#!/usr/bin/python

#Audio Tools, a module and set of tools for manipulating audio data
#Copyright (C) 2007-2012  Brian Langenberger

#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 2 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.

#You should have received a copy of the GNU General Public License
#along with this program; if not, write to the Free Software
#Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA


import sys
import os
import audiotools
import audiotools.ui
import gettext

gettext.install("audiotools", unicode=True)

if (__name__ == '__main__'):
    parser = audiotools.OptionParser(
        usage=_(u"%prog [options] [track #] [track #] ..."),
        version="Python Audio Tools %s" % (audiotools.VERSION))

    parser.add_option(
        '-V', '--verbose',
        action='store',
        dest='verbosity',
        choices=audiotools.VERBOSITY_LEVELS,
        default=audiotools.DEFAULT_VERBOSITY,
        help=_(u'the verbosity level to execute at'))

    parser.add_option(
        '-c', '--cdrom', action='store',
        type='string', dest='cdrom',
        default=audiotools.DEFAULT_CDROM)

    parser.add_option(
        '-s', '--speed', action='store',
        type='int', dest='speed')

    # parser.add_option(
    #     '--accuraterip',
    #     action='store_true',
    #     default=False,
    #     dest='accuraterip',
    #     help=_(u'attempt to fetch AccurateRip information'))

    conversion = audiotools.OptionGroup(parser, _(u"Extraction Options"))

    conversion.add_option(
        '-t', '--type',
        action='store',
        dest='type',
        choices=audiotools.TYPE_MAP.keys(),
        default=audiotools.DEFAULT_TYPE,
        help=_(u'the type of audio track to create'))

    conversion.add_option(
        '-q', '--quality',
        action='store',
        type='string',
        dest='quality',
        help=_(u'the quality to store audio tracks at'))

    conversion.add_option(
        "-d", "--dir", action='store', default='.',
        dest='dir',
        help=_(u"the directory to store extracted audio tracks"))

    conversion.add_option(
        '--format',
        action='store',
        type='string',
        default=None,
        dest='format',
        help=_(u'the format string for new filenames'))

    parser.add_option_group(conversion)

    lookup = audiotools.OptionGroup(parser, _(u"CD Lookup Options"))

    lookup.add_option(
        '--musicbrainz-server', action='store',
        type='string', dest='musicbrainz_server',
        default=audiotools.MUSICBRAINZ_SERVER,
        metavar='HOSTNAME')
    lookup.add_option(
        '--musicbrainz-port', action='store',
        type='int', dest='musicbrainz_port',
        default=audiotools.MUSICBRAINZ_PORT,
        metavar='PORT')
    lookup.add_option(
        '--no-musicbrainz', action='store_false',
        dest='use_musicbrainz',
        default=audiotools.MUSICBRAINZ_SERVICE,
        help='do not query MusicBrainz for metadata')

    lookup.add_option(
        '--freedb-server', action='store',
        type='string', dest='freedb_server',
        default=audiotools.FREEDB_SERVER,
        metavar='HOSTNAME')
    lookup.add_option(
        '--freedb-port', action='store',
        type='int', dest='freedb_port',
        default=audiotools.FREEDB_PORT,
        metavar='PORT')
    lookup.add_option(
        '--no-freedb', action='store_false',
        dest='use_freedb',
        default=audiotools.FREEDB_SERVICE,
        help='do not query FreeDB for metadata')

    lookup.add_option(
        '-I', '--interactive',
        action='store_true',
        default=False,
        dest='interactive',
        help=_(u'edit metadata in interactive mode'))

    lookup.add_option(
        '-D', '--default',
        dest='use_default', action='store_true', default=False,
        help=_(u'when multiple choices are available, ' +
               u'select the first one automatically'))

    parser.add_option_group(lookup)

    metadata = audiotools.OptionGroup(parser, _(u"Metadata Options"))

    metadata.add_option(
        '--album-number',
        dest='album_number',
        action='store',
        type='int',
        default=0,
        help=_(u'the album number of this CD, ' +
               u'if it is one of a series of albums'))

    metadata.add_option(
        '--album-total',
        dest='album_total',
        action='store',
        type='int',
        default=0,
        help=_(u'the total albums of this CD\'s set, ' +
               u'if it is one of a series of albums'))

