simongregory/auntie

# encoding: utf-8

# Lists BBC weather for the requested location
#
#
class Weather
  include ShellCharacters, ShellColors

  attr_reader :base_url

  def initialize(location, io = STDOUT)
    @io = io
    @base_url = "http://open.live.bbc.co.uk/weather/feeds/en/#{location}"
  end

  def hourly
    feed = load("#{base_url}/3hourlyforecast.json")

    location = feed['forecastContent']['location']['locationName']

    @io.puts "\nThe next 24 hours in #{location}\n\n"
    @io.puts "Day        Time    Weather            Max#{degrees_c}    Wind"

    feed['forecastContent']['forecasts'].each do |e|

      day = e['dayName'].ljust(10)
      time = e['timeSlot'].ljust(7)
      desc = e['weatherType'].ljust(19)

      temp = e['temperature']['centigrade'].to_s || '?'
      temp = "#{temp}#{degrees_c}".ljust(6)

      wind = e['wind']['directionDesc']
      # wind_dir = e['wind']['direction']
      wind_spd = e['wind']['windspeed']['mph'] || '?'
      wind_spd = "#{wind_spd}mph".ljust(5)

      # visibility = e['visibility']
      # millibars = e['pressureMillibars']
      # humidity = e['humidityPercent']
      # temp_colour = temp_to_color(temp.to_i)

      @io.puts "#{yellow day} #{time} #{desc} #{temp} #{wind_spd} #{wind}"
    end

    @io.puts "\n"
  end

  def daily
    feed = load("#{base_url}/3dayforecast.json")

    location = feed['forecastContent']['location']['locationName']

    @io.puts "\nThe next 3 days in #{location}\n\n"
    @io.puts "Day        Weather           Max#{degrees_c}  Wind"

    feed['forecastContent']['forecasts'].each do |e|
      day = sprintf '%-10s', e['dayName']

      d_weather = e['day']['weatherType']
      d_weather = sprintf '%-12s', d_weather unless d_weather.nil?

      d_temp = e['day']['maxTemperature']['centigrade']
      d_temp = "#{d_temp}\xC2\xB0C" unless d_temp.nil?

      d_wind = e['day']['wind']['directionDesc']
      d_wind_spd = e['day']['wind']['windspeed']['mph']
      d_wind_spd = "#{d_wind_spd}mph" unless d_wind_spd.nil?

      day_desc = sprintf '%-17s %-6s %-5s %-20s', d_weather, d_temp, d_wind_spd, d_wind

      n_weather = e['night']['weatherType']
      n_temp = e['night']['minTemperature']['centigrade']
      n_temp = "#{n_temp}\xC2\xB0C" unless n_temp.nil?

      night_desc = sprintf '%-17s %-3s', n_weather, n_temp

      @io.puts "#{yellow day} #{day_desc} #{cyan 'Night'} #{white night_desc}"
    end
  end

  private

  def load(url)
    begin
      raw = open(url, 'UserAgent' => AUNTIE::USER_AGENT).read
      JSON.parse(raw)
    rescue
      raise 'Unable to download the weather'
    end
  end

  # def temp_to_color(temp)
  #   case temp
  #   when -100..0 then blue(square_block)
  #   when 0..10 then yellow(square_block)
  #   else red(square_block)
  #   end
  # end
end