401 lines
14 KiB
JavaScript
401 lines
14 KiB
JavaScript
const util = require('./util.js');
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const constants = require('./constants.js');
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const logger = require('./logger.js');
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const cache = require('./cache.js');
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const commands = require('./commands.js');
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const blinky = require('./blinky.js');
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const osc = require('./osc.js');
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const path = require('path');
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const fs = require('fs');
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const ttl2jsonld = require('@frogcat/ttl2jsonld').parse;
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let pedalboardIdBypassOrigin;
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async function reset() {
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await util.httpGET(global.config.modep.host, global.config.modep.port, '/reset');
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}
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async function getBanks() {
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let banks = cache.getBanks();
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if (banks !== undefined) {
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return banks;
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}
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banks = await util.httpGET(global.config.modep.host, global.config.modep.port, '/banks');
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for (let index = 0; index < banks.length; index++) {
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let bank = banks[index];
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bank.id = index;
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}
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banks = util.sortById(banks);
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cache.setBanks(banks);
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return banks;
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}
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async function getBankById(bankId) {
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const banks = await getBanks();
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for (let index = 0; index < banks.length; index++) {
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if (banks[index].id != bankId) {
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continue;
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}
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return banks[index];
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}
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throw new Error('could not find bank by id \'' + bankId + '\'');
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}
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async function getPedalboards() {
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let pedalboards = cache.getPedalboards();
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if (pedalboards !== undefined) {
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return pedalboards;
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}
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pedalboards = await util.httpGET(global.config.modep.host, global.config.modep.port, '/pedalboard/list');
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let id = 1;
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for (let index = 0; index < pedalboards.length; index++) {
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let pedalboard = pedalboards[index];
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if (pedalboard.bundle === constants.PEDALBOARD_DEFAULT) {
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pedalboard.id = 0;
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defaultPedalboard = pedalboard;
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continue;
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}
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pedalboard.id = id;
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id++;
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}
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pedalboards = util.sortById(pedalboards);
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cache.setPedalboards(pedalboards);
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return pedalboards;
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}
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async function getDefaultPedalboard() {
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let defaultPedalboard = cache.getDefaultPedalboard();
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if (defaultPedalboard !== undefined) {
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return defaultPedalboard;
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}
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defaultPedalboard = await getPedalboardByBundle(constants.PEDALBOARD_DEFAULT);
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cache.setDefaultPedalboard(defaultPedalboard);
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return defaultPedalboard;
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}
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async function getCurrentPedalboard() {
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let currentPedalboard = cache.getCurrentPedalboard();
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if (currentPedalboard !== undefined) {
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return currentPedalboard;
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}
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currentPedalboard = await getPedalboardByBundle(await util.httpGET(global.config.modep.host, global.config.modep.port, '/pedalboard/current'));
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cache.setCurrentPedalboard(currentPedalboard);
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return currentPedalboard;
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}
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async function getPedalboardById(pedalboardId) {
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const pedalboards = await getPedalboards();
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if (pedalboards === undefined) {
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return;
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}
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for (let index = 0; index < pedalboards.length; index++) {
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if (pedalboards[index].id != pedalboardId) {
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continue;
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}
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return pedalboards[index];
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}
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throw new Error('could not find pedalboard by id \'' + pedalboardId + '\'');
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}
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async function getPedalboardByBundle(pedalboardBundle) {
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if (pedalboardBundle === undefined) {
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return await getDefaultPedalboard();
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}
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const pedalboards = await getPedalboards();
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for (let index = 0; index < pedalboards.length; index++) {
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if (pedalboards[index].bundle != pedalboardBundle) {
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continue;
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}
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return pedalboards[index];
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}
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throw new Error('could not find pedalboard by bundle \'' + pedalboardBundle + '\'');
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}
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async function getPedalControlById(pedalId, controlId) {
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const pedal = await getCurrentPedalById(pedalId);
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for (let index = 0; index < pedal.controls.length; index++) {
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if (pedal.controls[index].id != controlId) {
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continue;
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}
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return pedal.controls[index];
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}
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throw new Error('could not find control for pedal \'' + pedalId + '\' by id \'' + controlId + '\'');
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}
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async function getCurrentPedalById(id) {
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const currentPedals = await getCurrentPedals();
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for (let index = 0; index < currentPedals.length; index++) {
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if (currentPedals[index].id != id) {
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continue;
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}
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return currentPedals[index];
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}
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throw new Error('could not find current pedal by id \'' + id + '\'');
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}
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async function getCurrentPedals() {
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let currentPedals = cache.getCurrentPedals();
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if (currentPedals !== undefined) {
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return currentPedals;
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}
