# Pastel UI - Static Export Docker Image
# Lightweight nginx-based static file server

# Stage 1: Dependencies
FROM node:20-alpine AS deps
RUN corepack enable && corepack prepare pnpm@latest --activate

WORKDIR /app

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

# Install dependencies
RUN pnpm install --frozen-lockfile

# Stage 2: Builder
FROM node:20-alpine AS builder
RUN corepack enable && corepack prepare pnpm@latest --activate

WORKDIR /app

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

# Copy source files
COPY . .

# Set build-time environment variables
ENV NEXT_TELEMETRY_DISABLED=1
ENV NODE_ENV=production

# Build static export
RUN pnpm build

# Stage 3: Production (nginx)
FROM nginx:alpine AS runner

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

# Copy custom nginx configuration for SPA routing and WASM support
COPY nginx.conf /etc/nginx/nginx.conf

# Create non-root user for nginx
RUN chown -R nginx:nginx /usr/share/nginx/html && \
    chmod -R 755 /usr/share/nginx/html

# Expose port 80
EXPOSE 80

# Health check (use 127.0.0.1 to force IPv4)
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
  CMD wget --no-verbose --tries=1 --spider http://127.0.0.1/ || exit 1

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