install.sh

#!/bin/bash

source scripts/functions.sh

# Necessary variables
ENV_FILE="./.env"
DB_TEST_COUNT=15

# Inform git information
check_git_branch
sleep 2 # Sleep for people to be able to read above information.

# Check if user is in docker group
check_docker_group

# Install all the dependencies, if missing.
install_dependencies

docker network create frontend
docker network create -d bridge app

if test -f "$ENV_FILE"; then
	printf "%s seems to exist already, installing automatically.\n" "$ENV_FILE"
	source "$ENV_FILE"
	initiate "$APP_DATABASE_URL" "$DB_TEST_COUNT" "$ENV_FILE"
	exit
else
	printf "%s does not exist. Installing interactively.\n" "$ENV_FILE"

  printf "\nEnter a DNS-registred domain name. You must have a valid SSL-certificate for the domain.\n";

  read -rep $'(Leave blank, if you don\'t have any, because you are doing a test install)\nDomain Name: ' DOMAIN

  # If domain was left empty, ask if they want a test environment setup done?
  if [ -z "$DOMAIN" ]; then
    printf "\nThe installer can do a test environment setup. \
    \nIt will setup a domain name for testing, configure the NGINX proxy and generate a locally valid SSL-certificate.\
    \n(This part of the installer has only been tested on Ubuntu Desktop 22.04)\n";
 
	  read -rep $'Do a test environment setup? (Y/N):' testsetup
    # If yes, do test environment setup
	  if [[ $testsetup == [yY] || $testsetup == [yY][eE][sS] ]]; then
      DOMAIN="www.displaytest.dk";
      setup_test_environment  
    fi
  fi

	read -rep $'\n[1]: If you want to use the included MariaDB image\n[2]: If you already have a MariaDB server\n' MARIADB
	if [[ "$MARIADB" -ne 1 && "$MARIADB" -ne 2 ]]; then
		printf "You have to choose either 1 or 2!";
	fi

	# Create necessary variables for database connection
	if [[ "$MARIADB" -eq 2 ]]; then
		read -rep $'Database Username: ' DB_USER
		read -rep $'Database Password: ' DB_PASS
		read -rep $'Database Name: ' DB_NAME
		read -rep $'Database Host: ' DB_HOST
		read -rep $'Database Port: ' DB_PORT
		read -rep $'MariaDB Version: ' DB_VERSION
		DSN="mysql:\/\/$DB_USER:$DB_PASS@$DB_HOST:$DB_PORT\/$DB_NAME?serverVersion=mariadb-$DB_VERSION"
	elif [[ "$MARIADB" -eq 1 ]]; then
		DSN=$(autogenerate_dsn)
		# shellcheck disable=SC2034
		CLEAN_DSN=$(echo "$DSN" | sed 's/\\//g')
		DB_USER=$(echo "$CLEAN_DSN" | grep -oP "mysql://\K(.+?):" | cut -d: -f1)
		DB_PASS=$(echo "$CLEAN_DSN" | grep -oP "mysql://.*:\K(.+?)@" | cut -d@ -f1)
		DB_HOST=$(echo "$CLEAN_DSN" | grep -oP "mysql://.*@\K(.+?):" | cut -d: -f1)
		DB_PORT=$(echo "$CLEAN_DSN" | grep -oP "mysql://.*@.*:\K(\d+)/" | cut -d/ -f1)
		DB_NAME=$(echo "$CLEAN_DSN" | grep -oP "mysql://.*@.*:.*/\K(.+?)$" | cut -f1 -d"?")
	fi

	# Autogenerate the rest
	JWT_PASSPHRASE=$(generate_random_string_base64)
	SECRET=$(generate_random_string_base64)
	DB_ROOT_PASS=$(generate_random_string)

	# Update .env file
	printf "Copying .env.example to .env\n"
	cp .env.example $ENV_FILE
	printf "Updating .env file\n"
	sed -i "s/=DB_USER/=$DB_USER/g" $ENV_FILE
	sed -i "s/=DB_PASS/=$DB_PASS/g" $ENV_FILE
	sed -i "s/=DB_ROOT_PASS/=$DB_ROOT_PASS/g" $ENV_FILE
	sed -i "s/=DB_NAME/=$DB_NAME/g" $ENV_FILE
	sed -i "s/=JWT_PASSPHRASE/=$JWT_PASSPHRASE/g" $ENV_FILE
	sed -i "s/=SECRET/=$SECRET/g" $ENV_FILE
	sed -i "s/=\"DSN/=\"$DSN/g" $ENV_FILE
	sed -i "s/=DOMAIN/=$DOMAIN/g" $ENV_FILE
	sed -i "s/https:\/\/DOMAIN/https:\/\/$DOMAIN/g" $ENV_FILE
	sed -i "s/DOMAIN:8093/$DOMAIN:8093/g" $ENV_FILE

	initiate "$DSN" "$DB_TEST_COUNT"

	printf "And now you're done!\n"

  if [[ $testsetup == [yY] || $testsetup == [yY][eE][sS] ]]; then
    printf "Open a browser on this PC and check it out!\n"
    printf "Access OS2Display Admin and Screen client on these URL's.\n"
  else
    printf "\nOS2Display is now installed.\n"
    printf "Now you need to configure NGINX and provide a SSL certificate\n"
    printf "When done you can access OS2Display Admin and Screen client on these URL's.\n"
  fi
  printf "#########################################\n"
  printf "Admin site URL:  https://$DOMAIN/admin\n"
  printf "Screen client URL:  https://$DOMAIN/client\n"
  printf "#########################################\n"
fi