#!/bin/sh
set -eu

APP_DIR="${APP_DIR:-/srv/ptouch-web}"
LABEL_DIR="${LABEL_DIR:-/data/labels}"
PORT="${PORT:-8080}"
PTOUCH_SRC_DIR="${PTOUCH_SRC_DIR:-/tmp/ptouch-print}"
FLASK_APP="${FLASK_APP:-app.app}"
export FLASK_APP

cd "$APP_DIR"
mkdir -p "${LABEL_DIR:-/data/labels}"

echo "Starting P-Touch Web"
echo "APP_DIR=${APP_DIR}"
echo "LABEL_DIR=${LABEL_DIR}"
echo "FLASK_APP=${FLASK_APP}"
echo "PRINT_ENABLED=${PRINT_ENABLED:-1}"
echo "PRINT_COMMAND=${PRINT_COMMAND:-ptouch-print --image {image}}"

python3 - <<'PY'
import os

command = os.environ.get("PRINT_COMMAND", "ptouch-print --image {image}")
try:
    command.format(image="/tmp/test.png", copies=1)
except Exception as exc:
    raise SystemExit(f"ERROR: invalid PRINT_COMMAND: {exc}")
PY

if command -v apk >/dev/null 2>&1; then
  apk add --no-cache \
    build-base \
    cmake \
    gd \
    gd-dev \
    gettext \
    gettext-dev \
    git \
    libusb \
    libusb-dev \
    usbutils \
    pkgconf \
    ttf-dejavu
fi

if ! python3 -c "import flask, PIL, qrcode, barcode" >/dev/null 2>&1; then
  if [ -f requirements.txt ]; then
    python3 -m pip install --root-user-action=ignore --no-cache-dir -r requirements.txt
  else
    python3 -m pip install --root-user-action=ignore --no-cache-dir Flask Pillow
  fi
fi

if ! python3 -c "import qrcode, barcode" >/dev/null 2>&1; then
  python3 -m pip install --root-user-action=ignore --no-cache-dir qrcode python-barcode
fi

if ! command -v ptouch-print >/dev/null 2>&1 || ! ptouch-print --help 2>&1 | grep -q -- "--no-halfcut"; then
  rm -rf "$PTOUCH_SRC_DIR"
  git clone --depth 1 --branch farix-main https://github.com/farixembedded/ptouch-print.git "$PTOUCH_SRC_DIR"
  if [ -f "$APP_DIR/patches/ptouch-print-cut-options.patch" ]; then
    patch -d "$PTOUCH_SRC_DIR" -p1 < "$APP_DIR/patches/ptouch-print-cut-options.patch"
  fi
  cmake -S "$PTOUCH_SRC_DIR" -B "$PTOUCH_SRC_DIR/build" -DCMAKE_BUILD_TYPE=Release
  cmake --build "$PTOUCH_SRC_DIR/build"
  install -m 0755 "$PTOUCH_SRC_DIR/build/ptouch-print" /usr/local/bin/ptouch-print
fi

echo "ptouch-print: $(ptouch-print --version 2>/dev/null || echo installed)"

if [ ! -d /dev/bus/usb ]; then
  echo "WARNING: /dev/bus/usb is not mounted. USB printer access will not work."
else
  echo "USB devices visible in container:"
  lsusb 2>/dev/null || true
  find /dev/bus/usb -type c -maxdepth 3 -exec ls -l {} \; 2>/dev/null || true
fi

exec python3 -m flask --app "${FLASK_APP}" run --host=0.0.0.0 --port="${PORT}"