716 lines
21 KiB
Go
716 lines
21 KiB
Go
package handler
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import (
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"encoding/json"
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"fmt"
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"io"
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"net/http"
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"strconv"
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"strings"
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"time"
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"soul-api/internal/database"
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"soul-api/internal/model"
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"soul-api/internal/wechat"
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"github.com/gin-gonic/gin"
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"gorm.io/gorm"
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)
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// MiniprogramLogin POST /api/miniprogram/login
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func MiniprogramLogin(c *gin.Context) {
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var req struct {
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Code string `json:"code" binding:"required"`
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}
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if err := c.ShouldBindJSON(&req); err != nil {
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c.JSON(http.StatusBadRequest, gin.H{"success": false, "error": "缺少登录code"})
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return
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}
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// 调用微信接口获取 openid 和 session_key
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openID, sessionKey, _, err := wechat.Code2Session(req.Code)
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if err != nil {
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c.JSON(http.StatusBadRequest, gin.H{"success": false, "error": fmt.Sprintf("微信登录失败: %v", err)})
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return
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}
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db := database.DB()
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// 查询用户是否存在
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var user model.User
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result := db.Where("open_id = ?", openID).First(&user)
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isNewUser := result.Error != nil
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if isNewUser {
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// 创建新用户
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userID := openID // 直接使用 openid 作为用户 ID
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referralCode := "SOUL" + strings.ToUpper(openID[len(openID)-6:])
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nickname := "微信用户" + openID[len(openID)-4:]
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avatar := ""
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hasFullBook := false
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earnings := 0.0
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pendingEarnings := 0.0
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referralCount := 0
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purchasedSections := "[]"
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user = model.User{
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ID: userID,
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OpenID: &openID,
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SessionKey: &sessionKey,
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Nickname: &nickname,
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Avatar: &avatar,
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ReferralCode: &referralCode,
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HasFullBook: &hasFullBook,
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PurchasedSections: &purchasedSections,
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Earnings: &earnings,
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PendingEarnings: &pendingEarnings,
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ReferralCount: &referralCount,
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}
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if err := db.Create(&user).Error; err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"success": false, "error": "创建用户失败"})
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return
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}
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} else {
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// 更新 session_key
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db.Model(&user).Update("session_key", sessionKey)
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}
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// 从 orders 表查询真实购买记录（Pluck 替代 Raw）
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var purchasedSections []string
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db.Model(&model.Order{}).Where("user_id = ? AND status = ? AND product_type = ?", user.ID, "paid", "section").
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Distinct("product_id").Pluck("product_id", &purchasedSections)
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// 过滤空字符串
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filtered := make([]string, 0, len(purchasedSections))
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for _, s := range purchasedSections {
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if s != "" {
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filtered = append(filtered, s)
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}
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}
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purchasedSections = filtered
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// 构建返回的用户对象
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responseUser := map[string]interface{}{
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"id": user.ID,
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"openId": getStringValue(user.OpenID),
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"nickname": getStringValue(user.Nickname),
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"avatar": getStringValue(user.Avatar),
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"phone": getStringValue(user.Phone),
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"wechatId": getStringValue(user.WechatID),
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"referralCode": getStringValue(user.ReferralCode),
