name: Update flake.lock

on:
  workflow_dispatch:

jobs:
  update_flake_lock:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Install Nix
        uses: DeterminateSystems/nix-installer-action@v14

      - name: Set git config
        run: |
          git config --global user.name "ukubot"
          git config --global user.email "bot@uku.moe"

      - name: Update lockfile
        run: |
          export BRANCH="update-lock-$(date -I)"
          git checkout -b "$BRANCH"
          nix flake update --commit-lock-file
          git push origin "$BRANCH"

      - name: Create Pull Request
        run: |
          echo EXPLODE