#!/bin/bash
# ============================================================
#  Zorro's Print Agent - macOS Auto-Start Installer
#
#  Run this from the same folder as zorros_print_agent.py on the
#  Mac that stays on at the store. It installs a LaunchAgent so the
#  kitchen print spooler starts on login and restarts if it exits.
# ============================================================

set -euo pipefail

APP_DIR="${HOME}/.zorros-print-agent"
ENV_FILE="${APP_DIR}/print-agent.env"
RUNNER="${APP_DIR}/run_print_agent.sh"
PLIST_DIR="${HOME}/Library/LaunchAgents"
PLIST_PATH="${PLIST_DIR}/com.zorros.printagent.plist"
LABEL="com.zorros.printagent"
SOURCE_DIR="$(cd "$(dirname "$0")" && pwd)"
SOURCE_AGENT="${SOURCE_DIR}/zorros_print_agent.py"

echo ""
echo "  ZORRO'S PRINT AGENT - MAC AUTO-START"
echo "  This installs the kitchen print spooler as a login service."
echo ""

if [ ! -f "${SOURCE_AGENT}" ]; then
  echo "ERROR: zorros_print_agent.py must be in the same folder as this installer."
  exit 1
fi

if ! command -v python3 >/dev/null 2>&1; then
  echo "ERROR: python3 was not found."
  echo "Install Python from https://python.org/downloads, then run this again."
  exit 1
fi

mkdir -p "${APP_DIR}" "${PLIST_DIR}"
cp "${SOURCE_AGENT}" "${APP_DIR}/zorros_print_agent.py"

echo "Installing Python dependency: requests"
python3 -m pip install requests --quiet --disable-pip-version-check

echo ""
echo "Checking phone-order readiness before setup..."
python3 "${SOURCE_AGENT}" --status || true
echo ""

if [ -z "${PRINT_BRIDGE_TOKEN:-}" ]; then
  printf "Enter the print bridge token from Veli: "
  read -r -s PRINT_BRIDGE_TOKEN
  echo ""
fi

if [ -z "${PRINT_BRIDGE_TOKEN:-}" ]; then
  echo "ERROR: PRINT_BRIDGE_TOKEN is required."
  exit 1
fi

printf "Printer IP [${PRINTER_IP:-192.168.213.109}]: "
read -r INPUT_PRINTER_IP
PRINTER_IP="${INPUT_PRINTER_IP:-${PRINTER_IP:-192.168.213.109}}"

printf "Printer port [${PRINTER_PORT:-9100}]: "
read -r INPUT_PRINTER_PORT
PRINTER_PORT="${INPUT_PRINTER_PORT:-${PRINTER_PORT:-9100}}"

cat > "${ENV_FILE}" <<EOF
export RAILWAY_URL="${RAILWAY_URL:-https://zorro-phone-agent-production.up.railway.app}"
export PRINT_BRIDGE_TOKEN="${PRINT_BRIDGE_TOKEN}"
export PRINTER_IP="${PRINTER_IP}"
export PRINTER_PORT="${PRINTER_PORT}"
export PRINT_POLL_INTERVAL="${PRINT_POLL_INTERVAL:-10}"
EOF
chmod 600 "${ENV_FILE}"

cat > "${RUNNER}" <<EOF
#!/bin/bash
set -euo pipefail
source "${ENV_FILE}"
cd "${APP_DIR}"
exec python3 "${APP_DIR}/zorros_print_agent.py"
EOF
chmod 700 "${RUNNER}"

cat > "${PLIST_PATH}" <<EOF
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN"
  "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
  <key>Label</key>
  <string>${LABEL}</string>
  <key>ProgramArguments</key>
  <array>
    <string>/bin/bash</string>
    <string>${RUNNER}</string>
  </array>
  <key>RunAtLoad</key>
  <true/>
  <key>KeepAlive</key>
  <true/>
  <key>WorkingDirectory</key>
  <string>${APP_DIR}</string>
  <key>StandardOutPath</key>
  <string>${APP_DIR}/print-agent.out.log</string>
  <key>StandardErrorPath</key>
  <string>${APP_DIR}/print-agent.err.log</string>
</dict>
</plist>
EOF

echo ""
echo "Testing Railway token + printer path with one setup ticket..."
set +e
source "${ENV_FILE}"
python3 "${APP_DIR}/zorros_print_agent.py" --test-bridge-print
TEST_STATUS=$?
set -e

if [ "${TEST_STATUS}" -ne 0 ]; then
  echo ""
  echo "WARNING: Setup ticket test failed."
  echo "The service will still install, but check Wi-Fi, printer IP, and PRINT_BRIDGE_TOKEN."
fi

echo ""
echo "Installing LaunchAgent..."
launchctl unload "${PLIST_PATH}" >/dev/null 2>&1 || true
launchctl load "${PLIST_PATH}"

echo ""
echo "DONE. Zorro's print spooler is installed."
echo "It will start when this Mac logs in and restart if it exits."
echo ""
echo "Useful commands:"
echo "  launchctl list | grep ${LABEL}"
echo "  tail -f ${APP_DIR}/print-agent.out.log"
echo "  tail -f ${APP_DIR}/print-agent.err.log"