# Build stage for Rust engine
FROM rust:1.75-bookworm as rust-builder
WORKDIR /app
RUN apt-get update && apt-get install -y pkg-config libssl-dev
COPY rust-engine /app/rust-engine
WORKDIR /app/rust-engine
# Pre-build to cache dependencies
RUN cargo build --release

# Build stage for Node/React frontend
FROM node:20-bookworm as node-builder
WORKDIR /app
COPY package*.json ./
RUN npm install
COPY . .
RUN npm run build

# Final runtime stage
FROM node:20-bookworm
# Install system dependencies including those needed for Rust toolchain
RUN apt-get update && apt-get install -y --no-install-recommends \
    ca-certificates \
    curl \
    build-essential \
    pkg-config \
    libssl-dev \
    git \
    && update-ca-certificates \
    && rm -rf /var/lib/apt/lists/*

# Install Rust toolchain safely
RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
ENV PATH="/root/.cargo/bin:${PATH}"

WORKDIR /app

# Copy built assets
COPY --from=node-builder /app/dist /app/dist
COPY --from=node-builder /app/package*.json /app/
COPY --from=node-builder /app/server.ts /app/
COPY --from=node-builder /app/node_modules /app/node_modules
COPY --from=node-builder /app/tsconfig.json /app/
COPY --from=node-builder /app/src /app/src
# Copy the rust-engine source and pre-built artifacts
COPY --from=rust-builder /app/rust-engine /app/rust-engine

# Hugging Face Spaces defaults
ENV PORT=7860
ENV NODE_ENV=production
# Force 0.0.0.0
ENV HOST=0.0.0.0

EXPOSE 7860

# Start the unified server
# Using tsx to run the server.ts entry point which manages the Rust sidecar
CMD ["npx", "tsx", "server.ts"]