name: MVS Upload & Execute

on:
  push:
    branches: [ master ]
  pull_request:
    branches: [ master ]

jobs:
  upload-and-run:
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Find changed source files
        id: files
        run: |
          # List changed .c or .bas files (last commit)
          CHANGED_FILES=$(git diff --name-only HEAD~1 | grep -E '\.(c|bas)$' | head -1)
          if [ -z "$CHANGED_FILES" ]; then
            echo "No C/BAS files changed; skipping."
            exit 0
          fi
          echo "file=$CHANGED_FILES" >> $GITHUB_OUTPUT
          echo "member=$(basename $CHANGED_FILES .c)" >> $GITHUB_OUTPUT  # Or .bas

      - name: Upload to PDS and Submit JCL
        if: steps.files.outputs.file != ''
        run: |
          python3 mvs_job.py "${{ steps.files.outputs.file }}" "@05054.SRCLIB.C" "${{ steps.files.outputs.member }}" "COMPILE"
        env:
          MVS_HOST: "oldcomputernerd.com"

      - name: Report Status
        run: |
          echo "Upload/Compile complete! Check TK5 JES for JOB ${{ steps.files.outputs.member }} output."