28 lines
1.3 KiB
C#
28 lines
1.3 KiB
C#
using DataLayer;
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Linq;
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namespace LibationSearchEngine;
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[DebuggerDisplay("Count = {rules.Count,nq}")]
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public class IndexRuleCollection : IEnumerable<IndexRule>
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{
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private readonly List<IndexRule> rules = new();
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public IEnumerable<string> IdFieldNames => rules.Where(x => x.FieldType is FieldType.ID).SelectMany(r => r.FieldNames);
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public IEnumerable<string> BoolFieldNames => rules.Where(x => x.FieldType is FieldType.Bool).SelectMany(r => r.FieldNames);
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public IEnumerable<string> StringFieldNames => rules.Where(x => x.FieldType is FieldType.String).SelectMany(r => r.FieldNames);
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public IEnumerable<string> NumberFieldNames => rules.Where(x => x.FieldType is FieldType.Number).SelectMany(r => r.FieldNames);
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public void Add(FieldType fieldType, Func<LibraryBook, string> getter, params string[] fieldNames)
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=> rules.Add(new IndexRule(fieldType, getter, fieldNames));
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public IndexRule GetRuleByFieldName(string fieldName)
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=> rules.SingleOrDefault(r => r.FieldNames.Any(n => n.Equals(fieldName, StringComparison.OrdinalIgnoreCase)));
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public IEnumerator<IndexRule> GetEnumerator() => rules.GetEnumerator();
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IEnumerator IEnumerable.GetEnumerator() => GetEnumerator();
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}
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