package electrosphere.menu;

import electrosphere.main.Globals;
import electrosphere.renderer.ui.ContainerElement;
import electrosphere.renderer.ui.DrawableElement;
import electrosphere.renderer.ui.Element;
import electrosphere.renderer.ui.Window;
import electrosphere.renderer.ui.elements.Label;

public class WindowUtils {
    
    public static void replaceMainMenuContents(Element newMenu){
        Element mainMenuEl = Globals.elementManager.getWindow(WindowStrings.WINDOW_MENU_MAIN);
        if(mainMenuEl != null && mainMenuEl instanceof Window){
            Window mainMenu = (Window) mainMenuEl;
            //todo: destroy elements as well
            mainMenu.getChildren().clear();
            mainMenu.addChild(newMenu);
            Globals.elementManager.focusFirstElement();
        }
    }

    public static void recursiveSetVisible(Element topLevelMenu, boolean visible){
        if(topLevelMenu instanceof DrawableElement){
            ((DrawableElement)topLevelMenu).setVisible(visible);
        }
        if(topLevelMenu instanceof ContainerElement){
            for(Element child : ((ContainerElement)topLevelMenu).getChildren()){
                recursiveSetVisible(child, visible);
            }
        }
    }

    public static String getInventoryWindowID(int id){
        return "INVENTORY-" + id;
    }

    public static void replaceWindowContents(String window, Element content){
        Element mainMenuEl = Globals.elementManager.getWindow(window);
        if(mainMenuEl != null && mainMenuEl instanceof Window){
            Window mainMenu = (Window) mainMenuEl;
            //todo: destroy elements as well
            mainMenu.getChildren().clear();
            mainMenu.addChild(content);
            Globals.elementManager.focusFirstElement();
        }
    }

    public static void pushItemIconToItemWindow(Element itemIcon){
        Window targetWindow = (Window) Globals.elementManager.getWindow(WindowStrings.WINDOW_ITEM_DRAG_CONTAINER);
        targetWindow.addChild(itemIcon);
        recursiveSetVisible(targetWindow,true);
        Globals.elementManager.pushWindowToFront(targetWindow);
    }

    public static void cleanItemDraggingWindow(){
        Window targetWindow = (Window) Globals.elementManager.getWindow(WindowStrings.WINDOW_ITEM_DRAG_CONTAINER);
        targetWindow.getChildren().clear();
        recursiveSetVisible(targetWindow, false);
    }

    public static void replaceWindow(String window, Window windowEl){
        Globals.elementManager.unregisterWindow(window);
        Globals.elementManager.registerWindow(window, windowEl);
        recursiveSetVisible(windowEl, true);
        Globals.elementManager.focusFirstElement();
    }







    public static void initBaseWindows(){
        initLoadingWindow();
        initItemDropWindow();
        initItemDragContainerWindow();
        initMainMenuWindow();
    }

    static void initLoadingWindow(){
        Window loadingWindow = new Window(0, 0, Globals.WINDOW_WIDTH, Globals.WINDOW_HEIGHT);
        Label loadingLabel = new Label(100,50,1.0f);
        loadingLabel.setText("LOADING");
        loadingWindow.addChild(loadingLabel);
        Globals.elementManager.registerWindow(WindowStrings.WINDOW_LOADING, loadingWindow);
        WindowUtils.recursiveSetVisible(loadingWindow, true);
    }

    static void initMainMenuWindow(){
        Window mainMenuWindow = new Window(0, 0, Globals.WINDOW_WIDTH, Globals.WINDOW_HEIGHT);
        Globals.elementManager.registerWindow(WindowStrings.WINDOW_MENU_MAIN, mainMenuWindow);
        WindowUtils.replaceMainMenuContents(MenuGenerators.createTitleMenu());
    }

    static void initItemDropWindow(){
        Globals.elementManager.registerWindow(WindowStrings.WINDDOW_ITEM_DROP, MenuGenerators.worldItemDropCaptureWindow());
    }

    static void initItemDragContainerWindow(){
        Window itemDragContainerWindow = new Window(0,0,Globals.WINDOW_WIDTH,Globals.WINDOW_HEIGHT);
        Globals.elementManager.registerWindow(WindowStrings.WINDOW_ITEM_DRAG_CONTAINER, itemDragContainerWindow);
    }

    public static void focusWindow(String window){
        Element windowEl = Globals.elementManager.getWindow(window);
        Globals.elementManager.unregisterWindow(window);
        Globals.elementManager.registerWindow(window, windowEl);
    }

}