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"hasFullBook": getBoolValue(user.HasFullBook),
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"purchasedSections": purchasedSections,
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"earnings": getFloatValue(user.Earnings),
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"pendingEarnings": getFloatValue(user.PendingEarnings),
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"referralCount": getIntValue(user.ReferralCount),
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"createdAt": user.CreatedAt,
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}
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// 生成 token
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token := fmt.Sprintf("tk_%s_%d", openID[len(openID)-8:], time.Now().Unix())
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c.JSON(http.StatusOK, gin.H{
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"success": true,
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"data": map[string]interface{}{
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"openId": openID,
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"user": responseUser,
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"token": token,
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},
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"isNewUser": isNewUser,
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})
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}
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// 辅助函数
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func getStringValue(ptr *string) string {
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if ptr == nil {
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return ""
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}
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return *ptr
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}
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func getBoolValue(ptr *bool) bool {
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if ptr == nil {
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return false
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}
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return *ptr
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}
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func getFloatValue(ptr *float64) float64 {
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if ptr == nil {
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return 0.0
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}
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return *ptr
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}
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func getIntValue(ptr *int) int {
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if ptr == nil {
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return 0
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}
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return *ptr
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}
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// MiniprogramPay GET/POST /api/miniprogram/pay
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func MiniprogramPay(c *gin.Context) {
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if c.Request.Method == "POST" {
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miniprogramPayPost(c)
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} else {
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miniprogramPayGet(c)
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}
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}
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// POST - 创建小程序支付订单
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func miniprogramPayPost(c *gin.Context) {
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var req struct {
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OpenID string `json:"openId" binding:"required"`
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ProductType string `json:"productType" binding:"required"`
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ProductID string `json:"productId"`
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Amount float64 `json:"amount" binding:"required,gte=0"`
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Description string `json:"description"`
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UserID string `json:"userId"`
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ReferralCode string `json:"referralCode"`
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}
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if err := c.ShouldBindJSON(&req); err != nil {
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c.JSON(http.StatusBadRequest, gin.H{"success": false, "error": "缺少openId参数，请先登录"})
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return
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}
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if req.Amount <= 0 {
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c.JSON(http.StatusBadRequest, gin.H{"success": false, "error": "支付金额无效"})
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return
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}
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db := database.DB()
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// 查询用户的有效推荐人（先查 binding，再查 referralCode）
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var referrerID *string
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if req.UserID != "" {
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var refID string
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err := db.Model(&model.ReferralBinding{}).Where("referee_id = ? AND status = ? AND expiry_date > ?", req.UserID, "active", time.Now()).
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Order("binding_date DESC").Limit(1).Pluck("referrer_id", &refID).Error
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if err == nil && refID != "" {
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referrerID = &refID
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}
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}
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if referrerID == nil && req.ReferralCode != "" {
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var refUser model.User
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if err := db.Where("referral_code = ?", req.ReferralCode).First(&refUser).Error; err == nil {
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referrerID = &refUser.ID
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}
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}
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// 有推荐人时应用好友优惠（无论是 binding 还是 referralCode）
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finalAmount := req.Amount
