# syntax=docker/dockerfile:1

# ARG NODE_VERSION=20-alpine

# FROM node:${NODE_VERSION} AS base
FROM oven/bun:latest AS base
WORKDIR /app

FROM base AS deps
COPY package.json ./
# Install only production dependencies for the runtime image
RUN bun install --omit=dev

FROM base AS build
COPY package.json ./
# Install all dependencies for building (includes devDeps like typescript)
RUN bun install
COPY tsconfig.json ./
COPY src ./src
RUN bun run build

FROM base AS runner
ENV NODE_ENV=production
USER bun
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY package.json ./
COPY --from=build /app/dist ./dist
EXPOSE 3000
CMD ["bun", "dist/app.js"]