#!/bin/bash
# This file is in the public domain.

# main.sh is the main script that asks the questions and
# puts the answers into environment variables located at  "config/taler-internal.conf or config/taler.conf" files
# Nginx configuration - Reads values directly from these "config files".

set -eu

# include functions source file

source functions.sh

# include variables from configuration
mkdir -p config/
touch config/user.conf config/internal.conf
# Values supplied by user
source config/user.conf
# Values we generated
source config/internal.conf

# Ask questions to user
# START USER INTERACTION
say "Welcome to the GNU Taler Debian setup!"
say ""
say "All configuration values asked during the setup script"
say "can be changed in config/user.conf"

ask_questions

# END USER INTERACTION

# Check DNS settings
if ! ping -c1 "exchange.${DOMAIN_NAME}" &>/dev/null; then
  say "Could not ping exchange.${DOMAIN_NAME}."
  say "Please make sure your DNS/network are working."
  exit 1
fi
if ! ping -c1 "bank.${DOMAIN_NAME}" &>/dev/null; then
  say "Could not ping bank.${DOMAIN_NAME}."
  say "Please make sure your DNS/network are working."
  exit 1
fi

if test -z "${BANK_EXCHANGE_PASSWORD:-}"; then
  BANK_EXCHANGE_PASSWORD=$(uuidgen)
  echo "BANK_EXCHANGE_PASSWORD=\"${BANK_EXCHANGE_PASSWORD}\"" >>config/internal.conf
fi

if test -z "${BANK_PORT:-}"; then
  echo "BANK_PORT=8080" >>config/user.conf
fi

if test -z "${PROTO:-}"; then
  if test "${ENABLE_TLS:-}" == "y"; then
    PROTO="https"
  else
    PROTO="http"
  fi
  echo "PROTO=$PROTO">>config/internal.conf
fi

# Check if the user is root, otherwise EXIT.
check_user

# Installation of deb packages required
. install_packages.sh

config_services

# Final message to the user
say "Congratulations, you have successfully installed GNU Taler"
say "Your bank is at ${PROTO}://bank.${DOMAIN_NAME}/"
say "A merchant is at ${PROTO}://backend.${DOMAIN_NAME}/"
say "You should set credentials for the merchant soon."

exit 0
# END INSTALLATION