name: build and cache packages
on:
  workflow_dispatch:
    inputs:
      package:
        description: "package to build"
        required: false
        type: string

env:
  TERM: ansi
  AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
  AWS_SECRET_ACCESS_KEY: ${{ secrets. AWS_SECRET_ACCESS_KEY }}
  AWS_DEFAULT_REGION: us-east-1
  AWS_ENDPOINT_URL: https://s3.cy7.sh

jobs:
  build-packages:
    strategy:
      fail-fast: false
      matrix:
        package:
          - ${{ inputs.package }}
        os:
          - ubuntu-latest
          - ubuntu-24.04-arm
          # - macos-latest
          # - macos-13
    runs-on: ${{ matrix.os }}

    steps:
      - name: setup binary cache key
        run: echo -n "${{ secrets.NIX_CACHE_SECRET_KEY }}" | xxd -p -r > ${{ runner.temp }}/cache-priv-key.pem

      - name: Sync repository
        uses: actions/checkout@v4
        with:
          persist-credentials: false

      - name: post-build-hook
        run: |
          sudo mkdir -p /etc/nix
          sudo cp ci/upload-to-cache.sh /etc/nix/
          sudo chmod +x /etc/nix/upload-to-cache.sh

      - name: setup s3 credentials
        run: |
          sudo mkdir /root/.aws
          echo "[default]" |sudo tee /root/.aws/config |sudo tee /root/.aws/credentials
          echo "aws_access_key_id=$AWS_ACCESS_KEY_ID" |sudo tee -a /root/.aws/credentials
          echo "aws_secret_access_key=$AWS_SECRET_ACCESS_KEY" |sudo tee -a /root/.aws/credentials
          echo "endpoint_url=$AWS_ENDPOINT_URL" |sudo tee -a /root/.aws/config

      - name: Install Nix
        uses: cachix/install-nix-action@v30
        with:
          enable_kvm: true
          extra_nix_config: |
            show-trace = true
            experimental-features = nix-command flakes
            accept-flake-config = true
            system-features = nixos-test benchmark big-parallel kvm
            secret-key-files = ${{ runner.temp }}/cache-priv-key.pem
            extra-substituters = https://nixcache.cy7.sh
            extra-trusted-public-keys = nixcache.cy7.sh:DN3d1dt0wnXfTH03oVmTee4KgmdNdB0NY3SuzA8Fwx8=
            post-build-hook = /etc/nix/upload-to-cache.sh

      - run: nix build -L ${{ matrix.package }}

      - name: prepare tarball to upload
        run: nix run github:nixos/nixpkgs#gnutar hcvf result.tar result

      - name: upload result
        uses: actions/upload-artifact@v4
        with:
          name: ${{ matrix.os }}
          path: result.tar
          if-no-files-found: error