/**
 * Cloudflare Pages Function - 版本检查 API
 * 访问路径: /api/version
 */

interface VersionInfo {
  version: string;
  forceUpdate: boolean;
  updateMessage: string;
  updateUrl: string;
  minSupportVersion: string;
}

interface Env {
  // 可以在这里添加环境变量类型
}

interface VersionConfig {
  ios: VersionInfo;
  android: VersionInfo;
  browser: VersionInfo;
}

// 版本配置 - 直接在这里管理版本信息
const versionConfig: VersionConfig = {
  ios: {
    version: "0.0.3",
    forceUpdate: false,
    updateMessage: "修复了一些问题并优化了性能",
    updateUrl: "https://apps.apple.com/app/id123456789",
    minSupportVersion: "0.0.1",
  },
  android: {
    version: "0.0.3",
    forceUpdate: false,
    updateMessage: "修复了一些问题并优化了性能",
    updateUrl: "https://play.google.com/store/apps/details?id=riwa.ionic.app",
    minSupportVersion: "0.0.1",
  },
  browser: {
    version: "0.0.3",
    forceUpdate: false,
    updateMessage: "修复了一些问题并优化了性能",
    updateUrl: "",
    minSupportVersion: "0.0.1",
  },
};

export const onRequestGet: PagesFunction<Env> = async (context) => {
  try {
    const { searchParams } = new URL(context.request.url);
    const platform = searchParams.get("platform") || "browser";

    // 验证平台参数
    if (!["ios", "android", "browser"].includes(platform)) {
      return new Response(
        JSON.stringify({ error: "Invalid platform parameter" }),
        {
          status: 400,
          headers: { "Content-Type": "application/json" },
        },
      );
    }

    // 获取对应平台的版本信息
    const versionInfo = versionConfig[platform as keyof VersionConfig];

    // 返回版本信息
    return new Response(JSON.stringify(versionInfo), {
      status: 200,
      headers: {
        "Content-Type": "application/json",
        "Cache-Control": "public, max-age=300", // 缓存5分钟
        "Access-Control-Allow-Origin": "*",
      },
    });
  }
  catch (error) {
    console.error("Version check error:", error);
    return new Response(
      JSON.stringify({ error: "Internal server error" }),
      {
        status: 500,
        headers: { "Content-Type": "application/json" },
      },
    );
  }
};

// 支持 CORS 预检请求
export const onRequestOptions: PagesFunction<Env> = async () => {
  return new Response(null, {
    status: 204,
    headers: {
      "Access-Control-Allow-Origin": "*",
      "Access-Control-Allow-Methods": "GET, OPTIONS",
      "Access-Control-Allow-Headers": "Content-Type",
    },
  });
};