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

ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
DEMO="${ROOT}/PaddleOCR-VL-1.6_Online_Demo"
cd "$DEMO"

unset VIRTUAL_ENV

if [[ -f "${ROOT}/.env" ]]; then
  set -a
  # shellcheck disable=SC1091
  source "${ROOT}/.env"
  set +a
fi

PIPELINE_PORT="${PIPELINE_PORT:-8090}"
GRADIO_PORT="${GRADIO_PORT:-7870}"
export API_URL="${API_URL:-http://127.0.0.1:${PIPELINE_PORT}/layout-parsing}"

echo "==> Starting PaddleOCR-VL-1.6 Online Demo"
echo "    API_URL: ${API_URL}"
echo "    Gradio:  http://127.0.0.1:${GRADIO_PORT}"

if command -v ss >/dev/null 2>&1 && ss -tln | grep -q ":${GRADIO_PORT} "; then
  echo "ERROR: Port ${GRADIO_PORT} is already in use." >&2
  echo "  The demo may already be running — open http://127.0.0.1:${GRADIO_PORT}" >&2
  echo "  To restart: stop the old process (e.g. fuser -k ${GRADIO_PORT}/tcp) then run this script again." >&2
  echo "  Or use another port: GRADIO_PORT=7871 ./scripts/run-demo.sh" >&2
  exit 1
fi

if [[ ! -d .venv ]]; then
  echo "==> Creating demo venv and installing requirements"
  uv venv .venv --python 3.12
  uv pip install --python .venv -r requirements.txt
fi

export GRADIO_SERVER_PORT="${GRADIO_PORT}"
export GRADIO_SERVER_NAME="127.0.0.1"
export GRADIO_MCP_SERVER="True"

exec uv run --no-project --python .venv/bin/python python app.py