"""Constants for different file and transcoding types."""

MIME_TYPE_FILE_JPEG = 'image/jpeg'
MIME_TYPE_FILE_PJPEG = 'image/pjpeg'
MIME_TYPE_FILE_TIFF = 'image/tiff'
MIME_TYPE_FILE_XTIFF = 'image/x-tiff'

MIME_TYPE_FILE_WAV = 'audio/wav'
MIME_TYPE_FILE_XWAV = 'audio/x-wav'
MIME_TYPE_FILE_VHDWAV = 'audio/vnd.wave'
MIME_TYPE_FILE_FLAC = 'audio/flac'
MIME_TYPE_FILE_XFLAC = 'audio/x-flac'
MIME_TYPE_FILE_MP4 = 'audio/mp4'
MIME_TYPE_FILE_XMP4 = 'audio/x-m4a'
MIME_TYPE_FILE_MP3 = 'audio/mp3'

WAV_MIME_TYPES = [
    MIME_TYPE_FILE_WAV,
    MIME_TYPE_FILE_XWAV,
    MIME_TYPE_FILE_VHDWAV,
]
FLAC_MIME_TYPES = [MIME_TYPE_FILE_FLAC, MIME_TYPE_FILE_XFLAC]
MP4_MIME_TYPES = [MIME_TYPE_FILE_MP4, MIME_TYPE_FILE_XMP4]

FILE_TYPES = {
    MIME_TYPE_FILE_JPEG: 'jpeg',
    MIME_TYPE_FILE_PJPEG: 'jpeg',
    MIME_TYPE_FILE_TIFF: 'tiff',
    MIME_TYPE_FILE_XTIFF: 'tiff',
    MIME_TYPE_FILE_WAV: 'wav',
    MIME_TYPE_FILE_XWAV: 'wav',
    MIME_TYPE_FILE_FLAC: 'flac',
    MIME_TYPE_FILE_XFLAC: 'flac',
    MIME_TYPE_FILE_MP4: 'mp4',
    MIME_TYPE_FILE_XMP4: 'm4a'
}

UNKNOWN_FILE_TYPE = 'unknown'

IMAGE_MIME_TYPES = (
    MIME_TYPE_FILE_JPEG, MIME_TYPE_FILE_PJPEG, MIME_TYPE_FILE_TIFF,
    MIME_TYPE_FILE_XTIFF)

AUDIO_MIME_TYPES = (
    MIME_TYPE_FILE_WAV, MIME_TYPE_FILE_XWAV,
    MIME_TYPE_FILE_FLAC, MIME_TYPE_FILE_XFLAC,
    MIME_TYPE_FILE_MP4, MIME_TYPE_FILE_XMP4)

AUDIO_TRANSCODING_TYPE = 'audio'
IMAGE_TRANSCODING_TYPE = 'image'
UNKNOWN_TRANSCODING_TYPE = 'unknown'

AVAILABLE_CHANNELS_MODE = {
    1: 'mono', 2: 'stereo'
}

ALAC_CODEC_NAME = 'alac'
FLAC_CODEC_NAME = 'flac'
PCM_CODEC_NAME = 'pcm'

CONTAINER_FLAC = 'flac'
CONTAINER_WAVE = 'wave'
CONTAINER_MPEG4 = 'mpeg-4'
CONTAINER_MPEG3 = 'mpeg audio'

CONTAINER_TO_MIME_MAPPING = {
    CONTAINER_FLAC: MIME_TYPE_FILE_FLAC,
    CONTAINER_WAVE: MIME_TYPE_FILE_WAV,
    CONTAINER_MPEG4: MIME_TYPE_FILE_MP4,
    CONTAINER_MPEG3: MIME_TYPE_FILE_MP3
}