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weather_agent.rb 2.5KB

    require 'date' require 'cgi' module Agents class WeatherAgent < Agent cannot_receive_events! description <<-MD The WeatherAgent creates an event for the following day's weather at a given `location`. The `location` can be a US zipcode, or any location that Wunderground supports. To find one, search [wunderground.com](http://wunderground.com) and copy the location part of the URL. For example, a result for San Francisco gives `http://www.wunderground.com/US/CA/San_Francisco.html` and London, England gives `http://www.wunderground.com/q/zmw:00000.1.03772`. The locations in each are `US/CA/San_Francisco` and `zmw:00000.1.03772`, respectively. You must setup an [API key for Wunderground](http://www.wunderground.com/weather/api/) in order to use this Agent. MD event_description <<-MD Events look like this: { "location": 12345, "date": { "epoch": "1357959600", "pretty": "10:00 PM EST on January 11, 2013" }, "high": { "fahrenheit": "64", "celsius": "18" }, "low": { "fahrenheit": "52", "celsius": "11" }, "conditions": "Rain Showers", "icon": "rain", "icon_url": "http://icons-ak.wxug.com/i/c/k/rain.gif", "skyicon": "mostlycloudy", ... } MD default_schedule "8pm" def working? event_created_within(2) && !recent_error_logs? end def wunderground Wunderground.new(options[:api_key]) if key_setup? end def key_setup? options[:api_key] && options[:api_key] != "your-key" end def default_options { :api_key => "your-key", :location => "94103" } end def validate_options errors.add(:base, "location is required") unless options[:location].present? || options[:zipcode].present? errors.add(:base, "api_key is required") unless options[:api_key].present? end def check if key_setup? wunderground.forecast_for(options[:location] || options[:zipcode])["forecast"]["simpleforecast"]["forecastday"].each do |day| if is_tomorrow?(day) create_event :payload => day.merge(:location => options[:location] || options[:zipcode]) end end end end def is_tomorrow?(day) Time.zone.at(day["date"]["epoch"].to_i).to_date == Time.zone.now.tomorrow.to_date end end end