#!/bin/bash

################################################################################
# INIT
################################################################################

# mkdir -p /root/.ssh
# > /root/.ssh/authorized_keys
# chmod go-rwx /root/.ssh/authorized_keys
# sed -i "s/#PasswordAuthentication yes/PasswordAuthentication no/g" /etc/ssh/sshd_config
# sed -i 's/root:!/root:*/' /etc/shadow

# Provide SSH_AUTH_KEY_* via environment variable
for item in `env`; do
   case "$item" in
       SSH_AUTH_KEY*)
            ENVVAR=`echo $item | cut -d \= -f 1`
            printenv $ENVVAR >> /root/.ssh/authorized_keys
            ;;
   esac
done

# Provide CRON_TASK_* via environment variable
> /etc/crontabs/root
for item in `env`; do
   case "$item" in
       CRON_TASK*)
            ENVVAR=`echo $item | cut -d \= -f 1`
            printenv $ENVVAR >> /etc/crontabs/root
            echo "root" > /etc/crontabs/cron.update
            ;;
   esac
done

# Generate host SSH keys
# if [ ! -e /etc/ssh/ssh_host_rsa_key.pub ]; then
#   ssh-keygen -A
# fi

# Generate root SSH key
# if [ ! -e /root/.ssh/id_rsa.pub ]; then
#   ssh-keygen -q -N "" -f /root/.ssh/id_rsa
# fi

################################################################################
# START as SERVER
################################################################################

# if [ "$1" == "server" ]; then
#   AUTH=`cat /root/.ssh/authorized_keys`
#   if [ -z "$AUTH" ]; then
#     echo "=================================================================================="
#     echo "ERROR: No SSH_AUTH_KEY provided, you'll not be able to connect to this container. "
#     echo "=================================================================================="
#     exit 1
#   fi

#   SSH_PARAMS="-D -e -p ${SSH_PORT:-22} $SSH_PARAMS"
#   echo "================================================================================"
#   echo "Running: /usr/sbin/sshd $SSH_PARAMS                                             "
#   echo "================================================================================"

#   exec /usr/sbin/sshd -D $SSH_PARAMS
# fi

# echo "Please add this ssh key to your server /home/user/.ssh/authorized_keys        "
# echo "================================================================================"
# echo "`cat /root/.ssh/id_rsa.pub`"
# echo "================================================================================"

################################################################################
# START as CLIENT via crontab
################################################################################

if [ "$1" == "client" ]; then
  exec /usr/sbin/crond -f
fi

if [ "$NOMAD_TASK_NAME" == "init" ]; then
  echo "Starting RSYNC"
  flock -x /locks/${NOMAD_GROUP_NAME}_rsync.lock rsync -avv --exclude=Backups --exclude='*.db*' --exclude='*.db' --exclude='*db-litestream' --exclude='generations' /configbackup/ /config/ --delete-before --delete-excluded
  echo "Ensure no DBs"
  rm -rf /config/*.db*
  rm -rf /config/database.sqlite
  

  echo "Starting DB Restore"
  /usr/local/bin/litestream restore -config /local/litestream.yml /config/${DB_NAME}
  chown ${PUID:-1000}:${PGID:-1000} /config/*.db* 
    if [ -n "$DBCHMOD" ]; then 
      chmod ${DBCHMOD} /config/${DB_NAME:${NOMAD_GROUP_NAME}}.db; 
    fi
  exit 0
fi

if [ "$NOMAD_TASK_NAME" == "finalsync" ]; then
  echo "Starting RSYNC"
  flock -x /locks/${NOMAD_GROUP_NAME}_rsync.lock rsync -avv --exclude=Backups --exclude='*.db*' --exclude='*.db' --exclude='*db-litestream' --exclude='generations' /config/ /configbackup/ 
  exit 0
fi

if [ "$NOMAD_TASK_NAME" == "db-sync" ]; then
  echo "Starting DBsync: sleep"
  #give time for app to datart properly
  sleep 15m
  echo "Starting DBsync"
  exec flock -x /configbackup/${NOMAD_GROUP_NAME}_litesync.lock /usr/local/bin/litestream replicate -config /local/litestream.yml
  exit 0
fi




################################################################################
# Anything else
################################################################################
exec "$@"