=begin
# mixi_get_new_friend_diary

mixiのログインユーザのマイミクシィの最新日記一覧を取得する。

## 参考
ログイン部分の処理で利用させてもらいました。
設定ファイルも流用しているため、mixi_auth.yamlが必須
http://bmky.net/product/pragger/#mixi_get_diary_list

=end

require 'rubygems'
require 'mechanize'
require 'rss'
require 'kconv'

def mixi_get_new_friend_diary(config, data)
  mixi_login(config)

  rss_new_diary = get_mixi_rss("http://mixi.jp/atom/updates/r=1/member_id=#{@auth["id"]}/-/diary")
  rss_new_comment = get_mixi_rss("http://mixi.jp/atom/updates/r=1/member_id=#{@auth["id"]}/-/comment")

  items = Array.new
  items += generate_items(rss_new_diary)
  begin
    items += generate_items(rss_new_comment)
  rescue
    items += items.push "最近コメントした日記はありません"
  end
  return items
end

def mixi_login(config)
  @agent = WWW::Mechanize.new
  @auth = YAML.load( File.read( config['authfile'] ) )
  page = @agent.get( 'http://mixi.jp/' )
  form = page.forms[0]
  form.fields.find { |f| f.name == 'email'    }.value = @auth["email"]
  form.fields.find { |f| f.name == 'password' }.value = @auth["password"]
  form.fields.find { |f| f.name == 'next_url' }.value = '/home.pl'
  @agent.submit( form, form.buttons.first )
end

def get_mixi_rss(url)
  html = @agent.get_file(url)
  feed = RSS::Parser.parse(html)
  rss = convert_rss_from_atom(feed)
  return rss
end

def convert_rss_from_atom(feed)
  rss = feed.to_rss("2.0") do |maker|
    maker.channel.description ||= "no description"
  end
  return rss
end

def generate_items(rss)
  items = Array.new
  rss.items.each do |item|
    item = get_diary(item)
    items.push item
  end
  return items
end

def get_diary(item)
  page_diary = @agent.get(item.link)
  begin
    item.title = item.title + ' - ' + page_diary.parser.at('div.diaryTitleFriend').inner_text.strip.toutf8
  rescue
  end
  begin
    item.description << page_diary.parser.at('div#diary_body').inner_html.toutf8
  rescue
  end
  page_diary.parser.search('div.diaryCommentbox').each do |commentbox|
    item.description << parse_comment(commentbox)
  end
  return item
end

def parse_comment(commentbox)
  user_name = commentbox.at('span.commentTitleName').inner_text
  user_name_link = commentbox.at('span.commentTitleName').at(:a)["href"]
  begin
    date = commentbox.at('span.commentTitleDate').inner_text.gsub('?','')
  rescue
  end
  comment = commentbox.at('dd').inner_html
  body = <<EOF
<p>
<a href="http://mixi.jp/#{user_name_link}">#{user_name}</a>
----
#{date}
</p>
<p>
#{comment}
</p>

EOF

  return body.toutf8
end