58 lines
1.3 KiB
C#
58 lines
1.3 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Linq.Expressions;
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using zero.Core.Entities;
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namespace zero.Core.Options
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{
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public class RoutingPageResolverOptions
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{
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HashSet<ResolverMap> Resolvers { get; set; } = new();
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class ResolverMap
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{
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public Type Type { get; set; }
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public Expression<Func<Page, bool>> Impl { get; set; }
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}
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public void Add<T>(Expression<Func<Page, bool>> resolver)
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{
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Resolvers.Add(new()
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{
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Type = typeof(T),
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Impl = resolver
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});
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}
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public void Replace<T>(Expression<Func<Page, bool>> resolver)
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{
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Remove<T>();
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Add<T>(resolver);
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}
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public void Remove<T>()
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{
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Type type = typeof(T);
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Resolvers.RemoveWhere(x => x.Type == type);
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}
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public Expression<Func<Page, bool>> Get<T>() => Get(typeof(T));
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public IEnumerable<Expression<Func<Page, bool>>> GetAll<T>() => GetAll(typeof(T));
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public Expression<Func<Page, bool>> Get(Type type)
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{
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ResolverMap map = Resolvers.LastOrDefault(x => x.Type == type);
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return map?.Impl;
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}
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public IEnumerable<Expression<Func<Page, bool>>> GetAll(Type type)
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{
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IEnumerable<ResolverMap> maps = Resolvers.Where(x => x.Type == type);
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return maps.Select(map => map.Impl).Where(x => x != null);
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}
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}
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}
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