# Stage 1: Install dependencies
FROM node:22-slim AS deps
WORKDIR /app
COPY package.json package-lock.json ./
RUN npm ci

# Stage 2: Build the application
FROM node:22-slim AS builder
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY . .

# Skip env validation during build (validated at runtime)
ENV SKIP_ENV_VALIDATION=1
ENV NEXT_TELEMETRY_DISABLED=1

RUN npm run build

# Stage 3: Production runner
FROM node:22-slim AS runner
WORKDIR /app

ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1

# Install tini for proper PID 1 handling
RUN apt-get update && apt-get install -y --no-install-recommends tini \
    && rm -rf /var/lib/apt/lists/*

# Create non-root user
RUN addgroup --system --gid 1001 nodejs \
    && adduser --system --uid 1001 nextjs

# Copy standalone output
COPY --from=builder /app/public ./public
COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static

USER nextjs

EXPOSE 3000
ENV PORT=3000
ENV HOSTNAME="0.0.0.0"

ENTRYPOINT ["tini", "--"]
CMD ["node", "server.js"]