import { NextRequest, NextResponse } from 'next/server';
import type { ApiResponse, EventsQueryParams, EventType } from '@/lib/types';
import {
  getEvents,
  getEventsSummary,
  getTimeSeriesData,
  getGeoAnalytics,
  getDeviceAnalytics
} from '@/lib/analytics';

// 获取事件列表
export async function GET(request: NextRequest) {
  try {
    const searchParams = request.nextUrl.searchParams;
    
    const params: EventsQueryParams = {
      startTime: searchParams.get('startTime') || undefined,
      endTime: searchParams.get('endTime') || undefined,
      eventType: searchParams.get('eventType') as EventType || undefined,
      linkId: searchParams.get('linkId') || undefined,
      linkSlug: searchParams.get('linkSlug') || undefined,
      userId: searchParams.get('userId') || undefined,
      teamId: searchParams.get('teamId') || undefined,
      projectId: searchParams.get('projectId') || undefined,
      page: searchParams.has('page') ? parseInt(searchParams.get('page')!, 10) : 1,
      pageSize: searchParams.has('pageSize') ? parseInt(searchParams.get('pageSize')!, 10) : 20,
      sortBy: searchParams.get('sortBy') || undefined,
      sortOrder: (searchParams.get('sortOrder') as 'asc' | 'desc') || undefined
    };

    const { events, total } = await getEvents(params);

    const response: ApiResponse<typeof events> = {
      success: true,
      data: events,
      meta: {
        total,
        page: params.page,
        pageSize: params.pageSize
      }
    };

    return NextResponse.json(response);
  } catch (error) {
    const response: ApiResponse<null> = {
      success: false,
      error: error instanceof Error ? error.message : 'Unknown error occurred'
    };
    return NextResponse.json(response, { status: 500 });
  }
}