using System.Collections.Generic;
using Godot;
using Learn.Models;

namespace Learn.Inspector;

public partial class ParsedInfoPanel : Tree
{
    private TreeNode _node;
	
	#region Columns Definitions
	private const int NotesColumn = 0;
	private const int KeyColumn = 1;
	private const int ValueColumn = 2;
	#endregion
	
	public override void _Ready()
	{
		Columns = 3;
		SetColumnTitlesVisible(true);
		
		SetColumnTitle(NotesColumn, "备注");
		SetColumnCustomMinimumWidth(NotesColumn, 80);
		SetColumnExpand(NotesColumn, false);
		
		SetColumnTitle(KeyColumn, "键");
		SetColumnCustomMinimumWidth(KeyColumn, 100);
		SetColumnExpand(KeyColumn, false);
		
		SetColumnTitle(ValueColumn, "值");
		SetColumnExpand(ValueColumn, true);
	}

	public void SetNode(TreeNode node)
	{
		_node = node;
		OnNodeChanged();
	}
	
	public void OnNodeChanged()
	{
		Clear();
		if (_node == null) return;
		
		var root = CreateItem();
		var keys = new HashSet<string>();
		var curr = _node;

		while (curr != null)
		{
			foreach (var kv in curr.Info.Info)
			{
				if(!keys.Add(kv.Key)) continue;
				var node = CreateItem(root);
				if (curr != _node)
				{
					node.SetText(NotesColumn, "（继承）");
				}
				node.SetText(KeyColumn, kv.Key);
				node.SetText(ValueColumn, kv.Value);
			}
			curr = curr.Parent;
		}
	}

}