on-pr_publish_comment.yml

name: Post Comment to PR

on:
  workflow_run:
    workflows: ["On PR action"]
    types:
      - completed

jobs:
  create_comment_with_memory_usage:
    runs-on: ubuntu-latest
    permissions:
      issues: write
      pull-requests: write
      contents: read
      checks: write

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Get artifacts from PR
        uses: dawidd6/action-download-artifact@v3
        with:
          run_id: ${{github.event.workflow_run.id}}
          path: current

      - name: Get artifacts from PR base
        uses: dawidd6/action-download-artifact@v3
        with:
          commit: ${{github.event.workflow_run.event.pull_request.base.sha}}
          workflow: on-commit.yml
          path: old

      - name: Unpack PR number
        id: get-pr-number
        run: |
          pr_number="$(cat current/PR_number/PR_number)"
          echo "pr_number=$pr_number" >> $GITHUB_OUTPUT

      - name: Generage memory diff
        run: |
          shopt -s extglob
          pr_reports=$(ls current/sample-artifacts-meta/subsets/*/twister.json)
          python3 scripts/ci/combine_twister_reports.py $pr_reports new.json

          base_reports=$(ls old/sample-artifacts-meta/subsets/*/twister.json)
          python3 scripts/ci/combine_twister_reports.py $base_reports old.json

          python3 scripts/ci/compare_size_reports.py -o old.json -n new.json --md_output --show_only_diff > memory_usage.md

      - name: Find Comment
        uses: peter-evans/find-comment@v2
        id: fc
        with:
          issue-number: ${{ steps.get-pr-number.outputs.pr_number }}
          comment-author: 'github-actions[bot]'
          body-includes: "| Sample | | diff | used | total |"

      - name: Create or update comment
        uses: peter-evans/create-or-update-comment@v3
        with:
          comment-id: ${{ steps.fc.outputs.comment-id }}
          issue-number: ${{ steps.get-pr-number.outputs.pr_number }}
          body-path: memory_usage.md
          edit-mode: replace