image.md

main.rb

require 'opal-jquery'

gui  = `require('nw.gui')`
tray = `new gui.Tray({ title: 'weather', icon: 'sunny.gif', tooltip: 'weather loading' })`

def kelvin_to_fahrenheit(temp)
  ((temp - 273.15) * 1.8 + 32.0).round(1)
end

def icon(type)
  case type.downcase
  when /rain/  then 'rain.png'
  when /cloud/ then 'cloudy.png'
  when /sun/   then 'sunny.gif'
  else
    ''
  end
end

FIVE_MINS = 300000

def get_weather
  HTTP.get('http://api.openweathermap.org/data/2.5/weather?zip=78704,us') do |response|
    json  = response.json
    title = kelvin_to_fahrenheit(json['main']['temp'])
    icon  = icon(json['weather'][0]['main'])
    `tray.title = #{title} + 'F'`
    `tray.icon  = #{icon}`
  end
end


get_weather

%x{ setInterval(function () { #{ get_weather } }, #{FIVE_MINS}); }