#!/bin/bash

# Includes
#-----------------------------------------------------------------------------------------------------------------------------------

. /usr/global/lib/music.bash





# System Constants
#-----------------------------------------------------------------------------------------------------------------------------------

   AML_NAME="album_metadata_load"
AML_VERSION="$Name: album_metadata_load-1_0_0-1 $"





# Print Version
#-----------------------------------------------------------------------------------------------------------------------------------

function version_print()
{
    echo ${AML_VERSION} | sed -e 's/.*: //' -e 's/-/ /' -e 's/_/\./g' -e 's/\$$//'
}





# Prin Help
#-----------------------------------------------------------------------------------------------------------------------------------

function help_print()
{
    echo "${AML_NAME} [-h | --help] | [-V | --version] | [-T | --test] [-v | --verbose] [-c | --clean] <source_dir> <target_dir> <metadata_file>"
}





# Arg Parse
#-----------------------------------------------------------------------------------------------------------------------------------

function args_parse()
{
              mode="default"
           verbose="false"
             clean="false"
        source_dir=""
        target_dir=""
     metadata_file=""

    tmp_args=$(getopt -o ThVvc --long test,help,version,verbose,clean -n "${AML_NAME}" -- "$@")

    if [ $? != 0 ] ; then echo "Terminating..." >&2 ; exit 1 ; fi

    # Note the quotes around `$TEMP': they are essential!
    eval set -- "${tmp_args}"

    while true ; do
	case "$1" in
	    # Options

	    # Mode switches
            -T|--test)                                         mode="test";                   shift;;
	    -h|--help)                                         mode="exit";    help_print;    shift;;
	    -V|--version)                                      mode="exit";    version_print; shift;;

	    # Global options
            -v|--verbose)                                   verbose="true";                   shift;;
            -c|--clean)                                       clean="true";                   shift;;

	    #   
	    --)                                                                              shift;  break;;
	    *) echo "args_parse internal error [$1] !"; exit 1;;
	esac
    done

    if [[ "${mode}" != "exit" ]]
    then
	if [[ "${#}" != "3" ]]
	then
	    if [[ "${#}" -lt "3" ]]
	    then
		echo "Not enough args!"
	    else
		echo "Too many args!"
	    fi

	    mode="exit"
	    help_print
	else
	       source_dir="$1"
	       target_dir="$2"
	    metadata_file="$3"
	fi
    fi
}





# Main
#-----------------------------------------------------------------------------------------------------------------------------------

args_parse "$@"

if [[ ${mode} == "exit" ]]
then
    exit 0
else
    if [[ ${mode} == "test" ]]
    then
	dry_run=true
    else
	dry_run=false
    fi
fi



echo "mode: [${mode}]   verbose: [${verbose}]   clean: [${clean}]   source_dir: [${source_dir}]   target_dir: [${target_dir}]   metadata_file: [${metadata_file}]" 1>&2

tagtab_alloc

echo "Reading MetaData..."

tagtab_load "${metadata_file}" "DEFAULT"

nb_track=${track_id}
echo "Nb track found: ${nb_track}"



track_id=1

find "${source_dir}" -maxdepth 1 -name '*.flac' -o -name '*.mp3' | sort | (
    while read track_file
    do
#        title="${tagtab["${track_id},TITLE"]}"
        tag_get title "${track_id}" "TITLE"
       
	     suffix="${track_file##*.}"
	target_file="$(printf "%02d" ${track_id})-${title}.${suffix}"
	target_file="$(fix_file_name "${target_file}" "")"
	target_file="${target_dir}/$(fix_file_name "${target_file}" "")"
      
	echo "Copying ${track_file} into ${target_file}"
        cmd="cp \"${track_file}\" \"${target_file}\""
	exec_cmd "${cmd}"


	if [[ "${clean}" == "true" ]]
        then
	    tag_save "${target_file}" "${track_id}" "CLEAN"
	else
	    tag_save "${target_file}" "${track_id}" "NOCLEAN"
	fi

	track_id=$((${track_id} + 1))
    done
)