/**
 * 视频归档定时任务触发API
 * 用于 Cron Job 定时调用，执行视频归档任务
 * 
 * 使用方法：
 * 1. 配置环境变量 CRON_SECRET
 * 2. 在 Vercel Cron 或外部 Cron 服务中配置定时触发
 * 3. 每小时执行一次：0 * * * *
 */

import { NextResponse } from "next/server";
import { runVideoArchiveJob } from "@/lib/jobs/video-archive-job";
import { getVideosToArchive } from "@/lib/jobs/video-archive-job";

/**
 * 验证请求授权（防止未授权调用）
 */
function verifyAuthToken(request: Request): boolean {
  const authHeader = request.headers.get("authorization");
  const token = authHeader?.replace("Bearer ", "");

  // 与环境变量中的密钥比对
  const cronSecret = process.env.CRON_SECRET;
  
  // 如果未配置 CRON_SECRET，则允许所有请求（开发环境）
  if (!cronSecret) {
    console.warn("[VideoArchiveAPI] ⚠️  CRON_SECRET 未配置，允许所有请求");
    return true;
  }

  return token === cronSecret;
}

/**
 * POST /api/jobs/archive-videos
 * 执行视频归档任务
 */
export async function POST(request: Request) {
  try {
    // 1. 验证授权
    if (!verifyAuthToken(request)) {
      return NextResponse.json(
        { error: "Unauthorized" },
        { status: 401 }
      );
    }

    // 2. 执行归档任务
    const result = await runVideoArchiveJob();

    // 3. 返回成功响应
    return NextResponse.json({
      success: result.success,
      message: result.message,
      stats: {
        total: result.total,
        succeeded: result.succeeded,
        failed: result.failed,
      },
      timestamp: new Date().toISOString(),
    });
  } catch (error: any) {
    console.error("[VideoArchiveAPI] ❌ Job execution failed:", error);

    return NextResponse.json(
      {
        success: false,
        error: error.message,
        timestamp: new Date().toISOString(),
      },
      { status: 500 }
    );
  }
}

/**
 * GET /api/jobs/archive-videos
 * 查询待归档视频统计
 */
export async function GET(request: Request) {
  try {
    // 验证授权
    if (!verifyAuthToken(request)) {
      return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
    }

    // 查询待归档视频
    const videos = await getVideosToArchive();

    return NextResponse.json({
      pendingCount: videos.length,
      videos: videos.map((v) => ({
        id: v.id,
        createdAt: v.createdAt,
        temporaryVideoUrl: v.temporaryVideoUrl,
      })),
      timestamp: new Date().toISOString(),
    });
  } catch (error: any) {
    console.error("[VideoArchiveAPI] ❌ Query failed:", error);

    return NextResponse.json(
      {
        success: false,
        error: error.message,
        timestamp: new Date().toISOString(),
      },
      { status: 500 }
    );
  }
}