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return await parseCurrentPedalboard(await getCurrentPedalboard());
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}
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async function parseCurrentPedalboard(currentPedalboard) {
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let pedals = [];
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const defaultPedalboard = await getDefaultPedalboard();
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if (defaultPedalboard.id === currentPedalboard.id) {
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cache.setCurrentPedals(pedals);
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blinky.setStatus(currentPedalboard, pedals);
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return pedals;
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}
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let startTime = new Date();
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logger.debug('parsing current pedalboard \'' + currentPedalboard.title + '\'...');
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if (currentPedalboard.uri === undefined) {
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throw new Error('could not determine current pedalboard config file');
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}
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let file = path.resolve(currentPedalboard.uri.replace('file://', ''));
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if (global.config?.dev) {
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file = path.resolve(path.dirname(__dirname) + '/dev/' + currentPedalboard.uri.substring(currentPedalboard.uri.lastIndexOf('/') + 1));
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}
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const data = await new Promise((resolve, reject) => {
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fs.readFile(file, (err, data) => {
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if (err) {
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return reject('could not parse current pedalboard file \'' + file + '\' >>> ' + err);
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}
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resolve(data);
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});
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});
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let json = ttl2jsonld(data.toString())['@graph'];
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let id = 0;
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for (let index = 0; index < json.length; index++) {
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let tmp = json[index];
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if (tmp['lv2:prototype'] === undefined) {
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continue;
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}
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let name = tmp['@id'];
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pedals.push({ id: id, name: name, controls: [] });
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id++;
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}
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for (let index = 0; index < json.length; index++) {
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let tmp = json[index];
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let name = tmp['@id'];
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let value = tmp['ingen:value'];
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if (value === undefined) {
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continue;
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}
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let pedal = undefined;
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for (let pedalIndex = 0; pedalIndex < pedals.length; pedalIndex++) {
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if (!name.startsWith(pedals[pedalIndex].name)) {
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continue;
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}
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pedal = pedals[pedalIndex];
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break;
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}
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if (pedal === undefined) {
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continue;
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}
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id = pedal.controls.length;
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name = name.replace(pedal.name + '/', '');
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if (name !== constants.CONTROL_BYPASS) {
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value = value['@value'];
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}
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let control = { id, name, value };
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pedal.controls.push(control);
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id++;
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let midi = tmp['midi:binding'];
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if (midi === undefined) {
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continue;
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}
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control.midi = { channel: midi['midi:channel'], controller: midi['midi:controllerNumber'] }
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}
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logger.debug('parsing current pedalboard file \'' + file + '\' took ' + util.timeDiff(startTime) + 'ms')
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cache.setCurrentPedals(pedals);
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blinky.setStatus(currentPedalboard, pedals);
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return pedals;
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}
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async function setControlByRequest(pedalId, requestParams) {
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if (requestParams === undefined) {
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throw new Error('could not handle POST missing all parameters', 400);
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}
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let controlId = requestParams.get('id');
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if (controlId === undefined || controlId === null) {
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throw new Error('could not handle POST - missing parameter \'id\'', 400);
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}
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if (isNaN(controlId)) {
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throw new Error('parameter \'id\' is not a number', 400);
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}
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let value = requestParams.get('value');
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if (value === undefined || value === null) {
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throw new Error('could not handle POST - missing parameter \'value\'', 400);
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}
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if (isNaN(value)) {
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throw new Error('parameter \'value\' is not a number', 400);
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}
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return await setControl(await getPedalControlById(pedalId, controlId), parseInt(value));
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}
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async function setControl(control, value) {
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if (control === undefined || control.midi === undefined) {
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throw new Error('control \'' + control.name + '\' with id \'' + control.id + '\' has no midi bindings');
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}
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control.midi.value = await osc.send(control.midi.controller, control.midi.channel, value);
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cache.updateControl(control);
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logger.info('set value for control \'' + control.name + '\' to \'' + value + '\'');
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}
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async function setPedalboardById(pedalboardId) {
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if (pedalboardId === undefined) {
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throw new Error('no pedalboard id given');
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}
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if (isNaN(pedalboardId)) {
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throw new Error('given pedalboard id \'' + pedalboardId + '\' is not a number');
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}
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return await setPedalboard(await getPedalboardById(pedalboardId));
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}
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async function setPedalboard(pedalboard) {
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if (pedalboard?.bundle === undefined) {
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throw new Error('no bundle set for pedalboard \'' + pedalboard.title + '\'');
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}
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if (pedalboard.id === await getCurrentPedalboard().id) {
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throw new Error('pedalboard with id \'' + currentPedalboard.id + '\' is already active');
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}
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await reset();
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await util.httpPOST(global.config.modep.host, global.config.modep.port, '/pedalboard/load_bundle/?bundlepath=' + pedalboard.bundle);
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cache.setCurrentPedalboard(pedalboard);
