feat: backend core - auth, user, role, permission, device, webhook, monitoring, cache, repository, service, middleware, API handlers

pkg/errors/errors.go

@@ -0,0 +1,48 @@
+package errors
+
+import (
+	"errors"
+	"fmt"
+)
+
+var (
+	// 用户相关错误
+	ErrUserNotFound      = errors.New("用户不存在")
+	ErrUsernameExists     = errors.New("用户名已存在")
+	ErrEmailExists        = errors.New("邮箱已存在")
+	ErrPhoneExists        = errors.New("手机号已存在")
+	ErrInvalidCredentials = errors.New("用户名或密码错误")
+	ErrAccountLocked      = errors.New("账号已被锁定")
+	ErrAccountDisabled    = errors.New("账号已被禁用")
+	ErrInvalidOldPassword = errors.New("原密码错误")
+
+	// 角色相关错误
+	ErrRoleNotFound          = errors.New("角色不存在")
+	ErrRoleCodeExists       = errors.New("角色代码已存在")
+	ErrCannotModifySystemRole = errors.New("不能修改系统角色")
+	ErrCannotDeleteSystemRole = errors.New("不能删除系统角色")
+	ErrRoleInUse            = errors.New("角色正在使用中")
+
+	// 权限相关错误
+	ErrPermissionNotFound   = errors.New("权限不存在")
+	ErrPermissionCodeExists = errors.New("权限代码已存在")
+
+	// 通用错误
+	ErrInvalidParams  = errors.New("参数错误")
+	ErrUnauthorized   = errors.New("未授权")
+	ErrForbidden      = errors.New("无权限")
+	ErrInternalServerError = errors.New("服务器内部错误")
+)
+
+// NewError 创建新错误
+func NewError(msg string) error {
+	return errors.New(msg)
+}
+
+// WrapError 包装错误
+func WrapError(err error, msg string) error {
+	if err == nil {
+		return nil
+	}
+	return fmt.Errorf("%s: %w", msg, err)
+}

pkg/response/response.go

@@ -0,0 +1,50 @@
+package response
+
+import (
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+)
+
+// Response 统一响应结构
+type Response struct {
+	Code    int         `json:"code"`
+	Message string      `json:"message"`
+	Data    interface{} `json:"data,omitempty"`
+}
+
+// Success 成功响应
+func Success(c *gin.Context, data interface{}) {
+	c.JSON(http.StatusOK, Response{
+		Code:    0,
+		Message: "success",
+		Data:    data,
+	})
+}
+
+// Error 错误响应
+func Error(c *gin.Context, httpStatus int, message string, err error) {
+	if err != nil {
+		// 在开发环境下返回详细错误信息
+		if gin.Mode() == gin.DebugMode {
+			c.JSON(httpStatus, Response{
+				Code:    httpStatus,
+				Message: message,
+				Data:    err.Error(),
+			})
+			return
+		}
+	}
+	c.JSON(httpStatus, Response{
+		Code:    httpStatus,
+		Message: message,
+	})
+}
+
+// ErrorWithCode 错误响应（带自定义错误码）
+func ErrorWithCode(c *gin.Context, code int, message string) {
+	c.JSON(http.StatusOK, Response{
+		Code:    code,
+		Message: message,
+	})
+}