#!/bin/bash

# Copyright: 2023 Virtuozzo International GmbH

# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at

# http://www.apache.org/licenses/LICENSE-2.0

# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.



VERBOSE=0;
inherit default exceptor ;
inherit os envinfo ;
inherit extendperm;

VERSION="1";
DEFAULT_ACTION="Usage";
DESCRIPTION="Module for import and export data and configs";
DOWNLOADS="/var/cache/unpack/";
DESTINATION="/";

CURL_OPTIONS=" -L -kfsS "

function doUsage() {
    showUsageMessage;
}

$PROGRAM 'tar';

function onModLoadCallback(){
    local temp=`getopt -o a:,d: -l archive:,destination: -- "$@" 2>>"$JEM_CALLS_LOG"`
    [[ $? != 0 ]] && die -q "Terminating...";
    eval set -- "$temp"
    while true ; do
        case "${1}" in
            -a|--archive)
                ARCHIVE_URL="$2";
                shift 2;
                ;;
            -d|--destination)
                DESTINATION="$2";
                shift 2;
                ;;
            --)
                shift;
                break;
                ;;
        esac;
    done;
    [ -z "$ARCHIVE_URL" ] && { writeJSONResponseErr "result=>4099" "message=>Missing param" ; return 99; }
    [ -z "$DESTINATION" ] && { writeJSONResponseErr "result=>4099" "message=>Missing param" ; return 99; }
    return 0
}


function doArchive() {
    [ -z "$ARCHIVE_URL" ] && {
	writeJSONResponseErr "result=>4050" "message=>URL is not valid!" ;
        return 1;
    }
    [ ! -d "$DOWNLOADS" ] && { mkdir -p "$DOWNLOADS"; }

    shopt -s dotglob;
    rm -Rf "$DOWNLOADS"/*;
    shopt -u dotglob;

    if $GREP -qE "^file:" <<< ${ARCHIVE_URL} ; then
	#local file
	package_name=$($SED 's/file:\/\///' <<< ${ARCHIVE_URL});
    else
	cd $DOWNLOADS
	$CURL ${CURL_OPTIONS} -O ${ARCHIVE_URL} >> $ACTIONS_LOG 2>&1;
        [ $? -gt 0 ] && {
            	cd $DOWNLOADS
		http_url=$($SED 's/^https/http/' <<< ${ARCHIVE_URL})
		$CURL ${CURL_OPTIONS} -O ${http_url} >> $ACTIONS_LOG 2>&1;
		[ $? -gt 0 ] && {
			writeJSONResponseErr "result=>4078" "message=>Error loading file from URL" ; die -q;
		}
	};
	cd /
        package_name="$DOWNLOADS/"`ls $DOWNLOADS`;
    fi

    ARC_UTILITY="";ARCH_OPT="";ARCH_DEST="";
    if [[ ${package_url} =~ .zip$ ]] || [[ ${package_name} =~ .zip$ ]]
    then
        ARC_UTILITY="$UNZIP" ;
        ARCH_OPT=" -o ";
        ARCH_DEST_OPT=" -d ";
    fi
    if [[ ${package_url} =~ .tar$ ]] || [[ ${package_name} =~ .tar$ ]]
    then
       ARC_UTILITY="$TAR";
       ARCH_OPT=" --overwrite -xpf ";
       ARCH_DEST_OPT=" -C ";
    fi
    if [[ ${package_url} =~ .tar.gz$ ]] || [[ ${package_name} =~ .tar.gz$ ]]
    then
       ARC_UTILITY="$TAR" ;
       ARCH_OPT=" --overwrite -xpzf ";
       ARCH_DEST_OPT=" -C ";
    fi
    if [[ ${package_url} =~ .tar.bz2$ ]] || [[ ${package_name} =~ .tar.bz2$ ]]
    then
	ARC_UTILITY="$TAR";
	ARCH_OPT=" --overwrite -xpjf ";
	ARCH_DEST_OPT=" -C ";
    fi

    [ ! -d "$DESTINATION" ] && { mkdir -p "$DESTINATION"; }
    [[ "x${SERVICE}" != "x" ]] && stopService ${SERVICE} > /dev/null 2>&1;

    [ "x${COMPUTE_TYPE}" == "xapache-php" -o "x${COMPUTE_TYPE}" == "xnginx-php" ] && [[ -d /var/www/webroot/ROOT/ && ! -h /var/www/webroot/ROOT ]] && rm -rf /var/www/webroot/ROOT/;
    [ "x${COMPUTE_TYPE}" == "xcartridge" ] && [[ -d /opt/repo/ROOT/ && ! -h /opt/repo/ROOT ]] && { shopt -s dotglob; rm -rf /opt/repo/ROOT/*; shopt -u dotglob; }

    ${ARC_UTILITY} ${ARCH_OPT} "$package_name" ${ARCH_DEST_OPT} "$DESTINATION" >> $ACTIONS_LOG 2>&1;
    result=$?;

    [[ "x${SERVICE}" != "x" ]] && startService ${SERVICE} >> $ACTIONS_LOG 2>&1;
    # writeJSONResponseErr "result=>4052" "message=>Context does not exist";
    writeJSONResponseOut "result=>0" "message=>Unpacked successfully";
    return 0;
}

function describeArchive() {
    echo "Unpack file" ;
    return 0;
}

function postArchiveCallback(){
    ExtendPerm ;
}

function describeArchiveOptions() {
    echo "-a|--archive: archive to unpack";
    echo "-d|--destination: destination path (default /)";
}

function describeArchiveParameters() {
    echo "-a|--archive <archive name> [-d|--destination <destination path>]";
}