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/*
* Copyright (c) 2024 Vaughn Nugent
*
* Library: VNLib
* Package: VNLib.Plugins.Extensions.Loading
* File: ConfigScope.cs
*
* ConfigScope.cs is part of VNLib.Plugins.Extensions.Loading which is part of the larger
* VNLib collection of libraries and utilities.
*
* VNLib.Plugins.Extensions.Loading is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* VNLib.Plugins.Extensions.Loading is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see https://www.gnu.org/licenses/.
*/
using System;
using System.Linq;
using System.Text.Json;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using VNLib.Utils.Resources;
namespace VNLib.Plugins.Extensions.Loading
{
internal sealed class ConfigScope: IConfigScope
{
private readonly LazyInitializer<IReadOnlyDictionary<string, JsonElement>> _config;
private readonly JsonElement _element;
internal ConfigScope(JsonElement element, string scopeName)
{
_element = element;
ScopeName = scopeName;
_config = new(LoadTable);
}
private IReadOnlyDictionary<string, JsonElement> LoadTable()
{
return _element.EnumerateObject()
.ToDictionary(
static k => k.Name,
static k => k.Value
);
}
///<inheritdoc/>
public JsonElement this[string key] => _config.Instance[key];
///<inheritdoc/>
public IEnumerable<string> Keys => _config.Instance.Keys;
///<inheritdoc/>
public IEnumerable<JsonElement> Values => _config.Instance.Values;
///<inheritdoc/>
public int Count => _config.Instance.Count;
///<inheritdoc/>
public string ScopeName { get; }
///<inheritdoc/>
public bool ContainsKey(string key) => _config.Instance.ContainsKey(key);
///<inheritdoc/>
public T Deserialze<T>() => _element.Deserialize<T>()!;
///<inheritdoc/>
public IEnumerator<KeyValuePair<string, JsonElement>> GetEnumerator() => _config.Instance.GetEnumerator();
///<inheritdoc/>
public bool TryGetValue(string key, [MaybeNullWhen(false)] out JsonElement value) => _config.Instance.TryGetValue(key, out value);
IEnumerator IEnumerable.GetEnumerator() => _config.Instance.GetEnumerator();
}
}
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