#!/bin/bash
# This script will list *all* audiofiles inside $basedir/$today
# Suggestion: if you want to have more than 1 file, please list them prefixed with numbers.

export LC_ALL=C  # so that sorting order is table

set -eu

baseDir=$1

is_audio() {
    mimeType=$(file --mime-type --brief "$1")
    if [[ "$mimeType" = audio/* ]]; then
        return 0
    else
        return 1
    fi
}

cd "$baseDir"
cd "$(date +%Y-%m-%d)"   # YYYY-MM-DD, like 1945-04-25
for file in *  # this should be alphabetically sorted
do
    if ! is_audio "$file"; then  # non-audio is ignored
        continue
    fi
    echo "file://$(realpath "$file")"
done