feat: add user model

internal/model/user.go

@@ -0,0 +1,24 @@
+package model
+
+const (
+	GENERAL = iota
+	GUEST   // only one exists
+	ADMIN
+)
+
+type User struct {
+	ID          uint   `json:"id" gorm:"primaryKey"` // unique key
+	Name        string `json:"name" gorm:"unique"`   // username
+	Password    string `json:"password"`             // password
+	BasePath    string `json:"base_path"`            // base path
+	AllowUpload bool   `json:"allow_upload"`         // allow upload
+	Role        int    `json:"role"`                 // user's role
+}
+
+func (u User) IsGuest() bool {
+	return u.Role == GUEST
+}
+
+func (u User) IsAdmin() bool {
+	return u.Role == ADMIN
+}