registerPlugin({
    name: 'Custom Commands',
    version: '2.0',
    description: 'Allows anyone to skips songs, stop songs and adjust volume via !next, !stop and !volume low/med/high. Also you can blacklist certain usergroups from accessing these commands.',
    author: 'Smallo',
    engines: '>= 0.9.16',

    vars: [{
        name: 'BlockedExtras',
        title: 'Blocked User Groups and Blocked Messages.',
        type: 'array'
        vars: [{
            name: 'BlockedID',
            title: 'Group ID which is not allowed to use the music bot.',
            placeholder: '31',
            type: 'string'
        }, {
            name: 'BlockedMsg',
            title: 'Message to send to this group when they try to use a command.',
            placeholder: 'Sorry you have been blocked from using the bot.',
            type: 'string'
        }]
    }, {
        name: 'CommandPrefix',
        title: 'Prefix for commands.',
        placeholder: '! or . or /',
        type: 'string'
    }, {
        name: 'VolumeLow',
        title: 'Volume Low Setting',
        placeholder: '3',
        type: 'string'
    }, {
        name: 'VolumeMed',
        title: 'Volume Medium Setting',
        placeholder: '10',
        type: 'string'
    }, {
        name: 'VolumeHigh',
        title: 'Volume High Setting',
        placeholder: '18',
        type: 'string'
    }],
}, function (sinusbot, config, info) {

    // include modules
    var event = require('event');
    var engine = require('engine');
    var backend = require('backend');
    var media = require('media');
    var prefix = config.CommandPrefix;

    event.on('chat', function (ev) {
        if (!ev.client.isSelf()) {
            if (ev.text == prefix + 'volume low') { //volume med
                config.BlockedExtras.forEach(function(Extras) {
                    ev.client.getServerGroups().forEach(function(group) {
                        if (group.id() == Extras.BlockedID) {
                            ev.client.chat(Extras.BlockedMsg);
                            return;
                        } else {
                            setVolume(config.VolumeLow);
                        }
                    });
                });
            }

            if (ev.text == prefix + 'volume med') { //volume med
                config.BlockedExtras.forEach(function(Extras) {
                    ev.client.getServerGroups().forEach(function(group) {
                        if (group.id() == Extras.BlockedID) {
                            ev.client.chat(Extras.BlockedMsg);
                            return;
                        } else {
                            setVolume(config.VolumeMed);
                        }
                    });
                });
            }

            if (ev.text == prefix + 'volume high') { //volume high
                config.BlockedExtras.forEach(function(Extras) {
                    ev.client.getServerGroups().forEach(function(group) {
                        if (group.id() == Extras.BlockedID) {
                            ev.client.chat(Extras.BlockedMsg);
                            return;
                        } else {
                            setVolume(config.VolumeHigh);
                        }
                    });
                });
            }

            if (ev.text == prefix + 'next') { //next Song
                config.BlockedExtras.forEach(function(Extras) {
                    ev.client.getServerGroups().forEach(function(group) {
                        if (group.id() == Extras.BlockedID) {
                            ev.client.chat(Extras.BlockedMsg);
                            return;
                        } else {
                            next();
                        }
                    });
                });
            }

            if (ev.text == prefix + 'stop') { //stop Song
                config.BlockedExtras.forEach(function(Extras) {
                    ev.client.getServerGroups().forEach(function(group) {
                        if (group.id() == Extras.BlockedID) {
                            ev.client.chat(Extras.BlockedMsg);
                            return;
                        } else {
                            stop();
                        }
                    });
                });
            }
        }
    });
});