#!/bin/bash

# Intercepte le ^C
trap 'exit 130' INT

## Read config file or create/update
config_filename=~/.config/$(basename ${0})
test -f ${config_filename} && . ${config_filename} || echo "# Fichier de configuration créé $(date +%c)" | tee ${config_filename}

### edit directory path music background
if [[ -z "${path_music_files+set}" ]]; then
    path_music_files=$(xdg-user-dir MUSIC)
    echo "path_music_files=${path_music_files}" | tee -a ${config_filename}
fi
if [[ -z "${path_music_files+set}" ]]; then
    path_music_files=~
    echo "path_music_files=${path_music_files}" | tee -a ${config_filename}
fi

### edit volume
if [[ -z "${volume+set}" ]]; then
    volume=0.06
    echo "volume=${volume}" | tee -a ${config_filename}
fi

## Init var
files=($path_music_files/*)

## execute

echo Process number $$
echo Path files : $path_music_files
echo Number of files in the path : ${#files[@]}

run_play=0
while [ ${run_play} -eq 0 ];do
    clear
    file=${files["$[RANDOM % ${#files[@]}]"]}

    # suppresion du fichier en cours de lecture
    new_files=()
    for file_keep in "${files[@]}"; do
          [[ "$file_keep" != "$file" ]] && new_files+=("$file_keep")
    done
    files=("${new_files[@]}")
    unset new_files

    # Nombre d'éléments dans le tableau
    elements_in_files=${#files[@]}
    
    echo -e "\n  => Now playing $file"
    echo -e "\n  => ${elements_in_files} files left"

    play -S -v $volume "$file"
    run_play=$(echo $?)

    if [ ${elements_in_files} -eq 0 ]; then
        run_play=2
    fi


done