ui/Runtime/Encyclopedia/EncyclopediaUi.cs

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

[HideMonoScript]
public class EncyclopediaUi : MonoBehaviour
{
    public EncyclopediaController controller;
    public GameObject menuGameObject;
    public GameObject subMenuGameObject;
    public GameObject viewsGameObject;
    public Transform menuContainer;
    public Transform subMenuContainer;
    public bool createOnStart = true;
    public bool showDebug = false;
    public List<EncyclopediaUiView> views;
    private List<SelectedButton> menuButtonSelection;
    private List<SelectedButton> subMenuButtonSelection;
    private int menuIndex = -1;
    private int subMenuIndex = -1;
    private int currentMenuIndex = -1;
    private int currentSubMenuIndex = -1;

    private void Start()
    {
        if(menuGameObject == null) Debug.LogError("Missing Menu GameObject in EncyclopediaUi", this.gameObject);
        if(subMenuGameObject == null) Debug.LogError("Missing submenu GameObject in EncyclopediaUi", this.gameObject);
        if(viewsGameObject == null) Debug.LogError("Missing views GameObject in EncyclopediaUi", this.gameObject);
        if(createOnStart) Populate();
    }

    private void Update()
    {
        
    }

    [Button("Show Submenu"), ButtonGroup("EditorActions")]
    public void ShowSubmenu() => subMenuGameObject.SetActive(true);

    [Button("Hide Submenu"), ButtonGroup("EditorActions")]
    public void HideSubmenu() => subMenuGameObject.SetActive(false);

    public void Populate()
    {
        menuIndex = controller.menuIndex;
        subMenuIndex = controller.subMenuIndex;
        currentMenuIndex = controller.menuIndex;
        currentSubMenuIndex = controller.subMenuIndex;
        CreateMenu();
        CreateSubMenu();
        ShowArticle();
    }

    public void CreateMenu()
    {
        if(controller == null || menuContainer == null) return;
        menuButtonSelection = new List<SelectedButton>();
        Button[] oldButtons = menuContainer.GetComponentsInChildren<Button>();
        int counter = 0;
        if(showDebug) Debug.Log($"Destroying {oldButtons.Length} menu buttons");
        foreach (Button item in oldButtons) DestroyImmediate(item.gameObject);
        foreach (EncyclopediaCategory category in controller.categories)
        {
            var obj = Instantiate(controller.categoryButtomPrefab, new Vector3(), Quaternion.identity, menuContainer.transform);
            var btnData = obj.GetComponent<ButtonData>();
            if(btnData != null) btnData.Setup(category.title, category.icon);
            var handler = obj.GetComponent<ClickHandler>();
            if(handler != null) handler.Setup(category.id, (IClickHandler)controller);
            var selectedButton = obj.GetComponent<SelectedButton>();
            if(selectedButton != null) menuButtonSelection.Add(selectedButton);
            counter += 1;
        }
        if(menuIndex < menuButtonSelection.Count) 
        {
            //menuIndex = controller.menuIndex;
            menuButtonSelection[menuIndex].Select();
        }
        if(showDebug) Debug.Log($"Created {counter} menu buttons");
    }

    public void CreateSubMenu()
    {
        if(controller == null || subMenuContainer == null) return;
        subMenuButtonSelection = new List<SelectedButton>();
        Button[] oldButtons = subMenuContainer.GetComponentsInChildren<Button>();
        int counter = 0;
        var category = controller.categories[controller.menuIndex];
        category.UpdateArticles();
        if(showDebug) Debug.Log($"Destroying {oldButtons.Length} sub menu buttons");
        foreach (Button item in oldButtons) DestroyImmediate(item.gameObject);
        foreach (EncyclopediaArticle article in category.GetArticles())
        {
            var obj = Instantiate(category.buttonPrefab, new Vector3(), Quaternion.identity, subMenuContainer.transform);
            var btnData = obj.GetComponent<ButtonData>();
            Sprite icon = null;
            if(article.icon != null) icon = article.icon;
            else icon = category.icon;
            if(btnData != null) btnData.Setup(article.title, icon);
            var handler = obj.GetComponent<ClickHandler>();
            if(handler != null) handler.Setup(article.id, (IClickHandler)controller);
            var selectedButton = obj.GetComponent<SelectedButton>();
            if(selectedButton != null) subMenuButtonSelection.Add(selectedButton);
            counter += 1;
        }
        if(controller.subMenuIndex < subMenuButtonSelection.Count && menuIndex == currentMenuIndex)
        {
            //subMenuIndex = controller.subMenuIndex;
            subMenuButtonSelection[subMenuIndex].Select();
        }
        if(showDebug) Debug.Log($"Created {counter} sub menu buttons");
    }

    public void ShowArticle()
    {
        if(controller == null) return;
        var category = controller.categories[menuIndex];
        var articles = category.GetArticles();
        var article = articles[subMenuIndex];
        var layout = GetView(category.layoutName);
        if(layout == null) return;
        HideViews();
        layout.view.SetActive(true);
        foreach (var item in layout.view.GetComponentsInChildren<EncyclopediaArticleUi>(true))
        {
            item.Setup(article);
        }
        foreach (var btn in subMenuButtonSelection) btn.Deselect();
        subMenuButtonSelection[subMenuIndex].Select();
        currentMenuIndex = menuIndex;
        currentSubMenuIndex = subMenuIndex;
    }

    public void Navigate()
    {
        if(controller == null) return;
        // Navigated to different category
        if(menuIndex != controller.menuIndex)
        {
            menuIndex = controller.menuIndex;
            CreateMenu();
            CreateSubMenu();
        }
        else if (currentMenuIndex != menuIndex && currentSubMenuIndex == subMenuIndex)
        {
            if(controller.subMenuIndex > controller.categories[menuIndex].GetArticles().Count) return;
            else subMenuIndex = controller.subMenuIndex;
            ShowArticle();
        }
        if(subMenuIndex != controller.subMenuIndex)
        {
            if(controller.subMenuIndex > controller.categories[menuIndex].GetArticles().Count) return;
            else subMenuIndex = controller.subMenuIndex;
            ShowArticle();
        }
    }

    public EncyclopediaUiView GetView(string title)
    {
        for (int i = 0; i < views.Count; i++)
        {
            if(views[i].title == title) return views[i];
        }
        return null;
    }

    public void HideViews()
    {
        foreach (var layout in views) layout.view.SetActive(false);
    }

    [System.Serializable]
    public class EncyclopediaUiView
    {
        [HorizontalGroup("Line", 0.4f), HideLabel] public string title;
        [HorizontalGroup("Line", 0.6f), HideLabel] public GameObject view;
    }
}