name: Release notes

on:
  pull_request:
  push:
    branches:
      - release
  workflow_run: # zizmor: ignore[dangerous-triggers]
    workflows: ['Cut release branch']
    types:
      - completed
    branches: [master]

permissions: {}

concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
  cancel-in-progress: true

jobs:
  check-release-notes:
    if: >-
      github.event_name == 'pull_request'
      && github.head_ref != 'release'
      && startsWith(github.head_ref, 'release-notes/') == false
      && github.event.pull_request.user.login != 'dependabot[bot]'
    runs-on: depot-ubuntu-latest
    permissions:
      contents: read
    steps:
      - name: Check if triggered by bot
        id: bot-check
        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
        with:
          script: |
            const { data: commit } = await github.rest.git.getCommit({
              owner: context.repo.owner,
              repo: context.repo.repo,
              commit_sha: context.payload.pull_request.head.sha,
            });
            const skip = commit.author.name === 'github-actions[bot]'
              && commit.message.startsWith('Generate release notes');
            console.log(`Head commit by "${commit.author.name}": ${commit.message.split('\n')[0]}`);
            console.log(`Skip: ${skip}`);
            core.setOutput('skip', String(skip));

      - name: Checkout
        if: steps.bot-check.outputs.skip != 'true'
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
        with:
          fetch-depth: 0
          persist-credentials: false

      - name: Get changed files
        if: steps.bot-check.outputs.skip != 'true'
        id: changed-files
        run: |
          git fetch origin ${GITHUB_BASE_REF}
          CHANGED_FILES=$(git diff --name-only origin/${GITHUB_BASE_REF}...HEAD)
          NON_DOCS_FILES=$(echo "$CHANGED_FILES" | grep -v -e "^packages/docs/" -e "^\.github/actions/docs-spelling/" || true)

          if [ -z "$NON_DOCS_FILES" ] && [ -n "$CHANGED_FILES" ]; then
            echo "only_docs=true" >> $GITHUB_OUTPUT
            echo "only documentation files changed, skipping release notes check"
          else
            echo "only_docs=false" >> $GITHUB_OUTPUT
          fi

      - name: Check release notes
        if: >-
          steps.bot-check.outputs.skip != 'true'
          && steps.changed-files.outputs.only_docs != 'true'
        uses: ./.github/actions/release-notes/check

  generate-release-notes:
    if: >-
      github.event_name == 'push'
      || (github.event_name == 'workflow_run'
          && github.event.workflow_run.conclusion == 'success')
    runs-on: depot-ubuntu-latest
    environment: release
    permissions:
      contents: write
      pull-requests: read
    steps:
      - name: Resolve version
        id: version
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          version=$(gh api "repos/${GITHUB_REPOSITORY}/contents/packages/desktop-client/package.json?ref=release" --jq '.content' | base64 -d | jq -r .version)
          echo "version=$version" >> "$GITHUB_OUTPUT"
          echo "notes_branch=release-notes/$version" >> "$GITHUB_OUTPUT"

      - name: Checkout release-notes branch
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
        with:
          ref: ${{ steps.version.outputs.notes_branch }}
          fetch-depth: 0
          persist-credentials: true

      - name: Generate release notes
        uses: ./.github/actions/release-notes/generate
        with:
          release-branch: release
          notes-branch: ${{ steps.version.outputs.notes_branch }}
          version: ${{ steps.version.outputs.version }}