name: Release Alpha

on:
  issue_comment:
    types:
      - created

concurrency:
  group: release-alpha-pr-${{ github.event.issue.number }}
  cancel-in-progress: true

permissions:
  contents: read
  pull-requests: write

jobs:
  publish-alpha:
    name: Publish alpha to npm
    if: |
      github.event.issue.pull_request &&
      (
        github.event.comment.body == 'release-alpha' ||
        github.event.comment.body == '/release-alpha'
      ) &&
      (
        github.event.comment.author_association == 'OWNER' ||
        github.event.comment.author_association == 'MEMBER' ||
        github.event.comment.author_association == 'COLLABORATOR'
      )
    runs-on: ubuntu-latest
    steps:
      - name: Get PR details
        id: pr
        uses: actions/github-script@v9
        with:
          script: |
            const { data: pr } = await github.rest.pulls.get({
              owner: context.repo.owner,
              repo: context.repo.repo,
              pull_number: context.issue.number,
            });

            if (pr.head.repo.full_name !== `${context.repo.owner}/${context.repo.repo}`) {
              core.setFailed("Alpha releases from fork PRs are not supported.");
              return;
            }

            core.setOutput("sha", pr.head.sha);
            core.setOutput("number", String(pr.number));

      - name: Checkout
        uses: actions/checkout@v7
        with:
          ref: ${{ steps.pr.outputs.sha }}

      - name: Setup Node.js
        uses: actions/setup-node@v6
        with:
          node-version: 24
          cache: npm
          registry-url: https://registry.npmjs.org

      - name: Install dependencies
        run: npm ci

      - name: Test
        run: npm test

      - name: Build
        run: npm run build

      - name: Resolve alpha version
        id: version
        run: |
          BASE_VERSION=$(node -p "require('./package.json').version")
          ALPHA_VERSION="${BASE_VERSION}-alpha.pr${{ steps.pr.outputs.number }}.${GITHUB_RUN_NUMBER}"
          echo "version=${ALPHA_VERSION}" >> "$GITHUB_OUTPUT"

      - name: Publish alpha
        run: |
          npm version "${{ steps.version.outputs.version }}" --no-git-tag-version
          npm publish --tag alpha --access public
        env:
          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}

      - name: Add install instructions to job summary
        run: |
          {
            echo "## Alpha release published"
            echo ""
            echo "Install this PR build:"
            echo ""
            echo '```bash'
            echo "npm install @thiagopi/ts-utils-kit@${{ steps.version.outputs.version }}"
            echo '```'
            echo ""
            echo "Or install the latest alpha tag:"
            echo ""
            echo '```bash'
            echo "npm install @thiagopi/ts-utils-kit@alpha"
            echo '```'
          } >> "$GITHUB_STEP_SUMMARY"

      - name: Comment alpha install instructions on PR
        uses: peter-evans/create-or-update-comment@v5
        with:
          issue-number: ${{ steps.pr.outputs.number }}
          edit-mode: replace
          commit-sha: ${{ steps.pr.outputs.sha }}
          body: |
            ## Alpha release published

            Triggered by `@${{ github.event.comment.user.login }}` with \`release-alpha\`.

            Install this PR build:

            ```bash
            npm install @thiagopi/ts-utils-kit@${{ steps.version.outputs.version }}
            ```

            Or install the latest alpha tag:

            ```bash
            npm install @thiagopi/ts-utils-kit@alpha
            ```