name: Links

on:
  repository_dispatch:
  workflow_dispatch:
  schedule:
  # Everyday at 9:00 AM.
  - cron: "0 9 * * *"

permissions:
  contents: read

jobs:
  check-links:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      issues: write # required for creating issues from link checker results
    steps:
    - name: Checkout Repo
      uses: actions/checkout@v5


    - name: Restore lychee cache
      uses: actions/cache@v4
      with:
        path: .lycheecache
        key: cache-lychee-${{ github.sha }}
        restore-keys: cache-lychee-

    - name: Link Checker
      id: lychee
      uses: lycheeverse/lychee-action@v2.6.1
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      with:
          args: --max-concurrency 1 --cache --max-cache-age 1d --cache-exclude-status 300..=599 .

    - name: Create Issue From File
      if: steps.lychee.outputs.exit_code != 0
      uses: peter-evans/create-issue-from-file@v5
      with:
        title: Link Checker Report
        content-filepath: ./lychee/out.md
        labels: report, bot-generated