    #if adding ReplayGain is a lossless process
    #(i.e. added as tags rather than modifying track data)
    #add_replay_gain should default to True
    #if not, add_replay_gain should default to False
    #which is which depends on the track type
    metadata.add_option(
        '--replay-gain',
        action='store_true',
        dest='add_replay_gain',
        help=_(u'add ReplayGain metadata to newly created tracks'))

    metadata.add_option(
        '--no-replay-gain',
        action='store_false',
        dest='add_replay_gain',
        help=_(u'do not add ReplayGain metadata in newly created tracks'))

    parser.add_option_group(metadata)

    (options, args) = parser.parse_args()
    msg = audiotools.Messenger("cd2track", options)

    #ensure interactive mode is available, if selected
    if (options.interactive and (not audiotools.ui.AVAILABLE)):
        audiotools.ui.not_available_message(msg)
        sys.exit(1)

    #get the AudioFile class we are converted to
    AudioType = audiotools.TYPE_MAP[options.type]

    if (options.add_replay_gain is None):
        options.add_replay_gain = AudioType.lossless_replay_gain()

    #ensure the selected compression is compatible with that class
    if (options.quality == 'help'):
        if (len(AudioType.COMPRESSION_MODES) > 1):
            msg.info(_(u"Available compression types for %s:") % \
                         (AudioType.NAME))
            for mode in AudioType.COMPRESSION_MODES:
                msg.new_row()
                if (mode == audiotools.__default_quality__(AudioType.NAME)):
                    msg.output_column(msg.ansi(mode.decode('ascii'),
                                               [msg.BOLD,
                                                msg.UNDERLINE]), True)
                else:
                    msg.output_column(mode.decode('ascii'), True)
                if (mode in AudioType.COMPRESSION_DESCRIPTIONS):
                    msg.output_column(u" : ")
                else:
                    msg.output_column(u"   ")
                msg.output_column(
                    AudioType.COMPRESSION_DESCRIPTIONS.get(mode, u""))
            msg.info_rows()
        else:
            msg.error(_(u"Audio type %s has no compression modes") % \
                          (AudioType.NAME))
        sys.exit(0)
    elif (options.quality is None):
        options.quality = audiotools.__default_quality__(AudioType.NAME)
    elif (options.quality not in AudioType.COMPRESSION_MODES):
        msg.error(_(u"\"%(quality)s\" is not a supported " +
                    u"compression mode for type \"%(type)s\"") % \
                        {"quality": options.quality,
                         "type": AudioType.NAME})
        sys.exit(1)

    quality = options.quality
    base_directory = options.dir

    try:
        cdda = audiotools.CDDA(options.cdrom, options.speed)
    except IOError, err:
        msg.error(unicode(err) + _(u". Is that an audio cd ?"))
        sys.exit(-1)

    if (len(cdda) == 0):
        msg.error(_(u"No CD in drive"))
        sys.exit(1)

    #use CDDA object to query metadata services for metadata choices
    metadata_choices = cdda.metadata_lookup(
        musicbrainz_server=options.musicbrainz_server,
        musicbrainz_port=options.musicbrainz_port,
        freedb_server=options.freedb_server,
        freedb_port=options.freedb_port,
        use_musicbrainz=options.use_musicbrainz,
        use_freedb=options.use_freedb)

    #update MetaData with command-line album-number/total, if given
    if (options.album_number != 0):
        for c in metadata_choices:
            for m in c:
                m.album_number = options.album_number

    if (options.album_total != 0):
        for c in metadata_choices:
            for m in c:
                m.album_total = options.album_total

    #decide which metadata to use to tag extracted tracks
    if (options.interactive):
        #pick choice using interactive widget
        metadata_widget = audiotools.ui.MetaDataFiller(metadata_choices)
        loop = audiotools.ui.urwid.MainLoop(
            metadata_widget,
            [('key', 'white', 'dark blue')],
            unhandled_input=metadata_widget.handle_text)
        loop.run()

        track_metadatas = dict([(m.track_number, m) for m in
                                metadata_widget.populated_metadata()])
    else:
        if ((len(metadata_choices) == 1) or options.use_default):
            #use default choice
            track_metadatas = dict([(m.track_number, m) for m in
                                    metadata_choices[0]])
        else:
            #pick choice using raw stdin/stdout
            track_metadatas = \
                dict([(m.track_number, m) for m in
                      audiotools.ui.select_metadata(metadata_choices, msg)])

