class Track < ActiveRecord::Base
	set_table_name 'musicbrainz.bh_track'
	
	@@bad_names = [
		'[silence]'
	]
	
	def self.getReleaseTracks(release_ids, group_by_release = false)
	
		tracks = Track
			.all(:conditions => ['release_id IN(?)', release_ids], :order => 'release_id ASC, position ASC')
			.map{|track| track.length = (track.length /= 1000).round; track}
		
		if group_by_release
			g_tracks = {}
			tracks.each do |track|
				if g_tracks[track.release_id].nil?
					g_tracks[track.release_id] = {}
				end
				g_tracks[track.release_id][track.id] = track
			end
			return g_tracks
		end
		
		tracks
	end
	
	def self.getUniqueReleaseTracks(release_ids)
		tracks = self.getReleaseTracks(release_ids, true)
		
		unique_tracks = []
		track_list = {
			'album'	=> [],
			'bonus'		=> []
		}
		
		tracks.shift[1].each do |track|
			unless @@bad_names.include?(track[1].name)
				track_list['album'] << track[1]
				unique_tracks << self.clearName(track[1].name)
			end
		end
		
		tracks.each do |group|
			group.each do |track|
				unless @@bad_names.include?(track[1].name) && unique_tracks.include?(self.clearName(track[1].name))
					track_list['bonus'] << track[1]
					unique_tracks << self.clearName(track[1].name)
				end
			end
		end
		
		track_list
	end
	
	def self.clearName(name)
		name.gsub('&', 'and').gsub(/[^a-z0-9]/, '').downcase
	end
end