name: Cross version test runner
on:
  issue_comment:
    types: [created]

defaults:
  run:
    shell: bash

permissions: {}

jobs:
  run:
    runs-on: ubuntu-slim
    timeout-minutes: 10
    if: >
      github.event.issue.pull_request &&
      startsWith(github.event.comment.body, '/cvt') &&
      contains(fromJson('["OWNER", "MEMBER", "COLLABORATOR"]'), github.event.issue.author_association) &&
      contains(fromJson('["OWNER", "MEMBER", "COLLABORATOR"]'), github.event.comment.author_association)
    permissions:
      pull-requests: write
      actions: write
    steps:
      - name: Dispatch cross-version tests
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          GH_REPO: ${{ github.repository }}
          PR_NUMBER: ${{ github.event.issue.number }}
          COMMENT_BODY: ${{ github.event.comment.body }}
        run: |
          flavors=$(printf '%s' "$COMMENT_BODY" | sed -nE '1 s|^/cvt[[:space:]]+(.+)$|\1|p')
          if [ -z "$flavors" ]; then
            echo "No flavors specified; skipping."
            exit 0
          fi

          pr_json=$(gh api "repos/$GH_REPO/pulls/$PR_NUMBER")
          base_ref=$(jq -r .base.ref <<< "$pr_json")
          merge_sha=$(jq -r .merge_commit_sha <<< "$pr_json")

          payload=$(jq -n \
            --arg ref "$base_ref" \
            --arg merge_sha "$merge_sha" \
            --arg flavors "$flavors" \
            --arg repo_full "$GH_REPO" \
            '{ref: $ref, return_run_details: true, inputs: {repository: $repo_full, ref: $merge_sha, flavors: $flavors}}')

          run_url=$(printf '%s' "$payload" | gh api -X POST \
            "repos/$GH_REPO/actions/workflows/cross-version-tests.yml/dispatches" \
            --input - --jq .html_url)

          gh pr comment "$PR_NUMBER" --body "Cross-version test run started: $run_url"