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main.js
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/**
* RPI-Monitor Adapter
*
* License: MIT
*/
'use strict';
const utils = require('@iobroker/adapter-core'); // Get common adapter utils
let gpio;
let errorsLogged = {};
const adapter = new utils.Adapter({
name: 'rpi2',
ready: function () {
config = adapter.config;
if (adapter.config.forceinit) {
adapter.objects.getObjectList({startkey: adapter.name + '.' + adapter.instance, endkey: adapter.name + '.' + adapter.instance + '\u9999'}, function (err, res) {
res = res.rows;
for (let i = 0; i < res.length; i++) {
const id = res[i].doc.common.name;
adapter.log.debug('Remove ' + id + ': ' + id);
adapter.delObject(id, (res, err) => {
if (res !== undefined && res !== 'Not exists') adapter.log.error('res from delObject: ' + res);
if (err !== undefined) adapter.log.error('err from delObject: ' + err);
});
adapter.deleteState(id, (res, err) => {
if (res !== undefined && res !== 'Not exists') adapter.log.error('res from deleteState: ' + res);
if (err !== undefined) adapter.log.error('err from deleteState: ' + err);
});
}
});
}
adapter.subscribeStates('*');
adapter.objects.getObjectList({include_docs: true}, (err, res) => {
res = res.rows;
objects = {};
for (let i = 0; i < res.length; i++) {
objects[res[i].doc._id] = res[i].doc;
}
adapter.log.debug('received all objects');
main();
});
},
stateChange: function (id, state) {
adapter.log.debug('stateChange for ' + id + ' found state = ' + JSON.stringify(state));
if (state && !state.ack) {
if (id.indexOf('gpio.') !== -1) {
const parts = id.split('.');
parts.pop(); // remove state
writeGpio(parts.pop(), state.val);
}
}
},
unload: function (callback) {
if (gpio) {
gpio.destroy(() => callback && callback());
} else {
callback && callback()
}
}
});
function writeGpio(port, value) {
port = parseInt(port, 10);
if (!adapter.config.gpios[port] || !adapter.config.gpios[port].enabled) {
adapter.log.warn('Port ' + port + ' is not writable, because disabled.');
return;
} else if (adapter.config.gpios[port].input === 'true' || adapter.config.gpios[port].input === true) {
return adapter.log.warn('Port ' + port + ' is configured as input and not writable');
}
if (value === 'true') value = true;
if (value === 'false') value = false;
if (value === '0') value = false;
value = !!value;
try {
if (gpio) {
gpio.write(port, value, err => {
if (err) {
adapter.log.error(err);
} else {
adapter.log.debug('Written ' + value + ' into port ' + port);
adapter.setState('gpio.' + port + '.state', value, true);
}
});
} else {
adapter.log.error('GPIO is not initialized!');
}
} catch (error) {
adapter.log.error('Cannot write port ' + port + ': ' + error);
}
}
let objects;
let exec;
const rpi = {};
const table = {};
let config;
let oldstyle = false;
function main() {
// TODO: Check which Objects we provide
setInterval(parser, adapter.config.interval || 60000);
const version = process.version;
const va = version.split('.');
if (va[0] === 'v0' && va[1] === '10') {
adapter.log.debug('NODE Version = ' + version + ', we need new exec-sync');
exec = require('sync-exec');
oldstyle = true;
} else {
adapter.log.debug('NODE Version = ' + version + ', we need new execSync');
exec = require('child_process').execSync;
}
parser();
initPorts();
}
function parser() {
adapter.log.debug('start parsing');
// Workaround, WebStorm
if (config === undefined) {
config = adapter.config;
}
for (const c in config) {
if (!config.hasOwnProperty(c)) continue;
adapter.log.debug('PARSING: ' + c);
if (c.indexOf('c_') !== 0 && config['c_' + c] === true) {
table[c] = new Array(20);
const o = config[c];
for (const i in o) {
if (!o.hasOwnProperty(i)) continue;
adapter.log.debug(' PARSING: ' + i);
const object = o[i];
const command = object.command;
let regexp;
if (object.multiline !== undefined) {
regexp = new RegExp(object.regexp, 'm');
} else {
regexp = new RegExp(object.regexp);
}
