FROM drogonframework/drogon:latest

WORKDIR /app

# Install additional dependencies
RUN apt-get update && apt-get install -y \
    pkg-config \
    git \
    cmake \
    libhiredis-dev \
    curl \
    libssl-dev \
    && rm -rf /var/lib/apt/lists/*

# Try to install redis-plus-plus from package manager first
RUN apt-get update && \
    (apt-get install -y libredis++-dev || echo "Package not available") && \
    rm -rf /var/lib/apt/lists/*

# If redis-plus-plus wasn't available from package manager, build from source
RUN if ! pkg-config --exists redis++; then \
        echo "Building redis-plus-plus from source..." && \
        git clone --depth 1 https://github.com/sewenew/redis-plus-plus.git && \
        cd redis-plus-plus && \
        mkdir build && \
        cd build && \
        cmake -DCMAKE_BUILD_TYPE=Release \
              -DREDIS_PLUS_PLUS_CXX_STANDARD=17 \
              -DREDIS_PLUS_PLUS_BUILD_TEST=OFF \
              -DREDIS_PLUS_PLUS_BUILD_STATIC=OFF \
              -DCMAKE_INSTALL_PREFIX=/usr/local .. && \
        make -j$(nproc) && \
        make install && \
        cd ../.. && \
        rm -rf redis-plus-plus; \
    fi

# Install jwt-cpp (header-only library)
RUN git clone --depth 1 https://github.com/Thalhammer/jwt-cpp.git && \
    cd jwt-cpp && \
    mkdir build && \
    cd build && \
    cmake .. && \
    make install && \
    cd ../.. && \
    rm -rf jwt-cpp

# Update library cache
RUN ldconfig

# Copy source code
COPY CMakeLists.txt ./
COPY src/ src/

# Clean any previous build
RUN rm -rf build CMakeCache.txt

# Create build directory
RUN mkdir -p build

# Build the chat service
RUN cd build && \
    cmake .. -DCMAKE_BUILD_TYPE=Release \
             -DCMAKE_INSTALL_RPATH="/usr/local/lib" \
             -DCMAKE_BUILD_WITH_INSTALL_RPATH=TRUE && \
    cmake --build . -j$(nproc)

# Copy configuration
COPY config.json .

# Expose port
EXPOSE 8081

# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=40s \
    CMD curl -f http://localhost:8081/api/chat/health 2>/dev/null || exit 1

# Create startup script
RUN echo '#!/bin/bash\n\
echo "Checking library dependencies..."\n\
ldd ./build/bin/chat_service\n\
echo "Starting chat service..."\n\
exec ./build/bin/chat_service' > start.sh && \
    chmod +x start.sh

# Run the service
CMD ["./start.sh"]