#!/usr/bin/env zsh

cat <<EOF
%rec: Album
%mandatory: Artist Album
%allowed: Year Collection Lossless
%type: Year int
%type: Lossless bool

EOF

setopt EXTENDED_GLOB
COLS=()
for col (cols/*) COLS=($COLS $col:t)
for name (*~cols) {
    ts=(${(s/-/)name})
    year=""
    for (( i=2 ; i <= $#ts ; i++ )) {
        [[ ${ts[$i]} =~ "^[0-9][0-9][0-9][0-9]$" ]] && {
            year=${ts[$i]}
            break
        }
    }
    [[ -n $year ]] && {
        artist=(${ts[1,$i-1]})
        album=(${ts[$i+1,-1]})
    } || {
        artist=${ts[1]}
        album=(${ts[2,-1]})
    }
    lossless=""
    if [[ -d $name ]] ; then
        wvs=($name/**/*.wv(N))
        [[ ${#wvs} -gt 0 ]] && lossless=1
    else
        [[ $name:e = wv ]] && lossless=1
    fi
    cols=()
    for col ($COLS) [[ -e cols/$col/$name ]] && cols=($cols $col)

    print "Artist: ${(j/-/)artist:gs/_/ /}"
    [[ -n $year ]] && print "Year: $year"
    print "Album: ${(j/-/)album:gs/_/ /}"
    [[ -n $lossless ]] && print "Lossless: yes"
    for col ($cols) print "Collection: $col"
    print
}