name: Deploy NixOS Configurations

on:
  push:
    branches:
      - deploy
  workflow_dispatch:

permissions:
  contents: write

jobs:
  deploy:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          ref: deploy

      - name: Install Nix
        uses: cachix/install-nix-action@v25

      - name: Configure Git
        run: |
          git config --global user.name "GitHub Actions Bot"
          git config --global user.email "actions@github.com"

      - name: Process Configurations
        run: |
          # Create deploy-comin-eval branch if it doesn't exist
          if ! git show-ref --verify --quiet refs/remotes/origin/deploy-comin-eval; then
            git checkout -b deploy-comin-eval
          else
            git checkout deploy-comin-eval || git checkout -b deploy-comin-eval origin/deploy-comin-eval
          fi
          
          # Create eval directory if it doesn't exist
          mkdir -p eval
          
          # Get all hosts and create their json files
          hosts=$(nix flake show --json | jq -r '.nixosConfigurations | keys[]')
          
          for host in $hosts; do
            # Generate json file for the host in eval directory
            nix show-derivation -L ".#nixosConfigurations.$host.config.system.build.toplevel" > "eval/$host.json"
          done
          
          # Add all json files and commit
          git add eval/
          git commit -m "Update deployment configurations for all hosts"
          
          # Push directly to deploy-comin-eval
          git push origin deploy-comin-eval