#!/bin/bash

set -euo pipefail

if [ "$(id -u)" -ne 0 ]; then
  echo "run this installer as root" >&2
  exit 1
fi

SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd -P)"
PHOENIX_ROOT="$(cd "$SCRIPT_DIR/.." && pwd -P)"
SYSTEMD_SOURCE="$PHOENIX_ROOT/etc/systemd/system"
SUDOERS_SOURCE="$PHOENIX_ROOT/etc/sudoers.d/phoenix-update-volumio"
LIBEXEC_DIR="/usr/local/libexec/phoenix"

required_files=(
  "$SYSTEMD_SOURCE/analyzer-kiosk-volumio.service"
  "$SYSTEMD_SOURCE/analyzer-web-volumio.service"
  "$SYSTEMD_SOURCE/phoenix-update-volumio.service"
  "$SUDOERS_SOURCE"
  "$PHOENIX_ROOT/scripts/restart_phoenix_services.sh"
)

for path in "${required_files[@]}"; do
  if [ ! -f "$path" ]; then
    echo "required Volumio integration file missing: $path" >&2
    exit 1
  fi
done

if ! command -v visudo >/dev/null 2>&1; then
  echo "visudo not found; refusing to install sudo policy" >&2
  exit 1
fi
visudo -cf "$SUDOERS_SOURCE"

install -d -o root -g root -m 0755 "$LIBEXEC_DIR"
install -o root -g root -m 0755 \
  "$PHOENIX_ROOT/scripts/restart_phoenix_services.sh" \
  "$LIBEXEC_DIR/restart_phoenix_services.sh"
install -o root -g root -m 0644 \
  "$SYSTEMD_SOURCE/analyzer-kiosk-volumio.service" \
  /etc/systemd/system/analyzer-kiosk-volumio.service
install -o root -g root -m 0644 \
  "$SYSTEMD_SOURCE/analyzer-web-volumio.service" \
  /etc/systemd/system/analyzer-web-volumio.service
install -o root -g root -m 0644 \
  "$SYSTEMD_SOURCE/phoenix-update-volumio.service" \
  /etc/systemd/system/phoenix-update-volumio.service
install -o root -g root -m 0440 \
  "$SUDOERS_SOURCE" \
  /etc/sudoers.d/phoenix-update-volumio

systemctl daemon-reload
systemctl enable analyzer-web-volumio.service analyzer-kiosk-volumio.service

echo "Volumio integration installed"
echo "Existing services were not restarted"