#!/bin/sh

MYDUMPER=/usr/bin/mydumper
_MYDUMPER_OPTS=""

pre() {
	:
}

post() {
	:
}

_yesno() {
	[ -z "${1}" ] && return 1

	case "${1}" in
		[Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1) return 0;;
		[Nn][Oo]|[Ff][Aa][Ll][Ss][Ee]|[Oo][Ff][Ff]|0) return 1;;
	esac

	return 1
}

_add_opts() {
	local args="${*}"

	_MYDUMPER_OPTS="${_MYDUMPER_OPTS:+${_MYDUMPER_OPTS}} ${args}"
    echo "DEBUG: ${_MYDUMPER_OPTS}"
}

die() {
	echo $* >&2
	exit 1
}

# Try to parse a default config
[ -e "/etc/mydumper-backup.conf" ] && {
	. "/etc/mydumper-backup.conf" || die "Error: Parsing /etc/mydumper-backup.conf failed!"
}

# Parse additional configs first, other options than "c" will be preserved.
while getopts :C: name; do
	case $name in
		C)
			. "${OPTARG}" || die "Error: Parsing ${OPTARG} failed!"
            shift $(($OPTIND - 1))
			continue
			;;
	esac
done

OPTIND=1 # Reset OPTIND
# Commandline opts will override the settings from the default/additional
# confgis.
while getopts B:T:o:x:L:h:P:S:u:p:t:bc name; do
	case $name in
		B) MD_DATABASE=${OPTARG}; echo "EHEHEHE"; continue;;
		T) MD_TABLES="${OPTARG}"; continue;;
		o) MD_OUTPUTDIR=$OPTARG; continue;;
		x) MD_REGEX=$OPTARG; continue;;
		L) MD_LOGFILE=$OPTARG; continue;;
		h) MD_HOST=$OPTARG; continue;;
		P) MD_PORT=$OPTARG; continue;;
		S) MD_SOCKET=$OPTARG; continue;;
		u) MD_USER=$OPTARG; continue;;
		p) MD_PASSWORD=$OPTARG; continue;;
		t) MD_THREADS=$OPTARG; continue;;
		b) MD_BINLOGS=1; continue;;
		c) MD_COMPRESS=1; continue;;
	esac
done
shift $(($OPTIND - 1))

# Try to use the MySQL socket by default
[ -z "${MD_HOST}" -a -z "${MD_PORT}" -a -z "${MD_SOCKET}" -a -e /var/run/mysqld.sock ] && _add_opts "--socket /var/run/mysqld.sock"

[ -n "${MD_DATABASE}" ] && _add_opts "--database ${MD_DATABASE}"
[ -n "${MD_TABLES}" ] && _add_opts "--table-list ${MD_TABLES}"
[ -n "${MD_OUTPUTDIR}" ] && _add_opts "--outputdir ${MD_OUTPUTDIR}"
[ -n "${MD_REGEX}" ] && _add_opts "--regex ${MD_REGEX}"
[ -n "${MD_LOGFILE}" ] && _add_opts "--logfile ${MD_LOGFILE}"
[ -n "${MD_HOST}" ] && _add_opts "--host ${MD_HOST}"
[ -n "${MD_PORT}" ] && _add_opts "--port ${MD_PORT}"
[ -n "${MD_SOCKET}" ] && _add_opts "--socket ${MD_SOCKET}"
[ -n "${MD_THREADS}" ] && _add_opts "--threads ${MD_THREADS}"
[ -n "${MD_USER}" ] && _add_opts "--user ${MD_USER}"
[ -n "${MD_PASSWORD}" ] && _add_opts "--password ${MD_PASSWORD}"
[ -n "${MYDUMPER_OPTS}" ] && _add_opts ${MYDUMPER_OPTS}

if _yesno ${MD_COMPRESS}; then
	_add_opts "--compress"
fi
if _yesno ${MD_BINLOGS}; then
	_add_opts "--binlogs"
fi

pre || die "Error: running pre() failed!"
echo "_MYDUMPER_OPTS: ${_MYDUMPER_OPTS}"
echo "REST: $*"
#echo $MYDUMPER $_MYDUMPER_OPTS $*
post || die "Error: running post() failed!"