cue-importer.concept

Cue-importer:
On loading check if the cue-path field exists in library, else make it 

in config: cue-save-folder <- if not given save to album folder

user gives files or folder to import
cue-importer makes list of all cue files in folders (recursive) / files
for each file
    read cue file
        album name
        total tracks (with WAVE or MP3)
    Read Beets library
        find (album_)items with same totaltracks without cue-path
            Beets can determine the total seconds loaded, this could be used to determine the correct cue
        compare album name -> calc percentage (can Beets do this or is this a Musicbrainz thing?)
            if not doable with Beets, use libMusicBrainz??
    if percentage > 90% = copy
    if percentage < 90% = show options, let user choose
    if none = 
        library search of totaltracks with cue-path
        if found error with cue-path
        if again none
            give a error
    copy
        if cue-save-folder = FALSE
            read beets library item path of album (might need some magik ;)
        if cue-save-folder = TRUE
            determine difference album path and cue save path
        load cue to temp file
        for every line with WAVE of MP3
            determine track number (is easy by determine in wich for your in)
            read beets library item with album and track
            replace line with new file name relative to save destination new cue
        save new cue in correct folder
        add cue-path to beets library