---
name: CI

on:
  push:
    branches: [master]
  pull_request:

# If another push to the same PR or branch happens while this workflow is still running,
# cancel the earlier run in favor of the next run.
#
# There's no point in testing an outdated version of the code. GitHub only allows
# a limited number of job runners to be active at the same time, so it's better to cancel
# pointless jobs early so that more useful jobs can run sooner.
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

env:
  POETRY_VERSION: "1.7.1"

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-python@v5
        with:
          python-version: '3.10'
      - id: files
        uses: Ana06/get-changed-files@v2.2.0
      - id: set-matrix
        run: |
          python .github/scripts/check_diff.py ${{ steps.files.outputs.all }} >> $GITHUB_OUTPUT
    outputs:
      dirs-to-run: ${{ steps.set-matrix.outputs.dirs-to-run }}
      dirs-to-run-extended: ${{ steps.set-matrix.outputs.dirs-to-run-extended }}
  lint:
    name: cd ${{ matrix.working-directory }}
    needs: [ build ]
    strategy:
      matrix:
        working-directory: ${{ fromJson(needs.build.outputs.dirs-to-run) }}
    uses: ./.github/workflows/_lint.yml
    with:
      working-directory: ${{ matrix.working-directory }}
    secrets: inherit

  test:
    name: cd ${{ matrix.working-directory }}
    needs: [ build ]
    strategy:
      matrix:
        working-directory: ${{ fromJson(needs.build.outputs.dirs-to-run) }}
    uses: ./.github/workflows/_test.yml
    with:
      working-directory: ${{ matrix.working-directory }}
    secrets: inherit

  compile-integration-tests:
    name: cd ${{ matrix.working-directory }}
    needs: [ build ]
    strategy:
      matrix:
        working-directory: ${{ fromJson(needs.build.outputs.dirs-to-run) }}
    uses: ./.github/workflows/_compile_integration_test.yml
    with:
      working-directory: ${{ matrix.working-directory }}
    secrets: inherit

  dependencies:
    name: cd ${{ matrix.working-directory }}
    needs: [ build ]
    strategy:
      matrix:
        working-directory: ${{ fromJson(needs.build.outputs.dirs-to-run) }}
    uses: ./.github/workflows/_dependencies.yml
    with:
      working-directory: ${{ matrix.working-directory }}
    secrets: inherit

  extended-tests:
    name: "cd ${{ matrix.working-directory }} / make extended_tests #${{ matrix.python-version }}"
    needs: [ build ]
    if: ${{ needs.build.outputs.dirs-to-run-extended != '[]' }}
    strategy:
      matrix:
        # note different variable for extended test dirs
        working-directory: ${{ fromJson(needs.build.outputs.dirs-to-run-extended) }}
        python-version:
          - "3.8"
          - "3.9"
          - "3.10"
          - "3.11"
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: ${{ matrix.working-directory }}
    steps:
      - uses: actions/checkout@v4

      - name: Set up Python ${{ matrix.python-version }} + Poetry ${{ env.POETRY_VERSION }}
        uses: "./.github/actions/poetry_setup"
        with:
          python-version: ${{ matrix.python-version }}
          poetry-version: ${{ env.POETRY_VERSION }}
          working-directory: ${{ matrix.working-directory }}
          cache-key: extended

      - name: Install dependencies
        shell: bash
        run: |
          echo "Running extended tests, installing dependencies with poetry..."
          poetry install -E extended_testing --with test

      - name: Run extended tests
        run: make extended_tests

      - name: Ensure the tests did not create any additional files
        shell: bash
        run: |
          set -eu

          STATUS="$(git status)"
          echo "$STATUS"

          # grep will exit non-zero if the target message isn't found,
          # and `set -e` above will cause the step to fail.
          echo "$STATUS" | grep 'nothing to commit, working tree clean'
  ci_success:
    name: "CI Success"
    needs: [build, lint, test, compile-integration-tests, dependencies, extended-tests]
    if: |
      always()
    runs-on: ubuntu-latest
    env:
      JOBS_JSON: ${{ toJSON(needs) }}
      RESULTS_JSON: ${{ toJSON(needs.*.result) }}
      EXIT_CODE: ${{!contains(needs.*.result, 'failure') && !contains(needs.*.result, 'cancelled') && '0' || '1'}}
    steps:
      - name: "CI Success"
        run: |
          echo $JOBS_JSON
          echo $RESULTS_JSON
          echo "Exiting with $EXIT_CODE"
          exit $EXIT_CODE