Update remote soul-content with local content

lib/payment/wechat.tsx

@@ -0,0 +1,99 @@
+import crypto from "crypto"
+
+export interface WechatPayConfig {
+  appId: string
+  appSecret: string
+  mchId: string
+  apiKey: string
+  notifyUrl: string
+}
+
+export class WechatPayService {
+  constructor(private config: WechatPayConfig) {}
+
+  // 创建微信支付订单（扫码支付）
+  async createOrder(params: {
+    outTradeNo: string
+    body: string
+    totalFee: number
+    spbillCreateIp: string
+  }) {
+    const orderParams = {
+      appid: this.config.appId,
+      mch_id: this.config.mchId,
+      nonce_str: this.generateNonceStr(),
+      body: params.body,
+      out_trade_no: params.outTradeNo,
+      total_fee: Math.round(params.totalFee * 100).toString(), // 转换为分
+      spbill_create_ip: params.spbillCreateIp,
+      notify_url: this.config.notifyUrl,
+      trade_type: "NATIVE", // 扫码支付
+    }
+
+    const sign = this.generateSign(orderParams)
+    const xmlData = this.buildXML({ ...orderParams, sign })
+
+    // In production, make actual API call to WeChat
+    // const response = await fetch("https://api.mch.weixin.qq.com/pay/unifiedorder", {
+    //   method: "POST",
+    //   body: xmlData,
+    //   headers: { "Content-Type": "application/xml" },
+    // })
+
+    // Mock response for development
+    return {
+      codeUrl: `weixin://wxpay/bizpayurl?pr=${this.generateNonceStr()}`,
+      prepayId: `prepay_${Date.now()}`,
+      outTradeNo: params.outTradeNo,
+    }
+  }
+
+  // 生成随机字符串
+  private generateNonceStr(): string {
+    return crypto.randomBytes(16).toString("hex")
+  }
+
+  // 生成签名
+  generateSign(params: Record<string, string>): string {
+    const sortedKeys = Object.keys(params).sort()
+    const signString = sortedKeys
+      .filter((key) => params[key] && key !== "sign")
+      .map((key) => `${key}=${params[key]}`)
+      .join("&")
+
+    const signWithKey = `${signString}&key=${this.config.apiKey}`
+    return crypto.createHash("md5").update(signWithKey, "utf8").digest("hex").toUpperCase()
+  }
+
+  // 验证签名
+  verifySign(params: Record<string, string>): boolean {
+    const receivedSign = params.sign
+    if (!receivedSign) return false
+
+    const calculatedSign = this.generateSign(params)
+    return receivedSign === calculatedSign
+  }
+
+  // 构建XML数据
+  private buildXML(params: Record<string, string>): string {
+    const xml = ["<xml>"]
+    for (const [key, value] of Object.entries(params)) {
+      xml.push(`<${key}><![CDATA[${value}]]></${key}>`)
+    }
+    xml.push("</xml>")
+    return xml.join("")
+  }
+
+  // 解析XML数据
+  private async parseXML(xml: string): Promise<Record<string, string>> {
+    const result: Record<string, string> = {}
+    const regex = /<(\w+)><!\[CDATA\[(.*?)\]\]><\/\1>/g
+    let match
+
+    while ((match = regex.exec(xml)) !== null) {
+      result[match[1]] = match[2]
+    }
+
+    return result
+  }
+}