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lifx.js
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lifx.js
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var request = require('request');
var util = require('util');
function lifx(accessToken) {
this.accessToken = accessToken;
}
lifx.prototype.listLights = function(selector, cb) {
var url = createUri(this.accessToken, selector, "");
cb = cb || function() {};
sendRequest(url, "GET", null, function(err, res, body) {
err = checkStatusError(err, res);
return cb(err, body);
});
};
lifx.prototype.togglePower = function(selector, cb) {
var url = createUri(this.accessToken, selector, "/toggle");
cb = cb || function() {};
sendRequest(url, "POST", null, function(err, res, body) {
err = checkForErrors(err, res, body);
return cb(err, body);
});
};
lifx.prototype.setPower = function(selector, _power, _duration, cb) {
var url = createUri(this.accessToken, selector, "/state");
cb = cb || function() {};
var options = {
power: _power || "on",
duration: _duration || 1.0
};
sendRequest(url, "PUT", options, function(err, res, body) {
err = checkForErrors(err, res, body);
return cb(err, body);
});
};
lifx.prototype.setColor = function(selector, _color, _duration, _power_on, cb) {
var url = createUri(this.accessToken, selector, "/state");
cb = cb || function() {};
var options = {
power: true,
duration: _duration || 1.0,
color: _color || "red"
};
sendRequest(url, "PUT", options, function(err, res, body) {
err = checkForErrors(err, res, body);
return cb(err, body);
});
}
lifx.prototype.breatheEffect = function(selector, _color, _from_color, _period, _cycles, _persist, _power_on, _peak, cb) {
var url = createUri(this.accessToken, selector, "/effects/breathe");
cb = cb || function() {};
var options = {
color: _color || "red",
from_color: _from_color || "blue",
period: _period || 1.0,
cycles: _cycles || 1.0,
persist: _persist || false,
power_on: _power_on || true,
peak: _peak || 0.5
};
sendRequest(url, "POST", options, function(err, res, body) {
err = checkForErrors(err, res, body);
return cb(err, body);
});
}
lifx.prototype.pulseEffect = function(selector, _color, _from_color, _period, _cycles, _persist, _power_on, cb) {
var url = createUri(this.accessToken, selector, "/effects/pulse");
cb = cb || function() {};
var options = {
color: _color || "red",
from_color: _from_color || "blue",
period: _period || 1.0,
cycles: _cycles || 1.0,
persist: _persist || false,
power_on: _power_on || true
}
sendRequest(url, "POST", options, function(err, res, body) {
err = checkForErrors(err, res, body);
return cb(err, body);
});
}
//--------------Private Functions----------------
function sendRequest(_url, _method, _data, _cb) {
request({
url: _url,
method: _method,
json: true,
form: _data
}, function(error, response, body) {
_cb(error, response, body);
});
}
function createUri(token, selector, path) {
return util.format(
'https://%s:@api.lifx.com/v1/lights/%s%s',
token,
selector,
path);
}
function checkForErrors(err, res, body) {
if (err) {
return err;
}
err = checkStatusError(err, res);
if (err) {
return err;
}
if (body && body.results && body.results instanceof Array) {
if (body.results.length == 0) {
return "No lights found.";
} else {
return null;
}
} else {
return "Invalid object returned from lifx server";
}
}
function checkStatusError(err, res) {
if (err) {
return err;
}
if (res.statusCode !== 200 && res.statusCode !== 207) {
return "Invalid status code (" + res.statusCode + ") from lifx servers";
} else {
return null;
}
}
module.exports = lifx;