# syntax=docker/dockerfile:1

FROM python:3.11-slim

# Build-time DNS fix for environments with IPv6 issues (WSL2, certain CI systems)

# Ensures pip install works even if the container's DNS is broken

ARG PIP_INDEX_URL=https://pypi.org/simple/

WORKDIR /app

# Install system dependencies — cached separately from code changes

RUN apt-get update && apt-get install -y --no-install-recommends \

gcc \

g++ \

libffi-dev \

libjpeg-dev \

libopenjp2-7 \

curl \

&& rm -rf /var/lib/apt/lists/*

# Install Python dependencies before copying code (better layer cache)

COPY backend/requirements.txt ./requirements.txt

RUN pip install --no-cache-dir --timeout 120 -r requirements.txt

# Copy backend source code

COPY backend/ /app/

# Create required directories

RUN mkdir -p /app/data/sample /app/data/professionals /app/bin

EXPOSE 8001

HEALTHCHECK --interval=10s --timeout=5s --start-period=15s --retries=3 \

CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:8001/api/health')" || exit 1

CMD ["uvicorn", "server:app", "--host", "0.0.0.0", "--port", "8001"]