Dockerfile

FROM node:20-slim

# Set noninteractive installation
ENV DEBIAN_FRONTEND=noninteractive

# Build timestamp to force cache invalidation: 2026-01-12T22:15

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

# Create app directory
WORKDIR /app

# Copy package files first for better caching
COPY trigo-web/package*.json ./
COPY trigo-web/app/package*.json ./app/
COPY trigo-web/backend/package*.json ./backend/

# Copy .env files
COPY trigo-web/.env* ./
COPY trigo-web/app/.env* ./app/
COPY trigo-web/backend/.env* ./backend/

# Install build tools globally
RUN npm install -g tsx jison typescript esbuild

# Install production dependencies only at root level
RUN npm install --omit=dev

# Install app runtime dependencies (for onnxruntime-web)
RUN cd app && npm install --omit=dev

# Install backend dependencies
RUN cd backend && npm install

# Copy pre-built frontend dist folder (includes ONNX models and WASM files via LFS)
COPY trigo-web/app/dist/ ./app/dist/

# Copy public folder
COPY trigo-web/public/ ./public/

# Copy inc folder (shared types)
COPY trigo-web/inc/ ./inc/

# Copy backend source and build with esbuild
COPY trigo-web/backend/src/ ./backend/src/
COPY trigo-web/backend/tsconfig.json ./backend/
RUN mkdir -p backend/dist/backend/src && \
    esbuild backend/src/server.ts --bundle --platform=node --target=node20 --format=esm --outfile=backend/dist/backend/src/server.js --external:express --external:socket.io --external:cors --external:dotenv --external:uuid

# Copy the pre-built parser
COPY trigo-web/public/lib/tgnParser.cjs ./public/lib/

# Set environment variables for Hugging Face Spaces
ENV PORT=7860
ENV HOST=0.0.0.0
ENV NODE_ENV=production

# Expose port 7860 (required by Hugging Face Spaces)
EXPOSE 7860

# Start backend server (which will also serve frontend static files)
CMD ["npm", "run", "start:prod"]