validate_submission.yml

# merge submission on the main branch after a pullrequest approval
name: ValidateSubmission
on: 
  pull_request_target:
    branches: [ main ]
    paths:
      - 'previsioni/**'
      - '!**README**'
      
    
jobs:

  # Firts authenticate user based on PR details
  validate_request:
    runs-on: ubuntu-latest
    outputs: 
      # output_data: ${{ steps.compile_output.outputs.output_data }}
      validate_error_msg: ${{ steps.validate.outputs.message }}
      authenticate_error_msg: ${{ steps.authenticate.outputs.message }}
      changed_files:  ${{ steps.get_changed_files.outputs.all_changed_files }}
      is_valid: ${{ steps.validate.outputs.validate == 'success' && steps.authenticate.outputs.authenticate == 'success' }}
      
      
    steps:    

      # Check out the submission repo
      # -------------------------------------------      
      - name: Checkout code
        uses: actions/checkout@v3
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          ref: ${{ github.event.pull_request.head.sha }}

      
      # Checkout the python tools repo
      # used to authenticate and validate the PR
      # -------------------------------------------      
      - name: checkout python tools repo
        uses: actions/checkout@v3
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          repository: 'Predizioni-Epidemiologiche-Italia/hub-tools'
          ref: 'main'
          path: './tools'


      # Get changes from pull request 
      # --------------------------------      
      - name: Get changes
        id: get_changed_files
        uses: tj-actions/changed-files@v36
        
          
      # Authenticate the pull_request 
      # returns as output authentication = { True / False }
      # -------------------------------      
      - name: Execute Authentication script
        id: authenticate
        env:
          calling_actor: ${{ github.actor }}
          changed_files: ${{ steps.get_changed_files.outputs.all_changed_files }}
          
        run: python ./tools/.github/scripts/request_authentication/authenticate_request.py

        
      # If authenticated proceed with validation
      # returns as output validation = { True / False }
      # -------------------------------------------      
      - name: Execute Validation script
        id: validate
        env:
          changed_files: ${{ steps.get_changed_files.outputs.all_changed_files }}
          
        run: python ./tools/.github/scripts/forecast_validation/validate.py

      - name: Trace for Debug
        env:
          is_valid: ${{ steps.validate.outputs.validate == 'success' && steps.authenticate.outputs.authenticate == 'success' }}
        run: |
          echo " Auth: ${{ steps.authenticate.outputs.authenticate }}"
          echo " Val: ${{ steps.validate.outputs.validate }}"
          echo " IsVal: $is_valid" 

          
  # -------------------------------------------
  # SUCCESS
  # -------------------------------------------
  on_successful_validation:
    runs-on: ubuntu-latest
    needs: validate_request
    if: needs.validate_request.outputs.is_valid == 'true'

    steps:
      - name: DEBUG
        run: | 
          echo "Is_Valid: ${{ needs.validate_request.outputs.is_valid }}"
      
      # Checkout the forecast repo
      # ---------------------------
      - name: Checkout code
        uses: actions/checkout@v3
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          ref: "${{ github.event.pull_request.head.sha }}"
                    
      # Approve pull request 
      # ---------------------------
      - name: Approve Pull Request
        uses: juliangruber/approve-pull-request-action@v2.0.0
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          number: ${{ github.event.pull_request.number }}

      # Eventually comment on it
      - name: Comment PR
        uses: thollander/actions-comment-pull-request@v2
        with:
          message: |
            All checks completed successfully ! :wave:
          pr_number: ${{ github.event.pull_request.number }}

      # Merge changes  
      # ---------------------------    
      - name: Merge the pull request
        id: merge_pr
        run: |
          gh pr merge --auto --squash $PR_URL
          echo "status=true" >> $GITHUB_OUTPUT
        env:
          PR_URL: ${{ github.event.pull_request.html_url }}
          GH_TOKEN: ${{ secrets.WF_PR_PAT }}

      # Save changes to artifact for later persisting 
      - name: Save changes to artifact
        env:
          changed_files: ${{ needs.validate_request.outputs.changed_files }}
        run: |
          echo "{ \"pr-changes\" : \"$changed_files\" }" > pr_changes.json
        
      - name: Upload changes
        uses: actions/upload-artifact@v2
        with:
          name: pr_changes
          path: ./pr_changes.json

      
  # -------------------------------------------
  # FAILED
  # -------------------------------------------
  on_validation_failed:
    runs-on: ubuntu-latest
    needs: validate_request
    if: needs.validate_request.outputs.is_valid == 'false'
    
    steps:

      # DEBUG ONLY
      - name: DEBUG - DUMP INFO
        env:
          changed-files: ${{ needs.validate_request.outputs.changed_files }}
          
        run: |
          echo ">>> Is_Valid: ${{ needs.validate_request.outputs.is_valid }}"
          echo ">>> FAILED JOB "
          echo ">>> Changes: $changed-files"
          echo ">>> Repo: ${{ github.repository }}"
          echo ">>> SrcPath: $GITHUB_WORKSPACE"
          echo ">>> Pull request number: ${{ github.event.pull_request.number }}"
          echo ">>> Git hub actor: ${{ github.actor }}"
          echo ">>> Authenticate Error Message ${{ needs.validate_request.outputs.authenticate_error_msg  }}"
          echo ">>> Validate Error Message ${{  needs.validate_request.outputs.validate_error_msg }}"


      # Inform the user about what went wrong
      - name: Comment PR
        uses: thollander/actions-comment-pull-request@v2
        with:
          GITHUB_TOKEN: ${{ secrets.WF_PR_PAT }}
          message: |
            An error occurred. Validation: ${{  needs.validate_request.outputs.validate_error_msg }}. Authentication: ${{  needs.validate_request.outputs.authenticate_error_msg }}
          pr_number: ${{ github.event.pull_request.number }}