name: Extract Release Notes
description: Extract release notes from CHANGELOG.md for a given version

inputs:
  version:
    description: Version to extract notes for
    required: true

outputs:
  notes:
    description: Extracted release notes
    value: ${{ steps.extract.outputs.notes }}

runs:
  using: composite
  steps:
    - id: extract
      shell: bash
      run: |
        VERSION="${{ inputs.version }}"
        MAJOR="${VERSION%%.*}"
        # Try exact version match first, fall back to major version match
        NOTES=$(awk "/^## ${VERSION}( |$)/{found=1; next} /^## /{if(found) exit} found{print}" CHANGELOG.md)
        if [ -z "$NOTES" ]; then
          NOTES=$(awk "/^## ${MAJOR}( |$)/{found=1; next} /^## /{if(found) exit} found{print}" CHANGELOG.md)
        fi
        {
          echo "notes<<EOF"
          echo "$NOTES"
          echo "EOF"
        } >> $GITHUB_OUTPUT