const post = object.post;
adapter.log.debug('---> ' + command);
let stdout;
try {
if (oldstyle) {
stdout = exec(command).stdout;
} else {
stdout = exec(command).toString();
}
adapter.log.debug('------------- ' + stdout);
} catch (er) {
adapter.log.debug(er.stack);
if (er.pid) console.log('%s (pid: %d) exited with status %d',
er.file, er.pid, er.status);
// do not process if exec fails
continue;
}
const match = regexp.exec(stdout);
adapter.log.debug('---> REGEXP: ' + regexp);
if (match !== undefined && match !== null && match.length !== undefined) {
adapter.log.debug('GROUPS: ' + match.length);
}
// TODO: if Group Match is bigger then 2
// split groups and header into seperate objects
if (match !== undefined && match !== null && match.length > 2) {
const lname = i.split(',');
for (let m = 1; m < match.length; m++) {
const value = match[m];
const name = lname[m - 1];
adapter.log.debug('MATCHING: ' + value);
adapter.log.debug('NAME: ' + name + ', VALULE: ' + value);
rpi[name] = value;
table[c][i] = value;
}
} else {
adapter.log.debug('---> POST: ' + post);
let value;
if (match !== undefined && match !== null) {
value = match[1];
} else {
value = stdout;
}
rpi[i] = value;
table[c][i] = value;
}
}
}
}
// TODO: Parse twice to get post data and evaluate
for (const c in config) {
if (!config.hasOwnProperty(c)) continue;
adapter.log.debug('CURRENT = ' + c + ' ' + config['c_' + c]);
adapter.log.debug(c.indexOf('c_'));
if (c.indexOf('c_') !== 0 && config['c_' + c]) {
if (objects[c] === undefined) {
const stateObj = {
common: {
name: c, // You can add here some description
role: 'sensor'
},
type: 'device',
_id: c
};
adapter.extendObject(c, stateObj);
}
const o = config[c];
for (const i in o) {
if (!o.hasOwnProperty(i)) {
continue;
}
const object = o[i];
const command = object.command;
const post = object.post;
adapter.log.debug('---> POST: ' + post + ' for ' + i + ' in ' + o);
let value;
const lname = i.split(',');
if (lname !== undefined && lname.length > 1) {
for (let m = 0; m < lname.length; m++) {
const name = lname[m];
value = rpi[name];
// TODO: Check if value is number and format it 2 Digits
if (!isNaN(value)) {
value = parseFloat(value);
const re = new RegExp(/^\d+\.\d+$/);
if (re.exec(value)) {
value = value.toFixed(2);
}
}
adapter.log.debug('MATCHING: ' + value);
adapter.log.debug('NAME: ' + name + ' VALULE: ' + value);
const objectName = adapter.name + '.' + adapter.instance + '.' + c + '.' + name;
adapter.log.debug('SETSTATE FOR ' + objectName + ' VALUE = ' + value);
if (objects[objectName] === undefined) {
// TODO Create an Object tree
const stateObj = {
common: {
name: objectName, // You can add here some description
read: true,
write: false,
state: 'state',
role: 'value',
type: 'number'
},
type: 'state',
_id: objectName
};
adapter.extendObject(objectName, stateObj);
}
adapter.setState(objectName, {
val: value,
ack: true
});
}
} else {
value = rpi[i];
if (value !== undefined && value !== '' && value !== null) {
if (post.indexOf('$1') !== -1) {
adapter.log.debug('VALUE: ' + value + ' POST: ' + post);
try {
value = eval(post.replace('$1', value));
} catch (e) {
adapter.log.error('Cannot evaluate: ' + post.replace('$1', value));
value = NaN;
}
}
// TODO: Check if value is number and format it 2 Digits
if (!isNaN(value)) {
value = parseFloat(value);
const r = new RegExp(/^\d+\.\d+$/);
if (r.exec(value)) {
value = value.toFixed(2);
}
}
const objectName = adapter.name + '.' + adapter.instance + '.' + c + '.' + i;
adapter.log.debug('SETSTATE FOR ' + objectName + ' VALUE = ' + value);
if (objects[objectName] === undefined) {
// TODO Create an Objecttree
const stateObj = {
common: {
name: objectName, // You can add here some description
read: true,
write: false,
state: 'state',
role: 'value',
type: 'mixed'
},
type: 'state',
_id: objectName
};
adapter.extendObject(objectName, stateObj);
}
adapter.setState(objectName, {
val: value,
ack: true
});
} else {
