From bd9dacf0566ca542ecab913acbc244f474c6a752 Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Tue, 1 Jun 2021 23:22:47 +0800
Subject: feat: Add ways to reset timeline or post color.

---
 .../Timeline/Models/Validation/ColorValidator.cs   | 34 ++++++++++++++++++++++
 BackEnd/Timeline/Models/Validation/Validator.cs    |  2 +-
 2 files changed, 35 insertions(+), 1 deletion(-)

(limited to 'BackEnd/Timeline/Models/Validation')

diff --git a/BackEnd/Timeline/Models/Validation/ColorValidator.cs b/BackEnd/Timeline/Models/Validation/ColorValidator.cs
index c5ad833d..4f7accc5 100644
--- a/BackEnd/Timeline/Models/Validation/ColorValidator.cs
+++ b/BackEnd/Timeline/Models/Validation/ColorValidator.cs
@@ -4,8 +4,22 @@ namespace Timeline.Models.Validation
 {
     public class ColorValidator : Validator<string>
     {
+        public bool PermitEmpty { get; set; } = false;
+        public bool PermitDefault { get; set; } = false;
+        public string DefaultValue { get; set; } = "default";
+
         protected override (bool, string) DoValidate(string value)
         {
+            if (PermitEmpty && value.Length == 0)
+            {
+                return (true, GetSuccessMessage());
+            }
+
+            if (PermitDefault && value == DefaultValue)
+            {
+                return (true, GetSuccessMessage());
+            }
+
             if (!value.StartsWith('#'))
             {
                 return (false, "Color must starts with '#'.");
@@ -32,9 +46,29 @@ namespace Timeline.Models.Validation
     [AttributeUsage(AttributeTargets.Property | AttributeTargets.Field | AttributeTargets.Parameter, AllowMultiple = false)]
     public class ColorAttribute : ValidateWithAttribute
     {
+        private ColorValidator Validator => (ColorValidator)_validator;
+
         public ColorAttribute() : base(typeof(ColorValidator))
         {
 
         }
+
+        public bool PermitEmpty
+        {
+            get => Validator.PermitEmpty;
+            set => Validator.PermitEmpty = value;
+        }
+
+        public bool PermitDefault
+        {
+            get => Validator.PermitDefault;
+            set => Validator.PermitDefault = value;
+        }
+
+        public string DefaultValue
+        {
+            get => Validator.DefaultValue;
+            set => Validator.DefaultValue = value;
+        }
     }
 }
diff --git a/BackEnd/Timeline/Models/Validation/Validator.cs b/BackEnd/Timeline/Models/Validation/Validator.cs
index d334960e..0e1f7445 100644
--- a/BackEnd/Timeline/Models/Validation/Validator.cs
+++ b/BackEnd/Timeline/Models/Validation/Validator.cs
@@ -77,7 +77,7 @@ namespace Timeline.Models.Validation
         AllowMultiple = false)]
     public class ValidateWithAttribute : ValidationAttribute
     {
-        private readonly IValidator _validator;
+        protected readonly IValidator _validator;
 
         /// <summary>
         /// Create with a given validator.
-- 
cgit v1.2.3