require 'cinch'
    require 'ostruct'
    require 'open-uri'
    require 'json'
    require 'cinch/toolbox'

    module Cinch
      module Plugins
        class Weather
          include Cinch::Plugin

          set :required_options, [:key]
          set :prefix, /^~/
          set :help, <<-USAGE.gsub(/^ {6}/, '')
            Check the weather right from the IRC channel!
            Usage:
            * ~weather <location>: The bot will check the weather for the location you provide!
          USAGE

          match /weather (.+)/i, method: :current
          match /f (.+?) (.+)/i, method: :hourly
          match /df (.+?) (.+)/i, method: :daily

          def current(m, query)
            query.gsub! /\s/, '+'
            geometry = geolookup(query)
            return m.reply "No results found for #{query}." if geometry.nil?

            data = get_current(geometry)
            return m.reply 'Uh oh, there was a problem getting the specified weather data. Try again later.' if data.nil?

            locale = location_r(query)

            m.reply(current_summary(data, locale))
          end

          # Now we introduce a method to get the hourly up to 24hrs.

          def hourly(m, hour, query)
            query.gsub! /\s/, '+'
            geometry = geolookup(query)
            return m.reply "No results found for #{query}." if geometry.nil?

            locale = location_r(query)

            data = get_hourly(hour, geometry, locale)

            return m.reply 'Oh no! There was a problem fetching the specified weather data. Please try again later.' if data.empty?

            m.reply(hourly_summary(data,hour))
          end

          # Now we introduce a method to get the daily forecast.

          def daily(m, day, query)
            query.gsub! /\s/, '+'
            geometry = geolookup(query)
            return m.reply "No results found for #{query}." if geometry.nil?

            locale = location_r(query)

            data = get_daily(day, geometry, locale)

            return m.reply 'Oh no! There was a problem fetching the specified weather data. Please try again later.' if data.empty?

            m.reply(daily_summary(data,day))
          end

          # Fetch the location from Google Maps for the area the user is looking for to be passed into get_current.

          def geolookup(zipcode)
            raw_location = JSON.parse(open("http://maps.googleapis.com/maps/api/geocode/json?address=#{zipcode}&sensor=true").read)
            location = raw_location['results'][0]['geometry']['location']
            lat = location['lat']
            lng = location['lng']

            geometry = "#{lat},#{lng}"
            return geometry
          rescue
            nil
          end

          # Fetch the current weather data for the location found in geolookup.

          def get_current(geometry)
            key = config[:key]
            data = JSON.parse(open("https://api.forecast.io/forecast/#{key}/#{geometry}").read)
            current = data['currently']

            OpenStruct.new(
              conditions:    current['summary'],
              temp:          current['temperature'],
              feels_like:    current['apparentTemperature'],
              wind_speed:    current['windSpeed'],
              wind_bearing:  current['windBearing']
            )
            rescue
              nil
            end

          # Now we are going to fetch the hourly data.

          def get_hourly(hour, geometry, locale)
            key = config[:key]
            logo = "10Hourly Fore4cast:"
            data = JSON.parse(open("https://api.forecast.io/forecast/#{key}/#{geometry}").read)
            raw_hourly = data['hourly']['data']
            hourly = []
              for i in raw_hourly
                sum = i['summary']
                temp = i['temperature']
                feels_temp = i['apparentTemperature']
                wind = i['windSpeed']
                bear = i['windBearing']

                temp_c = (temp - 32) * 5 / 9
                feels_temp_c = (feels_temp - 32) * 5 / 9
                wind_speed_kph = wind * 1.6
                temp_c = (temp_c*10).ceil/10.0
                feels_temp_c = (feels_temp_c*10).ceil/10.0
                wind_speed_kph = (wind_speed_kph*10).ceil/10.0

            daily.push(("%s - #{locale}: Forecast Predicted in #{hour} hour(s): %s | Temp: [ %s °F (%s °C) | Will feel like: %s °F (%s °C) ] | Wind: [ Speed: %s MPH (%s KPH) | Bearing: %s ]" % [logo, sum, temp, temp_c, feels_temp, feels_temp_c, wind, wind_speed_kph, bear]))
          end
            return hourly
          end

          def hourly_summary(data, hour)
            return data[hour.to_i - 1]
          end

          # Now we are going to fetch the daily data.

          def get_daily(day, geometry, locale)
            key = config[:key]
            logo = "10Daily Fore4cast:"
            data = JSON.parse(open("https://api.forecast.io/forecast/#{key}/#{geometry}").read)
            raw_daily = data['daily']['data']
            daily = []
            for i in raw_daily
              sum = i['summary']
              min = i['temperatureMin']
              max = i['temperatureMax']
              appmin = i['apparentTemperatureMin']
              appmax = i['apparentTemperatureMax']
              wind = i['windSpeed']
              bear = i['windBearing']

            # We're going to convert it to metric as well, because IRC.

              temp_c_max = (max - 32) * 5 / 9
              temp_c_min = (min - 32) * 5 / 9
              feels_temp_c_min = (appmin - 32) * 5 / 9
              feels_temp_c_max = (appmax - 32) * 5 / 9
              wind_speed_kph = wind * 1.6
              temp_c_max = (temp_c_max*10).ceil/10.0
              temp_c_min = (temp_c_min*10).ceil/10.0
              feels_temp_c_min = (feels_temp_c_min*10).ceil/10.0
              feels_temp_c_max = (feels_temp_c_max*10).ceil/10.0
              wind_speed_kph = (wind_speed_kph*10).ceil/10.0

              daily.push(("%s - #{locale}: Forecast Predicted in #{day} day(s): %s | Temp: [ 10Min: %s °F (10#{temp_c_min} °C) | 4Max: %s °F (4#{temp_c_max} °C) ] - Will Feel Like: [ 10Min: %s °F (10#{feels_temp_c_min} °C) | 4Max: %s °F (4#{feels_temp_c_max} °C) ] | Wind: [ Speed: %s MPH (#{wind_speed_kph} KPH) | Bearing: %s ]" % [logo, sum, min, max, appmin, appmax, wind, bear]))
            end
            return daily
          end

          def daily_summary(data, day)
            return data[day.to_i - 1]
          end

          # We're gonna fetch the location data again so we can pass it into the results. Primitive, but it works.

          def location_r(location)
            raw_locale = JSON.parse(open("http://maps.googleapis.com/maps/api/geocode/json?address=#{location}&sensor=true").read)
            locale_data = raw_locale['results'][0]['formatted_address']

            locale = "#{locale_data}"
          end

          def current_summary(data, locale)
            # Converting Imperial for Metric, because it's sane when using a protocol like IRC to deliver this info

            temp_c = (data.temp - 32) * 5 / 9
            feels_temp_c = (data.feels_like - 32) * 5 / 9
            wind_speed_kph = data.wind_speed * 1.6
            temp_c = (temp_c*10).ceil/10.0
            feels_temp_c = (feels_temp_c*10).ceil/10.0
            wind_speed_kph = (wind_speed_kph*10).ceil/10.0

            # Now, deliver the info to IRC

            %Q{10Weather: #{locale} | Current Weather: #{data.conditions} | Temp: #{data.temp} °F (#{temp_c} °C) - Feels like: #{data.feels_like} °F (#{feels_temp_c} °C) | Wind: #{data.wind_speed} MPH (#{wind_speed_kph} KPH) - Bearing: #{data.wind_bearing}}
          end
        end
      end
    end