lastfmCommand.js

    (function() {
        const db_title = "lastfm";
        const default_last_fm_api_key = "293111fdaf9f475bf1f5463a063ffa66";
        const api_url_basics = "https://ws.audioscrobbler.com/2.0/?method=user.getrecenttracks&format=json&limit=1";
        // variable
        var last_fm_api_key = default_last_fm_api_key;
        var last_fm_username = "";
        var artist = "";
        var name = "";
        var sender;

        function initVars() {
            last_fm_username = $.inidb.get(db_title, 'user_name');
            last_fm_api_key = $.inidb.get(db_title, "api_key");
        }

        function getTrackFromLastFm(index, repeater) {
            try {
                var jsonObj = JSON.parse($.customAPI.get(api_url_basics + "&page=" + index + "&user=" + last_fm_username + "&api_key=" + last_fm_api_key).content);
                var current_track = jsonObj.recenttracks.track[0];
                if (index > 1) {
                    track = jsonObj.recenttracks.track[1];
                    $.say($.whisperPrefix(sender) + " 🎶 " + track["name"] + " - " +  track["artist"]["#text"] + ", " + track["album"]["#text"]);
                } else if (index == 1) {
                    var new_track = ((artist != current_track["artist"]["#text"]) || (name != current_track["name"]));
                    artist = current_track["artist"]["#text"];
                    name = current_track["name"];
                    if (!repeater || new_track) {
                        $.say((repeater ? "" : $.whisperPrefix(sender)) + " 🎶 " + current_track["name"] + " - " +  current_track["artist"]["#text"] + ", " + current_track["album"]["#text"]);
                    }
                }
                return true;
            } catch (ex) {
                $.consoleLn(ex);
                $.consoleLn(ex.stack);
            }
            return false;
        }

        $.bind('command', function(event) {

            sender = event.getSender(); // Grabs the person who used the command
            var command = event.getCommand(), // Grabs the command being used
                args = event.getArgs(), // arguments used for your commands like maybe
                action = args[0], // the array of args received
                subAction = args[1];

            if (command.equalsIgnoreCase('song')) {
                initVars();
                if (action === undefined) {
                    getTrackFromLastFm(1, false);
                } else if (action.equalsIgnoreCase("previous")) {
                    getTrackFromLastFm(2, false);
                } else if (action.equalsIgnoreCase("index")) {
                    getTrackFromLastFm(parseInt(subAction));
                } else if (action.equalsIgnoreCase("help")) {
                    $.say($.whisperPrefix(sender) + " !song - get the current played song \\ !song on - enable \\ !song off - disable \\ !song previous - last played song \\ !song index * - last played song numerical 1 (newest) to max-oldest \\  !song key * - set the lastfm api key \\ !song user * - set the lastfm user name", $.whisperPrefix(sender));
                } else if (action.equalsIgnoreCase("user")) {
                    if (!$.isBot(sender)) {
                        return;
                    }
                    last_fm_username = subAction;
                    if (getTrackFromLastFm(1, false)) {
                        $.inidb.set(db_title, 'user_name', subAction);
                        $.inidb.SaveAll(true);
                        $.say($.whisperPrefix(sender) + " user name set to " + last_fm_username);
                    } else {
                        initVars();
                        $.say($.whisperPrefix(sender) + " user name ignored keeping old username " + last_fm_username);
                    }
                } else if (action.equalsIgnoreCase('key')) {
                    if (!$.isBot(sender)) {
                        return;
                    }
                    last_fm_api_key = subAction;
                    if (getTrackFromLastFm(1, false)) {
                        $.inidb.set(db_title, "api_key", subAction);
                        $.inidb.SaveAll(true);
                        $.say($.whisperPrefix(sender) + " api key set to" + last_fm_api_key);
                    } else {
                        initVars();
                        $.say($.whisperPrefix(sender) + " api key ignored keeping old api key ");
                    }
                } else if (action.equalsIgnoreCase('on')) {
                    if (!$.isBot(sender)) {
                        return;
                    }
                    $.inidb.set(db_title, 'enabled', true);
                } else if (action.equalsIgnoreCase('off')) {
                    if (!$.isBot(sender)) {
                        return;
                    }
                    $.inidb.set(db_title, 'enabled', false);
                }
                $.consoleLn("command completed");
            }
        });

        $.bind('initReady', function() {

            if (!$.inidb.exists(db_title, 'initial_push')) {
                setTimeout(function() {
                    $.inidb.set(db_title, 'initial_push', true);
                    $.inidb.set(db_title, 'enabled', true);
                    $.inidb.set(db_title, 'user_name', 'rj');
                    $.inidb.set(db_title, 'api_key', default_last_fm_api_key);
                    $.inidb.SaveAll(true);
                }, 5 * 1000);
            };
            if ($.bot.isModuleEnabled('./commands/lastfmCommand.js')) {
                initVars();
                $.registerChatCommand('./commands/lastfmCommand.js', 'song');
                setInterval(function() {
                    if ($.inidb.get(db_title, 'enabled') == 'true') {
                        if (!getTrackFromLastFm(1, true)) {
                            $.consoleLn("failed to get last.fm track info");
                        }
                    }
                }, 2.5 * 1000);
            }
        });

    })();