/**
 * 标题样式相关常量（#2001）
 * - 字体列表（新增4款爆款字体）
 * - 色板（常用标题字色/描边色/背景色）
 * - 预设样式方案（10 个，含抖音爆款黄）
 */
import type { TitleStyleConfig } from "./types"

/* ── 字体选项（#2001：新增优设标题黑/阿里普惠体Bold/抖音美好体/思源黑体Heavy） ── */
export interface FontOption {
  value: string
  label: string
  /** CSS font-family 栈 */
  family: string
  /** 爆款/常用标签 */
  tag?: "hot" | "new"
}

export const FONT_OPTIONS: FontOption[] = [
  {
    value: "优设标题黑",
    label: "优设标题黑",
    // 原版"优设标题黑"为商用字体非开源；优先本地已安装字体，兜底用 Noto Sans SC（Google Fonts 已加载 wght@900，保证 bold 字重可用），再用 ZCOOL 庆科黄油体作风格兜底
    family:
      '"YouSheBiaoTiHei","YouShe Title Black","Noto Sans SC","ZCOOL QingKe HuangYou","PingFang SC","Microsoft YaHei",sans-serif',
    tag: "hot",
  },
  {
    value: "阿里普惠体Bold",
    label: "阿里普惠体Bold",
    // 阿里普惠体需从阿里官网下载；兜底用 Noto Sans SC 900（同等字重，已在 Google Fonts wght@400;500;700;900 加载）
    family:
      '"Alibaba PuHuiTi","Alibaba PuHuiTi Bold","Alibaba Sans","Noto Sans SC",system-ui,"PingFang SC","Microsoft YaHei",sans-serif',
    tag: "hot",
  },
  {
    value: "抖音美好体",
    label: "抖音美好体",
    // 抖音美好体为版权字体；兜底用 Noto Sans SC（确保 bold 字重可用），再用 ZCOOL KuaiLe（站酷快乐体，圆润卡通风格近似）
    family:
      '"Douyin Sans","DouyinSans","Noto Sans SC","ZCOOL KuaiLe","PingFang SC","Microsoft YaHei",sans-serif',
    tag: "hot",
  },
  {
    value: "思源黑体Heavy",
    label: "思源黑体Heavy",
    family:
      '"Noto Sans SC","Source Han Sans SC","Source Han Sans CN Heavy","PingFang SC","Microsoft YaHei",sans-serif',
    tag: "new",
  },
  {
    value: "思源黑体",
    label: "思源黑体",
    family: '"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif',
  },
  {
    value: "思源宋体",
    label: "思源宋体",
    family: '"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif',
  },
  {
    value: "苹方",
    label: "苹方",
    family:
      '"PingFang SC",-apple-system,blinkmacsystemfont,"Helvetica Neue","Noto Sans SC",sans-serif',
  },
  {
    value: "微软雅黑",
    label: "微软雅黑",
    family: '"Microsoft YaHei","PingFang SC","Noto Sans SC",sans-serif',
  },
  {
    value: "楷体",
    label: "楷体",
    family: '"KaiTi","STKaiti","DFKai-SB","Kaiti SC",serif',
  },
  {
    value: "站酷小薇体",
    label: "站酷小薇体",
    family: '"ZCOOL XiaoWei","Noto Serif SC",serif',
  },
  {
    value: "马善政毛笔",
    label: "马善政毛笔",
    family: '"Ma Shan Zheng","STXingkai","KaiTi",cursive',
  },
  {
    value: "龙藏体",
    label: "龙藏体",
    family: '"Long Cang","STXingkai","KaiTi",cursive',
  },
  {
    value: "流江毛笔草",
    label: "流江毛笔草",
    family: '"Liu Jian Mao Cao","STXingkai",cursive',
  },
  {
    value: "志莽行书",
    label: "志莽行书",
    family: '"Zhi Mang Xing","STXingkai",cursive',
  },
]

/** 根据中文名取 font-family 栈（找不到回退思源黑体） */
export function getFontFamily(font: string): string {
  const f = FONT_OPTIONS.find((x) => x.value === font)
  if (f) return f.family
  return FONT_OPTIONS[4].family // 思源黑体
}

/* ── 色板 ── */
/** 标题字色（常用爆款色） */
export const TITLE_COLOR_PALETTE: string[] = [
  "#ffffff",
  "#000000",
  "#ffd700", // 抖音黄
  "#ff2d55", // 抖音红
  "#ff4081",
  "#00e5ff",
  "#d4a843",
  "#ffa500",
  "#52c41a",
  "#1890ff",
  "#7c3aed",
  "#ff6b35",
]

/** 描边色（黑/白/灰为主） */
export const STROKE_COLOR_PALETTE: string[] = [
  "#000000",
  "#ffffff",
  "#333333",
  "#555555",
  "#8b0000",
  "#001f3f",
]

/** 背景色（带透明度） */
export const BG_COLOR_PALETTE: string[] = [
  "rgba(0,0,0,0.5)",
  "rgba(0,0,0,0.7)",
  "rgba(0,0,0,0.3)",
  "rgba(255,215,0,0.9)",
  "rgba(255,45,85,0.85)",
  "rgba(124,58,237,0.85)",
  "rgba(24,144,255,0.85)",
  "rgba(82,196,26,0.85)",
]

