const async = require('async');

class Teamspeak3 extends require('./core') {
	run(state) {
		async.series([
			(c) => {
				this.sendCommand('use port='+this.options.port, (data) => {
					const split = data.split('\n\r');
					if(split[0] !== 'TS3') this.fatal('Invalid header');
					c();
				}, true);
			},
			(c) => {
				this.sendCommand('serverinfo', (data) => {
					state.raw = data[0];
					if('virtualserver_name' in state.raw) state.name = state.raw.virtualserver_name;
                    if('virtualserver_maxclients' in state.raw) state.maxplayers = state.raw.virtualserver_maxclients;
					c();
				});
			},
			(c) => {
				this.sendCommand('clientlist', (list) => {
					for (const client of list) {
                        client.name = client.client_nickname;
						delete client.client_nickname;
						if(client.client_type === '0') {
							state.players.push(client);
						}
					}
					c();
				});
			},
			(c) => {
				this.sendCommand('channellist -topic', (data) => {
					state.raw.channels = data;
					c();
				});
			},
			(c) => {
				this.finish(state);
			}
		]);
	}
	sendCommand(cmd,c,raw) {
		this.tcpSend(cmd+'\x0A', (buffer) => {
			if(buffer.length < 21) return;
			if(buffer.slice(-21).toString() !== '\n\rerror id=0 msg=ok\n\r') return;
			const body = buffer.slice(0,-21).toString();

			let out;

			if(raw) {
				out = body;
			} else {
                const segments = body.split('|');
				out = [];
				for (const line of segments) {
                    const split = line.split(' ');
                    const unit = {};
					for (const field of split) {
                        const equals = field.indexOf('=');
                        const key = equals === -1 ? field : field.substr(0,equals);
                        const value = equals === -1 ? '' : field.substr(equals+1)
							.replace(/\\s/g,' ').replace(/\\\//g,'/');
						unit[key] = value;
					}
					out.push(unit);
				}
			}

			c(out);

			return true;
		});
	}
}

module.exports = Teamspeak3;