#!/bin/bash

# info:
# This script will move a folder to the new destination and make a symlink from the old path to the new destination

# options: FROMFOLDER TOFOLDER

#----------------------------------------------------------#
#                    Variable&Function                     #
#----------------------------------------------------------#

whoami=$(whoami)
if [ "$whoami" != "root" ] && [ "$whoami" != "admin" ] ; then
    echo "You must be root or admin to execute this script";
    exit 1;
fi

# Argument definition
FROMFOLDER=$1
TOFOLDER=$2

# Includes
source $VESTA/func/main.sh

#----------------------------------------------------------#
#                    Verifications                         #
#----------------------------------------------------------#

# Trimming the ending slash, just in case
FROMFOLDER=$(echo "$FROMFOLDER" | sed 's:/*$::')
TOFOLDER=$(echo "$TOFOLDER" | sed 's:/*$::')

if [ ! -d "$FROMFOLDER" ]; then
    echo "Folder $FROMFOLDER does not exists, aborting"
    exit 1
fi

if [ -L "$FROMFOLDER" ]; then
    echo "Folder $FROMFOLDER is already symlink, aborting"
    exit 1
fi

if [ -d "$TOFOLDER" ]; then
    echo "Folder $TOFOLDER already exists, aborting"
    exit 1
fi

if [ -L "$TOFOLDER" ]; then
    echo "Folder $TOFOLDER already exists (as symlink), aborting"
    exit 1
fi

USER=$(stat -c '%U' "$FROMFOLDER")
GROUP=$(stat -c '%G' "$FROMFOLDER")
PARENTFOLDER=$(dirname "$TOFOLDER")

if [ ! -d "$PARENTFOLDER" ]; then
    PUSER=$(stat -c '%U' "$PARENTFOLDER")
    PGROUP=$(stat -c '%G' "$PARENTFOLDER")
    echo "= Creating parent folder..."
    mkdir -p "$PARENTFOLDER"
    chown $PUSER:$PGROUP "$PARENTFOLDER"
fi

#----------------------------------------------------------#
#                       Action                             #
#----------------------------------------------------------#

rsync -a "$FROMFOLDER/" "$TOFOLDER/"
# with slashes on the end of the path of both folders
if [ "$?" -ne 0 ]; then
    echo "Error happened, aborting"
    exit 1
fi

if [ "$FROMFOLDER" = "/home/$USER" ] && [ -d "$FROMFOLDER/conf" ]; then
    # if we are moving myVesta home folder, we must remove immutable attribute from conf/ files
    chattr -R -i "$FROMFOLDER/conf/" > /dev/null 2>&1
    # with slashes on the end of the path of the folder
fi

rm -rf "$FROMFOLDER"
# without slash on the end of the path of the folder

ln -s "$TOFOLDER" "$FROMFOLDER"
# without slashes on the end of the path of both folders

chown -h $USER:$GROUP $FROMFOLDER
# without slash on the end of the path of the folder

#----------------------------------------------------------#
#             Log and print result                         #
#----------------------------------------------------------#

echo "Done, folder $FROMFOLDER moved to $TOFOLDER and symlinked"

# Logging
log_event "$OK" "$ARGUMENTS"

exit