Dockerfile.render

# DeckForge v0.1 — Render-optimized Dockerfile
# Slim build: no Chromium, no LibreOffice (thumbnails deferred to v0.2)
# Sync rendering only (decks under 10 slides)

# ── Stage 1: Builder ─────────────────────────────────────────────────────
FROM python:3.12-slim AS builder

WORKDIR /build

# Build dependencies for native extensions (psycopg, kiwisolver, Pillow)
RUN apt-get update && apt-get install -y --no-install-recommends \
    gcc \
    libpq-dev \
    && rm -rf /var/lib/apt/lists/*

COPY pyproject.toml ./
COPY src/ src/
# Install core dependencies only (skip preview extras — no pdf2image needed)
RUN pip install --no-cache-dir --prefix=/install .

# ── Stage 2: Runtime ─────────────────────────────────────────────────────
FROM python:3.12-slim AS runtime

# Minimal system deps: PostgreSQL client lib + fonts for text measurement
RUN apt-get update && apt-get install -y --no-install-recommends \
    libpq-dev \
    fonts-liberation \
    fonts-dejavu-core \
    fonts-open-sans \
    fontconfig \
    && rm -rf /var/lib/apt/lists/* \
    && fc-cache -f

ENV PYTHONUNBUFFERED=1
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONPATH=/app/src

# Non-root user for security
RUN useradd --create-home --shell /bin/bash deckforge
WORKDIR /app

# Copy installed packages from builder
COPY --from=builder /install /usr/local

# Copy application code
COPY src/ src/
COPY alembic/ alembic/
COPY alembic.ini .
COPY pyproject.toml .

# Ensure theme YAML files are included
COPY src/deckforge/themes/data/ src/deckforge/themes/data/

RUN chown -R deckforge:deckforge /app
USER deckforge

# Render injects PORT env var; expose default for local testing
EXPOSE 8000

HEALTHCHECK --interval=30s --timeout=5s --retries=3 \
    CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:' + __import__('os').environ.get('PORT', '8000') + '/v1/health')"

# Render sets PORT dynamically; uvicorn reads it from env
CMD uvicorn deckforge.main:app --host 0.0.0.0 --port ${PORT:-8000}