const SerialPort = require('serialport');

const config = require('komodo-sdk/config');
const logger = require('komodo-sdk/logger');


const ParserInterByteTimeout = require('@serialport/parser-inter-byte-timeout');

const parsers = require('./lib/serialport-parsers');
const modemCommands = require('./lib/modem-commands');

const parserInterByteTimeout = new ParserInterByteTimeout({ interval: 1000 });
parserInterByteTimeout.on('data', (data) => {
    logger.verbose('INCOMING', { parser: 'parserInterByteTimeout', data: data.toString() });
});

const port = new SerialPort(config.modem.device, { baudRate: 115200 }, async (err) => {
    if (err) {
        logger.warn(`Error opening modem. ${err}. Terminating modem ${config.modem.device}.`);
        process.exit(1);
    }

    await modemCommands.writeToPortAndWaitForOkOrError('AT\r');
    await modemCommands.writeToPortAndWaitForOkOrError('AT&FE0\r');
    await modemCommands.writeToPortAndWaitForOkOrError('AT+CMGF=0\r');
    await modemCommands.writeToPortAndWaitForOkOrError('AT+CNMI=1,2,0,1,0\r');

    const imei = await modemCommands.queryIMEI();
    logger.info(`**** IMEI: ${imei}`);

    const imsi = await modemCommands.queryIMSI();
    logger.info(`**** IMSI: ${imsi}`);

    const cops = await modemCommands.queryCOPS();
    logger.info(`**** COPS: ${cops}`);

    const signalQuality = await modemCommands.querySignalQuality();
    logger.info(`**** Signal Quality: ${signalQuality}`);

    setInterval(() => {
        modemCommands.querySignalQuality();
    }, (config && config.interval_beetwen_signal_strength_ms) || 30000);
});

parsers.setPort(port);
modemCommands.setPort(port);

if (config && config.modem_tester && config.modem_tester.parser === 'regex') {
    logger.info('Using parserWaitForOkOrError');
    port.pipe(parsers.parserWaitForOkOrError);
} else if (config && config.modem_tester && config.modem_tester.parser === 'interbyte') {
    logger.info('Using parserInterByteTimeout');
    port.pipe(parserInterByteTimeout);
} else {
    logger.info('Using parserReadline');
    port.pipe(parsers.parserReadline);
}