FROM oven/bun AS base
WORKDIR /app

# Install dependencies
FROM base AS install
RUN mkdir -p /temp/dev
COPY package.json bun.lock /temp/dev/
RUN cd /temp/dev && bun install --frozen-lockfile

RUN mkdir -p /temp/prod
COPY package.json bun.lock /temp/prod/
RUN cd /temp/prod && bun install --frozen-lockfile --production

# Build
FROM base AS build
COPY --from=install /temp/dev/node_modules node_modules
COPY . .
ENV NODE_ENV=production
RUN bun run build

# Runtime
FROM base AS runtime
COPY --from=install /temp/prod/node_modules node_modules
COPY --from=build /app/build build
COPY --from=build /app/package.json .

USER bun
ENV NODE_ENV=production
ENV PORT=3000
ENV HOST=0.0.0.0
EXPOSE 3000

CMD ["bun", "build/index.js"]