# Adapted from create-t3-app.
name: Write Prerelease comment

on:
  workflow_run:
    workflows: ["Release"]
    types:
      - completed

jobs:
  comment:
    if: |
      github.repository_owner == 'shadcn-ui' &&
      github.event.workflow_run.event == 'pull_request' &&
      github.event.workflow_run.conclusion == 'success'
    runs-on: ubuntu-latest
    name: Write comment to the PR
    steps:
      - name: "Comment on PR"
        uses: actions/github-script@v7
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            const allArtifacts = await github.rest.actions.listWorkflowRunArtifacts({
              owner: context.repo.owner,
              repo: context.repo.repo,
              run_id: context.payload.workflow_run.id,
            });

            for (const artifact of allArtifacts.data.artifacts) {
              // Extract the PR number and package version from the artifact name
              const match = /^npm-package-shadcn@(.*?)-pr-(\d+)/.exec(artifact.name);

              if (match) {
                const version = match[1];
                const channel = version.includes("-rc.") ? "rc" : "beta";
                require("fs").appendFileSync(
                  process.env.GITHUB_ENV,
                  `\nPRERELEASE_PACKAGE_VERSION=${version}` +
                  `\nPRERELEASE_CHANNEL=${channel}` +
                  `\nPRERELEASE_LABEL=release: ${channel}` +
                  `\nWORKFLOW_RUN_PR=${match[2]}` +
                  `\nWORKFLOW_RUN_ID=${context.payload.workflow_run.id}`
                );
                break;
              }
            }

      - name: "Comment on PR with Link"
        uses: marocchino/sticky-pull-request-comment@v2
        with:
          number: ${{ env.WORKFLOW_RUN_PR }}
          message: |
            A new ${{ env.PRERELEASE_CHANNEL }} prerelease is available for testing:

            ```sh
            pnpm dlx shadcn@${{ env.PRERELEASE_PACKAGE_VERSION }}
            ```

            View on npm: https://www.npmjs.com/package/shadcn/v/${{ env.PRERELEASE_PACKAGE_VERSION }}

      - name: "Remove the prerelease label once published"
        uses: actions/github-script@v7
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            try {
              await github.rest.issues.removeLabel({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: '${{ env.WORKFLOW_RUN_PR }}',
                name: '${{ env.PRERELEASE_LABEL }}',
              });
            } catch (error) {
              if (error.status !== 404) {
                throw error;
              }

              core.info("The prerelease label was already removed.");
            }