#!/usr/bin/env bash

readonly FILES=(
  "./config/motion.conf"
  "./config/msmtprc"
  "./config/muttrc"
  "./scripts/alert"
  "./scripts/cameras"
  "./scripts/notify"
  "./scripts/sync"
)

B2_BUCKET="my-bucket-name"
CAMERA_NAME="Kitchen"
DOMAIN="kitchen.example.com"
EMAIL_HOST="smtp.gmail.com"
EMAIL_PORT="587"
EMAIL_USER="user@example.com"
MOTION_PASSWORD="$(tr -dc A-Za-z0-9 </dev/urandom | head -c 24 ; echo '')"
MOTION_USER="${USER}"
NOTIFICATION_RECIPIENT="1234567890@sms.example.com"

input_settings() {
  local input

  # Set the B2 bucket name.
  printf "B2 Bucket (%s): " "${B2_BUCKET}"
  read -r input
  B2_BUCKET="${input:-$B2_BUCKET}"

  # Set the camera name.
  printf "Camera name (%s): " "${CAMERA_NAME}"
  read -r input
  CAMERA_NAME="${input:-$CAMERA_NAME}"

  # Set the domain.
  printf "Domain (%s): " "${DOMAIN}"
  read -r input
  DOMAIN="${input:-$DOMAIN}"

  # Set the Email user and sender.
  printf "Email host (%s): " "${EMAIL_HOST}"
  read -r input
  EMAIL_HOST="${input:-$EMAIL_HOST}"

  # Set the Email port and sender.
  printf "Email port (%s): " "${EMAIL_PORT}"
  read -r input
  EMAIL_PORT="${input:-$EMAIL_PORT}"

  # Set the Email user and sender.
  printf "Email user (%s): " "${EMAIL_USER}"
  read -r input
  EMAIL_USER="${input:-$EMAIL_USER}"

  # Set the Email password.
  printf "Email password (%s): " "${EMAIL_PASSWORD}"
  read -r input
  EMAIL_PASSWORD="${input:-$EMAIL_PASSWORD}"

  # Set the Motion user for webcontrol and livestream.
  printf "Motion user (%s): " "${MOTION_USER}"
  read -r input
  MOTION_USER="${input:-$MOTION_USER}"

  # Set the Motion password for webcontrol and livestream.
  printf "Motion password (%s): " "${MOTION_PASSWORD}"
  read -r input
  MOTION_PASSWORD="${input:-$MOTION_PASSWORD}"

  # Set the notification recipient.
  printf "Notification recipient (%s): " "${NOTIFICATION_RECIPIENT}"
  read -r input
  NOTIFICATION_RECIPIENT="${input:-$NOTIFICATION_RECIPIENT}"
}

print_settings() {
  printf "Your settings:\n"
  printf "B2 Bucket: %s\n" "${B2_BUCKET}"
  printf "Camera name: %s\n" "${CAMERA_NAME}"
  printf "Domain: %s\n" "${DOMAIN}"
  printf "Email host: %s\n" "${EMAIL_HOST}"
  printf "Email port: %s\n" "${EMAIL_PORT}"
  printf "Email user: %s\n" "${EMAIL_USER}"
  printf "Email password: %s\n" "${EMAIL_PASSWORD}"
  printf "Motion user: %s\n" "${MOTION_USER}"
  printf "Motion password: %s\n" "${MOTION_PASSWORD}"
  printf "Notification recipient: %s\n" "${NOTIFICATION_RECIPIENT}"
}

write_settings() {
  for f in "${FILES[@]}"; do
    sed -i "s/\${B2_BUCKET}/${B2_BUCKET}/g" "${f}"
    sed -i "s/\${CAMERA_NAME}/${CAMERA_NAME}/g" "${f}"
    sed -i "s/\${DOMAIN}/${DOMAIN}/g" "${f}"
    sed -i "s/\${EMAIL_HOST}/${EMAIL_HOST}/g" "${f}"
    sed -i "s/\${EMAIL_PORT}/${EMAIL_PORT}/g" "${f}"
    sed -i "s/\${EMAIL_USER}/${EMAIL_USER}/g" "${f}"
    sed -i "s/\${EMAIL_PASSWORD}/${EMAIL_PASSWORD}/g" "${f}"
    sed -i "s/\${MOTION_USER}/${MOTION_USER}/g" "${f}"
    sed -i "s/\${MOTION_PASSWORD}/${MOTION_PASSWORD}/g" "${f}"
    sed -i "s/\${NOTIFICATION_RECIPIENT}/${NOTIFICATION_RECIPIENT}/g" "${f}"
  done
}

main() {
  input_settings

  print_settings

  echo "Update files?"
  select yn in "yes" "no"; do
    case "${yn}" in
      yes ) write_settings && exit 0 ;;
      no ) exit 0 ;;
    esac
  done
}

main "$@"