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if referrerID != nil {
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var cfg model.SystemConfig
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if err := db.Where("config_key = ?", "referral_config").First(&cfg).Error; err == nil {
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var config map[string]interface{}
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if err := json.Unmarshal(cfg.ConfigValue, &config); err == nil {
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if userDiscount, ok := config["userDiscount"].(float64); ok && userDiscount > 0 {
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discountRate := userDiscount / 100
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finalAmount = req.Amount * (1 - discountRate)
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if finalAmount < 0.01 {
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finalAmount = 0.01
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}
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}
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}
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}
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}
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// 生成订单号
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orderSn := wechat.GenerateOrderSn()
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totalFee := int(finalAmount * 100) // 转为分
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description := req.Description
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if description == "" {
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if req.ProductType == "fullbook" {
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description = "《一场Soul的创业实验》全书"
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} else if req.ProductType == "match" {
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description = "购买匹配次数"
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} else {
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description = fmt.Sprintf("章节购买-%s", req.ProductID)
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}
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}
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// 获取客户端 IP
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clientIP := c.ClientIP()
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if clientIP == "" {
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clientIP = "127.0.0.1"
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}
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// 插入订单到数据库
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userID := req.UserID
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if userID == "" {
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userID = req.OpenID
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}
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productID := req.ProductID
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if productID == "" {
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productID = "fullbook"
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}
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status := "created"
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order := model.Order{
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ID: orderSn,
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OrderSN: orderSn,
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UserID: userID,
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OpenID: req.OpenID,
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ProductType: req.ProductType,
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ProductID: &productID,
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Amount: finalAmount,
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Description: &description,
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Status: &status,
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ReferrerID: referrerID,
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ReferralCode: &req.ReferralCode,
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}
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if err := db.Create(&order).Error; err != nil {
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// 订单创建失败，但不中断支付流程
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fmt.Printf("[MiniprogramPay] 插入订单失败: %v\n", err)
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}
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attach := fmt.Sprintf(`{"productType":"%s","productId":"%s","userId":"%s"}`, req.ProductType, req.ProductID, userID)
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ctx := c.Request.Context()
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prepayID, err := wechat.PayJSAPIOrder(ctx, req.OpenID, orderSn, totalFee, description, attach)
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if err != nil {
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c.JSON(http.StatusOK, gin.H{"success": false, "error": fmt.Sprintf("微信支付请求失败: %v", err)})
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return
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}
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payParams, err := wechat.GetJSAPIPayParams(prepayID)
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if err != nil {
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c.JSON(http.StatusOK, gin.H{"success": false, "error": fmt.Sprintf("生成支付参数失败: %v", err)})
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return
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}
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c.JSON(http.StatusOK, gin.H{
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"success": true,
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"data": map[string]interface{}{
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"orderSn": orderSn,
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"prepayId": prepayID,
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"payParams": payParams,
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},
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})
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}
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// GET - 查询订单状态（并主动同步：若微信已支付但本地未标记，则更新本地订单，便于配额即时生效）
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func miniprogramPayGet(c *gin.Context) {
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orderSn := c.Query("orderSn")
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if orderSn == "" {
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c.JSON(http.StatusBadRequest, gin.H{"success": false, "error": "缺少订单号"})
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return
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}
