// src/lib/monitor/wechat-pusher.ts
import type { MonitorConfig } from './types'
import { formatBeijingTime } from './types'

const logger = {
  info: (msg: string) => console.log(`[Worker] ${formatBeijingTime()} INFO ${msg}`),
  error: (msg: string) => console.error(`[Worker] ${formatBeijingTime()} ERROR ${msg}`),
}

export class WeChatPusher {
  async pushText(text: string, webhookUrl: string): Promise<boolean> {
    if (!webhookUrl) { logger.error('Webhook URL not configured'); return false }
    try {
      const response = await fetch(webhookUrl, {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({ msgtype: 'text', text: { content: text } }),
        signal: AbortSignal.timeout(5_000),
      })
      if (!response.ok) { logger.error(`Webhook HTTP ${response.status}`); return false }
      const result = await response.json() as { errcode?: number; errmsg?: string }
      if (result.errcode === 0) { logger.info('WeChat message sent'); return true }
      logger.error(`WeChat error: ${result.errmsg}`)
      return false
    } catch (e) {
      logger.error(`Webhook failed: ${e instanceof Error ? e.message : e}`)
      return false
    }
  }

  formatAvailabilityMessage(
    deadlines: Record<string, { deadline: string; hours: number }>,
    faultInfo: { server_ip: string | null; server_sn: string | null; fault_time: string | null },
    isOemDiag: boolean,
    oemDeadline: string | null,
    orderNumber: string | null,
    rackPosition: string | null,
    faultDetail: string | null,
  ): string {
    let msg = ''
    const typeLabel = isOemDiag ? 'OEM诊断' : 'OEM维修'
    msg += `【服务器故障单】 - ${typeLabel}\n\n`
    if (orderNumber) msg += `工单号：${orderNumber}\n`
    msg += `服务器IP：${faultInfo.server_ip || '未知'}\n`
    msg += `服务器SN：${faultInfo.server_sn || '未知'}\n`
    msg += `机架位置：${rackPosition || '未知'}\n`
    if (faultInfo.fault_time) msg += `故障时间：${faultInfo.fault_time}\n`
    if (faultDetail) msg += `故障信息：${faultDetail}\n`

    if (isOemDiag && oemDeadline) {
      msg += `到期时间：${oemDeadline}\n`
    } else if (!isOemDiag) {
      msg += '\n📊 服务可用性各档位截止时间：\n\n'
      const tierDesc: Record<string, string> = {
        '第一档': '99%（含）以上（不扣费）',
        '第二档': '99%-97%（含）（扣10%）',
        '第三档': '97%-95%（含）（扣25%）',
        '第四档': '95%-90%（含）（扣50%）',
        '第五档': '90%（不含）以下（扣100%）',
      }
      const emojis = ['1️⃣', '2️⃣', '3️⃣', '4️⃣', '5️⃣']
      let i = 0
      for (const [tier, desc] of Object.entries(tierDesc)) {
        const d = deadlines[tier]
        if (d) {
          msg += `${emojis[i]} ${desc}\n`
          msg += `   截止时间：${d.deadline}`
          if (d.hours > 0) msg += `（${d.hours}小时）`
          msg += '\n\n'
        }
        i++
      }
    }
    return msg.trim()
  }
}