using Cryville.Common.Unity;
using Cryville.Crtr.Browsing.Actions;
using Cryville.Crtr.Config.UI;
using System.Collections.Generic;
using UnityEngine;

namespace Cryville.Crtr.Browsing.UI {
	public class ResourceBrowserMaster : SingletonBehaviour<ResourceBrowserMaster> {
		[SerializeField]
		ConfigPanelMaster m_configPanel;
		[SerializeField]
		Transform m_tabContainer;
		[SerializeField]
		GameObject m_tabPrefab;
		[SerializeField]
		Transform m_browserContainer;
		[SerializeField]
		GameObject m_pathedBrowserPrefab;
		[SerializeField]
		SettingsBrowser m_settingsBrowser;

		BrowserTab _currentTab;
		readonly Dictionary<BrowserTab, ResourceBrowser> _tabs = new Dictionary<BrowserTab, ResourceBrowser>();

		public ActionManager Actions { get; private set; }

		protected override void Awake() {
			Actions = new ActionManager();
			Actions.Register(new PlayChartAction());

			OnTabClicked(AddPathedBrowserTab("Local", new LegacyResourceManager(Settings.Default.GameDataPath)));
			AddPathedBrowserTab("Files", new FileSystemResourceManager());
			AddTab("Settings", m_settingsBrowser);
		}

		BrowserTab AddPathedBrowserTab(string name, IPathedResourceManager<IResourceMeta> manager) {
			var browser = Instantiate(m_pathedBrowserPrefab, m_browserContainer, false).GetComponent<PathedResourceBrowser>();
			browser.Init(this, manager);
			return AddTab(name, browser);
		}

		BrowserTab AddTab(string name, ResourceBrowser browser) {
			var tab = Instantiate(m_tabPrefab, m_tabContainer, false).GetComponent<BrowserTab>();
			tab.Icon = browser.Icon;
			tab.Text = name;
			tab.Clicked += OnTabClicked;
			browser.gameObject.SetActive(false);
			_tabs.Add(tab, browser);
			return tab;
		}

		void OnTabClicked(BrowserTab tab) {
			if (tab == _currentTab) return;
			if (_currentTab != null) {
				_currentTab.Selected = false;
				_tabs[_currentTab].gameObject.SetActive(false);
			}
			_currentTab = tab;
			if (_currentTab != null) {
				_currentTab.Selected = true;
				_tabs[_currentTab].gameObject.SetActive(true);
			}
		}

		public bool Back() {
			return true; // TODO
		}
	}
}