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ctx := c.Request.Context()
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tradeState, transactionID, totalFee, err := wechat.QueryOrderByOutTradeNo(ctx, orderSn)
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if err != nil {
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c.JSON(http.StatusOK, gin.H{
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"success": true,
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"data": map[string]interface{}{
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"status": "unknown",
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"orderSn": orderSn,
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},
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})
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return
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}
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status := "paying"
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switch tradeState {
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case "SUCCESS":
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status = "paid"
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// 若微信已支付，主动同步到本地 orders（不等 PayNotify），便于购买次数即时生效
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db := database.DB()
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var order model.Order
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if err := db.Where("order_sn = ?", orderSn).First(&order).Error; err == nil && order.Status != nil && *order.Status != "paid" {
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now := time.Now()
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db.Model(&order).Updates(map[string]interface{}{
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"status": "paid",
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"transaction_id": transactionID,
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"pay_time": now,
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})
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fmt.Printf("[PayGet] 主动同步订单已支付: %s\n", orderSn)
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}
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case "CLOSED", "REVOKED", "PAYERROR":
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status = "failed"
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case "REFUND":
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status = "refunded"
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}
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c.JSON(http.StatusOK, gin.H{
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"success": true,
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"data": map[string]interface{}{
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"status": status,
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"orderSn": orderSn,
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"transactionId": transactionID,
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"totalFee": totalFee,
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},
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})
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}
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// MiniprogramPayNotify POST /api/miniprogram/pay/notify（v3 支付回调，PowerWeChat 验签解密）
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func MiniprogramPayNotify(c *gin.Context) {
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resp, err := wechat.HandlePayNotify(c.Request, func(orderSn, transactionID string, totalFee int, attachStr, openID string) error {
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totalAmount := float64(totalFee) / 100
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fmt.Printf("[PayNotify] 支付成功: orderSn=%s, transactionId=%s, amount=%.2f\n", orderSn, transactionID, totalAmount)
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var attach struct {
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ProductType string `json:"productType"`
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ProductID string `json:"productId"`
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UserID string `json:"userId"`
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}
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if attachStr != "" {
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_ = json.Unmarshal([]byte(attachStr), &attach)
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}
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db := database.DB()
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return db.Transaction(func(tx *gorm.DB) error {
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buyerUserID := attach.UserID
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if openID != "" {
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var user model.User
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if err := tx.Where("open_id = ?", openID).First(&user).Error; err == nil {
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if attach.UserID != "" && user.ID != attach.UserID {
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fmt.Printf("[PayNotify] 买家身份校验: attach.userId 与 openId 解析不一致，以 openId 为准\n")
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}
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buyerUserID = user.ID
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}
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}
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if buyerUserID == "" && attach.UserID != "" {
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buyerUserID = attach.UserID
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}
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var order model.Order
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result := tx.Where("order_sn = ?", orderSn).First(&order)
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if result.Error != nil {
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fmt.Printf("[PayNotify] 订单不存在，补记订单: %s\n", orderSn)
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productID := attach.ProductID
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if productID == "" {
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productID = "fullbook"
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}
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productType := attach.ProductType
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if productType == "" {
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productType = "unknown"
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}
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desc := "支付回调补记订单"
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status := "paid"
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now := time.Now()
