name: Build All Color Schemes

on:
  push:
    paths:
      - 'config/schemes.nix'
      - 'config/scheme-utils.nix'
  workflow_dispatch:

jobs:
  build-schemes:
    runs-on: nixos
    env:
      HOSTNAME: server
    
    steps:
    - uses: actions/checkout@v4
    
    - name: Setup Nix
      uses: cachix/install-nix-action@v23
      with:
        nix_path: nixpkgs=channel:nixpkgs-unstable
    
    - name: Get available schemes
      id: schemes
      run: |
        SCHEMES=$(nix eval --raw --expr '
          let
            pkgs = import <nixpkgs> {};
            inputs = {};
            utils = import ./scripts/scheme-utils.nix { inherit pkgs inputs; };
          in
          builtins.concatStringsSep " " utils.availableSchemes
        ')
        echo "schemes=$SCHEMES" >> $GITHUB_OUTPUT
        echo "Available schemes: $SCHEMES"
    
    - name: Build all schemes
      run: |
        for scheme in ${{ steps.schemes.outputs.schemes }}; do
          echo "Building scheme: $scheme"
          nix build .#nixosConfigurations.${HOSTNAME}.config.system.build.toplevel \
            --override-input stylix-scheme $scheme \
            --out-link ./result-$scheme &
        done
        wait
        echo "All schemes built successfully!"
    
    - name: Configure Attic cache
      run: |
        # Configure attic client to use your cache server
        attic login servidos https://cache.servidos.lat ${{ secrets.ATTIC_TOKEN }}
    
    - name: Push schemes to cache
      run: |
        echo "Pushing all scheme builds to cache..."
        # Push all built derivations to cache
        if ls result* 1> /dev/null 2>&1; then
          attic push servidos:nixos result*
        fi
        
        # Push each scheme build individually for better cache granularity
        for scheme in ${{ steps.schemes.outputs.schemes }}; do
          echo "Pushing scheme $scheme to cache..."
          nix build .#nixosConfigurations.${HOSTNAME}.config.system.build.toplevel \
            --override-input stylix-scheme $scheme \
            --print-out-paths | attic push servidos:nixos --stdin
        done
        echo "All schemes pushed to cache successfully!"
    
    - name: Upload build artifacts
      uses: actions/upload-artifact@v4
      with:
        name: nixos-configurations
        path: ./result-*
        retention-days: 7
    
    - name: Summary
      run: |
        echo "✅ Color scheme builds completed successfully!"
        echo "- Built all ${{ steps.schemes.outputs.schemes }} schemes"
        echo "- Pushed all builds to Atticd cache"
        echo "- Uploaded artifacts for backup"