# ---- Build stage ----
FROM node:20-slim AS builder

WORKDIR /app

# Copy lockfile + manifest first for layer-cache efficiency
COPY package.json package-lock.json ./

# Reproducible install (includes devDeps needed for vite build)
RUN npm ci

# Copy source
COPY . .

# Build the React frontend → dist/
RUN npm run build

# ---- Runtime stage ----
FROM node:20-slim

WORKDIR /app

COPY package.json package-lock.json ./

# Production + tsx needed for server runtime
RUN npm ci

# Bring in the compiled frontend and server source
COPY --from=builder /app/dist ./dist
COPY server.ts ./

# Hugging Face Spaces requires port 7860
EXPOSE 7860

# HF_TOKEN must be added as a Repository Secret in Space settings
# It is read at runtime via process.env.HF_TOKEN

CMD ["npm", "run", "server"]