using Godot;
using System;

[Tool]
public partial class AdventureResourceInspector : Node
{
	const int ORDERED = 0;
	const int EVENTS = 1;
	private PackedScene zombieEditorScene = ResourceLoader.Load<PackedScene>("uid://db5ah76l43ng2");

	private Tree tree;
	private AdventureLevelResource heldResource;
	private TreeItem root;
	private Texture2D deleteTexture = ResourceLoader.Load<Texture2D>("res://addons/pvzadventure/icons/delete.png");

	[Signal]
	public delegate void RefreshedEventHandler();

	[Export]
	public Control editorContainer;

	public override void _Ready()
	{
		tree = GetNode<Tree>("Tree");
	}

	public void Refresh(AdventureLevelResource resource)
	{
		heldResource = resource;
		RefreshTree();
	}

	private void RefreshTree()
	{
		tree.Clear();
		root = tree.CreateItem();
		root.DisableFolding = true;
		root.SetText(0, "Level");
		EmitSignal(SignalName.Refreshed);

		for (int i = 0; i < heldResource.waves.Count; i++)
		{
			var item = tree.CreateItem(root);
			item.DisableFolding = true;
			item.SetText(0, string.Format("Wave {0}", i));
			item.AddButton(0, deleteTexture, tooltipText: "Removes wave. (note that number will not visibly change)");

			var order = tree.CreateItem(item);
			order.SetText(0, "Zombies");

			var spawns = tree.CreateItem(item);
			spawns.SetText(0, "Events");
		}
	}

	public void OnNewButtonPressed()
	{
		var wave = new WaveData();
		heldResource.waves.Add(wave);
		RefreshTree();
	}

	public void OnItemSelected()
	{
		foreach (var child in editorContainer.GetChildren())
		{
			child.QueueFree();
		}

		var selected = tree.GetSelected();
		if (selected == root)
		{
			GD.Print("level pressed");

		}
		else
		{
			if (selected.GetParent() == root) return;

			var index = selected.GetIndex();
			if (index == ORDERED)
			{
				var editor = zombieEditorScene.Instantiate<ZombieEditor>();

				editorContainer.AddChild(editor);
				editor.SetEditedWave(heldResource.waves[int.Parse(selected.GetParent().GetText(0).Split(" ")[1])]);
			}
			else if (index == EVENTS)
			{
				GD.Print("Events pressed");
			}
		}
	}

	public void OnTreeButtonClicked(TreeItem item, int column, int id, int button_index)
	{
		heldResource.waves.RemoveAt(item.GetIndex());
		RefreshTree();
	}
}