//
//  countDown.js
//
//  Created by Rebecca Stankus on 07/02/18
//  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 _this;

    var DEBUG = 1;
    var ONE_THOUSAND = 1000;
    var SECONDS_PER_MINUTE = 60;
    var MINUTES_PER_HOUR = 60;
    var HOURS_PER_DAY = 24;
    var TWO_DIGITS = 10;
    var TARGET_TIME_INDEX = 13;

    var Countdown = function() {
        _this = this;
    };

    Countdown.prototype = {
        interval: null,
        targetTime: null,

        preload: function(entityID) {
            _this.entityID = entityID;
            _this.getTargetTime();
            _this.synchronize();
            _this.interval = Script.setInterval(function() {
                _this.synchronize();
            }, ONE_THOUSAND);
        },

        getTargetTime: function() {
            var name = Entities.getEntityProperties(_this.entityID, 'name').name;
            _this.targetTime = new Date(name.substring(TARGET_TIME_INDEX, (name.length))).getTime();
            if (DEBUG) {
                print("target time is ", _this.targetTime);
            }
        },

        synchronize: function() {
            var currentTime = new Date().getTime();
            print("THE TIME IS NOW ", currentTime.getMonth(), "/", currentTime.getDate(), " ", currentTime.getHours(), ":", currentTime.getMinutes());
            var untilTargetTime = _this.targetTime - currentTime;
            var days = Math.floor(untilTargetTime / (ONE_THOUSAND * SECONDS_PER_MINUTE * MINUTES_PER_HOUR * HOURS_PER_DAY));
            var targetPassed = false;
            if (days < 0) {
                targetPassed = true;
            } else {
                days = days < TWO_DIGITS ? "0" + days : days;
            }
            var hours = Math.floor((untilTargetTime % (ONE_THOUSAND * SECONDS_PER_MINUTE * MINUTES_PER_HOUR * HOURS_PER_DAY))
                 / (ONE_THOUSAND * SECONDS_PER_MINUTE * MINUTES_PER_HOUR ));
            if (hours < 0) {
                targetPassed = true;
            } else {
                hours = hours < TWO_DIGITS ? "0" + hours : hours;
            }
            var minutes = Math.floor((untilTargetTime % (ONE_THOUSAND * SECONDS_PER_MINUTE * MINUTES_PER_HOUR )) / 
                (ONE_THOUSAND * SECONDS_PER_MINUTE));
            if (minutes < 0) {
                targetPassed = true;
            } else {
                minutes = minutes < TWO_DIGITS ? "0" + minutes : minutes;
            }
            var seconds = Math.floor((untilTargetTime % (ONE_THOUSAND * SECONDS_PER_MINUTE)) / ONE_THOUSAND);
            if (seconds < 0) {
                targetPassed = true;
            } else {
                seconds = seconds < TWO_DIGITS ? "0" + seconds : seconds;
            }
            if (targetPassed) {
                Entities.editEntity(_this.entityID, { text: "HOORAY!" });
            } else {
                Entities.editEntity(_this.entityID, { text: days + "d " + hours + "h "
                    + minutes + "m " + seconds + "s "});
            }
        },

        unload: function() {
            if (_this.interval) {
                Script.clearInterval(_this.interval);
            }
        }

    };

    return new Countdown;

});