using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using TMPro;
using Sirenix.OdinInspector;
using KairoEngine.UI.Tooltips;
using KairoEngine.UI.InteractionHandler;

namespace KairoEngine.UI
{
    [HideMonoScript]
    public class ColumnMenuUI : MenuUI
    {
        
        [BoxGroup("Settings"), OnInspectorInit("EditorSetup")] public GameObject subMenuPrefab;
        [BoxGroup("Settings")] public GameObject subMenuButtonPrefab;
        [BoxGroup("Settings")] public RectTransform subMenusParent;
        [BoxGroup("Settings")] public bool instantiateMainMenuGroup = true;
        [BoxGroup("Settings")] public bool keepMenuButtonsSelected = false;
        [BoxGroup("Settings")] public bool keepSubMenuButtonsSelected = false;
        private GameObject mainMenu;
        private List<GameObject> subMenus = new List<GameObject>();
        private List<SelectedButton> selectButtons = new List<SelectedButton>();

        public override void Start()
        {
            useSubMenus = true;
            if(handler == null) handler = gameObject.GetComponents<IClickHandler>()[1];
            if(createMenuOnStart) 
            {
                DestroyMenu();
                CreateMenu();
            }
        }

        public override void OnClick(string title)
        {
             for (int i = 0; i < buttons.Count; i++)
             {
                 if(buttons[i].title == title)
                 {
                    if(buttons[i].subMenuParent) 
                    {
                        OpenSubMenu(title);
                        SelectParentButton(i);
                    }
                    if(buttons[i].action != "" && handler != null)
                    {
                        SelectChildButton(i);
                        handler.OnClick(buttons[i].action);
                    }
                    return;
                 }
             }
        }

        public override void CreateMenu() => CreateMenus();

        public void CreateMenus()
        {
            if(instantiateMainMenuGroup) mainMenu = Instantiate(subMenuPrefab, menuParent);
            else mainMenu = menuParent.gameObject;
            for (int i = 0; i < buttons.Count; i++)
            {
                if(string.IsNullOrEmpty(buttons[i].parent))
                {
                    var btn = CreateButton(buttons[i], mainMenu.transform, buttonPrefab);
                    selectButtons.Add(btn.GetComponent<SelectedButton>());
                    buttons[i].button = btn;
                    var subMenu = Instantiate(subMenuPrefab, subMenusParent);
                    subMenu.name = $"SubMenu {buttons[i].title}";
                    for (int a = 0; a < buttons.Count; a++)
                    {
                        if(buttons[a].parent == buttons[i].title)
                        {
                            var subBtn = CreateButton(buttons[a], subMenu.transform, subMenuButtonPrefab ?? buttonPrefab);
                            selectButtons.Add(subBtn.GetComponent<SelectedButton>());
                            buttons[a].button = subBtn;
                        }
                    }
                    subMenu.SetActive(false);
                    subMenus.Add(subMenu);
                }
            }
        }

        public override void DestroyMenu() => DestroyMenus();

        public void DestroyMenus()
        {
            for (int i = 0; i < subMenus.Count; i++)
            {
                 #if UNITY_EDITOR
                DestroyImmediate(subMenus[i]);
                #else
                Destroy(subMenus[i]);
                #endif
            }
            subMenus = new List<GameObject>();
            #if UNITY_EDITOR
            if(instantiateMainMenuGroup) DestroyImmediate(mainMenu);
            else foreach (var btn in buttons) DestroyImmediate(btn.button.gameObject);
            #else
            if(instantiateMainMenuGroup)  Destroy(mainMenu);
            else foreach (var btn in buttons) Destroy(btn.button.gameObject);
            #endif
            buttons = new List<MenuButtomData>();
        }

        public void OpenSubMenu(string title)
        {
            for (int i = 0; i < subMenus.Count; i++)
            {
                if(subMenus[i] == null) continue;
                if($"SubMenu {title}" == subMenus[i].name) subMenus[i].SetActive(true);
                else subMenus[i].SetActive(false);
            }
        }

        public void CloseSubMenus()
        {
            for (int i = 0; i < subMenus.Count; i++)
            {
                if(subMenus[i] != null) subMenus[i].SetActive(false);
            }
        }

        public void EditorSetup()
        {
            useSubMenus = true;
        }

        public void SelectParentButton(int index)
        {
            for (int i = 0; i < buttons.Count; i++)
            {
                if(i != index && buttons[i].subMenuParent) selectButtons[i].Deselect();
                else if(i == index) selectButtons[i].Select();
            }
        }

        public void SelectChildButton(int index)
        {
            for (int i = 0; i < buttons.Count; i++)
            {
                if(i != index && !buttons[i].subMenuParent) selectButtons[i].Deselect();
                else if(i == index) selectButtons[i].Select();
            }
        }

        public void DeselectChildButtons()
        {
            for (int i = 0; i < buttons.Count; i++)
            {
                if(!buttons[i].subMenuParent) selectButtons[i].Deselect();
            }
        }

        public void DeselectAllButtons()
        {
            for (int i = 0; i < buttons.Count; i++) selectButtons[i].Deselect();
        }
    }
}