#!/bin/bash

IFS=$'\n'
ROOT_PATH="/var/www/vhosts"

#
# get directories
#
if [ -f "./vhosts.du" ]; then
    du_output=$(cat "./vhosts.du")
else
    echo
    echo -e "Reading disk usage for every directory in ${ROOT_PATH}. Please wait..."
    echo
    cd ${ROOT_PATH}
    du_output=$(du -sh */ | column --table -R1)
fi

#
# convert directorires into menu items
#
index=0
menu_items=()
for dir in $du_output; do
    menu_items+=("$index $dir" "")
    index=$(expr $index + 1)
done

#
# show menu
#
dialog --no-lines --menu "Choose a directory from ${ROOT_PATH}:" 0 0 0 "${menu_items[@]}" 2> /tmp/menu_choice
menu_choice=$(cat /tmp/menu_choice)
rm -f /tmp/menu_choice
echo

#
# Find the site root directory
#
SELECTED_DIR=$(echo ${menu_choice} | awk '{print $3}')
[ "${SELECTED_DIR}" == "" ] && echo "No directory selected" && exit
[ ! -d "${SELECTED_DIR}" ] && echo "Cannot find selected directory ${SELECTED_DIR}" && exit
echo "SELECTED_DIR :" $SELECTED_DIR

#VHOST_DIR=${ROOT_PATH}/${SELECTED_DIR}
#[ ! -d "${SELECTED_DIR}" ] && echo "Cannot find selected vhost directory ${VHOST_DIR}" && exit
#echo -e "VHOST_DIR    :" $VHOST_DIR

#
# Find the index.php or index.html, the full path and the dir name
#
SITE_INDEX=$(find ${SELECTED_DIR} -name index.php -printf "%d %p\n"|sort -n|perl -pe 's/^\d+\s//;' | head -n1)
if [ "${SITE_INDEX}" == "" ];then
  SITE_INDEX=$(find ${SELECTED_DIR} -name index.html -printf "%d %p\n"|sort -n|perl -pe 's/^\d+\s//;' | head -n1)
fi

echo -e "INDEX        :" $SITE_INDEX

INDEX_PATH=$(dirname $SITE_INDEX)
echo -e "INDEX_PATH   :" $INDEX_PATH

INDEX_DIR=$(echo $INDEX_PATH | awk -F/ '{print $NF}')
echo -e "INDEX_DIR    :" $INDEX_DIR

TARGET_DIR=${INDEX_PATH}

#
# Determine the type of the site
#
SITE_TYPE="unknown"
[ -d "${INDEX_PATH}/core" ] && [ -d "${INDEX_PATH}/sites" ] && SITE_TYPE="drupal"
[ -d "${INDEX_PATH}/admin" ] && [ -d "${INDEX_PATH}/mod" ] && SITE_TYPE="moodle"

#
# If its composer site get the parent directory of web/
#
if [ ${INDEX_DIR} == "web" ]; then
    TARGET_DIR=$(dirname ${INDEX_PATH})
fi

echo -e "TARGET_DIR   :" $TARGET_DIR
echo
cd /root

#
# Confirm this is the right type of site
#
read -p "This is a ${SITE_TYPE} site. Continue to backup [y/n] ? " -n 1 -r
if [[ $REPLY =~ ^[Yy]$ ]]; then
    echo
    #
    # Send path to back script
    #
    [ ${SITE_TYPE} == 'drupal' ] && bash ./backup-${SITE_TYPE}.sh ${TARGET_DIR} &
    [ ${SITE_TYPE} == 'moodle' ] && echo "Backup for type ${SITE_TYPE} not implemented yet!" && exit
    [ ${SITE_TYPE} == 'unknown' ] && echo "Backup for ${SITE_TYPE} types has not yet implemented!" && exit
fi
echo