# 1. Base image
FROM node:20-alpine AS base

# 2. Install pnpm
RUN npm install -g pnpm

# 3. Set working directory
WORKDIR /app

# 4. Copy dependency files and install dependencies
COPY package.json pnpm-lock.yaml ./
RUN pnpm install --frozen-lockfile

# 5. Copy all source code
COPY . .

# 6. Build the application
RUN pnpm run build

# 7. Set up the final image
FROM base AS final

WORKDIR /app

COPY --from=base /app/.svelte-kit ./.svelte-kit
COPY --from=base /app/node_modules ./node_modules
COPY --from=base /app/package.json ./package.json

# 8. Expose port and start the preview server
EXPOSE 4173
CMD ["pnpm", "run", "preview", "--host", "0.0.0.0", "--port", "4173"]