# `/claim` and `/unclaim` on issues (CONTRIBUTING.md, "Sending a change"), and a daily sweep that
# frees claims nobody is working on. A pull request that references an issue (`<summary> (#N)`,
# `Fixes #N`) claims it too. The logic is in scripts/claim/claim.js (tested in ci.yml).
name: Claim

on:
  issue_comment:
    types: [created]
  # pull_request_target so PRs from forks can label and assign. It runs the base branch's
  # scripts/claim and only reads the PR's title, body and author; the PR's code is never checked out.
  pull_request_target:
    types: [opened, reopened]
  schedule:
    - cron: '17 5 * * *'
  workflow_dispatch:

permissions:
  contents: read # to check out scripts/claim
  issues: write
  pull-requests: read

# One run at a time per issue, so two simultaneous /claim comments can't both win.
concurrency:
  group: claim-${{ github.event.issue.number || github.event.pull_request.number || 'sweep' }}
  cancel-in-progress: false

jobs:
  claim:
    name: Claim bot
    runs-on: ubuntu-24.04
    timeout-minutes: 10
    if: >-
      github.event_name != 'issue_comment' ||
      (!github.event.issue.pull_request && github.event.comment.user.type != 'Bot' &&
      (startsWith(github.event.comment.body, '/claim') || startsWith(github.event.comment.body, '/unclaim')))
    steps:
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          sparse-checkout: scripts/claim
      - uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
        with:
          script: |
            const claim = require('./scripts/claim/claim.js');
            if (context.eventName === 'issue_comment') {
              await claim.handleComment({ github, context });
            } else if (context.eventName === 'pull_request_target') {
              const claimed = await claim.handlePull({ github, context });
              core.info(`Claimed: ${claimed.join(', ') || 'none'}`);
            } else {
              const released = await claim.sweep({ github, context });
              core.info(`Released: ${released.join(', ') || 'none'}`);
            }