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logger.info('set current pedalboard to \'' + pedalboard.title + '\'');
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return await parseCurrentPedalboard(pedalboard);
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}
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function hasControlMidiBindings(control) {
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return control?.midi !== undefined;
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}
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function isBypassActive(control) {
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return (control.midi?.value === undefined && control.value >= 1) || control.midi?.value === 0;
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}
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function isPedalBypassed(pedal) {
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return isBypassActive(getBypassControlFromPedal(pedal));
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}
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function getBypassControlFromPedal(pedal) {
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if (pedal === undefined) {
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throw new Error('could not get bypass for an undefined pedal');
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}
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if (pedal.controls === undefined || pedal.controls.length === 0) {
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throw new Error('could not get bypass for pedal \'' + pedal.name + '\' with id \'' + pedal.id + '\', pedal has no controls');
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}
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let bypass;
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for (let index = 0; index < pedal.controls.length; index++) {
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const control = pedal.controls[index];
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if (control.name === constants.CONTROL_BYPASS) {
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bypass = pedal.controls[index];
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break;
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}
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}
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if (bypass === undefined) {
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throw new Error('could not find bypass control for pedal \'' + pedal.name + '\' with id \'' + pedal.id + '\'');
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}
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return bypass;
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}
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async function toggleBypass(pedalId) {
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const currentPedalboard = await getCurrentPedalboard();
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const defaultPedalboard = await getDefaultPedalboard();
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if (currentPedalboard.id === defaultPedalboard.id && pedalboardIdBypassOrigin === undefined) {
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throw new Error('could not activate bypass, default pedalboard is currently already active');
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}
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if (pedalId === undefined) {
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try {
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let pedalboardId;
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if (pedalboardIdBypassOrigin === undefined) {
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pedalboardId = defaultPedalboard.id;
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pedalboardIdBypassOrigin = currentPedalboard.id;
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} else {
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pedalboardId = pedalboardIdBypassOrigin;
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pedalboardIdBypassOrigin = undefined;
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}
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await setPedalboardById(pedalboardId);
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getPedalboardById
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return { status: 'ok', pedalboard: await getPedalboardById(pedalboardId) };
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} catch (err) {
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throw new Error(err);
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}
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}
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const pedal = await getCurrentPedalById(pedalId);
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const bypass = getBypassControlFromPedal(pedal);
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let value = 0;
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if (isBypassActive(bypass)) {
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value = 127;
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}
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try {
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await setControl(bypass, value);
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blinky.setPedalStatus(pedal);
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} catch (err) {
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throw new Error('could not toggle bypass for pedal ' + pedal.name + ' with id \'' + pedal.id + '\' > ' + err);
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}
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logger.info('toggled bypass for pedal \'' + pedal.name + '\'');
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return { status: 'ok', bypass: isBypassActive(bypass), control: bypass };
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}
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async function saveCurrentPedalboard(id, args) {
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const currentPedalboard = await getCurrentPedalboard();
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const defaultPedalboard = await getDefaultPedalboard();
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if (currentPedalboard.id === defaultPedalboard.id) {
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throw new Error('not saving default pedalboard \'' + defaultPedalboard.title + '\'');
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}
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let title = args?.get('title') || currentPedalboard.title;
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let newBoard = 1;
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if (title === currentPedalboard.title) {
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newBoard = 0;
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} else {
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const pedalboards = await getPedalboards();
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for (let index = 0; index < pedalboards.length; index++) {
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if (pedalboards[index].title === title) {
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throw new Error('not saving current state of pedalboard \'' + currentPedalboard.title + '\' as new pedalboard \'' + title + '\', pedalboard already exists')
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}
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}
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}
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await util.httpPOST(global.config.modep.host, global.config.modep.port, '/pedalboard/save', { title: title, asNew: newBoard });
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result = {
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status: 'ok',
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title: title,
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pedalboard: currentPedalboard
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};
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if (newBoard === 0) {
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logger.info('saved current state of pedalboard \'' + currentPedalboard.title + '\'');
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} else {
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logger.info('saved current state of pedalboard \'' + currentPedalboard.title + '\' as new pedalboard \'' + title + '\'');
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cache.clearPedalboards();
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await getPedalboards();
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}
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return {
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status: 'ok',
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title: title,
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pedalboard: currentPedalboard
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};
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}
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module.exports = {
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getBanks,
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getBankById,
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getPedalboards,
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getPedalboardById,
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getDefaultPedalboard,
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getCurrentPedalboard,
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saveCurrentPedalboard,
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getCurrentPedals,
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getCurrentPedalById,
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getPedalControlById,
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setPedalboard,
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setPedalboardById,
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setControlByRequest,
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toggleBypass,
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isBypassActive,
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isPedalBypassed,
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getBypassControlFromPedal,
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hasControlMidiBindings
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} |