if (i === 'wifi_send' || i === 'wifi_received') {
adapter.log.debug('No Value found for ' + i);
} else if (! errorsLogged[i]) {
adapter.log.error('No Value found for ' + i);
errorsLogged[i] = true;
}
}
}
}
}
}
}
function readValue(port) {
if (!gpio) {
return adapter.log.error('GPIO is not initialized!');
}
gpio.read(port, (err, value) => {
if (err) {
adapter.log.error('Cannot read port ' + port + ': ' + err);
} else {
adapter.setState('gpio.' + port + '.state', !!value, true);
}
});
}
function syncPort(port, data, callback) {
adapter.getObject('gpio.' + port + '.state', (err, obj) => {
if (data.enabled) {
if (data.input === 'true') data.input = true;
if (data.input === 'false') data.input = false;
if (err || !obj || !obj.common) {
obj = {
common: {
name: 'GPIO ' + port,
type: 'boolean',
role: data.input ? 'indicator' : 'switch',
read: data.input,
write: !data.input
},
native: {
},
type: 'state'
};
adapter.setObject('gpio.' + port + '.state', obj, () =>
syncPortDirection(port, data, callback));
} else {
if (obj.common.read !== data.input) {
obj.common.read = data.input;
obj.common.write = !data.input;
adapter.setObject('gpio.' + port + '.state', obj, () =>
syncPortDirection(port, data, callback));
} else {
syncPortDirection(port, data, callback);
}
}
} else {
if (obj && obj.common) {
adapter.delObject('gpio.' + port + '.state', () =>
adapter.delState('gpio.' + port + '.state', () =>
syncPortDirection(port, data, callback)));
} else {
syncPortDirection(port, data, callback);
}
}
});
}
function syncPortDirection(port, data, callback) {
adapter.getObject('gpio.' + port + '.isInput', (err, obj) => {
if (data.enabled) {
if (err || !obj || !obj.common) {
obj = {
common: {
name: 'GPIO ' + port + ' direction',
type: 'boolean',
role: 'state',
read: true,
write: false
},
native: {
},
type: 'state'
};
adapter.setObject('gpio.' + port + '.isInput', obj, () =>
adapter.setState('gpio.' + port + '.isInput', !data.input, true, callback));
} else {
adapter.setState('gpio.' + port + '.isInput', data.input, true, callback);
}
} else {
if (obj && obj.common) {
adapter.delObject('gpio.' + port + '.isInput', () =>
adapter.delState('gpio.' + port + '.isInput', callback));
} else {
if (callback) callback();
}
}
});
}
function initPorts() {
let anyEnabled = false;
let anyInputs = false;
if (adapter.config.gpios && adapter.config.gpios.length) {
for (let pp = 0; pp < adapter.config.gpios.length; pp++) {
if (!adapter.config.gpios[pp] || !adapter.config.gpios[pp].enabled) continue;
anyEnabled = true;
if (adapter.config.gpios[pp].input === 'true' || adapter.config.gpios[pp].input === true) {
anyInputs = true;
}
}
}
if (anyEnabled) {
try {
gpio = require('rpi-gpio');
gpio.setMode(gpio.MODE_BCM);
} catch (e) {
gpio = null;
console.error('cannot use GPIO: ' + e);
}
}
if (adapter.config.gpios && adapter.config.gpios.length) {
let count = 0;
for (let p = 0; p < adapter.config.gpios.length; p++) {
if (!adapter.config.gpios[p]) continue;
syncPort(p, adapter.config.gpios[p] || {});
if (gpio && adapter.config.gpios[p].enabled) {
if (adapter.config.gpios[p].input === 'true') adapter.config.gpios[p].input = true;
if (adapter.config.gpios[p].input === 'false') adapter.config.gpios[p].input = false;
if (adapter.config.gpios[p].input) {
count++;
(function (port){
gpio.setup(port, gpio.DIR_IN, gpio.EDGE_BOTH, err => {
if (!err) {
readValue(port);
} else {
adapter.log.error('Cannot setup port ' + port + ' as input: ' + err);
}
if (!--count) {
adapter.log.debug('Register onchange handler');
// register on change handler
gpio.on('change', (port, value) => {
adapter.log.debug('GPIO change on port ' + port + ': ' + value);
adapter.setState('gpio.' + port + '.state', !!value, true);
});
}
});
})(p);
} else {
(function (port){
gpio.setup(port, gpio.DIR_OUT, err =>
err && adapter.log.error('Cannot setup port ' + port + ' as output: ' + err));
})(p);
}
}
}
} else {
adapter.log.info('GPIO ports are not configured');
}
}