[hw-8] add: comment service

comments/internal/domain/model/comment.go

@@ -1,22 +0,0 @@
-package model
-
-import (
-	"fmt"
-	"time"
-)
-
-type Comment struct {
-	ID        int64 `validate:"gt=0"`
-	UserID    int64 `validate:"gt=0"`
-	SKU       int64 `validate:"gt=0"`
-	CreatedAt time.Time
-	Text      string `validate:"lte=255,gt=0"`
-}
-
-func (c *Comment) Validate() error {
-	if err := validate.Struct(c); err != nil {
-		return fmt.Errorf("invalid requested values: %w", err)
-	}
-
-	return nil
-}

comments/internal/domain/model/errors.go

@@ -3,3 +3,5 @@ package model
 import "errors"
 
 var ErrCommentNotFound = errors.New("comment not found")
+var ErrCommentEditUserMismatch = errors.New("comment edit user mismatch")
+var ErrCommentEditTimeout = errors.New("comment edit timeout")

comments/internal/domain/model/validate.go

@@ -1,9 +0,0 @@
-package model
-
-import "github.com/go-playground/validator/v10"
-
-var validate *validator.Validate
-
-func init() {
-	validate = validator.New()
-}