/**
 * 主题数据加载器 - 根据 CURRENT_THEME 加载对应主题的内容
 * 新增主题：1. 在 config/site.config.ts 添加 THEME_CONFIGS
 *          2. 在 content/themes/[theme-id]/ 下添加 messages 和 data
 *          3. 在本文件 switch 中添加 case
 */

import { CURRENT_THEME, THEME_IDS, type ThemeId } from "@/config";

export type Locale = "zh" | "en";

export type ToolsCategory = {
  id: string;
  icon: string;
  title: string;
  color: string;
  bg: string;
  text: string;
  tools: Array<{ name: string; desc: string; href: string }>;
};

/** 加载当前主题的 messages */
export async function getThemeMessages(
  locale: Locale
): Promise<Record<string, unknown>> {
  const theme = CURRENT_THEME;
  switch (theme) {
    case "digital-nomad": {
      const mod =
        locale === "zh"
          ? await import("@/content/themes/digital-nomad/messages/zh.json")
          : await import("@/content/themes/digital-nomad/messages/en.json");
      return mod.default;
    }
    case "solo-company":
    case "tiktok-ops":
    case "indie-dev":
      // 新主题暂无内容时回退到 digital-nomad
      return getThemeMessagesFallback(locale);
    default:
      return getThemeMessagesFallback(locale);
  }
}

async function getThemeMessagesFallback(
  locale: Locale
): Promise<Record<string, unknown>> {
  const mod =
    locale === "zh"
      ? await import("@/content/themes/digital-nomad/messages/zh.json")
      : await import("@/content/themes/digital-nomad/messages/en.json");
  return mod.default;
}

/** 加载当前主题的 tools 数据 */
export async function getThemeToolsData(): Promise<{
  categories: ToolsCategory[];
}> {
  const theme = CURRENT_THEME;
  switch (theme) {
    case "digital-nomad": {
      const mod = await import(
        "@/content/themes/digital-nomad/data/tools.json"
      );
      return mod.default;
    }
    case "solo-company":
    case "tiktok-ops":
    case "indie-dev":
      return getThemeToolsDataFallback();
    default:
      return getThemeToolsDataFallback();
  }
}

async function getThemeToolsDataFallback(): Promise<{
  categories: ToolsCategory[];
}> {
  const mod = await import(
    "@/content/themes/digital-nomad/data/tools.json"
  );
  return mod.default;
}

export type ResourceData = {
  books: Array<{ cover: string; title: string; href: string }>;
  products: Array<{ image: string; name: string; href: string }>;
  pan: {
    categories: Array<{
      id: string;
      title: string;
      icon: string;
      items: Array<{ name: string; desc: string; href: string }>;
    }>;
  };
};

/** 加载资源导航数据：图书、商业数码、网盘 */
export async function getResourceData(): Promise<ResourceData> {
  const theme = CURRENT_THEME;
  if (theme === "digital-nomad") {
    const [booksMod, productsMod, panMod] = await Promise.all([
      import("@/content/themes/digital-nomad/data/books.json"),
      import("@/content/themes/digital-nomad/data/products.json"),
      import("@/content/themes/digital-nomad/data/pan.json"),
    ]);
    return {
      books: booksMod.default.books,
      products: productsMod.default.products,
      pan: panMod.default,
    };
  }
  return getResourceDataFallback();
}

async function getResourceDataFallback(): Promise<ResourceData> {
  const [booksMod, productsMod, panMod] = await Promise.all([
    import("@/content/themes/digital-nomad/data/books.json"),
    import("@/content/themes/digital-nomad/data/products.json"),
    import("@/content/themes/digital-nomad/data/pan.json"),
  ]);
  return {
    books: booksMod.default.books,
    products: productsMod.default.products,
    pan: panMod.default,
  };
}

export { CURRENT_THEME, THEME_IDS };
export type { ThemeId };