name: MVS Delete Members

on:
  push:
    branches: [ master ]
    paths:
      - 'src/**'
      - 'jcl/**'
  workflow_dispatch:  # Allow manual trigger for cleanup

jobs:
  delete-members:
    runs-on: ubuntu-gitea

    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0  # Full history for git diff

      - name: Prepare environment
        id: setup
        run: |
          echo "=== Debug: Starting setup ==="
          apt-get update && apt install -y netcat-traditional python3-requests
          nc -h
          echo "=== Debug: Setup complete ==="

      - name: Find deleted source files
        id: deleted
        run: |
          echo "=== Debug: Starting deletion detection ==="
          echo "Current dir: $(pwd)"

          # Check if we have a parent commit
          if git rev-parse --verify HEAD~1 >/dev/null 2>&1; then
            echo "Parent commit exists; checking for deletions."
            DELETED_FILES=$(git diff --name-only --diff-filter=D HEAD~1 2>/dev/null | grep -E '\.(c|bas)$')
            echo "Deleted files from last commit: '${DELETED_FILES}'"
          else
            echo "No parent commit; no deletions to process."
            DELETED_FILES=""
          fi

          if [ -z "$DELETED_FILES" ]; then
            echo "No deleted C/BAS files found; skipping workflow."
            echo "has_deletions=false" >> $GITHUB_OUTPUT
            exit 0
          fi

          # Process deleted files - convert to space-separated list of members
          DELETED_MEMBERS=""
          for DFILE in $DELETED_FILES; do
            DEXT="${DFILE##*.}"
            DBASE=$(basename "$DFILE" ".$DEXT")
            DELETED_MEMBERS="$DELETED_MEMBERS $DBASE"
          done

          echo "Deleted members: $DELETED_MEMBERS"
          echo "deleted_members=$DELETED_MEMBERS" >> $GITHUB_OUTPUT
          echo "has_deletions=true" >> $GITHUB_OUTPUT
          echo "=== Debug: Deletion detection complete ==="

      - name: Delete removed members from PDS
        if: ${{ steps.deleted.outputs.has_deletions == 'true' }}
        run: |
          echo "=== Starting deletion of removed members ==="
          echo "Deleted members: ${{ steps.deleted.outputs.deleted_members }}"

          for MEMBER in ${{ steps.deleted.outputs.deleted_members }}; do
            echo "Deleting member: $MEMBER"
            python3 delete_mvs_member.py "@05054.SRCLIB.C($MEMBER)"
          done

          echo "=== Deletion complete ==="
        env:
          MVS_BATCH_PASSWORD: ${{ vars.MVS_BATCH_PASSWORD }}
          MVS_HOST: "oldcomputernerd.com"

      - name: Report Status
        if: ${{ steps.deleted.outputs.has_deletions == 'true' }}
        run: |
          echo "Deletion complete! Members removed from mainframe PDS."