name: Classify changed paths
description: One shared answer to "which suites does this change need", replacing per-workflow path regexes
inputs:
  base:
    description: Ref to diff against; the caller must have fetched it (fetch-depth 0)
    default: origin/${{ github.base_ref || 'main' }}
  head:
    description: Commit to diff to
    default: ${{ github.sha }}
outputs:
  run_unit_backend: { value: "${{ steps.c.outputs.run_unit_backend }}" }
  run_unit_ui: { value: "${{ steps.c.outputs.run_unit_ui }}" }
  run_api: { value: "${{ steps.c.outputs.run_api }}" }
  run_db: { value: "${{ steps.c.outputs.run_db }}" }
  run_playwright: { value: "${{ steps.c.outputs.run_playwright }}" }
  run_enterprise: { value: "${{ steps.c.outputs.run_enterprise }}" }
  changed_workflows: { value: "${{ steps.c.outputs.changed_workflows }}" }
  unknown: { value: "${{ steps.c.outputs.unknown }}" }
runs:
  using: composite
  steps:
    - id: c
      shell: bash
      env:
        BASE: ${{ inputs.base }}
        HEAD: ${{ inputs.head }}
      run: |
        CHANGED=$(git -c core.quotepath=false diff --name-only "$BASE" "$HEAD" 2>/dev/null || true)
        printf '%s\n' "$CHANGED" | "$GITHUB_ACTION_PATH/classify.sh" | tee -a "$GITHUB_OUTPUT"