import { type NextRequest, NextResponse } from "next/server"
import crypto from "crypto"

// 存客宝API配置
const CKB_API_KEY = process.env.CKB_API_KEY || "fyngh-ecy9h-qkdae-epwd5-rz6kd"
const CKB_API_URL = "https://ckbapi.quwanzhi.com/v1/api/scenarios"

// 生成签名 - 根据文档实现
function generateSign(params: Record<string, any>, apiKey: string): string {
  // 1. 移除 sign、apiKey、portrait 字段
  const filteredParams = { ...params }
  delete filteredParams.sign
  delete filteredParams.apiKey
  delete filteredParams.portrait

  // 2. 移除空值字段
  const nonEmptyParams: Record<string, any> = {}
  for (const [key, value] of Object.entries(filteredParams)) {
    if (value !== null && value !== "") {
      nonEmptyParams[key] = value
    }
  }

  // 3. 按参数名升序排序
  const sortedKeys = Object.keys(nonEmptyParams).sort()

  // 4. 拼接参数值
  const stringToSign = sortedKeys.map(key => nonEmptyParams[key]).join("")

  // 5. 第一次 MD5
  const firstMd5 = crypto.createHash("md5").update(stringToSign).digest("hex")

  // 6. 拼接 apiKey 再次 MD5
  const sign = crypto.createHash("md5").update(firstMd5 + apiKey).digest("hex")

  return sign
}

// 不同类型对应的source标签
const sourceMap: Record<string, string> = {
  team: "团队招募",
  investor: "资源对接",
  mentor: "导师顾问",
  partner: "创业合伙",
}

const tagsMap: Record<string, string> = {
  team: "切片团队,团队招募",
  investor: "资源对接,资源群",
  mentor: "导师顾问,咨询服务",
  partner: "创业合伙,创业伙伴",
}

export async function POST(request: NextRequest) {
  try {
    const body = await request.json()
    const { type, phone, wechat, name, userId, remark } = body

    // 验证必填参数 - 手机号或微信号至少一个
    if (!phone && !wechat) {
      return NextResponse.json({ success: false, message: "请提供手机号或微信号" }, { status: 400 })
    }

    // 验证类型
    if (!["team", "investor", "mentor", "partner"].includes(type)) {
      return NextResponse.json({ success: false, message: "无效的加入类型" }, { status: 400 })
    }

    // 生成时间戳（秒级）
    const timestamp = Math.floor(Date.now() / 1000)

    // 构建请求参数（不包含sign）
    const requestParams: Record<string, any> = {
      timestamp,
      source: `创业实验-${sourceMap[type]}`,
      tags: tagsMap[type],
      siteTags: "创业实验APP",
      remark: remark || `用户通过创业实验APP申请${sourceMap[type]}`,
    }

    // 添加可选字段
    if (phone) requestParams.phone = phone
    if (wechat) requestParams.wechatId = wechat
    if (name) requestParams.name = name

    // 生成签名
    const sign = generateSign(requestParams, CKB_API_KEY)

    // 构建最终请求体
    const requestBody = {
      ...requestParams,
      apiKey: CKB_API_KEY,
      sign,
      portrait: {
        type: 4, // 互动行为
        source: 0, // 本站
        sourceData: {
          joinType: type,
          joinLabel: sourceMap[type],
          userId: userId || "",
          device: "webapp",
          timestamp: new Date().toISOString(),
        },
        remark: `${sourceMap[type]}申请`,
        uniqueId: `soul_${phone || wechat}_${timestamp}`,
      },
    }

    // 调用存客宝API
    const response = await fetch(CKB_API_URL, {
      method: "POST",
      headers: {
        "Content-Type": "application/json",
      },
      body: JSON.stringify(requestBody),
    })

    const result = await response.json()

    if (result.code === 200) {
      return NextResponse.json({
        success: true,
        message: result.message === "已存在" ? "您已加入，我们会尽快联系您" : `成功加入${sourceMap[type]}`,
        data: result.data,
      })
    } else {
      console.error("CKB API Error:", result)
      return NextResponse.json({
        success: false,
        message: result.message || "加入失败，请稍后重试",
      })
    }
  } catch (error) {
    console.error("存客宝API调用失败:", error)
    return NextResponse.json({ success: false, message: "服务器错误，请稍后重试" }, { status: 500 })
  }
}