yew/.github/workflows/post-size-cmp.yml

---
name: Post Comment for Size Comparison

on:
  workflow_run:
    workflows: ["Size Comparison"]
    types:
      - completed

jobs:
  post-size-cmp:
    name: Post Comment on Pull Request
    runs-on: ubuntu-latest

    steps:
      - name: Download Repository
        uses: actions/checkout@v4

      - if: github.event.workflow_run.event == 'pull_request'
        name: Download Artifact (master)
        uses: Legit-Labs/action-download-artifact@v2
        with:
          github_token: "${{ secrets.GITHUB_TOKEN }}"
          workflow: size-cmp.yml
          run_id: ${{ github.event.workflow_run.id }}
          name: size-cmp-master-info
          path: "size-cmp-master-info/"

      - if: github.event.workflow_run.event == 'pull_request'
        name: Download Artifact (PR)
        uses: Legit-Labs/action-download-artifact@v2
        with:
          github_token: "${{ secrets.GITHUB_TOKEN }}"
          workflow: size-cmp.yml
          run_id: ${{ github.event.workflow_run.id }}
          name: size-cmp-pr-info
          path: "size-cmp-pr-info/"

      - name: Make pull request comment
        run: python3 ci/make_example_size_cmt.py

      - name: Post Comment
        uses: actions/github-script@v6
        with:
          script: |
            const commentInfo = {
              ...context.repo,
              issue_number: ${{ env.PR_NUMBER }},
            };

            const comment = {
              ...commentInfo,
              body: JSON.parse(process.env.YEW_EXAMPLE_SIZES),
            };

            function isCommentByBot(comment) {
              return comment.user.type === "Bot" && comment.body.includes("### Size Comparison");
            }

            let commentId = null;
            const comments = (await github.rest.issues.listComments(commentInfo)).data;
            for (let i = comments.length; i--; ) {
              const c = comments[i];
              if (isCommentByBot(c)) {
                commentId = c.id;
                break;
              }
            }

            if (commentId) {
              try {
                await github.rest.issues.updateComment({
                  ...context.repo,
                  comment_id: commentId,
                  body: comment.body,
                });
              } catch (e) {
                commentId = null;
              }
            }

            if (!commentId) {
              await github.rest.issues.createComment(comment);
            }