feat: 公众号服务新增 GetJSSDKConfig 方法及 JSSDK 配置 DTO

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

pkg/wechat/official_account.go

@@ -8,6 +8,37 @@ import (
 	"go.uber.org/zap"
 )
 
+// GetJSSDKConfig 获取 JSSDK 签名配置
+// url 为当前页面完整 URL（含协议和路径，不含 # 及其后内容）
+func (s *OfficialAccountService) GetJSSDKConfig(ctx context.Context, url string) (*JSSDKConfig, error) {
+	if url == "" {
+		return nil, errors.New(errors.CodeInvalidParam, "页面 URL 不能为空")
+	}
+
+	signMap, err := s.app.JSSDK.ConfigSignature(ctx, url, "", 0)
+	if err != nil {
+		s.logger.Error("获取 JSSDK 签名失败", zap.String("url", url), zap.Error(err))
+		return nil, errors.Wrap(errors.CodeInternalError, err, "获取 JSSDK 签名失败")
+	}
+
+	appID, _ := (*signMap)["appId"].(string)
+	nonceStr, _ := (*signMap)["nonceStr"].(string)
+	timestamp, _ := (*signMap)["timestamp"].(int64)
+	signature, _ := (*signMap)["signature"].(string)
+
+	s.logger.Debug("获取 JSSDK 签名配置成功",
+		zap.String("app_id", appID),
+		zap.String("url", url),
+	)
+
+	return &JSSDKConfig{
+		AppID:     appID,
+		Timestamp: timestamp,
+		NonceStr:  nonceStr,
+		Signature: signature,
+	}, nil
+}
+
 // OfficialAccountService 微信公众号服务实现
 type OfficialAccountService struct {
 	app    *officialAccount.OfficialAccount