#
# Copyright Michael Orlitzky
#
# http://michael.orlitzky.com/
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# http://www.fsf.org/licensing/licenses/gpl.html
#

require 'src/website'

class Bliptv < Website

  VALID_BLIPTV_URL_REGEX = /^(http:\/\/)?([[:alnum:]\-]+\.)?blip\.tv\/file\/(\d+)(.*)?$/

  def self.owns_url?(url)
    return url =~ VALID_BLIPTV_URL_REGEX
  end

 
  def get_video_url()
    page_data = self.get_page_data(@url)    
    filepath = parse_video_url(page_data)
    
    return filepath
  end

  
  protected;

  
  def parse_video_url(page_data)
    # First, try to find the MOV video. The source videos are usually
    # encoded with MOV.
    video_url_regex = /"Quicktime \(\.mov\)", "attribute" : "(.*?\.mov)/i
    matches = video_url_regex.match(page_data)

    if not matches.nil?
      return matches[1]
    end

    # If that didn't work, try the WMV format, which is occasionally
    # used for the source as well.
    video_url_regex = /"Windows Media \(\.wmv\)", "attribute" : "(.*?\.wmv)/i
    matches = video_url_regex.match(page_data)

    if not matches.nil?
      return matches[1]
    end

    
    # If neither of the source formats are present, just grab the
    # video URL from the Flash variable and be done with it.
    video_url_regex = /setPrimaryMediaUrl\("(.*?\.(flv|mov|wmv|mp4))/i
    matches = video_url_regex.match(page_data)

    if matches.nil?
      raise StandardError.new("Couldn't parse any of the video format URLs.")
    end

    return matches[1]
  end

end