using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using BITKit;
using BITKit.IO;
using Godot;

namespace BITFactory;
[Serializable]
public class IDIS_Template
{
	public string TemplateName="标识注册模板";
	public string TemplateDescription="该模板通常用于xxx用途";
	public string IconPath="Register";
	public DateTime CreateTime=DateTime.Now;
	public DateTime UpdateTime=DateTime.Now;
	public List<(string format,string hint,string category)> Formats=new();
}
public partial class IDIS_TemplateService : Node
{
	private static string assetPath => PathHelper.GetPath("标识注册模板.zip");
	private const string templateName = $"{nameof(IDIS_Template)}.json";
	public readonly  List<IDIS_Template> templates=new();

	[ExportCategory("Quick Start")]
	[Export] private Button createButton;
	[Export] private Button newFormatButton;
	[Export] private NodeBuilder templateIndexBuilder;
	[Export] private NodeBuilder templateFormatBuilder;
	[Export] private LineEdit templateNameEdit;
	[Export] private LineEdit templateDescriptionEdit;
	[Export] private Label templateCreateTimeLabel;
	[Export] private Label templateUpdateTimeLabel;
	[ExportCategory("Template")]
	[Export] private PackedScene templateContainer;

	private bool isDirty;

	private IDIS_Template _selectedTemplate;
	public override void _Ready()
	{
		if (File.Exists(assetPath) is false)
		{
			BIT4Log.Log<IDIS_TemplateService>($"未找到配置文件:{assetPath}");
			Save();
		}
		var temp = BITAssets.Read<List<IDIS_Template>>(assetPath, templateName);
		
		templates.AddRange(temp);
		BIT4Log.Log<IDIS_TemplateService>($"已加载配置文件:{assetPath}");

		createButton.Pressed += CreateTemplate;
		newFormatButton.Pressed += CreateFormat;

		templateNameEdit.TextChanged += OnTemplateNameChanged;
		templateDescriptionEdit.TextChanged += OnTemplateDescriptionChanged;

		EnsureConfigure();
	}

	private void CreateFormat()
	{
		if (_selectedTemplate is null) return;
		_selectedTemplate.Formats ??= new();
		_selectedTemplate.Formats.Add(("新的数据格式","格式类型","数据类型"));
		_selectedTemplate.UpdateTime= DateTime.Now;
		EnsureConfigure();
	}

	public override void _ExitTree()
	{
		Save();
	}

	private void CreateTemplate()
	{
		templates.Add(new IDIS_Template()
		{
			TemplateName = "新的标识注册模板"
		});
		EnsureConfigure();
	}

	private void Save()
	{
		BITAssets.Build(assetPath,new IAsset[]
		{
			new BITAsset(templateName,JsonHelper.Get(templates))
		});
		BIT4Log.Log<IDIS_TemplateService>($"已创建配置文件:{assetPath}");
	}
	private void OnTemplateNameChanged(string text)
	{
		if (_selectedTemplate is null) return;
		_selectedTemplate.TemplateName = text;
		_selectedTemplate.UpdateTime= DateTime.Now;
	}
	private void OnTemplateDescriptionChanged(string text)
	{
		if (_selectedTemplate is null) return;
		_selectedTemplate.TemplateDescription = text;
		_selectedTemplate.UpdateTime= DateTime.Now;
	}

	private void EnsureConfigure()
	{
		templateIndexBuilder.Clear();
		templateFormatBuilder.Clear();

		foreach (var x in templates)
		{
			var _container = templateIndexBuilder.Build<UXContainer>();
			_container.button.Text = x.TemplateName;
			_container.button.Pressed += () =>
			{
				_selectedTemplate = x;
				EnsureConfigure();
			};
		}

		if (_selectedTemplate is null) return;

		templateNameEdit.Text = _selectedTemplate.TemplateName;
		templateDescriptionEdit.Text = _selectedTemplate.TemplateDescription;
		templateCreateTimeLabel.Text = _selectedTemplate.CreateTime.ToString(CultureInfo.InvariantCulture);
		templateUpdateTimeLabel.Text = _selectedTemplate.UpdateTime.ToString(CultureInfo.InvariantCulture);

		for (var i = 0; i < _selectedTemplate.Formats.Count; i++)
		{
			var x = _selectedTemplate.Formats[i];
			var _container = templateFormatBuilder.Build<UXContainer>();

			_container.lineEdits[0].Text = x.format;
			_container.lineEdits[1].Text = x.hint;
			_container.lineEdits[2].Text = x.category;

			var index = i;

			_container.lineEdits[0].TextChanged += (s) =>
			{
				var current = _selectedTemplate.Formats[index];
				current.format = s;
				_selectedTemplate.Formats[index] = current;
				_selectedTemplate.UpdateTime = DateTime.Now;
			};
			_container.lineEdits[1].TextChanged += s =>
			{
				var current = _selectedTemplate.Formats[index];
				current.hint = s;
				_selectedTemplate.Formats[index] = current;
			};
			_container.lineEdits[2].TextChanged += s =>
			{
				var current = _selectedTemplate.Formats[index];
				current.category = s;
				_selectedTemplate.Formats[index] = current;
			};
			_container.button.Pressed += () =>
			{
				_selectedTemplate.Formats.RemoveAt(index);
				EnsureConfigure();
			};
		}
	}
}