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node_helper.js
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node_helper.js
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'use strict';
/* Magic Mirror
* Module: MMM-HASS
*
* Simple transposition of Benjamin Roesner´s MMM-FHEM
* to use it with home assistant
*
* GNU GPL v3.0
*/
const NodeHelper = require('node_helper');
var request = require('request');
var _ = require('underscore');
module.exports = NodeHelper.create({
start: function() {
this.config = {};
},
buildHassUrl: function(devicename, config) {
var url = config.host;
if (config.port) {
url = url + ':' + config.port;
}
url = url + '/api/states/' + devicename;
if (config.apipassword) {
url = url + '?api_password=' + config.apipassword;
}
if(config.debuglogging) {
console.log(url);
}
if (config.https) {
return 'https://' + url;
} else {
return 'http://' + url;
}
},
buildHassEventUrl: function(domain, service, config) {
var url = config.host;
if (config.port) {
url = url + ':' + config.port;
}
url = url + '/api/services/' + domain + '/' + service;
if (config.apipassword) {
url = url + '?api_password=' + config.apipassword;
}
if(config.debuglogging) {
console.log(url);
}
if (config.https) {
return 'https://' + url;
} else {
return 'http://' + url;
}
},
/**
* use fhem alias as label if it is set
* @param {object} device fhem device object
* @return {string}
*/
getDeviceName: function(attributes) {
if (attributes.friendly_name) {
return attributes.friendly_name;
} else {
return attributes.entity_id;
}
},
getReadingsValue: function(readingsName, attributes) {
var values = [];
readingsName.forEach(function(element, index, array) {
var readingName = element;
if (attributes[readingName]) {
values.push(attributes[readingName]);
} else {
values.push('Reading does not exist');
}
});
return values;
},
parseJson: function(index, json) {
var self = this;
if(config.debuglogging) {
console.log(json.attributes);
}
var device = {};
// save value of property 'sensor' an array
var readings = _.pluck(self.config.devices[index].deviceReadings, function(element, index, list) {
return
});
//console.log(readingsName);
device.name = config.devices[index].deviceLabel;
device.values = readings;
return device;
},
sendHassEvent: function(config, domain, service, params) {
var self = this;
var urlstr = self.buildHassEventUrl(domain, service, config);
var post_options = {
url: urlstr,
method: 'POST',
json: params
};
if(config.hassiotoken) {
post_options.headers = { 'Authorization' : 'Bearer ' + config.token };
}
var post_req = request(post_options, function(error, response, body) {
if(config.debuglogging) {
console.log('Response: ' + response.statusCode);
}
});
},
getHassReadings: function(config, callback) {
var self = this;
//console.log(config.devices);
var structuredData = _.each(config.devices, function(device) {
var outDevice = {};
if(config.debuglogging) {
console.log(device);
}
var readings = device.deviceReadings;
var urls = [];
// First, build a list of url for all the readings
//
readings.forEach(function(element, index, array) {
var url = self.buildHassUrl(element.sensor, config);
console.log('Request URL: ' + url);
urls.push(url);
});
//console.log(urls);
var completed_requests = 0;
// Then, get all the json for the device
//
var i;
for (i in urls) {
var get_options = {
url: urls[i],
json: true
};
if(config.hassiotoken) {
get_options.headers = { 'Authorization' : 'Bearer ' + config.token };
}
request(get_options, function(error, response, body) {
completed_requests++;
if(config.debuglogging) {
console.log(error);
console.log(body);
}
outDevice[body.entity_id] = body.state;
if (completed_requests == urls.length) {
// All requests done for the device, process responses array
// to retrieve all the states
outDevice.label = device.deviceLabel;
console.log(outDevice);
callback(outDevice);
}
});
}
});
},
// Subclass socketNotificationReceived received.
socketNotificationReceived: function(notification, payload) {
if (notification === 'GETDATA') {
var self = this;
self.config = payload;
var structuredData = {};
var completed_devices = 0;
this.getHassReadings(this.config, function(device) {
completed_devices++;
structuredData[device.label] = device;
if (completed_devices == self.config.devices.length) {
self.sendSocketNotification('DATARECEIVED', structuredData);
}
});
} else if (notification === 'HASS_1') {
var self = this;
this.sendHassEvent(this.config, 'media_player', 'select_source', {
'entity_id': 'media_player.menjador',
'source': 'Tria asm'
});
} else if (notification === 'HASS_2') {
var self = this;
this.sendHassEvent(this.config, 'switch', 'turn_on', {
'entity_id': 'switch.cuina'
});
}
}
});