#!/usr/bin/env sh
# SPDX-FileCopyrightText: Daniel Pätzold
# SPDX-License-Identifier: AGPL-3.0-or-later
#
# Sofwareinstallation script for Nextcloud Desktop
#
echo "Setup Nextcloud- Sync"

#Local Vars
BASECMD="/usr/bin/flatpak run --branch=stable --arch=x86_64 --command=nextcloud com.nextcloud.desktopclient.nextcloud"

#Check Token
if [ "${DAVTOKEN_USER}." == "." ]; then
    # Todo: Move all task to some function to logon as user and get all vars, call it and proceed here
    echo "Error: Script cannot be executed standalone and needs a prereserved Environment. Quit."
    exit 1
fi

#Remove Nextcloud from autostart anyway! Must be started by this script manually, because if it was started befor the ecrypted mount,
#it will never sync and always throw an error that the local dir is missing
if [ -f "$SUDO_HOME/.config/autostart/com.nextcloud.desktopclient.nextcloud.desktop" ]; then
  echo "Remove Autostart Nextcloud"
  rm $SUDO_HOME/.config/autostart/com.nextcloud.desktopclient.nextcloud.desktop
  #Stopping Nextcloud
  su -c "$BASECMD --quit 1>/dev/null 2>/dev/null" $SUDO_USER
  sleep 5
fi

NC_PID=$( pgrep -u $USER nextcloud )
if [[ ! -z ${NC_PID} ]]; then
    echo "Stopping Nextcloud with PID ${NC_PID}"
#    $BASECMD --quit 1>/dev/null 2>/dev/null && sleep 5
    kill ${NC_PID}
    if [[ $? -ne 0 ]]; then
      echo "Service could not be stopped, please check why."
      exit 1
    fi
fi
sleep 0.5

#Check if Option is Configured to use Nextcloud Desktop Data- Sync
declare -p CLIENT_DATA_SYNC_DECLARE >/dev/null
eval "${CLIENT_DATA_SYNC_DECLARE}"
declare -p CLIENT_DATA_SYNC_DECLARE CLIENT_DATA_SYNC >/dev/null
eval "${CLIENT_DATA_SYNC}"
if [[ "${#CLIENT_DATA_SYNC[@]}" == "0" ]]; then
    echo "CLIENT_DATA_SYNC not set, skipping setup of Nextcloud Desktop sync"
    exit 0
fi

#Loop through all Entries
for i in {0..99}; do
    if [[ -z ${CLIENT_DATA_SYNC[$i]} ]]; then
        break
    fi
    CLIENT_DATA_DECLARE_LINE="${CLIENT_DATA_SYNC[$i]}"
    eval "${CLIENT_DATA_DECLARE_LINE}"
    # echo "DEBUG user_run.sh(0020)_2: ${CLIENT_DATA_SYNC_LINE[@]}"
    # Now, CLIENT_DATA_SYNC_LINE[0] contains the local path and CLIENT_DATA_SYNC_LINE[1] contains the remote path
    if grep -q "localPath=${CLIENT_DATA_SYNC_LINE[0]}" "/${HOME}/.var/app/com.nextcloud.desktopclient.nextcloud/config/Nextcloud/nextcloud.cfg"; then
        echo "Already found configured local folder ${CLIENT_DATA_SYNC_LINE[0]} syncing with ${CLIENT_DATA_SYNC_LINE[1]} . Leaving it unchanged."
    else
        echo "Setup new sync from remote ${CLIENT_DATA_SYNC_LINE[1]} to local ${CLIENT_DATA_SYNC_LINE[0]}"
        if [[ $i -gt 0 ]]; then
          echo "Due to Bug in Nextcloud Client, more than one synced Folder cannot be setup currently. Maybe in the Future."
          continue;
        fi
        if [ -d "${CLIENT_DATA_SYNC_LINE[0]}" ]; then
            echo "Old unsynced Folder ${CLIENT_DATA_SYNC_LINE[0]} was found, renaming to ${CLIENT_DATA_SYNC_LINE[0]}_bak."
            mv "${CLIENT_DATA_SYNC_LINE[0]}" "${CLIENT_DATA_SYNC_LINE[0]}_bak"
        fi
        mkdir -p ${CLIENT_DATA_SYNC_LINE[0]}
        SYNCCMD="$BASECMD --userid ${DAVTOKEN_USER} --apppassword ${DAVTOKEN_PASS} --localdirpath ${CLIENT_DATA_SYNC_LINE[0]} --remotedirpath ${CLIENT_DATA_SYNC_LINE[1]} --serverurl https://${SERVERFQDN_NC}"
        SYNCCMD_HIDDENPW=$( echo "${SYNCCMD/${DAVTOKEN_PASS}/***HIDDEN***}" )
        echo "Exec: ${SYNCCMD_HIDDENPW}"
        # Due to Bugs in Nextcloud, autoprovisioning will only work when no configuration is existent. Therefore delete any exitsing configs that may be there
        rm -rif ${HOME}/.var/app/com.nextcloud.desktopclient.nextcloud/data/Nextcloud
        #Now, execute Nextcloud autoprovisionig
        ${SYNCCMD}
        if [ $? -ne 0 ]; then
            echo "=========== !!! ========================"
            echo "Error: It looks like this did not work!"
            echo "Please check the above output!"
            exit 1
        fi
    fi
done

##Check if Nextcloud was already setup
#if [ $SETUP_NEEDED = "0" ]; then
#    echo "Nextcloud was already setup, skipping configure and starting Service"
#    echo "If you want to reset, please delete the Folder [HOME]/.var/app/com.nextcloud.desktopclient.nextcloud manually."
#    echo "Command: rm -rif ~/.var/app/com.nextcloud.desktopclient.nextcloud/"
#    su -c "nohup ${BASECMD} 1>/dev/null 2>/dev/null &" $SUDO_USER
#    exit $?
#fi

#No check for installed Nextcloud needed, because it will be installed by calling script sync_client_software.sh

#Cleanup Nextcloud Configuration completely, while otherwise, the configure will not work
#echo "Remove $SUDO_HOME/.var/app/com.nextcloud.desktopclient.nextcloud"
#rm -rif "$SUDO_HOME/.var/app/com.nextcloud.desktopclient.nextcloud"

#echo "Exec as $SUDO_USER: ${SYNCCMD}"
#echo "Exec as $SUDO_USER: ${SYNCCMD_HIDDENPW}"
#su -c "${SYNCCMD}" $SUDO_USER
#if [ $? -ne 0 ]; then
#    echo "=========== !!! ========================"
#    echo "Error: It looks like this did not work!"
#    echo "Please check the above output!"
#    exit 1
#fi
# Now start Nextcloud
nohup ${BASECMD} 1>/dev/null 2>/dev/null &
echo "Done Setup of Nextcloud."
exit 0