import { NextRequest, NextResponse } from 'next/server';
import { getLinkOverview } from '@/lib/analytics';

export async function GET(request: NextRequest) {
  try {
    // 获取请求参数
    const { searchParams } = new URL(request.url);
    const linkId = searchParams.get('linkId');
    const startDate = searchParams.get('startDate') || undefined;
    const endDate = searchParams.get('endDate') || undefined;
    
    // 验证必要参数
    if (!linkId) {
      return NextResponse.json(
        { error: 'Missing required parameter: linkId' },
        { status: 400 }
      );
    }
    
    // 获取链接概览数据
    const overviewData = await getLinkOverview(
      linkId,
      startDate || undefined,
      endDate || undefined
    );
    
    // 返回数据
    return NextResponse.json(overviewData);
  } catch (error) {
    console.error('Error in overview API:', error);
    return NextResponse.json(
      { error: 'Failed to fetch overview data' },
      { status: 500 }
    );
  }
}