#!/bin/bash

# Get absolute path to main directory
ABSPATH=$(cd "${0%/*}" 2>/dev/null; echo "${PWD}/${0##*/}")
SOURCE_DIR=`dirname "${ABSPATH}"`

#######################################################################

# Check for required binaries
if ! which mysql > /dev/null; then
    echo "mysql command not found in path, please correct and run again"
    exit 1
fi
if ! which rsync > /dev/null; then
    echo "rsync command not found in path, please correct and run again"
    exit 1
fi

# Get command line parameters
USAGE() {
    echo "Usage:"
    echo "   $0 [-u <db user>] [-p <db pass> | -P] [-h <db host>] -d <database> -r <portal root> -s <backup directory> [-f] [-v]"
    echo
    echo "Option -P forces MySQL to ask for the password on the standard input."
    echo "Option -f skips confirmation prompt"
    echo "Option -v add verbose output"
    exit $1
}
ARG_DBUSER=""
ARG_DBPASS=""
ARG_DBUSEPASS=""
ARG_DBHOST="localhost"
ARG_DB=""
ARG_DESTDIR=""
ARG_SRCDIR=""
ARG_FORCE=""
ARG_VERBOSE=""
while getopts 'u:p:Ph:d:r:s:fv' OPTION ; do
    case "${OPTION}" in
        u)
            ARG_DBUSER="${OPTARG}"
            ;;

        p)
            ARG_DBPASS="${OPTARG}"
            ;;

        P)
            ARG_DBUSEPASS="yes"
            ;;

        h)
            ARG_DBHOST="${OPTARG}"
            ;;

        d)
            ARG_DB="${OPTARG}"
            ;;

        r)
            ARG_DESTDIR="${OPTARG}"
            ;;

        s)
            ARG_SRCDIR="${OPTARG}"
            ;;

        f)
            ARG_FORCE="yes"
            ;;

        v)
            ARG_VERBOSE="yes"
            ;;

        \?)
            USAGE 1
            ;;
    esac
done

# Check command line parameters
if [ -z "${ARG_DESTDIR}" ]; then
    echo "$0: missing required option -- r"
    USAGE 1
elif [ ! -d "${ARG_DESTDIR}" ]; then
    echo "Incorrect destination directory, directory does not exist"
    USAGE 1
fi
if [ -z "${ARG_SRCDIR}" ]; then
    echo "$0: missing required option -- s"
    USAGE 1
elif [ ! -d "${ARG_SRCDIR}/database" -o ! -d "${ARG_SRCDIR}/filesystem" ]; then
    echo "Incorrect source directory, must be the folder containing the database and filesystem subfolders"
    USAGE 1
fi

# Prepare MySQL command line parameters
MYSQL_OPTIONS=""
if [ -n "${ARG_DBUSER}" ]; then
    MYSQL_OPTIONS="${MYSQL_OPTIONS} -u${ARG_DBUSER}"
fi
if [ -n "${ARG_DBHOST}" ]; then
    MYSQL_OPTIONS="${MYSQL_OPTIONS} -h${ARG_DBHOST}"
fi
if [ -z "${ARG_DB}" ]; then
    echo "$0: missing required option -- d"
    USAGE 1
fi
if [ -n "${ARG_DBUSEPASS}" ]; then
    MYSQL_OPTIONS="${MYSQL_OPTIONS} -p"
elif [ -n "${ARG_DBPASS}" ]; then
    MYSQL_OPTIONS="${MYSQL_OPTIONS} -p${ARG_DBPASS}"
fi

if [ -z "${ARG_FORCE}" ]; then
    echo "About to delete database and restore backup from ${ARG_SRCDIR} into ${ARG_DESTDIR}"
    echo "using database ${ARG_DB}@${ARG_DBHOST}"
    echo -n "Press <ENTER> to continue or <CTRL>-C to abort... "
    read
    echo
fi

# Deploy filesystemystem
[ -n "${ARG_VERBOSE}" ] && echo -n "Deploying filesystem... "
rsync -rlpt --delete "${ARG_SRCDIR}/filesystem/" "${ARG_DESTDIR}"
mkdir -p "${ARG_DESTDIR}/htdocs/typo3temp"
[ -n "${ARG_VERBOSE}" ] && echo "done"

# Empty Database
[ -n "${ARG_VERBOSE}" ] && echo "Emptying database... "
mysql ${MYSQL_OPTIONS} -e "DROP DATABASE IF EXISTS \`${ARG_DB}\`"
mysql ${MYSQL_OPTIONS} -e "CREATE DATABASE \`${ARG_DB}\`"

# Deploy database
[ -n "${ARG_VERBOSE}" ] && echo "Deploying database... "
(
    cd "${ARG_SRCDIR}/database"

    for SQL in structure.sql data_*.sql full_*.sql;  do
        if [ -r "${SQL}" ]; then
            [ -n "${ARG_VERBOSE}" ] && echo -n " - ${SQL}... "
            mysql ${MYSQL_OPTIONS} "${ARG_DB}" < "${SQL}"
            [ -n "${ARG_VERBOSE}" ] && echo "done"
        fi
    done
); [ $? -eq 0 ]