36 lines
1.3 KiB
C#
36 lines
1.3 KiB
C#
using System;
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namespace SharpChat.Config {
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public class CachedValue<T>(IConfig config, string name, TimeSpan lifetime, T fallback) {
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private IConfig Config { get; } = config ?? throw new ArgumentNullException(nameof(config));
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private string Name { get; } = name ?? throw new ArgumentNullException(nameof(name));
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private object ConfigAccess { get; } = new();
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private object CurrentValue { get; set; }
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private DateTimeOffset LastRead { get; set; }
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public T Value {
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get {
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lock(ConfigAccess) { // this lock doesn't really make sense since it doesn't affect other config calls
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DateTimeOffset now = DateTimeOffset.Now;
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if((now - LastRead) >= lifetime) {
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LastRead = now;
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CurrentValue = Config.ReadValue(Name, fallback);
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Logger.Debug($"Read {Name} ({CurrentValue})");
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}
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}
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return (T)CurrentValue;
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}
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}
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public static implicit operator T(CachedValue<T> val) => val.Value;
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public void Refresh() {
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LastRead = DateTimeOffset.MinValue;
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}
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public override string ToString() {
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return Value.ToString();
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}
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}
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}
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