# Multi-stage Dockerfile for MycroZine Web App
# Based on decolonize-time-website pattern

FROM node:20-alpine AS base
RUN corepack enable && corepack prepare pnpm@latest --activate

# Dependencies stage
FROM base AS deps
WORKDIR /app

# Copy package files from web directory
COPY web/package.json web/pnpm-lock.yaml* web/package-lock.json* web/yarn.lock* ./

# Install dependencies
RUN \
  if [ -f pnpm-lock.yaml ]; then pnpm install --frozen-lockfile; \
  elif [ -f package-lock.json ]; then npm ci; \
  elif [ -f yarn.lock ]; then yarn --frozen-lockfile; \
  else npm install; \
  fi

# Builder stage
FROM base AS builder
WORKDIR /app

# Copy dependencies
COPY --from=deps /app/node_modules ./node_modules

# Copy web app source
COPY web/ ./

# Copy the mycro-zine library source (needed for layout generation)
COPY src/ ../src/

# Set build-time environment variables
ARG GEMINI_API_KEY
ARG NEXT_PUBLIC_APP_URL=https://zine.jeffemmett.com

ENV GEMINI_API_KEY=$GEMINI_API_KEY
ENV NEXT_PUBLIC_APP_URL=$NEXT_PUBLIC_APP_URL
ENV NEXT_TELEMETRY_DISABLED=1

# Build the application
RUN npm run build

# Production runner stage
FROM base AS runner
WORKDIR /app

# Set runtime environment
ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1
ENV PORT=3000
ENV HOSTNAME="0.0.0.0"

# Create non-root user for security
RUN addgroup --system --gid 1001 nodejs
RUN adduser --system --uid 1001 nextjs

# Copy built application
COPY --from=builder /app/public ./public

# Set permissions for prerender cache
RUN mkdir .next
RUN chown nextjs:nodejs .next

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

# Copy the mycro-zine library for runtime
COPY --chown=nextjs:nodejs src/ ../src/

# Create data directory for zine storage
RUN mkdir -p /app/data/zines && chown -R nextjs:nodejs /app/data

# Switch to non-root user
USER nextjs

# Expose port
EXPOSE 3000

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
  CMD wget --no-verbose --tries=1 --spider http://localhost:3000/ || exit 1

# Start the application
CMD ["node", "server.js"]