name: Fix label

on:
  schedule:
    - cron: '45 * * * *'
  workflow_dispatch:

permissions: {}

concurrency:
  group: fix-label
  cancel-in-progress: true

jobs:
  label:
    runs-on: ubuntu-latest
    permissions:
      issues: read
      pull-requests: write
    env:
      GH_TOKEN: ${{ github.token }}
      LABEL: fix error
    steps:
      - run: |
          gh api graphql --paginate -f owner="${GITHUB_REPOSITORY%/*}" -f name="${GITHUB_REPOSITORY#*/}" -f query='
            query($owner: String!, $name: String!, $endCursor: String) {
              repository(owner: $owner, name: $name) {
                pullRequests(states: OPEN, first: 100, after: $endCursor) {
                  pageInfo { hasNextPage endCursor }
                  nodes { number closingIssuesReferences { totalCount } labels(first: 100) { nodes { name } } }
                }
              }
            }' --jq '.data.repository.pullRequests.nodes[]
              | (.closingIssuesReferences.totalCount > 0) as $fix
              | ([.labels.nodes[].name] | index(env.LABEL) != null) as $has
              | if $fix and ($has | not) then "add \(.number)" elif $has and ($fix | not) then "remove \(.number)" else empty end' > "$RUNNER_TEMP/fix-todo"
          label=$(jq -rn 'env.LABEL | @uri')
          while read -r action number; do
            if [ "$action" = add ]; then
              gh api "repos/$GITHUB_REPOSITORY/issues/$number/labels" -f "labels[]=$LABEL" --silent
            else
              gh api -X DELETE "repos/$GITHUB_REPOSITORY/issues/$number/labels/$label" --silent
            fi
          done < "$RUNNER_TEMP/fix-todo"