# syntax=docker/dockerfile:1.7
ARG NODE_VERSION=20.15.0
FROM node:${NODE_VERSION}-alpine AS build
WORKDIR /app

# Install all deps for build
COPY package*.json ./
RUN npm install && npm cache clean --force

# Build frontend
COPY . .
ENV NODE_ENV=production
ENV NODE_OPTIONS=--max-old-space-size=512
RUN npm run build

# ---- Runtime (Node.js server with static files) ----
FROM node:${NODE_VERSION}-alpine AS runtime
WORKDIR /app

# Install curl for healthcheck
RUN apk add --no-cache curl

# Copy package.json and production dependencies
COPY package*.json ./
RUN npm install --omit=dev && npm cache clean --force

# Copy server files and built frontend
COPY server ./server
COPY --from=build /app/dist ./dist

# Create data directory for volume mount
RUN mkdir -p /app/data && chown -R node:node /app/data

# Set data directory environment variable
ENV DATA_DIR=/app/data
ENV NODE_ENV=production
ENV PORT=80

# Switch to non-root user
USER node

EXPOSE 80
HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 \
  CMD curl -fsS http://localhost/api/health >/dev/null || exit 1

CMD ["npm", "start"]