action.yml

name: Determine Version
description: Determine version string from inputs or generate from date

inputs:
  version:
    description: 'Explicit version string (leave empty for auto-generation)'
    required: false
    default: ''
  date-format:
    description: 'Date format for auto-generated version'
    required: false
    default: '%Y.%m.%d'
  branch-name:
    description: 'Branch name to extract version from (for release branches)'
    required: false
    default: ''

outputs:
  version:
    description: 'Determined version string'
    value: ${{ steps.determine.outputs.version }}

runs:
  using: composite
  steps:
    - name: Determine version
      id: determine
      shell: bash
      run: |
        VERSION=""
        INPUT_VERSION="${{ inputs.version }}"
        INPUT_BRANCH_NAME="${{ inputs.branch-name }}"
        INPUT_DATE_FORMAT="${{ inputs.date-format }}"

        # Priority 1: Explicit version input
        if [ -n "${INPUT_VERSION}" ]; then
          VERSION="${INPUT_VERSION}"
          echo "Using explicit version: $VERSION"

        # Priority 2: Extract from branch name (for release/* branches)
        elif [ -n "${INPUT_BRANCH_NAME}" ]; then
          if [[ "${INPUT_BRANCH_NAME}" == release/* ]]; then
            VERSION="${INPUT_BRANCH_NAME#release/}"
            echo "Extracted version from branch: $VERSION"
          fi
        fi

        # Priority 3: Generate from date
        if [ -z "$VERSION" ]; then
          VERSION="$(date +"${INPUT_DATE_FORMAT}")"
          echo "Generated version from date: $VERSION"
        fi

        echo "version=$VERSION" >> $GITHUB_OUTPUT