#!/bin/bash

APP_NAME=$1
PORT=$2
: ${PORT:=4000}

echo "Creating a Phoenix app called $APP_NAME in docker with the port $PORT."
docker run -it --rm -v "$PWD":/code -w /phoenix stevobengtson/vt-phoenix-docker mix phoenix.new /code/$APP_NAME
cd $1

# Change the database connection
sed -i -e 's/hostname: "localhost"/hostname: "db"/g' config/dev.exs
sed -i -e 's/hostname: "localhost"/hostname: "db"/g' config/test.exs

cat > startup.sh << EOF
#!/bin/bash

mix local.hex --force
mix local.rebar --force

mix phoenix.server
EOF

cat > docker-compose.yml << EOF
version: '2'
services:
  db:
    image: postgres:9.4
    environment:
      - POSTGRES_USER=postgres
      - POSTGRES_PASSWORD=postgres
      - POSTGRES_DB=${APP_NAME}_dev

  # alpine based version to keep it tiny
  redis:
    image: redis:alpine
    expose:
      - 6379

  web:
    image: stevobengtson/vt-phoenix-docker
    command: /bin/bash /code/startup.sh
    environment:
      PORT: $PORT
    links:
      - db
      - redis
    volumes:
      - .:/code
    ports:
      - "$PORT:$PORT"
    depends_on:
      - db
EOF

docker-compose up -d