/**
 * Stats Controller - 运营统计控制器
 * 
 * 提供运营看板数据接口
 * 
 * @version 1.0.0
 * @date 2026-01-25
 */

import type { FastifyRequest, FastifyReply } from 'fastify';
import { activityService } from '../../../common/services/activity.service.js';
import { logger } from '../../../common/logging/index.js';

/**
 * 获取今日大盘数据
 * GET /api/admin/stats/overview
 */
export async function getOverview(
  request: FastifyRequest,
  reply: FastifyReply
) {
  try {
    const data = await activityService.getTodayOverview();
    return reply.send({
      success: true,
      data,
    });
  } catch (error: any) {
    logger.error('[StatsController] 获取大盘数据失败', { error: error.message });
    return reply.status(500).send({
      success: false,
      message: error.message || '获取大盘数据失败',
    });
  }
}

/**
 * 获取实时流水账
 * GET /api/admin/stats/live-feed?limit=100
 */
export async function getLiveFeed(
  request: FastifyRequest<{ Querystring: { limit?: string } }>,
  reply: FastifyReply
) {
  try {
    const limit = Math.min(Number(request.query.limit) || 100, 500); // 最大500条
    const data = await activityService.getLiveFeed(limit);
    return reply.send({
      success: true,
      data,
    });
  } catch (error: any) {
    logger.error('[StatsController] 获取流水账失败', { error: error.message });
    return reply.status(500).send({
      success: false,
      message: error.message || '获取流水账失败',
    });
  }
}

/**
 * 获取用户360画像
 * GET /api/admin/users/:id/overview
 */
export async function getUserOverview(
  request: FastifyRequest<{ Params: { id: string } }>,
  reply: FastifyReply
) {
  try {
    const { id } = request.params;
    
    if (!id) {
      return reply.status(400).send({
        success: false,
        message: '用户ID不能为空',
      });
    }

    const data = await activityService.getUserOverview(id);
    
    if (!data.profile) {
      return reply.status(404).send({
        success: false,
        message: '用户不存在',
      });
    }

    return reply.send({
      success: true,
      data,
    });
  } catch (error: any) {
    logger.error('[StatsController] 获取用户画像失败', { error: error.message });
    return reply.status(500).send({
      success: false,
      message: error.message || '获取用户画像失败',
    });
  }
}

/**
 * 分页查询运营日志
 * GET /api/admin/stats/logs
 * 
 * 查询参数:
 * - page: 页码 (默认1)
 * - pageSize: 每页条数 (默认20, 最大100)
 * - startDate: 开始日期 (YYYY-MM-DD)
 * - endDate: 结束日期 (YYYY-MM-DD)
 * - module: 模块筛选
 * - action: 动作筛选
 * - keyword: 关键词搜索 (用户名/租户名)
 */
export async function getActivityLogs(
  request: FastifyRequest<{
    Querystring: {
      page?: string;
      pageSize?: string;
      startDate?: string;
      endDate?: string;
      module?: string;
      action?: string;
      keyword?: string;
    }
  }>,
  reply: FastifyReply
) {
  try {
    const {
      page: pageStr,
      pageSize: pageSizeStr,
      startDate: startDateStr,
      endDate: endDateStr,
      module,
      action,
      keyword,
    } = request.query;

    // 解析分页参数
    const page = Math.max(1, Number(pageStr) || 1);
    const pageSize = Math.min(100, Math.max(1, Number(pageSizeStr) || 20));

    // 解析日期参数
    const startDate = startDateStr ? new Date(startDateStr) : undefined;
    const endDate = endDateStr ? new Date(endDateStr) : undefined;

    const result = await activityService.getActivityLogs({
      page,
      pageSize,
      startDate,
      endDate,
      module,
      action,
      keyword,
    });

    return reply.send({
      success: true,
      data: result.data,
      pagination: {
        page: result.page,
        pageSize: result.pageSize,
        total: result.total,
        totalPages: Math.ceil(result.total / result.pageSize),
      },
    });
  } catch (error: any) {
    logger.error('[StatsController] 获取运营日志失败', { error: error.message });
    return reply.status(500).send({
      success: false,
      message: error.message || '获取运营日志失败',
    });
  }
}

/**
 * 清理过期日志（管理接口）
 * POST /api/admin/stats/cleanup
 */
export async function cleanupLogs(
  request: FastifyRequest,
  reply: FastifyReply
) {
  try {
    const deletedCount = await activityService.cleanupOldLogs();
    return reply.send({
      success: true,
      data: {
        deletedCount,
        message: `已清理 ${deletedCount} 条过期日志`,
      },
    });
  } catch (error: any) {
    logger.error('[StatsController] 清理日志失败', { error: error.message });
    return reply.status(500).send({
      success: false,
      message: error.message || '清理日志失败',
    });
  }
}