#!/usr/bin/env ruby
require 'net/http'

SLIKE_HOST = 'slike.hr'
SLIKE_UPLOAD_URL = '/upload.php'

class Slikehr

	def initialize
	end
	
	def upload(file, resize = '0')
		request = {'resize' => resize}
		
		header, data = create_multipart_post_query(file, request)
		http = Net::HTTP.new(SLIKE_HOST, 80)
		begin
			response = http.post(SLIKE_UPLOAD_URL, data, header).body
			url = response.chomp.match('(\[URL=http:\/\/slike\.hr\]\[IMG\])(.*)(\[\/IMG\]\[\/URL\])')[2]
			return response_ok({'url' => url})
		rescue
			return response_fail(response)
		end
	end
	
	def create_multipart_post_query(file, request)
		boundary = '------------------------AaBbCcDdEeFfGgHhIiJjKkLlMmNnOoPp'
		header = {'Content-Type' => 'multipart/form-data; boundary=' + boundary }
		data = "--" + boundary + "\r\n"
		sorted_request = request.sort
		sorted_request.each do |value|
			data += 'Content-Disposition: form-data; name="' + value[0] + '"' + "\r\n\r\n"
			data += value[1] + "\r\n"
			data += "--" + boundary + "\r\n"
		end
		data += 'Content-Disposition: form-data; name="f1"; filename="' + file + '"' + "\r\n"
		data += 'Content-Type: image/jpeg' + "\r\n\r\n"
		data += IO.readlines(file).to_s + "\r\n"
		data += "--" + boundary + "--\r\n"
		return header, data
	end
	
	private
	def response_ok(response)
		return {'status' => 'ok'}.merge(response)
	end

	def response_fail(response)
		return {'status' => 'fail'}.merge(response)
	end

end

if ARGV.length == 1
	slike = Slikehr.new
	response = slike.upload(ARGV[0])
	if response['status'] = 'ok'
		puts response['url']
	else
		puts 'Greska'
	end
else	
	puts 'Koristenje: slikehr slika.jpg'
end