FROM node:20-alpine AS base

# Install pnpm
RUN npm install -g pnpm

# Set working directory
WORKDIR /app

# Copy package.json and install dependencies
FROM base AS dependencies
COPY package.json ./
RUN pnpm install

# Build the application
FROM dependencies AS build
COPY . .
RUN pnpm run build

# Production image
FROM node:20-alpine AS production
WORKDIR /app

# Copy built application
COPY --from=build /app/dist ./dist
COPY --from=build /app/node_modules ./node_modules
COPY package.json ./

# Set environment variables
ENV NODE_ENV=production
ENV PORT=3000

# Expose port
EXPOSE ${PORT}

# Start the application
CMD ["node", "dist/main"]