#!/usr/bin/env python
# encoding: utf-8
"""
audiofiles.py

Copyright (c) 2009 marcc (Marc Crovic).

Permission is hereby granted, free of charge, to any person
obtaining a copy of this software and associated documentation
files (the "Software"), to deal in the Software without
restriction, including without limitation the rights to use,
copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following
conditions:

The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE
"""

import sys
import os


def get_audio(rootdir, summary=False):
    """Finds audio files by recursively walking the filesystem from the path
    'rootdir', looking for audio files of several formats.

    Builds a list of full file paths. Setting the optional summary argument
    to true skips list building and returns a count of audio files.
    """
    file_list = []
    # feel free to edit these
    # TODO read in from a text file
    ext = ['.aa3', '.aac', '.aif', '.aiff', '.ape', '.au' , '.flac', '.m3u',
           '.m4a', '.m4b', '.m4p', '.m4r', '.mid', '.midi', '.mp2', '.mp3',
           '.mpa', '.ogg', '.ra', '.ram', '.shn', '.wav', '.wma']
    res_msg = '%d audio files found in %s'
    # don't get burned by upper case file extensions.
    # after all, who knows where your audio files came from...
    audio_ext = tuple(ext + [e.upper() for e in ext])
    if summary is True:
        file_count = 0
    for root, dirs, files in os.walk(rootdir):
        for filename in files:
            if filename.endswith(audio_ext):
                if summary is True:
                    file_count += 1
                else:
                    file_list.append(os.path.join(root, filename))
    if summary is True:
        print res_msg % (file_count, rootdir)
        return file_count
    else:
        for filepath in file_list:
            print filepath
        print res_msg % (len(file_list), rootdir)
        return file_list
#end get_audio
if __name__ == '__main__':
    if len(sys.argv) == 1: # if no arguments
        msg = ['\nThis script takes one required argument, the path from ',
                'which to recursively build a list of audio files.\n\nIt',
                ' also takes an optional switch of "-c" if you only want to ',
                'count (and not list) audio files.\n\nUsage:\npython ',
                'audiofiles.py /tmp/bt/\npython audiofiles.py ~/Music/ -c\n']
        usage = ''.join(msg)
        sys.exit(usage)
    else:
        rootdir = sys.argv[1]
    summary = False
    if len(sys.argv) > 2:
        if '-c' in sys.argv[2:]:
            summary = True
    get_audio(rootdir, summary)