using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using UniversalEditor.ObjectModels.Markup;

namespace UniversalEditor
{
	public class ProjectTask
	{
		public class ProjectTaskCollection
			: System.Collections.ObjectModel.Collection<ProjectTask>
		{

		}

		public event EventHandler TaskStarted;
		public event ProjectTaskEventHandler TaskCompleted;
		public event ProjectTaskEventHandler TaskFailed;
		public event ProgressEventHandler TaskProgress;

		protected virtual void OnTaskStarted(EventArgs e)
		{
			if (TaskStarted != null) TaskStarted(this, e);
		}
		protected virtual void OnTaskCompleted(ProjectTaskEventArgs e)
		{
			if (TaskCompleted != null) TaskCompleted(this, e);
		}
		protected virtual void OnTaskFailed(ProjectTaskEventArgs e)
		{
			if (TaskFailed != null) TaskFailed(this, e);
		}
		protected virtual void OnTaskProgress(ProgressEventArgs e)
		{
			if (TaskProgress != null) TaskProgress(this, e);
		}

		private ProjectTaskAction.ProjectTaskActionCollection mvarActions = new ProjectTaskAction.ProjectTaskActionCollection();
		public ProjectTaskAction.ProjectTaskActionCollection Actions { get { return mvarActions; } }
		
		private string mvarTitle = String.Empty;
		public string Title { get { return mvarTitle; } set { mvarTitle = value; } }

		public void Execute()
		{
			OnTaskStarted(EventArgs.Empty);

			ExpandedStringVariableStore variables = new ExpandedStringVariableStore();
			ExpandedStringVariable varr = new ExpandedStringVariable();
			varr.ID = "CompilerExecutablePath";
			varr.Value = @"C:\Applications\MinGW\bin\gcc.exe";
			variables.Variables[ExpandedStringSegmentVariableScope.Global, "CompilerExecutablePath"] = varr;

			varr = new ExpandedStringVariable();
			varr.ID = "OutputFileName";
			varr.Value = @"C:\Temp\ProjectOutput.exe";
			variables.Variables[ExpandedStringSegmentVariableScope.Project, "OutputFileName"] = varr;

			for (int i = 0; i < mvarActions.Count; i++)
			{
				try
				{
					mvarActions[i].Execute(variables);
				}
				catch (Exception ex)
				{
					OnTaskFailed(new ProjectTaskEventArgs(ex.Message));
					return;
				}

				OnTaskProgress(new ProgressEventArgs(i, mvarActions.Count, mvarActions[i].Title));
			}
		}
	}
}