#!/usr/bin/env bash
set -euo pipefail

REPO_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
SERVICE_NAME="clawtap.service"
UNIT_DIR="$HOME/.config/systemd/user"
ENV_FILE="$HOME/.clawtap/env"
UNIT_FILE="$UNIT_DIR/$SERVICE_NAME"

# --- Install systemd unit if missing ---
if [ ! -f "$UNIT_FILE" ]; then
  echo "Installing $SERVICE_NAME..."

  if [ ! -f "$ENV_FILE" ]; then
    echo "ERROR: $ENV_FILE not found."
    echo "Create it with at minimum:"
    echo "  CLAWTAP_PASSWORD=your-password-here"
    exit 1
  fi

  mkdir -p "$UNIT_DIR"
  cat > "$UNIT_FILE" <<EOF
[Unit]
Description=ClawTap — mobile UI for AI coding sessions
After=network-online.target
Wants=network-online.target

[Service]
Type=simple
WorkingDirectory=$REPO_DIR
Environment=HOME=$HOME
Environment=PATH=/usr/local/bin:/usr/bin:/bin
EnvironmentFile=$ENV_FILE
ExecStart=$REPO_DIR/node_modules/.bin/tsx $REPO_DIR/server/index.ts
Restart=on-failure
RestartSec=5
StandardOutput=append:$HOME/.clawtap/server.log
StandardError=append:$HOME/.clawtap/server.log

[Install]
WantedBy=default.target
EOF

  systemctl --user daemon-reload
  systemctl --user enable "$SERVICE_NAME"
  echo "Service installed and enabled."
fi

# --- Build frontend ---
echo "Building frontend..."
cd "$REPO_DIR"
npm run build

# --- Install CLI binary ---
echo "Installing CLI binary..."
sudo cp "$REPO_DIR/bin/clawtap" /usr/bin/clawtap

# --- Restart ---
echo "Restarting $SERVICE_NAME..."
systemctl --user restart "$SERVICE_NAME"

echo "Status:"
systemctl --user status "$SERVICE_NAME" --no-pager