//
// crunch.js
// Play a crunch sound and delete an entity when it is brought close to the head ("Eaten")
//
// Modified by: Elisa Lupin-Jimenez
// Copyright High Fidelity 2018
//
// Licensed under the Apache 2.0 License
// See accompanying license file or http://apache.org/
//
// All assets are under CC Attribution Non-Commerical
// http://creativecommons.org/licenses/
//

(function () {
    var TELEPORT_SOUND_VOLUME = 0.40;
    var teleportSound;
    var portalDestination;
    var position;

    var CHECK_RADIUS = 0.25; // meters
    var LIFETIME = 10; // seconds
    var GRAVITY = {x: 0, y: -9.8, z: 0};
    var DEBUG = false;

    var _entityID;
    var _this;

    function PortalSphere() {
        return;
    }

    PortalSphere.prototype = {
        isInactive: true,
    
        playSound: function(entityID) {
            if (teleportSound.downloaded) {
                if (!position) {
                    _this.getProps(entityID);
                }
                Audio.playSound(teleportSound, { position: position, volume: TELEPORT_SOUND_VOLUME, localOnly: true });
            }
        },
    
        getProps: function(entityID) {
            var properties = Entities.getEntityProperties(entityID);
            if (properties) {
                position = properties.position;
                portalDestination = JSON.parse(properties.userData).location;
            }
        }, 

        startNearGrab: function(entityID) {
            if (DEBUG) {
                print("starting portal grab");
            }
            var editJSON = {
                visible: true,
                lifetime: -1,
                dynamic: true,
                collisionless: true,
                gravity: GRAVITY
            };
            Entities.editEntity(entityID, editJSON);
        },

        releaseGrab: function(entityID) {
            if (DEBUG) {
                print("releasing portal grab");
            }
            var age = Entities.getEntityProperties(entityID, 'age').age;
            var editJSON = {
                lifetime: age + LIFETIME,
                collisionless: false
            };
            Entities.editEntity(entityID, editJSON);
        },
      
        checkIfNearHead: function() {
            if (_this.isInactive && HMD.active) {
                var position = Entities.getEntityProperties(_entityID, "position").position;
                var pillDistance = CHECK_RADIUS * MyAvatar.scale;
                if (Vec3.distance(position, MyAvatar.getJointPosition("Head")) < pillDistance || 
                    Vec3.distance(position, MyAvatar.getJointPosition("Neck")) < pillDistance) {
                    if (DEBUG) {
                        print("swallowing portal");
                    }
                    _this.isInactive = false;
                    _this.teleport();
                }
            }
        },

        teleport: function(entityID) {
            _this.getProps(entityID);
    
            if (portalDestination.length > 0) {
                _this.playSound(entityID);
                Window.location = "hifi://" + portalDestination;
            }
        },

        mousePressOnEntity: function(entityID, mouseEvent) {
            if (mouseEvent.isLeftButton) {
                if (!HMD.active && _this.isInactive) {
                    if (DEBUG) {
                        print("portal has been clicked");
                    }
                    _this.isInactive = false;
                    _this.teleport();
                }
            }
        },

        preload: function(entityID) {
            _this = this;
            if (DEBUG) {
                print("loading new portal");
            }
            try {
                teleportSound = SoundCache.getSound("http://s3.amazonaws.com/hifi-public/birarda/teleport.raw");
                _this.getProps(entityID);
            } catch (err) {
                print("Could not retrieve sound URLs");
            }
            Script.update.connect(_this.checkIfNearHead);
            _entityID = entityID;
        },

        unload: function(entityID) {
            if (DEBUG) {
                print("unloading portal");
            }
            Script.update.disconnect(_this.checkIfNearHead);
        }
    };

    var self = new PortalSphere();
    return self;

});