x

internal/errors/errors.go

@@ -0,0 +1,85 @@
+package errors
+
+import (
+	"fmt"
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+)
+
+// 定义错误类型常量
+const (
+	ErrTypeDatabase   = "database"
+	ErrTypeWeChat     = "wechat"
+	ErrTypeHTTP       = "http"
+	ErrTypeConfig     = "config"
+	ErrTypeInvalidArg = "invalid_argument"
+)
+
+// AppError 表示应用程序错误
+type AppError struct {
+	Type    string `json:"type"`    // 错误类型
+	Message string `json:"message"` // 错误消息
+	Cause   error  `json:"-"`       // 原始错误
+	Code    int    `json:"-"`       // HTTP Code
+}
+
+func (e *AppError) Error() string {
+	if e.Cause != nil {
+		return fmt.Sprintf("%s: %s: %v", e.Type, e.Message, e.Cause)
+	}
+	return fmt.Sprintf("%s: %s", e.Type, e.Message)
+}
+
+func (e *AppError) String() string {
+	return e.Error()
+}
+
+// New 创建新的应用错误
+func New(errType, message string, cause error, code int) *AppError {
+	return &AppError{
+		Type:    errType,
+		Message: message,
+		Cause:   cause,
+		Code:    code,
+	}
+}
+
+// ErrInvalidArg 无效参数错误
+func ErrInvalidArg(param string) *AppError {
+	return New(ErrTypeInvalidArg, fmt.Sprintf("invalid arg: %s", param), nil, http.StatusBadRequest)
+}
+
+// Database 创建数据库错误
+func Database(message string, cause error) *AppError {
+	return New(ErrTypeDatabase, message, cause, http.StatusInternalServerError)
+}
+
+// WeChat 创建微信相关错误
+func WeChat(message string, cause error) *AppError {
+	return New(ErrTypeWeChat, message, cause, http.StatusInternalServerError)
+}
+
+// HTTP 创建HTTP服务错误
+func HTTP(message string, cause error) *AppError {
+	return New(ErrTypeHTTP, message, cause, http.StatusInternalServerError)
+}
+
+// Config 创建配置错误
+func Config(message string, cause error) *AppError {
+	return New(ErrTypeConfig, message, cause, http.StatusInternalServerError)
+}
+
+// Err 在HTTP响应中返回错误
+func Err(c *gin.Context, err error) {
+	if appErr, ok := err.(*AppError); ok {
+		c.JSON(appErr.Code, appErr)
+		return
+	}
+
+	// 未知错误
+	c.JSON(http.StatusInternalServerError, gin.H{
+		"type":    "unknown",
+		"message": err.Error(),
+	})
+}