//
//  bridgeApp.js
//
//  Created by Rebecca Stankus on 06/11/18
//  Copyright 2018 High Fidelity, Inc.
//
//  Distributed under the Apache License, Version 2.0.
//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html

(function() {
    var TABLET_BUTTON_IMAGE = Script.resolvePath('svg/megaphone-i.svg');
    var TABLET_BUTTON_PRESSED = Script.resolvePath('svg/megaphone-a.svg');
    var SEARCH_RADIUS = 100;

    var tablet = Tablet.getTablet('com.highfidelity.interface.tablet.system');
    var appPage = Script.resolvePath('bridgeApp.html');
    var button = tablet.addButton({
        text: 'BRIDGE',
        icon: TABLET_BUTTON_IMAGE,
        activeIcon: TABLET_BUTTON_PRESSED
    });
    var open = false;
    
    function findTargets() {
        Entities.findEntities(MyAvatar.position, SEARCH_RADIUS).forEach(function(element) {
            var properties = Entities.getEntityProperties(element, ['name']);
            if (properties.name === "") {
                contentToSwap = element;
            }
        });
    }

    function onClicked() { 
        if (open) {
            tablet.gotoHomeScreen();
        } else {
            tablet.gotoWebScreen(appPage);
        }
    }

    function swapContent() {
        print("swap");
    }

    function restoreContent() {
        print("restore");
    }

    function onWebEventReceived(event) {
        if (typeof event === 'string') {
            findTargets();
            event = JSON.parse(event);
            switch (event.type) {
                case 'changeSet':
                    swapContent();
                    break;
                case 'restoreSet':
                    restoreContent();
                    break;
                default:
                    print("error in detecting event.type");
            } 
        }
    }

    function onScreenChanged(type, url) {
        open = (url === appPage);
        button.editProperties({isActive: open});
    }

    function appEnding() {
        button.clicked.disconnect(onClicked);
        tablet.removeButton(button);
        tablet.screenChanged.disconnect(onScreenChanged);
        tablet.webEventReceived.disconnect(onWebEventReceived);
    }
    
    button.clicked.connect(onClicked);
    tablet.screenChanged.connect(onScreenChanged);
    tablet.webEventReceived.connect(onWebEventReceived);

    Script.scriptEnding.connect(appEnding);
}());