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# ============================================
# Multi-stage Dockerfile for Antigravity API Proxy
# For deployment to HuggingFace Spaces
# ============================================

# Stage 1: Build Frontend
FROM node:20-alpine AS frontend-builder
WORKDIR /app
COPY package*.json ./
RUN npm ci --legacy-peer-deps
COPY . .
RUN npm run build

# Stage 2: Build Backend
FROM rust:1.83-slim AS backend-builder
RUN apt-get update && apt-get install -y pkg-config libssl-dev && rm -rf /var/lib/apt/lists/*
WORKDIR /app

# Copy server source
COPY server/ ./

# Build release binary
RUN cargo build --release

# Stage 3: Runtime
FROM debian:bookworm-slim

# Install runtime dependencies
RUN apt-get update && apt-get install -y \
    ca-certificates \
    curl \
    && rm -rf /var/lib/apt/lists/*

# Create non-root user (required by HuggingFace Spaces)
RUN useradd -m -u 1000 user
USER user
ENV HOME=/home/user
WORKDIR $HOME/app

# Copy backend binary
COPY --chown=user --from=backend-builder /app/target/release/antigravity-server ./

# Copy frontend static files
COPY --chown=user --from=frontend-builder /app/dist ./static

# Create data directory with accounts subdirectory
RUN mkdir -p /home/user/app/data/accounts

# Expose port
EXPOSE 7860

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD curl -f http://localhost:7860/healthz || exit 1

# Run the server
CMD ["./antigravity-server"]