# ==============================================================================
# Stage 1: Build Audiveris from source (needs JDK 25 + Gradle)
# ==============================================================================
FROM eclipse-temurin:25-jdk AS audiveris-builder

RUN apt-get update && apt-get install -y --no-install-recommends git && \
    rm -rf /var/lib/apt/lists/*

# Clone Audiveris source
RUN git clone --depth 1 https://github.com/Audiveris/audiveris.git /audiveris

WORKDIR /audiveris

# Build Audiveris (installDist creates bin/ + lib/ with all JARs)
RUN chmod +x gradlew && \
    ./gradlew :app:installDist -x test -x javadoc --no-daemon

# ==============================================================================
# Stage 2: Runtime image (JRE 25 + Python 3.11 + Tesseract)
# ==============================================================================
FROM eclipse-temurin:25-jre

# Install Python, Tesseract, and system deps
RUN apt-get update && apt-get install -y --no-install-recommends \
        python3 \
        python3-pip \
        python3-venv \
        tesseract-ocr \
        tesseract-ocr-eng \
        libgl1 \
        libglib2.0-0 \
    && rm -rf /var/lib/apt/lists/*

# Copy built Audiveris
COPY --from=audiveris-builder /audiveris/app/build/install/app /opt/audiveris

# Make Audiveris script executable
RUN chmod +x /opt/audiveris/bin/Audiveris

# Set up Python virtual env (HF Spaces best practice)
RUN python3 -m venv /opt/venv
ENV PATH="/opt/venv/bin:$PATH"

# Install Python dependencies
COPY requirements-server.txt /tmp/requirements.txt
RUN pip install --no-cache-dir -r /tmp/requirements.txt

# Copy application code
WORKDIR /app
COPY core/ ./core/
COPY static/ ./static/
COPY app_gradio.py .
COPY convert_3part.py .

# Environment variables
ENV AUDIVERIS_BIN=/opt/audiveris/bin/Audiveris
ENV AUDIVERIS_MAX_HEAP=1500m
ENV JAVA_TOOL_OPTIONS="-Djava.awt.headless=true"
ENV MAX_PDF_PAGES=5
ENV GRADIO_SERVER_NAME=0.0.0.0
ENV GRADIO_SERVER_PORT=7860

EXPOSE 7860

CMD ["python", "app_gradio.py", "--port", "7860"]