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order = model.Order{
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ID: orderSn,
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OrderSN: orderSn,
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UserID: buyerUserID,
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OpenID: openID,
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ProductType: productType,
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ProductID: &productID,
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Amount: totalAmount,
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Description: &desc,
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Status: &status,
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TransactionID: &transactionID,
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PayTime: &now,
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}
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if err := tx.Create(&order).Error; err != nil {
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fmt.Printf("[PayNotify] 补记订单失败: %s, err=%v\n", orderSn, err)
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return fmt.Errorf("create order: %w", err)
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}
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} else if *order.Status != "paid" {
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status := "paid"
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now := time.Now()
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if err := tx.Model(&order).Updates(map[string]interface{}{
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"status": status,
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"transaction_id": transactionID,
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"pay_time": now,
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}).Error; err != nil {
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fmt.Printf("[PayNotify] 更新订单状态失败: %s, err=%v\n", orderSn, err)
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return fmt.Errorf("update order: %w", err)
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}
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fmt.Printf("[PayNotify] 订单状态已更新为已支付: %s\n", orderSn)
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} else {
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fmt.Printf("[PayNotify] 订单已支付，跳过更新: %s\n", orderSn)
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}
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if buyerUserID != "" && attach.ProductType != "" {
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if attach.ProductType == "fullbook" {
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tx.Model(&model.User{}).Where("id = ?", buyerUserID).Update("has_full_book", true)
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fmt.Printf("[PayNotify] 用户已购全书: %s\n", buyerUserID)
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} else if attach.ProductType == "match" {
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fmt.Printf("[PayNotify] 用户购买匹配次数: %s，订单 %s\n", buyerUserID, orderSn)
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} else if attach.ProductType == "section" && attach.ProductID != "" {
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var count int64
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tx.Model(&model.Order{}).Where(
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"user_id = ? AND product_type = 'section' AND product_id = ? AND status = 'paid' AND order_sn != ?",
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buyerUserID, attach.ProductID, orderSn,
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).Count(&count)
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if count == 0 {
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fmt.Printf("[PayNotify] 用户首次购买章节: %s - %s\n", buyerUserID, attach.ProductID)
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} else {
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fmt.Printf("[PayNotify] 用户已有该章节的其他已支付订单: %s - %s\n", buyerUserID, attach.ProductID)
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}
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}
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productID := attach.ProductID
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if productID == "" {
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productID = "fullbook"
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}
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tx.Where(
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"user_id = ? AND product_type = ? AND product_id = ? AND status = 'created' AND order_sn != ?",
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buyerUserID, attach.ProductType, productID, orderSn,
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).Delete(&model.Order{})
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processReferralCommission(tx, buyerUserID, totalAmount, orderSn, &order)
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}
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return nil
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})
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})
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if err != nil {
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fmt.Printf("[PayNotify] 处理回调失败: %v\n", err)
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c.String(http.StatusOK, failResponse())
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return
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}
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defer resp.Body.Close()
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for k, v := range resp.Header {
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if len(v) > 0 {
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c.Header(k, v[0])
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}
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}
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c.Status(resp.StatusCode)
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io.Copy(c.Writer, resp.Body)
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}
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// 处理分销佣金
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// amount 为实付金额（若有好友优惠则已打折）；order 用于判断是否有推荐人从而反推原价
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func processReferralCommission(db *gorm.DB, buyerUserID string, amount float64, orderSn string, order *model.Order) {
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// 获取分成配置，默认 90%；好友优惠用于反推原价（佣金按原价计算）
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distributorShare := 0.9
|
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userDiscount := 0.0
|
||
var cfg model.SystemConfig
|
||
if err := db.Where("config_key = ?", "referral_config").First(&cfg).Error; err == nil {
|
||
