pull

#!/usr/bin/env node

var split = require('split')
var isJson = require('is-json')
var options = parseArgv(process.argv)
var child_process = require('child_process')
var url = require('url')
var _ = require('underscore')

// If help flag is set, print help text and exit.
if (options.hasOwnProperty('help')) {
  console.log('./push')
  console.log('  --public_key <public_key> Example: IFEfji3f3ns')
  console.log('  --private_key <private_key> Example:Xifesfisffsi')
  console.log('  --url <url> Example: http://farmos.pantheon.io')
  console.log('  --verbose Use for debug output')
  console.log('')
  console.log('Usage: ./pull --public_key temperature_probe1 --private_key IDFJEFIEFJ --url http://farmos.pantheon.io')
  console.log('[{"id": "temperature1", "value": 89, timestamp: 18473883747},{"id": "humidity1", "value": 20, timestamp: 18473883747 }]')
  console.log('')
  process.exit(0)
}

options.url = url.parse(options.url)
var destination = options.url.protocol + '//' + options.url.host + '/farm/sensor/listener/' + options.public_key + '?private_key=' + options.private_key
var cmd = 'curl -XGET ' + destination 
log('cmd:')
log(cmd)

child_process.exec(cmd, function(err, stdout, stderr) {
	//if (err) console.log(err)
	//if (stderr) console.log(stderr)
	console.log(stdout)
})

// This is the standard function for parsing process.argv. It will return
// an object that where `--argumentName` is a property name and the
// proceding argument is the value. If there is no proceeding value then
// it will be interpreted as a boolean true.
// @todo Consider argv-ee
function parseArgv(argv) {
  params = {}
  argv.forEach(function(arg, i) {
    if (arg.substr(0, 2) == '--') {
      paramName = arg.substr(2, arg.length)
      nextArg = argv[i+1]
      if ((typeof nextArg == 'string' && nextArg.substr(0, 2) == '--') || nextArg == undefined) {
        params[paramName] = true
      }
      else {
        params[paramName] = nextArg
      }
    }
  })
  return params
}

// A log function that will only log if the --verbose flag is set
function log(msg) {
  if (typeof msg == 'object') msg = JSON.stringify(msg)
  if (params.hasOwnProperty('verbose')) {
    console.log(msg)
    console.log('')
    console.log('')
  }
}