.docker_aliases

printf "\nUseful Docker aliases:\n\n"

# define the path to the alias cache
DOCKER_COMPOSE_YAML_DIR="/home/ginocic"
DOCKER_COMPOSE_YAML="$DOCKER_COMPOSE_YAML_DIR/docker-compose.yaml"

isNamedContainer() {
  if [ -e "$DOCKER_COMPOSE_YAML" ] ; then
    echo $(grep -c -E "^ +container_name: $1" $DOCKER_COMPOSE_YAML)
  else
    echo 0
  fi
}

if [ $(isNamedContainer home-assistant) -gt 0 ] ; then
  alias hacontlogs='docker container logs home-assistant -f'
  alias hacontsh='docker exec -it home-assistant sh'
  alias halogs='docker logs home-assistant'
  alias haupdate='dc-pull home-assistant &&  dc-build home-assistant && docker image prune -f'

  echo " Home Assistant: hacontlogs | hacontsh   | halogs"
  echo "                 haupdate"
  echo ""
fi

if [ $(isNamedContainer esphome) -gt 0 ] ; then
  alias espwizard='docker run --rm -v /home/ginocic/esphome/config:/config --net=host -it esphome/esphome wizard'
  alias espinstall='docker run --rm -v /home/ginocic/esphome/config:/config --net=host -it esphome/esphome --device=/dev/ttyusb0 run'

  echo " ESPHome       : espwizard  | espinstall               {<nome-progetto>.yaml}"
  echo "" 
fi

unset -f isNamedContainer

# define the path to the alias cache
ALIAS_CACHE_DIR="$DOCKER_COMPOSE_YAML_DIR/.cache/DockerAliases"
ALIAS_CACHE="$ALIAS_CACHE_DIR/cache"

# ensure the directory exists
mkdir -p "$ALIAS_CACHE_DIR"

# does the cache exist?
if [ ! -f "$ALIAS_CACHE" ] ; then

  echo 'dps() {' >>"$ALIAS_CACHE"
  echo '  local DPS_CMD="docker ps --format \"table {{.Names}}\t{{.RunningFor}}\t{{.Status}}\""' >>"$ALIAS_CACHE"
  echo '  while (( "$#" )); do' >>"$ALIAS_CACHE"
  echo '    DPS_CMD="$DPS_CMD --filter name=$1"' >>"$ALIAS_CACHE"
  echo '    shift' >>"$ALIAS_CACHE"
  echo '  done' >>"$ALIAS_CACHE"
  echo '  bash -c "$DPS_CMD"' >>"$ALIAS_CACHE"
  echo '}' >>"$ALIAS_CACHE"
  echo "" >>"$ALIAS_CACHE"
  
  echo 'dnet() {' >>"$ALIAS_CACHE"
  echo '  local DNET_CMD="docker ps --format \"table {{.Names}}\t{{.Ports}}\""' >>"$ALIAS_CACHE"
  echo '  while (( "$#" )); do' >>"$ALIAS_CACHE"
  echo '    DNET_CMD="$DNET_CMD --filter name=$1"' >>"$ALIAS_CACHE"
  echo '    shift' >>"$ALIAS_CACHE"
  echo '  done' >>"$ALIAS_CACHE"
  echo '  bash -c "$DNET_CMD"' >>"$ALIAS_CACHE"
  echo '}' >>"$ALIAS_CACHE"
  echo "" >>"$ALIAS_CACHE"
  
