fetch livedoor weather and growl it!

seikei.rb

#!/usr/bin/env ruby -Ku

require 'net/http'

require 'rubygems'
require 'rmagick'
include Magick

class Kakumaru
  def initialize(iconurl)
    @image = Magick::Image.read(iconurl.to_s.sub(/(.*\..*)\?.*/) {$1}).first
    @size = @image.columns < @image.rows ? @image.columns : @image.rows #短い方のピクセル数を代入
    @magsize = @size > 75 ? @size : @size * (75.div(@size) + 1) #75未満の場合拡大するサイズを指定
    @fill_in_color = 'white'    
  end

  def resize(x = 0, y = 0)
    #ToDo: crop時の設定をもっと詰める。わざわざcropを使っているので。
    image = @image.border(x, y, @fill_in_color).crop(CenterGravity,@size,@size)
    image.resize!(@magsize,@magsize,filter=LanczosFilter) unless @size == @magsize
    return image
  end
 
  def shori(image)
    image.alpha = ActivateAlphaChannel
    bg = Magick::Image.new(@magsize, @magsize) {self.background_color = 'none'}
    tn = (@magsize * 0.07).round
    Magick::Draw.new {self.fill = 'white'}.roundrectangle(0,0,@magsize,@magsize,tn,tn).draw(bg)
    image.composite!(bg, 0, 0, CopyOpacityCompositeOp)
    return image
  end

  def convert(iconsize = nil, x = 0, y = 0)
    image = resize(x, y)
    if iconsize then
      return shori(image).resize(iconsize, iconsize, filter=LanczosFilter)
    else
      return shori(image)
    end
  end 
end

tenki.rb

#!/usr/bin/env ruby -Ku

require 'net/http'
require 'open-uri'
require 'tempfile'

require File.dirname(__FILE__) + '/seikei.rb'

require 'rubygems'
require 'meow'
require 'nokogiri'

#notify forecast for livedoor
#notify current status for bbc
urls = ['http://weather.livedoor.com/area/34/90.html', 'http://news.bbc.co.uk/weather/forecast/2199']

def growl(title, message, icon, url)
  growl = Meow.new("天気予報")
  opt = { :icon => icon , :sticky => 'true'}
  growl.notify(title, message.chomp, opt) do
    system("open '#{url}'")
  end
end

def gicon(iconurl) 
  temp = Tempfile::new('growlicon', '/tmp')
  image = Kakumaru.new(iconurl).convert
  image.write('png:' + temp.path)
  temp.close
  icon = Meow.import_image(temp.path)
  temp.close(true) #closeしてtempfileを消す
  return icon
end

def fetch_livedoor(url)
  
  page = Nokogiri::HTML(open(url))

  results = []

  probs = []
  for n in 1..4
    probs << [page.xpath('//table[@class="normal"][1]/tr[1]/td')[n].text, page.xpath('//table[@class="normal"][1]/tr[2]/td')[n-1].text]
  end
  for n in 1..4
    probs << [page.xpath('//table[@class="normal"][2]/tr[1]/td')[n].text, page.xpath('//table[@class="normal"][2]/tr[2]/td')[n-1].text]
  end
  prob = probs.delete_if{|prob| prob[1] == '---'}.collect{|prob| prob.join('時: ')} 

  gaiyo = page.xpath('//div[@class="telopbox-etc"]/p').text

  for t in 1..2 
    if t == 1 then
      location = page.xpath('//li[@class="bdno on"]').text
      location = page.xpath('//div[@class="title-outer"][1]/h2').text.sub(/.*\ (.*)の天気/) { $1 } if location.empty?
      title = location + ': ' + page.xpath('//table[@class="normal"][1]//img/@alt').to_s
    else
      title = '明日の天気: ' + page.xpath('//table[@class="normal"][2]//img/@alt').to_s
    end

    kaze = page.xpath("//table[@class=\"normal\"][#{t}]/tr[3]/td").text 
    
    max = page.xpath("//table[@class=\"normal\"][#{t}]//span[@class=\"maxtemp\"]")
    maxtemp = max[1].text + ' ' + max[3].text if max[3]

    min = page.xpath("//table[@class=\"normal\"][#{t}]//span[@class=\"mintemp\"]")
    mintemp = min[1].text + ' ' + min[3].text if min[3]

    iconurl = page.xpath("//table[@class=\"normal\"][#{t}]//img/@src").to_s 

    if t == 1 then
      message = "降水確率 - #{prob[0]}\n"
    else
      message = ''
    end
    message << "最高気温 - #{maxtemp}\n" if max[3]
    message << "最低気温 - #{mintemp}\n" if min[3]
    if t == 2 then
      message << "\n降水確率\n"
      n = prob.map{|item| item.split('').length}.sort.last
      prob.length.times do |i|
        message << (prob[i].ljust(n) + "\n") #rjustにしたいがなぜかgrowl時にずれる…
      end
       message << "\n"
    end
    message << "風 - #{kaze}\n"
    message << "\n#{gaiyo}" if t == 1

    results << [title, message, gicon(iconurl)]
    
  end
  return results
end

def fetch_bbc(url)
  page = Nokogiri::HTML(Net::HTTP.get(URI(url)))
  location = page.xpath('//h2[@id="Forecast"]').text.split(',').first
  current = page.xpath('//div[@id="ob_V_node"]')
  iconurl = current.xpath('.//img/@src').to_s
  weather = current.xpath('.//img/@alt').to_s
  title = location + ': ' + weather 
  temp = 'Temperature: ' + current.xpath('.//li[@class="obstemp"]/span[3]/span[@class="cent"]').text + "\n"
  kaze = 'Wind: ' + current.xpath('.//span[@title="SW"]/span[@class="blq-hide"]').text + ' ' + current.xpath('.//span[@title="SW"]/span[@class="kph hide"]').text + "\n"
  extra = current.xpath('.//ul[@class="humpresvis"]').text.delete("\t")
  message =  temp + kaze + extra
  icon = gicon(iconurl)
  results = []
  results << [title, message, icon]
  return results
end

def notify(urls)
  urls.each do |url|
    results = fetch_livedoor(url) if url =~ /weather\.livedoor\.com/
    results = fetch_bbc(url) if url =~ /bbc\.co\.uk/
    results.each do |result|
      growl(result[0], result[1], result[2], url)
    end
  end
end

notify(urls)

todo: 別ファイルにしただけなのでseikei.rbをもっと自動化する

全体的に綺麗にした。

bbcのcurrent statusをfetchするようにした。天気予報は…お察しください