/**
 * 测试推广配置读取和佣金计算
 * 用于验证配置值是否正确
 */

const mysql = require('mysql2/promise')

const DB_CONFIG = {
  host: 'gz-cynosdbmysql-grp-kfcvxbby.sql.tencentcdb.com',
  port: 27815,
  user: 'root',
  password: 'Aa112211',
  database: 'soul_miniprogram',
  charset: 'utf8mb4'
}

async function testConfig() {
  let connection
  
  try {
    console.log('=' .repeat(60))
    console.log('推广配置测试')
    console.log('=' .repeat(60))
    console.log()
    
    // 1. 连接数据库
    console.log('步骤 1: 连接数据库...')
    connection = await mysql.createConnection(DB_CONFIG)
    console.log('✅ 已连接到数据库:', DB_CONFIG.database)
    console.log()
    
    // 2. 读取配置
    console.log('步骤 2: 读取推广配置...')
    console.log('-' .repeat(60))
    
    const [configRows] = await connection.execute(
      `SELECT config_key, config_value FROM system_config WHERE config_key = 'referral_config'`
    )
    
    if (configRows.length === 0) {
      console.log('⚠️  数据库中没有 referral_config，使用默认值')
      console.log()
      console.log('默认配置:')
      console.log('  distributorShare: 90 (90%)')
      console.log('  minWithdrawAmount: 10')
      console.log('  bindingDays: 30')
      console.log('  userDiscount: 5')
      console.log()
    } else {
      const configValue = configRows[0].config_value
      let config
      
      try {
        config = typeof configValue === 'string' ? JSON.parse(configValue) : configValue
      } catch (e) {
        console.error('❌ 配置解析失败:', e.message)
        return
      }
      
      console.log('✅ 读取到的配置:')
      console.log('  distributorShare:', config.distributorShare, `(${config.distributorShare}%)`)
      console.log('  minWithdrawAmount:', config.minWithdrawAmount, '元')
      console.log('  bindingDays:', config.bindingDays, '天')
      console.log('  userDiscount:', config.userDiscount, `(${config.userDiscount}%)`)
      console.log('  enableAutoWithdraw:', config.enableAutoWithdraw)
      console.log()
      
      // 3. 测试佣金计算
      console.log('步骤 3: 测试佣金计算...')
      console.log('-' .repeat(60))
      
      const distributorShareRate = config.distributorShare / 100
      console.log('分成比例（计算用）:', distributorShareRate)
      console.log()
      
      // 测试用例
      const testCases = [
        { amount: 1.00, desc: '购买1元商品' },
        { amount: 0.95, desc: '购买1元商品（5%折扣后）' },
        { amount: 9.90, desc: '购买全书9.9元' }
      ]
      
      console.log('佣金计算结果:')
      testCases.forEach(test => {
        const commission = Math.round(test.amount * distributorShareRate * 100) / 100
        console.log(`  ${test.desc}:`)
        console.log(`    支付金额: ¥${test.amount.toFixed(2)}`)
        console.log(`    推荐人佣金: ¥${commission.toFixed(2)} (${(distributorShareRate * 100).toFixed(0)}%)`)
        console.log()
      })
      
      // 4. 验证返回给小程序的值
      console.log('步骤 4: 验证返回给小程序的值...')
      console.log('-' .repeat(60))
      
      const shareRate = Math.round(distributorShareRate * 100)
      console.log('返回给小程序的 shareRate:', shareRate, '%')
      console.log('小程序显示:', `"你获得 ${shareRate}% 收益"`)
      console.log()
      
      // 5. 检查是否有异常
      console.log('步骤 5: 检查配置合理性...')
      console.log('-' .repeat(60))
      
      const issues = []
      
      if (config.distributorShare < 0 || config.distributorShare > 100) {
        issues.push(`❌ distributorShare 不在有效范围: ${config.distributorShare}`)
      }
      if (config.distributorShare < 50) {
        issues.push(`⚠️  distributorShare 偏低: ${config.distributorShare}% (通常应该 >= 50%)`)
      }
      if (config.distributorShare === 10) {
        issues.push(`❌ distributorShare = 10% 可能是配置错误！应该是 90%`)
      }
      if (config.minWithdrawAmount < 0) {
        issues.push(`❌ minWithdrawAmount 不能为负数: ${config.minWithdrawAmount}`)
      }
      if (config.bindingDays < 1) {
        issues.push(`❌ bindingDays 至少为1天: ${config.bindingDays}`)
      }
      
      if (issues.length > 0) {
        console.log('发现问题:')
        issues.forEach(issue => console.log('  ' + issue))
      } else {
        console.log('✅ 所有配置值都在合理范围内')
      }
      console.log()
    }
    
    console.log('=' .repeat(60))
    console.log('测试完成')
    console.log('=' .repeat(60))
    
  } catch (error) {
    console.error('测试失败:', error)
  } finally {
    if (connection) {
      await connection.end()
    }
  }
}

testConfig()