Added Jobs and ProgressToken

Tranga/Jobs/JobBoss.cs

@@ -0,0 +1,70 @@
+using System.Runtime.CompilerServices;
+using Tranga.MangaConnectors;
+
+namespace Tranga.Jobs;
+
+public class JobBoss : GlobalBase
+{
+    private HashSet<Job> jobs { get; init; }
+    private Dictionary<MangaConnector, Queue<Job>> mangaConnectorJobQueue { get; init; }
+
+    public JobBoss(GlobalBase clone) : base(clone)
+    {
+        this.jobs = new();
+        this.mangaConnectorJobQueue = new();
+    }
+
+    public void MonitorJobs()
+    {
+        foreach (Job job in jobs.Where(job => job.nextExecution < DateTime.Now && !QueueContainsJob(job)).OrderBy(job => job.nextExecution))
+            AddJobToQueue(job);
+        CheckJobQueue();
+    }
+
+    public void AddJob(Job job)
+    {
+        this.jobs.Add(job);
+    }
+
+    public void RemoveJob(Job job)
+    {
+        job.Cancel();
+        this.jobs.Remove(job);
+    }
+
+    private bool QueueContainsJob(Job job)
+    {
+        mangaConnectorJobQueue.TryAdd(job.mangaConnector, new Queue<Job>());
+        return mangaConnectorJobQueue[job.mangaConnector].Contains(job);
+    }
+
+    private void AddJobToQueue(Job job)
+    {
+        Log($"Adding Job to Queue. {job}");
+        mangaConnectorJobQueue.TryAdd(job.mangaConnector, new Queue<Job>());
+        Queue<Job> connectorJobQueue = mangaConnectorJobQueue[job.mangaConnector];
+        if(!connectorJobQueue.Contains(job))
+            connectorJobQueue.Enqueue(job);
+    }
+
+    public void AddJobsToQueue(IEnumerable<Job> jobs)
+    {
+        foreach(Job job in jobs)
+            AddJobToQueue(job);
+    }
+
+    private void CheckJobQueue()
+    {
+        foreach (Queue<Job> jobQueue in mangaConnectorJobQueue.Values)
+        {
+            Job queueHead = jobQueue.Peek();
+            if (queueHead.progressToken.state == ProgressToken.State.Complete)
+            {
+                if(queueHead.recurring)
+                    queueHead.Reset();
+                jobQueue.Dequeue();
+                AddJobsToQueue(jobQueue.Peek().ExecuteReturnSubTasks());
+            }
+        }
+    }
+ }