RES - Night mode timer

modules['nightTimer'] = {
    moduleID: 'nightTimer',
    moduleName: 'Night Timer',
    category: 'UI',
    options: {
        startTime: {
            type: 'text',
            value: [21],
            description: "Start time for night mode (as an hour). Example, 21 for 9pm."
        },
        endTime: {
            type: 'text',
            value: [6],
            description: "End time for night mode (as an hour). Example, 6 for 6am."
        },
        checkInterval: {
            type: 'text',
            value: [5],
            description: "The interval, in minutes, to check for day/night changeover."
        }
    },
    description: 'Automatically turn night mode on/off at the specified times.',
    isEnabled: function() {
        return RESConsole.getModulePrefs(this.moduleID);
    },
    include: new Array(/https?:\/\/([a-z]+).reddit.com\/[\?]*/i),
    isMatchURL: function() {
        return RESUtils.isMatchURL(this.moduleID);
    },
    flipSwitch: function() {
        var now, theSwitch;
        var start = +(this.options.startTime.value);
        var end = +(this.options.endTime.value);
        if (document.querySelector('#lightSwitchToggle')) {
            theSwitch = document.querySelector('#lightSwitchToggle');
            now = new Date().getHours();
            if (start > end) {
                if (now >= start) {
                    if (!theSwitch.className.match(/enabled/)) {
                        RESUtils.click(modules['styleTweaks'].lightSwitch);
                    }
                }
                if ((now < start) && (now >= end)) {
                    if (theSwitch.className.match(/enabled/)) {
                        RESUtils.click(modules['styleTweaks'].lightSwitch);
                    }
                }
            }
            if (start < end) {
                if ((now >= start) && (now < end)) {
                    if (!theSwitch.className.match(/enabled/)) {
                        RESUtils.click(modules['styleTweaks'].lightSwitch);
                    }
                }
                if ((now > end) || (now < start)) {
                    if (theSwitch.className.match(/enabled/)) {
                        RESUtils.click(modules['styleTweaks'].lightSwitch);
                    }
                }
            }
        }
    },
    go: function() {
        if ((this.isEnabled()) && (this.isMatchURL())) {
            if (RESUtils.getOptions('styleTweaks').lightSwitch.value === true) {
                var delay = +((this.options.checkInterval.value) * 60000);
                modules['nightTimer'].flipSwitch();
                window.setInterval(function checkTime() {
                    modules['nightTimer'].flipSwitch();
                }, delay);
            } //
        }
    }
};