    if (len(args) == 0):
        to_rip = [track for track in cdda]
    else:
        to_rip = []
        for arg in args:
            try:
                to_rip.append(cdda[int(arg)])
            except IndexError:
                continue
            except ValueError:
                continue
        to_rip.sort(lambda x, y: cmp(x.track_number, y.track_number))

    encoded = []
    rip_log = {}
    for cd_track in to_rip:
        basename = "track%2d%2.2d" % (options.album_number,
                                      cd_track.track_number)

        try:
            metadata = track_metadatas.get(cd_track.track_number, None)

            filename = os.path.join(
                base_directory,
                AudioType.track_name(file_path=basename,
                                     track_metadata=metadata,
                                     format=options.format))

            try:
                audiotools.make_dirs(filename)
            except OSError, err:
                msg.os_error(err)
                sys.exit(1)

            progress = audiotools.SingleProgressDisplay(
                msg, msg.filename(filename))

            track = AudioType.from_pcm(
                filename,
                audiotools.PCMReaderProgress(
                    cd_track,
                    cd_track.length() * (44100 / 75),
                    progress.update),
                quality)

            track.set_metadata(metadata)
            progress.clear()

            encoded.append(track)

            rip_log[cd_track.track_number] = cd_track.rip_log
            # if (options.accuraterip):
            #     if (db_entry is not None):
            #         for entry in db_entry[cd_track.track_number - 1]:
            #             if (entry.crc == int(cd_track.accuraterip_crc)):
            #                 rip_log[cd_track.track_number]["accuraterip"] = \
            #                     _(u"confidence %d") % (entry.confidence)
            #                 break
            #         else:
            #             rip_log[cd_track.track_number]["accuraterip"] = \
            #                 _(u"unverified")
            #     else:
            #         rip_log[cd_track.track_number]["accuraterip"] = \
            #             _(u"unknown")

            msg.info(_(u"track %(track_number)2.2d -> %(filename)s") % \
                         {"track_number": cd_track.track_number,
                          "filename": msg.filename(track.filename)})
        except audiotools.UnsupportedTracknameField, err:
            err.error_msg(msg)
            sys.exit(1)
        except KeyError:
            continue
        except audiotools.InvalidFormat, err:
            msg.error(unicode(err))
            sys.exit(1)
        except audiotools.EncodingError, err:
            msg.error(_(u"Unable to write \"%s\"") % (msg.filename(filename)))
            sys.exit(1)

    cdda.close()

    if (audiotools.ADD_REPLAYGAIN and
        options.add_replay_gain and
        AudioType.can_add_replay_gain()):
        rg_progress = audiotools.ReplayGainProgressDisplay(
            msg, AudioType.lossless_replay_gain())
        rg_progress.initial_message()
        try:
            #all audio files must belong to the same album, by definition
            AudioType.add_replay_gain([f.filename for f in encoded],
                                      rg_progress.update)
        except ValueError, err:
            rg_progress.clear()
            msg.error(unicode(err))
            sys.exit(1)
        rg_progress.final_message()

    #display ripping log
    msg.output(_("Rip log : "))
    msg.new_row()
    headers = [u"track", u"rderr", u"skip", u"atom",
               u"edge", u"drop", u"dup", u"drift"]
    keys = ["rderr", "skip", "atom", "edge", "drop", "dup", "drift"]
    # if (options.accuraterip):
    #     headers.append(u"   AccurateRip")
    #     keys.append("accuraterip")
    dividers = []
    for header in headers:
        msg.output_column(header, True)
        dividers.append(u'-')
        if (header != headers[-1]):
            msg.output_column(u" ")
            dividers.append(u" ")
    msg.divider_row(dividers)
    for track_number in sorted(rip_log.keys()):
        msg.new_row()
        msg.output_column(unicode(track_number), True)
        msg.output_column(u" ")
        log = rip_log[track_number]
        for key in keys:
            msg.output_column(unicode(log.get(key, 0)), True)
            if (key != keys[-1]):
                msg.output_column(u" ")
    msg.output_rows()