  echo "alias dc-up='docker compose -f ${DOCKER_COMPOSE_YAML} up -d'" >>"$ALIAS_CACHE"
  echo "alias dc-restart='docker compose -f ${DOCKER_COMPOSE_YAML} restart'" >>"$ALIAS_CACHE"
  echo "alias dc-stop='docker compose -f ${DOCKER_COMPOSE_YAML} stop'" >>"$ALIAS_CACHE"
  echo "alias dc-pull='docker compose -f ${DOCKER_COMPOSE_YAML} pull'" >>"$ALIAS_CACHE"
  echo "alias dc-build='docker compose -f ${DOCKER_COMPOSE_YAML} up --build -d'" >>"$ALIAS_CACHE"
  echo "alias dc-rebuild='docker compose -f ${DOCKER_COMPOSE_YAML} build --no-cache --pull'" >>"$ALIAS_CACHE"
  echo "alias dc-recreate='docker compose -f ${DOCKER_COMPOSE_YAML} up -d --force-recreate'" >>"$ALIAS_CACHE"
  echo "alias dc-terminate='docker compose -f ${DOCKER_COMPOSE_YAML} rm --force --stop -v'" >>"$ALIAS_CACHE"
  echo "alias dc-edit='nano ${DOCKER_COMPOSE_YAML}'" >>"$ALIAS_CACHE"
  echo "alias dc-test='docker compose -f ${DOCKER_COMPOSE_YAML} config'" >>"$ALIAS_CACHE"
  echo "alias dc-down='docker compose -f ${DOCKER_COMPOSE_YAML} down'" >>"$ALIAS_CACHE"
  echo "alias dc-prune='docker system prune -f'" >>"$ALIAS_CACHE"
  echo "" >>"$ALIAS_CACHE"

  echo 'echo ""' >>"$ALIAS_CACHE"
	echo 'echo "        Docker: dc-up       | dc-restart   | dc-stop     {<container> …}"' >>"$ALIAS_CACHE"
	echo 'echo "                dc-pull     | dc-build     | dc-rebuild  {<container> …}"' >>"$ALIAS_CACHE"
	echo 'echo "                dc-recreate | dc-terminate               {<container> …}"' >>"$ALIAS_CACHE"
  echo 'echo "                dps         | dnet                       {<container> …}"' >>"$ALIAS_CACHE"
	echo 'echo "                dc-edit, dc-test, dc-down, dc-prune"' >>"$ALIAS_CACHE"
  echo 'echo ""' >>"$ALIAS_CACHE"
  echo "" >>"$ALIAS_CACHE"

  # no! fetch the list of running containers
  CONTAINERS=$(curl -s --unix-socket /var/run/docker.sock http://localhost/containers/json | jq -r '.[].Names | .[] | gsub("^/";"")')
  # non-empty result?
  if [ -n "$CONTAINERS" ] ; then
    # yes! tell the user this may take some time
    echo "Building $ALIAS_CACHE - this may take some time"

    # initialise the cache file
    touch "$ALIAS_CACHE"
    echo "# Rebuilt $(date)" >>"$ALIAS_CACHE"

    # iterate the list
    for CONTAINER in $CONTAINERS ; do
      echo -n "   checking $CONTAINER - "
      CANDIDATES=$(docker exec $CONTAINER which bash ash zsh sh)
      if [ $? -eq 1 ] ; then
        FIRST=$(echo $CANDIDATES | cut -d " " -f 1)
        echo "$FIRST"
        echo "alias ${CONTAINER^^}_SHELL='docker exec -it $CONTAINER $FIRST'" >>"$ALIAS_CACHE"
      else
        echo "no shell found"
      fi
    done

    echo "" >>"$ALIAS_CACHE"
    echo 'echo "        Shells: <CONTAINER>_SHELL (all capital letters)"' >>"$ALIAS_CACHE"
    echo "" >>"$ALIAS_CACHE"
  else
    echo "No containers running"
  fi

fi

# does the cache exist now?
if [ -f "$ALIAS_CACHE" ] ; then
   # yes! source the cache
   source "$ALIAS_CACHE"
fi

# clean up
rm "$ALIAS_CACHE"
unset ALIAS_CACHE_DIR ALIAS_CACHE CONTAINERS CONTAINER CANDIDATES FIRST ALIASNAME
echo ""