var config map[string]interface{}
|
||
if err := json.Unmarshal(cfg.ConfigValue, &config); err == nil {
|
||
if share, ok := config["distributorShare"].(float64); ok {
|
||
distributorShare = share / 100
|
||
}
|
||
if disc, ok := config["userDiscount"].(float64); ok {
|
||
userDiscount = disc / 100
|
||
}
|
||
}
|
||
}
|
||
// 佣金按原价计算：若有推荐人则实付已打折，反推原价 = amount / (1 - userDiscount)
|
||
commissionBase := amount
|
||
if order != nil && userDiscount > 0 && (order.ReferrerID != nil && *order.ReferrerID != "" || order.ReferralCode != nil && *order.ReferralCode != "") {
|
||
if (1 - userDiscount) > 0 {
|
||
commissionBase = amount / (1 - userDiscount)
|
||
}
|
||
}
|
||
|
||
// 查找有效推广绑定（GORM 替代 Raw）
|
||
var binding model.ReferralBinding
|
||
err := db.Where("referee_id = ? AND status = ?", buyerUserID, "active").Order("binding_date DESC").First(&binding).Error
|
||
if err != nil {
|
||
fmt.Printf("[PayNotify] 用户无有效推广绑定，跳过分佣: %s\n", buyerUserID)
|
||
return
|
||
}
|
||
|
||
// 检查是否过期
|
||
if time.Now().After(binding.ExpiryDate) {
|
||
fmt.Printf("[PayNotify] 绑定已过期，跳过分佣: %s\n", buyerUserID)
|
||
return
|
||
}
|
||
|
||
// 计算佣金（按原价）
|
||
commission := commissionBase * distributorShare
|
||
purchaseCount := 0
|
||
if binding.PurchaseCount != nil {
|
||
purchaseCount = *binding.PurchaseCount
|
||
}
|
||
totalCommission := 0.0
|
||
if binding.TotalCommission != nil {
|
||
totalCommission = *binding.TotalCommission
|
||
}
|
||
newPurchaseCount := purchaseCount + 1
|
||
newTotalCommission := totalCommission + commission
|
||
|
||
fmt.Printf("[PayNotify] 处理分佣: referrerId=%s, amount=%.2f, commission=%.2f, shareRate=%.0f%%\n",
|
||
binding.ReferrerID, amount, commission, distributorShare*100)
|
||
|
||
// 更新推广者的待结算收益
|
||
db.Model(&model.User{}).Where("id = ?", binding.ReferrerID).
|
||
Update("pending_earnings", gorm.Expr("COALESCE(pending_earnings, 0) + ?", commission))
|
||
|
||
// 更新绑定记录（COALESCE 避免 total_commission 为 NULL 时 NULL+?=NULL）
|
||
db.Model(&model.ReferralBinding{}).Where("id = ?", binding.ID).Updates(map[string]interface{}{
|
||
"last_purchase_date": time.Now(),
|
||
"purchase_count": gorm.Expr("COALESCE(purchase_count, 0) + 1"),
|
||
"total_commission": gorm.Expr("COALESCE(total_commission, 0) + ?", commission),
|
||
})
|
||
|
||
fmt.Printf("[PayNotify] 分佣完成: 推广者 %s 获得 %.2f 元（第 %d 次购买，累计 %.2f 元）\n",
|
||
binding.ReferrerID, commission, newPurchaseCount, newTotalCommission)
|
||
}
|
||
|
||
// 微信支付回调响应
|
||
func successResponse() string {
|
||
return `<xml><return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[OK]]></return_msg></xml>`
|
||
}
|
||
|
||
func failResponse() string {
|
||
return `<xml><return_code><![CDATA[FAIL]]></return_code><return_msg><![CDATA[ERROR]]></return_msg></xml>`
|
||
}
|
||
|
||
// MiniprogramPhone POST /api/miniprogram/phone
|
||
func MiniprogramPhone(c *gin.Context) {
|
||
var req struct {
|
||
Code string `json:"code" binding:"required"`
|
||
UserID string `json:"userId"`
|
||
}
|
||
|
||
if err := c.ShouldBindJSON(&req); err != nil {
|
||
c.JSON(http.StatusBadRequest, gin.H{"success": false, "message": "缺少code参数"})
|
||
return
|
||
}
|
||
|
||
// 获取手机号
|
||
phoneNumber, countryCode, err := wechat.GetPhoneNumber(req.Code)
|
||
if err != nil {
|
||
c.JSON(http.StatusInternalServerError, gin.H{
|
||
"success": false,
|
||
"message": "获取手机号失败",
|
||
"error": err.Error(),
|
||
})
|
||
return
|
||
}
|
||
|
||
// 如果提供了 userId，更新到数据库
|
||
if req.UserID != "" {
|
||
db := database.DB()
|
||
db.Model(&model.User{}).Where("id = ?", req.UserID).Update("phone", phoneNumber)
|
||
fmt.Printf("[MiniprogramPhone] 手机号已绑定到用户: %s\n", req.UserID)
|
||
}
|
||
|
||
c.JSON(http.StatusOK, gin.H{
|
||
"success": true,
|
||
"phoneNumber": phoneNumber,
|
||
"countryCode": countryCode,
|
||
})
|
||
}
|
||
|
||
// MiniprogramQrcode POST /api/miniprogram/qrcode
|
||
func MiniprogramQrcode(c *gin.Context) {
|
||
var req struct {
|
||
Scene string `json:"scene"`
|
||
Page string `json:"page"`
|
||
Width int `json:"width"`
|
||
ChapterID string `json:"chapterId"`
|
||
UserID string `json:"userId"`
|
||
}
|
||
|
||
if err := c.ShouldBindJSON(&req); err != nil {
|
||
c.JSON(http.StatusBadRequest, gin.H{"success": false, "error": "参数错误"})
|
||
return
|
||
}
|
||
|
||
// 构建 scene 参数
|
||
scene := req.Scene
|
||
if scene == "" {
|
||
var parts []string
|
||
if req.UserID != "" {
|
||
userId := req.UserID
|
||
if len(userId) > 15 {
|
||
userId = userId[:15]
|
||
}
|
||
parts = append(parts, fmt.Sprintf("ref=%s", userId))
|
||
}
|
||
if req.ChapterID != "" {
|
||
parts = append(parts, fmt.Sprintf("ch=%s", req.ChapterID))
|
||
}
|
||
if len(parts) == 0 {
|
||
scene = "soul"
|
||
} else {
|
||
scene = strings.Join(parts, "&")
|
||
}
|
||
}
|
||
|
||
page := req.Page
|
||
if page == "" {
|
||
page = "pages/index/index"
|
||
}
|
||
|
||
width := req.Width
|
||
if width == 0 {
|
||
width = 280
|
||
}
|
||
|
||
fmt.Printf("[MiniprogramQrcode] 生成小程序码, scene=%s\n", scene)
|
||
|
||
// 生成小程序码
|
||
imageData, err := wechat.GenerateMiniProgramCode(scene, page, width)
|
||
if err != nil {
|
||
c.JSON(http.StatusOK, gin.H{
|
||
"success": false,
|
||
"error": fmt.Sprintf("生成小程序码失败: %v", err),
|
||
})
|
||
return
|
||
}
|
||
|
||
// 转换为 base64
|
||
base64Image := fmt.Sprintf("data:image/png;base64,%s", base64Encode(imageData))
|
||
|
||
c.JSON(http.StatusOK, gin.H{
|
||
"success": true,
|
||
"image": base64Image,
|
||
"scene": scene,
|
||
})
|
||
}
|
||
|
||
// MiniprogramQrcodeImage GET /api/miniprogram/qrcode/image?scene=xxx&page=xxx&width=280
|
||
// 直接返回 image/png，供小程序 wx.downloadFile 使用，便于开发工具与真机统一用 tempFilePath 绘制
|
||
func MiniprogramQrcodeImage(c *gin.Context) {
|
||
scene := c.Query("scene")
|
||
if scene == "" {
|
||
scene = "soul"
|
||
}
|
||
page := c.DefaultQuery("page", "pages/read/read")
|
||
width, _ := strconv.Atoi(c.DefaultQuery("width", "280"))
|
||
if width <= 0 {
|
||
width = 280
|
||
}
|
||
imageData, err := wechat.GenerateMiniProgramCode(scene, page, width)
|
||
if err != nil {
|
||
c.JSON(http.StatusBadRequest, gin.H{
|
||
"success": false,
|
||
"error": fmt.Sprintf("生成小程序码失败: %v", err),
|
||
})
|
||
return
|
||
}
|
||
c.Header("Content-Type", "image/png")
|
||
c.Data(http.StatusOK, "image/png", imageData)
|
||
}
|
||
|
||
// base64 编码
|
||
func base64Encode(data []byte) string {
|
||
const base64Table = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"
|
||
var result strings.Builder
|
||
|
||
for i := 0; i < len(data); i += 3 {
|
||
b1, b2, b3 := data[i], byte(0), byte(0)
|
||
if i+1 < len(data) {
|
||
b2 = data[i+1]
|
||
}
|
||
if i+2 < len(data) {
|
||
b3 = data[i+2]
|
||
}
|
||
|
||
result.WriteByte(base64Table[b1>>2])
|
||
result.WriteByte(base64Table[((b1&0x03)<<4)|(b2>>4)])
|
||
|
||
if i+1 < len(data) {
|
||
result.WriteByte(base64Table[((b2&0x0F)<<2)|(b3>>6)])
|
||
} else {
|
||
result.WriteByte('=')
|
||
}
|
||
|
||
if i+2 < len(data) {
|
||
result.WriteByte(base64Table[b3&0x3F])
|
||
} else {
|
||
result.WriteByte('=')
|
||
}
|
||
}
|
||
|
||
return result.String()
|
||
}
|