#!/usr/local/bin/ruby
#!ruby

# Javascript Workspace Atom Feed
#
# Copyright (c) 2007 Takashi Yammaiya
#
# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation files
# (the "Software"), to deal in the Software without restriction,
# including without limitation the rights to use, copy, modify, merge,
# publish, distribute, sublicense, and/or sell copies of the Software,
# and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.

require "cgi"
require "time"

DATA_DIR = "jsdata" # data directory


cgi = CGI.new

print "Content-type: text/xml\n\n"
#print "Content-Type: application/atom+xml;  charset=utf-8\n\n"

base = File.dirname(cgi.script_name || 'local')

entries = Dir.entries(DATA_DIR).map do |name|

  matched = name.match(/(.*).txt$/)
  if (matched)
    path = DATA_DIR + "/" + name;
    title = CGI.unescape(matched[1])
    
    summary = ""
    open(path, "r") do |f|
      begin
        summary = CGI.escapeHTML(f.readline).chomp
      rescue EOFError
        summary = ""
      end
    end
    mtime = File.mtime(path).iso8601
    ctime = File.ctime(path).iso8601

    
    entry = {
      "path" => path,
      "title" => title,
      "mtime" => mtime,
      "ctime" => ctime,
      "url" => "http://#{cgi.host}#{base}/workspace.cgi/#{title}",
      "summary" => summary,
    }
  end
end

entries.reject! { | e | e == nil }
entries.sort! { | a, b | b["mtime"] <=> a["mtime"] }

mtime = entries.first["mtime"]

print <<EOT
<?xml version="1.0" encoding="utf-8"?>
<?xml-stylesheet href="atom.xslt" type="text/xsl"?>
<feed xmlns="http://www.w3.org/2005/Atom">
 <id>tag:metatoys.org,2007:javascriptworkspace/feed</id>
 <title>Javascript Workspace</title>
 <link href="http://metatoys.org"/>
 <author>
  <name>Takashi Yamamiya</name>
 </author>
 <updated>#{mtime}</updated>
EOT

entries.each do | entry |
  print " <entry>\n"
  print "  <id>#{entry["url"]}</id>\n"
  print "  <title>#{entry["title"]}</title>\n"
  print "  <link rel='alternate' href='#{entry["url"]}'/>\n"
  print "  <published>#{entry["ctime"]}</published>\n"
#  if (entry["mtime"] != entry["ctime"])
    print "  <updated>#{entry["mtime"]}</updated>\n"
#  end
  print "  <summary type='text'>#{entry["summary"]}</summary>\n"
  print " </entry>\n"
end

print "</feed>\n"