# Multi-stage Dockerfile for Next.js 16 static export

# Stage 1: Dependencies
FROM node:22-alpine AS deps
RUN apk add --no-cache libc6-compat
WORKDIR /app

# Install pnpm
RUN corepack enable && corepack prepare pnpm@latest --activate

# Copy package files
COPY package.json pnpm-lock.yaml ./

# Install dependencies
RUN pnpm install --frozen-lockfile

# Stage 2: Builder
FROM node:22-alpine AS builder
WORKDIR /app

# Install pnpm
RUN corepack enable && corepack prepare pnpm@latest --activate

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

# Copy source code
COPY . .

# Build the application (static export)
RUN pnpm build

# Stage 3: Runner (serve static files)
FROM nginx:alpine AS runner

# Install curl for health check
RUN apk add --no-cache curl

# Copy custom nginx config
COPY --from=builder /app/nginx.conf /etc/nginx/nginx.conf

# Copy static files from build
COPY --from=builder /app/out /usr/share/nginx/html

# Expose port 80
EXPOSE 80

# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
  CMD curl -f http://localhost/ || exit 1

# Start nginx
CMD ["nginx", "-g", "daemon off;"]