/*
 * Author: Zion Orent <zorent@ics.com>
 * Copyright (c) 2014 Intel Corporation.
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

//Load UPM module
var moisture = require('jsupm_moisture');

// Instantiate a Moisture sensor on analog pin A0
var myMoistureObj = new moisture.Moisture(0);

// Values (approximate):
// 0-300,   sensor in air or dry soil
// 300-600, sensor in humid soil
// 600+,    sensor in wet soil or submerged in water
// Read the value every second and print the corresponding moisture level
setInterval(function() {
    var result;
    var moisture_val = parseInt(myMoistureObj.value());
    if (moisture_val >= 0 && moisture_val < 300)
        result = "Dry";
    else if (moisture_val >= 300 && moisture_val < 600)
        result = "Moist";
    else
        result = "Wet";
    console.log("Moisture value: " + moisture_val + ", " + result);
}, 1000);

// Print message when exiting
process.on('SIGINT', function() {
    console.log("Exiting...");
    process.exit(0);
});
