package ci

//  app:                dagger.#Artifact
//  prod_dockerfile:    string
//  docker_host:        string
//  dockerhub_username: string
//  dockerhub_password: dagger.#Secret
//  // Keep this in sync with ../docker/Dockerfile.production
//  runtime_image_ref: dagger.#Input & {string | *"thechangelog/runtime:2021-05-29T10.17.12Z"}
//  prod_image_ref:    dagger.#Input & {string | *"thechangelog/changelog.com:dagger"}
//  build_version:     dagger.#Input & {string}
//  git_sha:           dagger.#Input & {string}
//  git_author:        dagger.#Input & {string}
//  app_version:       dagger.#Input & {string}
//  build_url:         dagger.#Input & {string}
//  // Keep this in sync with manifests/changelog/db.yml
//  test_db_image_ref:      dagger.#Input & {string | *"circleci/postgres:12.6"}
//  test_db_container_name: "changelog_test_postgres"
//  run_test:               dagger.#Input & {bool}
//  
//  // STORY #######################################################################
//  //
//  // 1. Migrate from CircleCI to GitHub Actions
//  //    - extract existing build pipeline into Dagger
//  //    - run the pipeline locally
//  //    - run the pipeline in GitHub Actions
//  //
//  // 2. Pipeline is up to 9x quicker (40s vs 370s)
//  //    - optimistic branching, as pipelines were originally intended
//  //    - use our own hardware - Linode g6-dedicated-8
//  //    - predictable runs, no queuing
//  //    - caching is buildkit layers
//  //
//  // 3. Open Telemetry integration out-of-the-box
//  //    - visualise all steps in Jaeger UI
//  
//  // CI PIPELINE OVERVIEW ########################################################
//  //
//  //                  deps_compile_test      deps_compile_dev  /--- deps_compile_prod
//  //                  |                      |                 |    |
//  //                  v                      v                 |    v
//  //                  test_cache             assets_dev        |    image_prod_cache
//  //                  |                      |                 |    |
//  //                  v                      v                 |    |
//  // test_db_start -> test -> test_db_stop   assets_prod <-----/    |
//  //                  |                      |                      |
//  //                  |                      v                      |
//  //                  |                      image_prod <-----------/
//  //
//  //....................................... TODO .................................
//  //                  |                      |
//  //                  |                      v
//  //                  \--------------------> image_prod_digest
//  //
//  // ========================== BEFORE | AFTER | CHANGE ===================================
//  // Test, build & push           370s |   40s |  9.25x | https://app.circleci.com/pipelines/github/thechangelog/changelog.com/520/workflows/fbb7c701-d25a-42c1-b42c-db514cd770b4
//  // + app compile                220s |  150s |  1.46x | https://app.circleci.com/pipelines/github/thechangelog/changelog.com/582/workflows/65500f3d-eccc-49da-9ab0-69846bc812a7
//  // + deps compile               480s |  190s |  2.52x | https://app.circleci.com/pipelines/github/thechangelog/changelog.com/532/workflows/94f5a339-52a1-45ba-b39b-1bbb69ed6488
//  //
//  // Uncached                     ???s |  465s | ?.??x  |
//  //
//  // #############################################################################
//  
//  
//  
//  
//  deps_compile_prod: #deps_compile & {
//   args: {
//    MIX_ENV: "prod"
//   }
//  }
//  
//  image_prod_cache: docker.#Build & {
//   source:     deps_compile_prod
//   dockerfile: """
//     FROM \(runtime_image_ref)
//     COPY /app/ /app/
//     WORKDIR /app
//     RUN --mount=type=cache,id=deps,target=/mnt/app/deps,sharing=locked cp -Rp /mnt/app/deps/* /app/deps/
//     RUN --mount=type=cache,id=build_prod,target=/mnt/app/_build/prod,sharing=locked cp -Rp /mnt/app/_build/prod/* /app/_build/prod/
//    """
//  }
//  
//  image_prod: docker.#Command & {
//   host: docker_host
//   copy: {
//    "/tmp/app": from: os.#Dir & {
//     from: image_prod_cache
//     path: "/app"
//    }
//  
//    "/tmp/app/priv/static": from: os.#Dir & {
//     from: assets_prod
//     path: "/app/priv/static"
//    }
//   }
//   env: {
//    GIT_AUTHOR:         git_author
//    GIT_SHA:            git_sha
//    APP_VERSION:        app_version
//    BUILD_VERSION:      build_version
//    BUILD_URL:          build_url
//    DOCKERHUB_USERNAME: dockerhub_username
//    PROD_IMAGE_REF:     prod_image_ref
//   }
//   files: "/tmp/Dockerfile":                  prod_dockerfile
//   secret: "/run/secrets/dockerhub_password": dockerhub_password
//   command: #"""
//    cd /tmp
//    docker build --build-arg GIT_AUTHOR="$GIT_AUTHOR" --build-arg GIT_SHA="$GIT_SHA" --build-arg APP_VERSION="$APP_VERSION" --build-arg BUILD_URL="$BUILD_URL" --tag "$PROD_IMAGE_REF" .
//    docker login --username "$DOCKERHUB_USERNAME" --password "$(cat /run/secrets/dockerhub_password)"
//    docker push "$PROD_IMAGE_REF" | tee docker.push.log
//    echo "$PROD_IMAGE_REF" > image.ref
//    awk '/digest/ { print $3 }' < docker.push.log > image.digest
//    """#
//  }