name: Perform linting and run tests

on:
  push:
    branches:
      - master
  pull_request:
    branches:
      - master
  workflow_dispatch:

jobs:
  build-and-test:
    name: Build, Lint, and Test
    runs-on: ubuntu-latest
    if: "! contains(toJSON(github.event.commits.*.message), '[skip ci]')"
    env:
      COMPOSE_FILE: ./docker-compose.ci.yml

    steps:
      - name: Checkout code
        uses: actions/checkout@v3

      - name: Create and populate ENV file
        run: |
          echo MIX_ENV=test >> .env

      - name: Pull prebuilt images
        run: docker compose pull

      - name: Setup Docker layer caching
        uses: jpribyl/action-docker-layer-caching@v0.1.1
        continue-on-error: true
        with:
          key: ci-docker-cache-{hash}
          restore-keys: |
            ci-docker-cache-
            layer-ci-docker-cache-

      - name: Build and Run Docker image
        run: docker compose up --detach

      # NOTE: All exec commands use the -T flag to compensate for
      # a bug in the GitHub Actions runner where its stdin/stderr
      # will erroneously report that it's a TTY.
      # Aside from handling this bug the -T flag is not required
      # See https://github.com/actions/runner/issues/241 and https://github.com/docker/compose/issues/8537
      - name: Install Elixir and JS deps
        run: |
          docker compose exec -T phx yarn install && cd assets && yarn install && cd ..
          docker compose exec -T phx mix deps.get

      - name: Create and Migrate database
        run: |
          docker compose exec -T phx mix ecto.create
          docker compose exec -T phx mix ecto.migrate

      - name: Check JS formatting
        run: docker compose exec -T phx yarn run prettier . --check

      - name: Check Elixir formatting
        run: docker compose exec -T phx mix format --check-formatted

      - name: Check Credo
        run: docker compose exec -T phx mix credo

      - name: Run Elixir tests
        run: docker compose exec -T phx mix test