# Base Image
FROM node:22-alpine AS base
WORKDIR /app

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

# Copy manifest files first to cache dependencies
COPY pnpm-lock.yaml package.json ./

# Install dependencies
RUN pnpm install

# --- Development Stage ---
FROM base AS development
COPY . .
# Astro default port
EXPOSE 4321 
# --host is required to expose the server to the container
CMD ["pnpm", "dev", "--host"]

# --- Build Stage ---
FROM base AS build
COPY . .
RUN pnpm build

# --- Production Stage ---
FROM base AS production
WORKDIR /app

# We install 'serve' globally here so we don't rely on node_modules
# This keeps the final image smaller/cleaner
RUN npm install -g serve

# Copy the built output from the build stage
# Astro outputs to 'dist' by default
COPY --from=build /app/dist ./dist
COPY serve.json ./dist

# Expose the port you want for production (e.g., 3000 or 80)
EXPOSE 3000

CMD ["serve", "dist", "-l", "3000", "--config", "serve.json"]