25 lines
948 B
C#
25 lines
948 B
C#
using System;
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using System.Linq.Expressions;
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using ErsatzTV.Core;
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using LanguageExt;
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using static LanguageExt.Prelude;
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namespace ErsatzTV
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{
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public static partial class Validators
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{
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public static Func<Expression<Func<T, string>>, Validation<BaseError, string>> NotLongerThan<T>(
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this T input,
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int maxLength) =>
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expression => Optional(expression)
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.Map(exp => exp.Compile()(input))
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.Where(s => s.Length <= maxLength)
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.ToValidation<BaseError>($"[{GetMemberName(expression)}] must not be longer than {maxLength}");
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public static Validation<BaseError, string> NotEmpty<T>(this T input, Expression<Func<T, string>> expression) =>
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Optional(expression.Compile()(input))
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.Where(s => !string.IsNullOrWhiteSpace(s))
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.ToValidation<BaseError>($"[{GetMemberName(expression)}] is an empty string");
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}
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}
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