name: "Reopen issue on command"
on:
  issue_comment:
    types: [created]

permissions:
  contents: read

jobs:
  reopen:
    # Only run on issues (not PRs), on closed issues, when the comment is exactly "/reopen",
    # and only if the commenter is the issue author or a member/collaborator/owner/contributor.
    if: >
      !github.event.issue.pull_request &&
      github.event.issue.state == 'closed' &&
      startsWith(github.event.comment.body, '/reopen') &&
      (
        github.event.comment.user.login == github.event.issue.user.login ||
        contains(fromJSON('["OWNER", "MEMBER", "COLLABORATOR", "CONTRIBUTOR"]'), github.event.comment.author_association)
      )
    permissions:
      issues: write # required to reopen the issue
    runs-on: ubuntu-latest
    steps:
      - name: Reopen issue
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          REPO: ${{ github.repository }}
          ISSUE_NUMBER: ${{ github.event.issue.number }}
          COMMENT_BODY: ${{ github.event.comment.body }}
        run: |
          # Require the comment to be exactly "/reopen" (ignoring trailing whitespace)
          if [[ ! "$COMMENT_BODY" =~ ^/reopen[[:space:]]*$ ]]; then
            echo "Comment is not an exact /reopen command; skipping."
            exit 0
          fi
          gh issue reopen "$ISSUE_NUMBER" --repo "$REPO"