#!/usr/bin/env ruby

require 'net/http'

program = ARGV[0]
idfile = File.dirname(program) + "/gyazo.app/Contents/Resources/id"

id = ''
if File.exist?(idfile) then
  id = File.read(idfile).chomp
else
  id = Time.new.strftime("%Y%m%d%H%M%S")
  File.open(idfile,"w").print(id+"\n")
end

tmpfile = "/tmp/image_upload#{$$}.png"
imagefile = ARGV[1]

if imagefile && File.exist?(imagefile) then
  system "sips -s format png #{imagefile} --out #{tmpfile}"
else
  system "screencapture -i #{tmpfile}"
end

imagedata = File.read(tmpfile)
File.delete(tmpfile)

boundary = '----BOUNDARYBOUNDARY----'

HOST = 'www.tumblr.com'
CGI = '/api/write'

email = 'ku0522a@example.com'
password = '***************'
type = 'photo';
generator = 'gyazo.tumblr';

data = <<EOF
--#{boundary}\r
content-disposition: form-data; name="email"\r
\r
#{email}\r
--#{boundary}\r
content-disposition: form-data; name="password"\r
\r
#{password}\r
--#{boundary}\r
content-disposition: form-data; name="type"\r
\r
#{type}\r
--#{boundary}\r
content-disposition: form-data; name="generator"\r
\r
#{generator}\r
--#{boundary}\r
content-disposition: form-data; name="caption"\r
\r
captured with <a href="http://gyazo.com/">Gyazo</a>.\r
--#{boundary}\r
content-disposition: form-data; name="data"\r
\r
#{imagedata}\r
\r
--#{boundary}--\r
EOF

header ={
  'Content-Length' => data.length.to_s,
  'Content-type' => "multipart/form-data; boundary=#{boundary}"
}

Net::HTTP.start(HOST,80){|http|
  res = http.post(CGI,data,header)
  url = res.response.to_ary[1]
  system "echo #{url} | pbcopy"
  system "open #{url}"
}