on:
  schedule:
    - cron: '0 0 * * 1'

jobs:
  update-flake:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: https://github.com/cachix/install-nix-action@v26
        with:
          nix_path: nixpkgs=channel:nixos-unstable
          github_access_token: '${{ secrets.GH_TOKEN }}'
      - name: Create branch
        run: git switch -c update/flake-lock
      - name: Update flake.lock
        run: nix flake update --commit-lock-file
        env:
          GIT_AUTHOR_NAME: kitchen-ci
          GIT_AUTHOR_EMAIL: do-not-reply@buffets.kitchen
          GIT_COMMITTER_NAME: kitchen-ci
          GIT_COMMITTER_EMAIL: do-not-reply@buffets.kitchen
      - name: Push to repo
        run: git push -f origin update/flake-lock
      - name: Create PR
        run: >
          curl -X POST "${{ env.GITHUB_API_URL }}/repos/${{ env.GITHUB_REPOSITORY }}/pulls"
          --fail
          -H "Content-Type: application/json"
          -H "Authorization: token ${{ secrets.BOT_TOKEN }}"
          -d '{
               "title": "build(flake): update inputs",
               "body": "",
               "base": "main",
               "head": "update/flake-lock",
               "assignee": "chef"
              }' || echo PR already open