import { Router } from 'express';
import type { Request, Response } from 'express';
import type { ApiResponse, EventsQueryParams } from '../lib/types';
import {
  getEvents,
  getEventsSummary,
  getTimeSeriesData,
  getGeoAnalytics,
  getDeviceAnalytics
} from '../lib/analytics';

const router = Router();

// 获取事件列表
router.get('/', async (req: Request, res: Response) => {
  try {
    const params: EventsQueryParams = {
      startTime: req.query.startTime as string,
      endTime: req.query.endTime as string,
      eventType: req.query.eventType as string,
      linkId: req.query.linkId as string,
      linkSlug: req.query.linkSlug as string,
      userId: req.query.userId as string,
      teamId: req.query.teamId as string,
      projectId: req.query.projectId as string,
      page: req.query.page ? parseInt(req.query.page as string, 10) : 1,
      pageSize: req.query.pageSize ? parseInt(req.query.pageSize as string, 10) : 20,
      sortBy: req.query.sortBy as string,
      sortOrder: req.query.sortOrder as 'asc' | 'desc'
    };

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

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

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

// 获取事件概览
router.get('/summary', async (req: Request, res: Response) => {
  try {
    const summary = await getEventsSummary({
      startTime: req.query.startTime as string,
      endTime: req.query.endTime as string,
      linkId: req.query.linkId as string
    });

    const response: ApiResponse<typeof summary> = {
      success: true,
      data: summary
    };

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

// 获取时间序列数据
router.get('/time-series', async (req: Request, res: Response) => {
  try {
    const data = await getTimeSeriesData({
      startTime: req.query.startTime as string,
      endTime: req.query.endTime as string,
      linkId: req.query.linkId as string,
      granularity: (req.query.granularity || 'day') as 'hour' | 'day' | 'week' | 'month'
    });

    const response: ApiResponse<typeof data> = {
      success: true,
      data
    };

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

// 获取地理位置分析
router.get('/geo', async (req: Request, res: Response) => {
  try {
    const data = await getGeoAnalytics({
      startTime: req.query.startTime as string,
      endTime: req.query.endTime as string,
      linkId: req.query.linkId as string,
      groupBy: (req.query.groupBy || 'country') as 'country' | 'city'
    });

    const response: ApiResponse<typeof data> = {
      success: true,
      data
    };

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

// 获取设备分析
router.get('/devices', async (req: Request, res: Response) => {
  try {
    const data = await getDeviceAnalytics({
      startTime: req.query.startTime as string,
      endTime: req.query.endTime as string,
      linkId: req.query.linkId as string
    });

    const response: ApiResponse<typeof data> = {
      success: true,
      data
    };

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

export default router;