From ac769e656b122ff569c3f1534701b71e00fed586 Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Tue, 27 Oct 2020 19:21:35 +0800
Subject: Split front and back end.

---
 Timeline/Models/Validation/Validator.cs | 127 --------------------------------
 1 file changed, 127 deletions(-)
 delete mode 100644 Timeline/Models/Validation/Validator.cs

(limited to 'Timeline/Models/Validation/Validator.cs')

diff --git a/Timeline/Models/Validation/Validator.cs b/Timeline/Models/Validation/Validator.cs
deleted file mode 100644
index aef7891c..00000000
--- a/Timeline/Models/Validation/Validator.cs
+++ /dev/null
@@ -1,127 +0,0 @@
-using System;
-using System.ComponentModel.DataAnnotations;
-using static Timeline.Resources.Models.Validation.Validator;
-
-namespace Timeline.Models.Validation
-{
-    /// <summary>
-    /// A validator to validate value.
-    /// </summary>
-    public interface IValidator
-    {
-        /// <summary>
-        /// Validate given value.
-        /// </summary>
-        /// <param name="value">The value to validate.</param>
-        /// <returns>Validation success or not and message.</returns>
-        (bool, string) Validate(object? value);
-    }
-
-    public static class ValidatorExtensions
-    {
-        public static bool Validate(this IValidator validator, object? value, out string message)
-        {
-            if (validator == null)
-                throw new ArgumentNullException(nameof(validator));
-
-            var (r, m) = validator.Validate(value);
-            message = m;
-            return r;
-        }
-    }
-
-    /// <summary>
-    /// Convenient base class for validator.
-    /// </summary>
-    /// <typeparam name="T">The type of accepted value.</typeparam>
-    /// <remarks>
-    /// Subclass should override <see cref="DoValidate(T)"/> to do the real validation.
-    /// This class will check the nullity and type of value.
-    /// If value is null, it will pass or fail depending on <see cref="PermitNull"/>.
-    /// If value is not null and not of type <typeparamref name="T"/>
-    /// it will fail and not call <see cref="DoValidate(T)"/>.
-    /// 
-    /// <see cref="PermitNull"/> is true by default.
-    /// 
-    /// If you want some other behaviours, write the validator from scratch.
-    /// </remarks>
-    public abstract class Validator<T> : IValidator
-    {
-        protected bool PermitNull { get; set; } = true;
-
-        public (bool, string) Validate(object? value)
-        {
-            if (value == null)
-            {
-                if (PermitNull)
-                    return (true, GetSuccessMessage());
-                else
-                    return (false, ValidatorMessageNull);
-            }
-
-            if (value is T v)
-            {
-                return DoValidate(v);
-            }
-            else
-            {
-                return (false, ValidatorMessageBadType);
-            }
-        }
-
-        protected static string GetSuccessMessage() => ValidatorMessageSuccess;
-
-        protected abstract (bool, string) DoValidate(T value);
-    }
-
-    [AttributeUsage(AttributeTargets.Property | AttributeTargets.Field | AttributeTargets.Parameter,
-        AllowMultiple = false)]
-    public class ValidateWithAttribute : ValidationAttribute
-    {
-        private readonly IValidator _validator;
-
-        /// <summary>
-        /// Create with a given validator.
-        /// </summary>
-        /// <param name="validator">The validator used to validate.</param>
-        public ValidateWithAttribute(IValidator validator)
-        {
-            _validator = validator ?? throw new ArgumentNullException(nameof(validator));
-        }
-
-        /// <summary>
-        /// Create the validator with default constructor.
-        /// </summary>
-        /// <param name="validatorType">The type of the validator.</param>
-        public ValidateWithAttribute(Type validatorType)
-        {
-            if (validatorType == null)
-                throw new ArgumentNullException(nameof(validatorType));
-
-            if (!typeof(IValidator).IsAssignableFrom(validatorType))
-                throw new ArgumentException(ValidateWithAttributeExceptionNotValidator, nameof(validatorType));
-
-            try
-            {
-                _validator = (Activator.CreateInstance(validatorType) as IValidator)!;
-            }
-            catch (Exception e)
-            {
-                throw new ArgumentException(ValidateWithAttributeExceptionCreateFail, e);
-            }
-        }
-
-        protected override ValidationResult IsValid(object value, ValidationContext validationContext)
-        {
-            var (result, message) = _validator.Validate(value);
-            if (result)
-            {
-                return ValidationResult.Success;
-            }
-            else
-            {
-                return new ValidationResult(message);
-            }
-        }
-    }
-}
-- 
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