#!/usr/bin/env bash

set -e

# Get variables for docker-compose
read -rp "Enter the service name: " NAME
read -rp "Enter the service image: " IMAGE
read -rp "Enable watchtower? (y/N): " WATCHTOWER

# Get variables for env files
read -rp "Create .env file? (y/N): " CREATE_ENV
read -rp "Create .secret.env file? (y/N): " CREATE_SECRET_ENV

# Get variables for caddy
read -rp "Enter the service domain: " DOMAIN
read -rp "Enter the service port: " PORT
read -rp "Enter the target host: " HOST

mkdir -p "${NAME}"


parse_yn_bool() {
	bool_lower=$(echo "${1}" | tr '[:upper:]' '[:lower:]')
	# Map y/yes to true, otherwise false
	if [ "${bool_lower}" == "y" ] || [ "${bool_lower}" == "yes" ]; then
		return 0
	else
		return 1
	fi
}
parse_yn_str() {
	if parse_yn_bool "${1}"; then
		echo "true"
	else
		echo "false"
	fi
}

# Create the env files
YAML_ENV=""
if parse_yn_bool "${CREATE_ENV}" || parse_yn_bool "${CREATE_SECRET_ENV}"; then
	YAML_ENV="
	env_file:"
fi
if parse_yn_bool "${CREATE_ENV}"; then
	YAML_ENV="${YAML_ENV}
      - .env"
	touch "${NAME}/.env"
fi
if parse_yn_bool "${CREATE_SECRET_ENV}"; then
	YAML_ENV="${YAML_ENV}
      - .secret.env"
	touch "${NAME}/.secret.env"
fi


# Create the docker-compose file
cat <<EOF > "${NAME}/docker-compose.yml"
version: '3'
services:
  app:
	image: ${IMAGE}
	restart: always${YAML_ENV}
	labels:
	  com.centurylinklabs.watchtower.enable: $(parse_yn_str "${WATCHTOWER}")
	networks:
	  apps:
		aliases:
		  - ${NAME}
networks:
  apps:
	external: true
EOF

caddy_path="caddy/config/conf.${HOST}.d"
if [ ! -d "${caddy_path}" ]; then
	echo "Caddy config directory for host '${HOST}' not found, trying default"
	caddy_path="caddy/config/conf.d"
fi
if [ -d "${caddy_path}" ]; then
cat <<EOF > "$caddy_path/${DOMAIN}.conf"
${DOMAIN} {
  import default
  reverse_proxy ${NAME}:${PORT}
}
EOF
else
	echo "Caddy config directory not found, skipping caddy config"
fi