#!/bin/sh

# Rename Guillaume Meurice podcast files
# Also change the title tag (2016.09.30 Title)
# http://radiofrance-podcast.net/podcast09/rss_14257.xml

MEURICE_DIR="${1}"
TMP_LIST_FILE="/tmp/list_meurice_file"

# List audio files
find "${MEURICE_DIR}" -mindepth 1 -type f -iregex '.*\.mp3' > "${TMP_LIST_FILE}"

while IFS= read -r FILE
do

  FILE_ABSOLUT_PATH="${MEURICE_DIR}/${FILE}"

	# Get file information
	FILE_EXT=$(echo "${FILE_ABSOLUT_PATH}" | awk -F'[.]' '{print $NF}')

	# Get tag information
	DATE=$(eyeD3 "${FILE_ABSOLUT_PATH}" | grep 'title' 2> /dev/null | sed 's/.*\(..\).\(..\).\(201.\).*/\3-\2-\1/')
	TITLE=$(eyeD3 "${FILE_ABSOLUT_PATH}" | grep 'title' 2> /dev/null | sed 's/.*: \(.*\) \(..\).\(..\).\(201.\).*/\1/')

	printf '%s\n' "date :  ${DATE}"
	printf '%s\n' "title : ${TITLE}"

	# Correct title tag
	command eyeD3 --title="${DATE} ${TITLE}" "${FILE_ABSOLUT_PATH}"

	# Rename the file
	#cp "${FILE}" "${MEURICE_DIR}"/"${DATE}"_"${TITLE}"."${FILE_EXT}"
	#cp "${MEURICE_DIR}"/"${FILE}" "${MEURICE_DIR}"/"${DATE}"_"${TITLE}"."${FILE_EXT}"
	mv "${FILE_ABSOLUT_PATH}" "${MEURICE_DIR}"/"${DATE}"_"${TITLE}"."${FILE_EXT}"

done < "${TMP_LIST_FILE}"

exit 0