#!/usr/bin/env ruby -Ku

begin
  require "weatherhacks"
rescue LoadError
  require "rubygems"
  require "weatherhacks"
end

require "optparse"

OptionParser.new do |opt|
  opt.on("--list") do
    $mode = :list
  end
  opt.parse!
end

def temperature(forecast)
  line = []
  if forecast.celsius.min
    line << "最低気温" + forecast.celsius.min.to_s + "度"
  end
  if forecast.celsius.max
    line << "最高気温" + forecast.celsius.max.to_s + "度"
  end
  "(" + line.join(", ") + ")"
end

def show_forecast
  today = WeatherHacks::LWWS.request($city.id, :today)
  tomorrow = WeatherHacks::LWWS.request($city.id, :tomorrow)
  dayaftertomorrow = WeatherHacks::LWWS.request($city.id, :dayaftertomorrow)
  puts <<LOCATION
#{today.location.area}地方/#{today.location.pref}/#{today.location.city}
今日: #{today.telop}#{temperature(today)}
明日: #{tomorrow.telop}#{temperature(tomorrow)}
明後日: #{dayaftertomorrow.telop}#{temperature(dayaftertomorrow)}
LOCATION
end

case $mode
when :list
  WeatherHacks::ForecastMap::AREAS.each do |area|
    puts "[#{area.name}]"
    area.prefs.each do |pref|
      puts "#{pref.name}: " + pref.cities.map{|city| city.name}.join(", ")
    end
  end
else
  if ARGV[0] and WeatherHacks::ForecastMap::CITY.has_key?(ARGV[0])
    $city = WeatherHacks::ForecastMap::CITY[ARGV[0]]
  else
    puts "Unknown city name: " + ARGV[0]
    exit 0
  end
  show_forecast
end