/* ── 预设样式方案（10 个，含抖音爆款黄） ── */
export interface TitlePreset {
  key: string
  label: string
  emoji: string
  /** 应用时覆盖到 TitleStyleConfig 的字段（其他字段保持当前值） */
  style: Partial<TitleStyleConfig>
}

const BASE: Partial<TitleStyleConfig> = {
  position: "bottom",
  line_overrides: [],
  cover_title_config: null,
}

export const TITLE_PRESETS: TitlePreset[] = [
  {
    key: "douyin_hot",
    label: "抖音爆款黄",
    emoji: "🔥",
    style: {
      ...BASE,
      font: "优设标题黑",
      size: 80,
      color: "#ffd700",
      bold: true,
      italic: false,
      stroke: true,
      stroke_width: 8,
      stroke_color: "#000000",
      shadow: true,
      shadow_offset_x: 3,
      shadow_offset_y: 3,
      shadow_blur: 6,
      shadow_color: "rgba(0,0,0,0.6)",
      bg_enabled: false,
      line_height: 1.25,
      max_chars_per_line: 8,
    },
  },
  {
    key: "classic_white",
    label: "经典白字黑描边",
    emoji: "⚪",
    style: {
      ...BASE,
      font: "思源黑体Heavy",
      size: 56,
      color: "#ffffff",
      bold: true,
      italic: false,
      stroke: true,
      stroke_width: 5,
      stroke_color: "#000000",
      shadow: false,
      bg_enabled: false,
      line_height: 1.2,
      max_chars_per_line: 10,
    },
  },
  {
    key: "red_bold",
    label: "醒目红字",
    emoji: "🔴",
    style: {
      ...BASE,
      font: "优设标题黑",
      size: 72,
      color: "#ff2d55",
      bold: true,
      italic: false,
      stroke: true,
      stroke_width: 6,
      stroke_color: "#ffffff",
      shadow: true,
      shadow_offset_x: 2,
      shadow_offset_y: 2,
      shadow_blur: 5,
      shadow_color: "rgba(0,0,0,0.5)",
      bg_enabled: false,
      line_height: 1.2,
      max_chars_per_line: 9,
    },
  },
  {
    key: "black_gold",
    label: "黑金质感",
    emoji: "🟡",
    style: {
      ...BASE,
      font: "思源宋体",
      size: 52,
      color: "#d4a843",
      bold: true,
      italic: false,
      stroke: false,
      shadow: true,
      shadow_offset_x: 2,
      shadow_offset_y: 2,
      shadow_blur: 8,
      shadow_color: "rgba(0,0,0,0.8)",
      bg_enabled: false,
      line_height: 1.25,
      max_chars_per_line: 10,
    },
  },
  {
    key: "neon_blue",
    label: "霓虹发光",
    emoji: "💙",
    style: {
      ...BASE,
      font: "阿里普惠体Bold",
      size: 60,
      color: "#00e5ff",
      bold: true,
      italic: false,
      stroke: false,
      shadow: true,
      shadow_offset_x: 0,
      shadow_offset_y: 0,
      shadow_blur: 16,
      shadow_color: "#00e5ff",
      bg_enabled: false,
      line_height: 1.2,
      max_chars_per_line: 10,
    },
  },
  {
    key: "bg_black",
    label: "黑底白字",
    emoji: "⬛",
    style: {
      ...BASE,
      font: "思源黑体Heavy",
      size: 52,
      color: "#ffffff",
      bold: true,
      italic: false,
      stroke: false,
      shadow: false,
      bg_enabled: true,
      bg_color: "rgba(0,0,0,0.7)",
      bg_padding: 16,
      bg_radius: 8,
      line_height: 1.3,
      max_chars_per_line: 10,
    },
  },
  {
    key: "bg_yellow",
    label: "黄底黑字",
    emoji: "🟨",
    style: {
      ...BASE,
      font: "抖音美好体",
      size: 56,
      color: "#000000",
      bold: true,
      italic: false,
      stroke: false,
      shadow: false,
      bg_enabled: true,
      bg_color: "rgba(255,215,0,0.95)",
      bg_padding: 14,
      bg_radius: 6,
      line_height: 1.2,
      max_chars_per_line: 9,
    },
  },
  {
    key: "sweet_pink",
    label: "温柔甜美粉",
    emoji: "🌸",
    style: {
      ...BASE,
      font: "阿里普惠体Bold",
      size: 50,
      color: "#ff4081",
      bold: false,
      italic: false,
      stroke: true,
      stroke_width: 4,
      stroke_color: "#ffffff",
      shadow: true,
      shadow_offset_x: 2,
      shadow_offset_y: 2,
      shadow_blur: 4,
      shadow_color: "rgba(255,64,129,0.4)",
      bg_enabled: false,
      line_height: 1.3,
      max_chars_per_line: 11,
    },
  },
  {
    key: "business_dark",
    label: "商务深色",
    emoji: "💼",
    style: {
      ...BASE,
      font: "思源黑体",
      size: 44,
      color: "#ffffff",
      bold: false,
      italic: false,
      stroke: false,
      shadow: true,
      shadow_offset_x: 1,
      shadow_offset_y: 1,
      shadow_blur: 3,
      shadow_color: "rgba(0,0,0,0.8)",
      bg_enabled: true,
      bg_color: "rgba(24,144,255,0.85)",
      bg_padding: 12,
      bg_radius: 4,
      line_height: 1.3,
      max_chars_per_line: 12,
    },
  },
  {
    key: "minimal_clean",
    label: "极简无描边",
    emoji: "✨",
    style: {
      ...BASE,
      font: "苹方",
      size: 48,
      color: "#ffffff",
      bold: true,
      italic: false,
      stroke: false,
      shadow: false,
      bg_enabled: false,
      line_height: 1.3,
      max_chars_per_line: 10,
    },
  },
]

/** 根据 key 获取预设 */
export function getTitlePreset(key: string): TitlePreset | undefined {
  return TITLE_PRESETS.find((p) => p.key === key)
}