120 lines
3.9 KiB
C#
120 lines
3.9 KiB
C#
using System.Text.Json.Serialization;
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using Logging;
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using Newtonsoft.Json;
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using Newtonsoft.Json.Linq;
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using Tranga.TrangaTasks;
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using JsonConverter = Newtonsoft.Json.JsonConverter;
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namespace Tranga;
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/// <summary>
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/// Stores information on Task, when implementing new Tasks also update the serializer
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/// </summary>
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[JsonDerivedType(typeof(DownloadNewChaptersTask), 2)]
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[JsonDerivedType(typeof(UpdateLibrariesTask), 3)]
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[JsonDerivedType(typeof(DownloadChapterTask), 4)]
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public abstract class TrangaTask
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{
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// ReSharper disable once CommentTypo ...Tell me why!
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// ReSharper disable once MemberCanBePrivate.Global I want it thaaat way
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public TimeSpan reoccurrence { get; }
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public DateTime lastExecuted { get; set; }
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public Task task { get; }
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[Newtonsoft.Json.JsonIgnore]public ExecutionState state { get; set; }
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[Newtonsoft.Json.JsonIgnore]public float progress { get; protected set; }
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[Newtonsoft.Json.JsonIgnore]public DateTime nextExecution => lastExecuted.Add(reoccurrence);
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public enum ExecutionState
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{
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Waiting,
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Enqueued,
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Running
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};
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protected TrangaTask(Task task, TimeSpan reoccurrence)
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{
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this.reoccurrence = reoccurrence;
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this.lastExecuted = DateTime.Now.Subtract(reoccurrence);
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this.task = task;
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this.progress = 0f;
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}
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public float IncrementProgress(float amount)
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{
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this.progress += amount;
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return this.progress;
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}
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/// <summary>
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/// BL for concrete Tasks
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/// </summary>
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/// <param name="taskManager"></param>
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/// <param name="logger"></param>
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protected abstract void ExecuteTask(TaskManager taskManager, Logger? logger);
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/// <summary>
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/// Execute the task
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/// </summary>
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/// <param name="taskManager">Should be the parent taskManager</param>
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/// <param name="logger"></param>
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public void Execute(TaskManager taskManager, Logger? logger)
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{
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logger?.WriteLine(this.GetType().ToString(), $"Executing Task {this}");
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this.state = ExecutionState.Running;
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ExecuteTask(taskManager, logger);
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this.lastExecuted = DateTime.Now;
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this.state = ExecutionState.Waiting;
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logger?.WriteLine(this.GetType().ToString(), $"Finished Executing Task {this}");
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}
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/// <returns>True if elapsed time since last execution is greater than set interval</returns>
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public bool ShouldExecute()
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{
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return nextExecution < DateTime.Now && state is ExecutionState.Waiting;
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}
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public enum Task : byte
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{
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DownloadNewChapters = 2,
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UpdateLibraries = 3,
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DownloadChapter = 4
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}
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public override string ToString()
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{
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return $"{task}, {lastExecuted}, {reoccurrence}, {state}, {progress:P2}";
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}
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public class TrangaTaskJsonConverter : JsonConverter
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{
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public override bool CanConvert(Type objectType)
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{
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return (objectType == typeof(TrangaTask));
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}
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public override object ReadJson(JsonReader reader, Type objectType, object? existingValue, JsonSerializer serializer)
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{
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JObject jo = JObject.Load(reader);
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if (jo["task"]!.Value<Int64>() == (Int64)Task.DownloadNewChapters)
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return jo.ToObject<DownloadNewChaptersTask>(serializer)!;
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if (jo["task"]!.Value<Int64>() == (Int64)Task.UpdateLibraries)
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return jo.ToObject<UpdateLibrariesTask>(serializer)!;
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if (jo["task"]!.Value<Int64>() == (Int64)Task.DownloadChapter)
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return jo.ToObject<DownloadChapterTask>(serializer)!;
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throw new Exception();
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}
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public override bool CanWrite => false;
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/// <summary>
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/// Don't call this
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/// </summary>
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public override void WriteJson(JsonWriter writer, object? value, JsonSerializer serializer)
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{
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throw new Exception("Dont call this");
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}
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}
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} |