#!/bin/bash

## Version 2.2 | Date: 02.12.2025
## autor: schwanzus.longus@gigalearn.de

## rm -f application.sh; wget -c -O application.sh https://ftp.info-linux.de/arbeiten/Docker/application.sh.txt; chmod 755 application.sh
## sed -i "s/DockerComposePath=/DockerComposePath=`pwd`/g" application.sh
## sed -i "s/DockerComposePath=/DockerComposePath='%$(pwd)%'/g" application.sh
## sed -e 's%'$var1'%'$var2'%g'

## !!! change the variable in the next line and enter the absolute path. !!!
DockerComposePath=
DockerFile=$DockerComposePath/docker-compose.yml

DOCKER=$(which docker)
NORMAL='\033[0;39m'
BLUE='\033[1;34m'
GREEN='\033[1;32m'
RED='\033[1;31m'
YELLOW='\033[1;33m'

if [ ! -f $DockerFile ]; then echo; echo "Keine Docker Yaml Datei vorhanden"; echo; exit 1; fi
if [ -z $DOCKER ]; then echo; echo "Es schein kein Docker installiert zu sein!"; echo; exit 2; fi

## Zeilen Zählen
number_of_lines=$(cat $DockerFile | grep container_name | awk '{print $2;}' | wc -l)
single_service=0
stack_service=0

if [ $number_of_lines -eq 1 ]; then
#	container_name=$(cat $DockerFile | grep container_name | awk '{print $2;}')
	container_name=$(grep container_name "$DockerFile" | awk -F '"' '{print $2}')
        single_service=1
fi

if [ $number_of_lines -gt 1 ]; then
#	container_names=$(cat $DockerFile | grep container_name | awk '{print $2;}' | sed ':a;N;$!ba;s/\n/ /g')
	container_names=$(grep container_name "$DockerFile" | awk -F '"' '{print $2}' | tr '\n' ' ')
        stack_service=1
fi



function start {
  $DOCKER compose -f $DockerFile up -d --build
	$0 status
}

function stop {
  $DOCKER compose -f $DockerFile stop
	$0 status
}

function update {
	stop
	sleep 2
    $DOCKER compose -f $DockerFile pull
    sleep 2
    start
}

function remove {
  $DOCKER compose -f $DockerFile down
}

function cleanup {
  $DOCKER system prune --all --volumes -f
}

function state {
if [ $single_service -eq 1 ]; then
  if [[ $(docker inspect -f '{{.State.Running}}' $container_name) = "true" ]]; then
    echo -e "\t $container_name:$GREEN is up and running$NORMAL. ";
  else
    echo -e "\t $container_name:$RED is down$NORMAL.";
  fi
fi

if [ $stack_service -eq 1 ]; then
  for i in $container_names
  do
    if [[ $(docker inspect -f '{{.State.Running}}' $i) = "true" ]]; then
      echo -e "\t $i:$GREEN is up and running$NORMAL. ";
    else
      echo -e "\t $i:$RED is down$NORMAL.";
    fi
  done
fi
}

case $1 in
  start)
    start
  ;;
  stop)
    stop
  ;;
  restart)
    stop && start
  ;;
  uninstall)
    remove
  ;;
   cleanup)
    cleanup
  ;;
  update)
		update
	;;
	status)
		echo
		state
		echo
	;;
  *)
    echo
    echo -e "\tUSAGE: $0 { start | stop | status | restart | update | uninstall | cleanup }"
    echo
  ;;
esac