import { Router } from 'express'
import pool from '../db/connection'
import { requireAdmin } from '../middleware/requireAdmin'

const router = Router()

/** 获取公开配置（经过全局 authMiddleware，无需管理员权限） */
router.get('/', async (_req, res) => {
  try {
    const [rows] = await pool.execute('SELECT config_key, config_value FROM sys_config')
    const config: Record<string, string> = {}
    for (const row of rows as any[]) {
      config[row.config_key] = row.config_value
    }
    res.json({ code: 0, data: config })
  } catch (error) {
    console.error('Get config error:', error)
    res.status(500).json({ code: 50000, message: '获取配置失败' })
  }
})

/** 更新配置（管理员权限） */
router.put('/', requireAdmin, async (req, res) => {
  try {
    const data = req.body
    if (!data || typeof data !== 'object') {
      return res.status(400).json({ code: 40001, message: '无效的配置数据' })
    }

    // 批量更新配置
    for (const [key, value] of Object.entries(data)) {
      await pool.query(
        'INSERT INTO sys_config (config_key, config_value) VALUES (?, ?) ON DUPLICATE KEY UPDATE config_value = ?',
        [key, value, value]
      )
    }

    res.json({ code: 0 })
  } catch (error) {
    console.error('Update config error:', error)
    res.status(500).json({ code: 50000, message: '更新配置失败' })
  }
})

export default router