# info:          containerized cli-template, perfect for outputting terminal-cmds to web

export POD=$(which podman  || which docker || echo "")

hint_systemd(){
  service=/etc/systemd/system/$PODI_APP.service
  silent which podman || return 0
  test -f $service    && return 0
  try podman generate systemd $PODI_APP 2>/dev/null > $PODI_APP.service
  print "to survive server-reboots please run as root:"
  echo "podman generate systemd $PODI_APP $service" | soften
  echo "systemctl enable $PODI_APP.service" | soften
}

build(){
  header .pod/app/container_webcli
  test -f Dockerfile || { print "'Dockerfile' not found..skipping build"; }
  test -f Dockerfile && {
    silent which $POD || print '[!] please install podman (or docker)'
    silent which $POD && verbose $POD build -t $PODI_APP .
  } | soften 
  return 0
}

stop(){
  header .pod/app/container_webcli
  test -z $POD || {
    silent try $POD kill $PODI_APP
    silent try $POD rm -f $PODI_APP
  }
}

start(){
  header .pod/app/container_webcli
  test -z $PODI_APP && PODI_APP=$(basename $(pwd))
  silent test -z $POD && error "please install podman (or docker)"
  test -z $POD || {
    export PODI_APP=$PODI_APP
    eval "$(cat .env)"
    POD=$(which podman || which docker)
    verbose $POD run -d --volume $(pwd):/home/app -w /home/app -e PORT -p $PORT:$PORT --name $PODI_APP --entrypoint=sh $PODI_APP -c ./app
    verbose $POD logs $PODI_APP 2>&1 | awk "{print \"[app.log] \"\$0 }"
    hint_systemd
    print ""
    print "your container is running at $PODI_REMOTE:$PORT"
  } 
  return 0
}

init_runtime(){
  test -f app || {
    generate(){ 
      echo '#!/bin/sh'
      echo 'export JOB="cat hello.txt ; ls -la"'
      echo 'which socat &>/dev/null || { echo "please install socat as root"; exit 1; }'
      echo 'socat -t2 TCP4-LISTEN:$PORT,fork,max-children=3,forever,reuseaddr SYSTEM:"$JOB",pty,echo=0;'
    }
    prompt "generate + commit 'app' startfile?" "$(generate | soften)" "[y/n] "
    test $answer = "y" || error aborting
    generate > app 
    chmod 755 app 
    echo "HTTP/1.1 200\n\n H E L L O " > hello.txt
    echo "FROM docker.io/alpine/socat" > Dockerfile
    echo "export PORT=$(awk 'BEGIN{ srand(); print int(rand()*1000)+8000 }')" >> .env
    git add app Dockerfile .env hello.txt .pod podi && git commit -m "adding podi"
  }
  test -f .pod/checkout/rollback_simple || recipe checkout/rollback_simple
  test -f .pod/start/envfile            || recipe start/envfile 
  test -f .pod/init/server/sshkey       || recipe init/server/sshkey 
}