#!/bin/bash
# Portable Systemd Service Installer for Chicken Counter Dashboard
set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
CURRENT_USER="$(id -un)"
SERVICE_NAME="chicken-dashboard.service"

echo "=== Chicken Dashboard Service Installer ==="
echo "Target User: $CURRENT_USER"
echo "Project Dir: $SCRIPT_DIR"

# Check if user wants user-level systemd (no root required) or system-level systemd
USER_SERVICE_DIR="$HOME/.config/systemd/user"
mkdir -p "$USER_SERVICE_DIR"

cat <<EOF > "$USER_SERVICE_DIR/$SERVICE_NAME"
[Unit]
Description=Chicken Counter Live Dashboard
After=network.target

[Service]
Type=simple
WorkingDirectory=$SCRIPT_DIR
ExecStart=$SCRIPT_DIR/start_dashboard.sh
Restart=always
RestartSec=5
Environment=PYTHONUNBUFFERED=1
Environment=PORT=8080

[Install]
WantedBy=default.target
EOF

echo ""
echo "✅ Installed user service to: $USER_SERVICE_DIR/$SERVICE_NAME"
echo ""
echo "To enable and start the dashboard service (runs on boot without sudo):"
echo "  systemctl --user daemon-reload"
echo "  systemctl --user enable --now $SERVICE_NAME"
echo "  loginctl enable-linger $CURRENT_USER   # Ensures service runs even if logged out"
echo ""
echo "To check status:"
echo "  systemctl --user status $SERVICE_NAME"
echo ""