name: Lint pull request

on:
  pull_request_target:
    types:
      - opened
      - edited
      - synchronize

permissions:
  contents: read

jobs:
  main:
    name: Validate PR title
    runs-on: ubuntu-latest

    permissions:
      pull-requests: write

    steps:
      - uses: amannn/action-semantic-pull-request@48f256284bd46cdaab1048c3721360e808335d50 # v6.1.1
        id: lint_pr_title
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - uses: marocchino/sticky-pull-request-comment@0ea0beb66eb9baf113663a64ec522f60e49231c0 # v3.0.4
        if: always() && steps.lint_pr_title.outputs.error_message != null
        with:
          header: pr-title-lint-error
          message: |
            Hey there and thank you for opening this pull request! 👋🏼

            We require pull request titles to follow the [Conventional Commits specification](https://www.conventionalcommits.org/en/v1.0.0/) and it looks like your proposed title needs to be adjusted.

            Details:

            ```
            ${{ steps.lint_pr_title.outputs.error_message }}
            ```

      - uses: marocchino/sticky-pull-request-comment@0ea0beb66eb9baf113663a64ec522f60e49231c0 # v3.0.4
        if: steps.lint_pr_title.outputs.error_message == null
        with:
          header: pr-title-lint-error
          delete: true
