import type { NextApiRequest, NextApiResponse } from 'next'
import { supabase } from '../../../lib/supabase'

interface UserInfo {
  id: string
  email: string
  name: string
  phone?: string
  user_type: 'individual' | 'enterprise' | 'admin'
  status: 'active' | 'inactive' | 'suspended'
  enterprise_id?: string
  avatar_url?: string
  created_at: string
  updated_at: string
}

interface ApiResponse {
  success: boolean
  data?: UserInfo
  error?: string
}

export default async function handler(
  req: NextApiRequest,
  res: NextApiResponse<ApiResponse>
) {
  if (req.method !== 'GET') {
    return res.status(405).json({
      success: false,
      error: '方法不允许'
    })
  }

  try {
    // 获取授权头
    const authHeader = req.headers.authorization
    if (!authHeader || !authHeader.startsWith('Bearer ')) {
      return res.status(401).json({
        success: false,
        error: '未提供有效的授权令牌'
      })
    }

    const token = authHeader.substring(7) // 移除 'Bearer ' 前缀

    // 验证JWT令牌
    const { data: { user }, error: authError } = await supabase.auth.getUser(token)

    if (authError || !user) {
      return res.status(401).json({
        success: false,
        error: '无效的授权令牌'
      })
    }

    // 从数据库获取用户详细信息
    const { data: userProfile, error: profileError } = await supabase
      .from('users')
      .select('*')
      .eq('id', user.id)
      .single()

    if (profileError) {
      console.error('Error fetching user profile:', profileError)
      return res.status(404).json({
        success: false,
        error: '用户信息不存在'
      })
    }

    return res.status(200).json({
      success: true,
      data: userProfile
    })

  } catch (error) {
    console.error('Server error getting user info:', error)
    return res.status(500).json({
      success: false,
      error: process.env.NODE_ENV === 'development' 
        ? `服务器错误: ${error instanceof Error ? error.message : '未知错误'}`
        : '服务器内部错误'
    })
  }
}