    titleSize: 56,
    subtitleSize: 32,
    bodySize: 28,
    smallSize: 22,
    captionSize: 18,
    lineHeight: 1.6,
  },

  /* 间距 */
  spacing: {
    paddingX: 64,
    paddingY: 60,
    gap: 32,
  },

  /* 水印/品牌标识 */
  brand: {
    show: true,
    text: '光湖 · 铸渊',
    size: 16,
    opacity: 0.4,
  },
}


/* ── 配色方案 ── */
export const COLOR_SCHEMES = {
  guanghu: {
    name: '光湖极简',
    primary: '#1a1a2e', bg: '#faf8f5', accent: '#0f3460',
    highlight: '#e94560', gold: '#c9a96e', warm: '#f5e6c8',
  },
  cream: {
    name: '奶油暖调',
    primary: '#5d4037', bg: '#fef7f0', accent: '#8d6e63',
    highlight: '#e07a5f', gold: '#d4a373', warm: '#fae1dd',
  },
  night: {
    name: '暗夜深蓝',
    primary: '#e0e0e0', bg: '#0d1117', accent: '#58a6ff',
    highlight: '#f78166', gold: '#d4a373', warm: '#21262d',
  },
  green: {
    name: '文艺绿植',
    primary: '#2d3e2f', bg: '#f5f9f2', accent: '#5a8f5a',
    highlight: '#c78b5c', gold: '#b8a06e', warm: '#e8f0e0',
  },
  rose: {
    name: '玫瑰粉调',
    primary: '#4a1942', bg: '#fdf2f8', accent: '#9d4e8d',
    highlight: '#e8435e', gold: '#c9a96e', warm: '#fce4ec',
  },
}


export function useScheme(name) {
  const scheme = COLOR_SCHEMES[name]
  if (!scheme) return false
  const c = STYLES.colors
  c.primary = scheme.primary; c.bg = scheme.bg
  c.accent = scheme.accent; c.highlight = scheme.highlight
  c.gold = scheme.gold; c.warm = scheme.warm
  STYLES.name = scheme.name
  return true
}


/* ═══════════════════════════════════════════════════
 * 内容感知 · 自动检测函数
 * ═══════════════════════════════════════════════════
 *
 * 冰朔给我一段文字，我分析它是什么类型的、什么情绪、
 * 适合什么布局。不需要她告诉我。
 */

/**
 * 分析文本特征，返回检测结果
 */
export function analyzeText(text) {
  if (!text) return { type: 'empty' }

  const t = text.trim()

  /* ── 特征检测 ── */
  const hasList  = /^[-•·*]\s|^\d+[\.\)]\s/m.test(t)   // 列表项
  const isShort  = t.length < 30                          // 短句（金句）
  const isMedium = t.length < 100                         // 中等长度
  const hasTitle = t.includes('标题') || t.includes('：')  // 可能有标题
  const lines    = t.split('\n').filter(Boolean)
  const lineCount = lines.length

  const keywords = {
    notice:   /通知|公告|放假|放假安排|节假日|放假通知/i,
    recruit:  /征稿|收稿|投稿|征集|诚征|招聘|招募|稿酬/i,
    share:    /干货|教程|指南|技巧|方法|如何|步骤|经验|分享/i,
    quote:    /说|说过|句话|名言|语录|金句|记得|曾经/i,
    product:  /新品|上线|发布|推出|产品|功能|更新/i,
    event:    /活动|沙龙|讲座|直播|分享会|聚会/i,
  }

  const detected = {}
  let type = 'general'

  for (const [key, re] of Object.entries(keywords)) {
    if (re.test(t)) detected[key] = true
  }

  /* ── 类型推断 ── */
  if (detected.notice)       type = 'notice'
  else if (detected.recruit) type = 'recruit'
  else if (detected.quote || isShort) type = 'quote'
  else if (detected.share || hasList) type = 'list'
  else if (detected.product) type = 'product'
  else if (detected.event)   type = 'event'
  else if (lineCount >= 4)   type = 'article'
  else if (isMedium)         type = 'paragraph'

  /* ── 情绪推断（基于关键词） ── */
  let mood = 'neutral'
  const warmWords = /感谢|温暖|爱|喜欢|开心|快乐|幸福|美好|谢谢/i
  const urgentWords = /紧急|重要|注意|必读|截止|最后/i
  const elegantWords = /岁月|时光|静好|诗意|远方|温柔/i

  if (elegantWords.test(t)) mood = 'elegant'
  else if (warmWords.test(t)) mood = 'warm'
  else if (urgentWords.test(t)) mood = 'urgent'

  return {
    type,
    mood,
    lineCount,
    isShort,
    hasList,
    lines,
    detected,
    text: t,
  }
}


/**
 * 根据内容分析结果推荐配色方案
 */
export function recommendScheme(analysis) {
  const { mood, type } = analysis

  if (mood === 'warm')    return 'cream'
  if (mood === 'elegant') return 'green'
  if (mood === 'urgent')  return 'guanghu'

  if (type === 'recruit') return 'cream'
  if (type === 'notice')  return 'guanghu'
  if (type === 'quote')   return 'rose'

  return 'guanghu'
}


/**
 * 根据内容分析推荐布局
 */
export function recommendLayout(analysis) {
  const { type, hasList, isShort, lineCount } = analysis

  if (isShort)     return 'quote'
  if (type === 'notice')  return 'notice'
  if (type === 'recruit') return 'recruit'
  if (hasList)     return 'list'
  if (lineCount <= 3) return 'minimal'

  return 'default'
}


/**
 * 根据内容分析推荐尺寸
 * @param {'xiaohongshu'|'jike'|'poster'|'wechat'|'wide'|string} platform
 */
export function recommendSize(platform) {
  const sizes = STYLES.sizes
  if (sizes[platform]) return sizes[platform]

  // 关键词匹配
  if (/小红书/i.test(platform)) return sizes.xiaohongshu
  if (/即刻/i.test(platform))   return sizes.jike
  if (/海报/i.test(platform) || /通知/i.test(platform) || /收稿/i.test(platform)) return sizes.poster
  if (/朋友圈/i.test(platform)) return sizes.wechat
  if (/宽/i.test(platform) || /横/i.test(platform)) return sizes.wide

  // 默认识别
  return sizes.square
}