name: Release PR

on:
  push:
    branches: [main]

permissions:
  contents: read

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: false

jobs:
  version:
    name: Maintain Version Packages PR
    runs-on: ubuntu-24.04
    timeout-minutes: 10
    permissions:
      contents: write
      pull-requests: write
      actions: write
    steps:
      - uses: actions/checkout@v7
      - uses: pnpm/action-setup@v6
      - uses: actions/setup-node@v7
        with:
          node-version: '24'
          cache: pnpm
      - name: Install dependencies
        run: pnpm install --frozen-lockfile
      - name: Create or update the version PR
        id: changesets
        uses: changesets/action@v2
        with:
          version-script: pnpm version:release
          pr-title: Version Packages
          commit-message: Version Packages
          create-github-releases: false
          push-git-tags: false
      - name: Describe the release and run its CI checks
        if: steps.changesets.outputs.pr-number != ''
        uses: actions/github-script@v8
        env:
          RELEASE_PR_NUMBER: ${{ steps.changesets.outputs.pr-number }}
        with:
          script: |
            const pull_number = Number(process.env.RELEASE_PR_NUMBER);
            const { data: pull } = await github.rest.pulls.get({ ...context.repo, pull_number });
            const { data: file } = await github.rest.repos.getContent({
              ...context.repo,
              path: 'package.json',
              ref: pull.head.sha,
            });
            const { version } = JSON.parse(Buffer.from(file.content, 'base64').toString('utf8'));
            await github.rest.pulls.update({
              ...context.repo,
              pull_number,
              body: [
                '## Problem',
                '',
                'Merged changes are waiting for a coordinated app release.',
                '',
                '## Solution',
                '',
                `Release Luma **${version}** with the accumulated Changesets changelog.`,
                '',
                'Synchronize package.json, appinfo.json, the root Cargo.toml, Cargo.lock and the README IPK examples.',
                'Merging this PR into main publishes the verified IPK and Homebrew feed after CI passes.',
              ].join('\n'),
            });
            // GITHUB_TOKEN-created PRs do not trigger pull_request workflows.
            // workflow_dispatch is explicitly allowed and checks the version branch's head commit.
            await github.rest.actions.createWorkflowDispatch({
              ...context.repo,
              workflow_id: 'ci.yml',
              ref: pull.head.ref,
            });