# Dockerfile for production deployments of Alexandria.
# Based on the Bun Docker guide: https://bun.sh/guides/ecosystem/docker.

# Use the official Bun image
FROM oven/bun:1 AS base
WORKDIR /usr/src/app

# Install dependencies into temp directory.
# This will cache them and speed up future builds.
FROM base AS install
RUN mkdir -p /temp/dev
COPY package.json bun.lock /temp/dev/
RUN cd /temp/dev && bun install --frozen-lockfile

# Install with --production (exclude devDependencies)
RUN mkdir -p /temp/prod
COPY package.json bun.lock /temp/prod/
RUN cd /temp/prod && bun install --frozen-lockfile --production

# Copy node_modules from temp directory.
# Then copy all (non-ignored) project files into the image.
FROM base AS prerelease
COPY --from=install /temp/dev/node_modules node_modules
COPY . .

# [Optional] Tests & build.
ENV NODE_ENV=production
RUN bun test
RUN bun run build

# Copy production dependencies and source code into final image.
FROM base AS release
COPY --from=install /temp/prod/node_modules node_modules
COPY --from=prerelease /usr/src/app/index.ts .
COPY --from=prerelease /usr/src/app/package.json .

# Run the app.
USER bun
EXPOSE 3040/tcp
ENTRYPOINT [ "bun", "run", "index.ts" ]