#!/bin/sh

set -u
set -e

LENGTH_FILE="length.vdr"
CRC_FILE="checksum.md5"

do_length() {

	[ -e "${1}/index.vdr" ] && vdr-getlength "${1}" || true
	[ -e "${1}/index" ] && vdr-getlength "${1}" || true

}

do_crc() {

	if [ -e "${1}/index.vdr" ]; then
		echo "cd \"${1}\"; tmp=\"\$(tempfile)\"; nice -n 19 md5sum -b [0-9][0-9][0-9].vdr 2> /dev/null 1> \"\${tmp}\" && ([ -d \"${1}\" ] && cp \"\${tmp}\" \"${1}/${CRC_FILE}\" || echo \"directory ${1} moved\"; rm \"\${tmp}\")" | at now
	fi
	if [ -e "${1}/index" ]; then
		echo "cd \"${1}\"; tmp=\"\$(tempfile)\"; nice -n 19 md5sum -b [0-9][0-9][0-9][0-9][0-9].ts 2> /dev/null 1> \"\${tmp}\" && ([ -d \"${1}\" ] && cp \"\${tmp}\" \"${1}/${CRC_FILE}\" || echo \"directory ${1} moved\"; rm \"\${tmp}\")" | at now
	fi

}

do_move() {

	cp "${1}/${LENGTH_FILE}" "${2}/${LENGTH_FILE}"
	cp "${1}/${CRC_FILE}" "${2}/${CRC_FILE}"

}


case "${1}" in

	after|edited)
		TARGET_RECORD_DIR="${2}"
		do_length "${TARGET_RECORD_DIR}"
		do_crc "${TARGET_RECORD_DIR}"
	;;
	move)
		SOURCE_RECORD_DIR="${2}"
		TARGET_RECORD_DIR="${3}"
		do_move "${SOURCE_RECORD_DIR}" "${TARGET_RECORD_DIR}"
	;;

esac

exit 0