name: Build VulkanEngine

on:
  push:
    branches:
      - vkguide
  pull_request:
  workflow_dispatch:
  schedule:
    - cron: "@weekly"

jobs:
  build:
    runs-on: ubuntu-latest
    container: git.alexdelcamp.fr/alexandre_1a/flake-actions:latest


    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          submodules: recursive
          fetch-depth: 0


      - name: Configure
        run: |
          nix develop --command cmake -S . -B build \
            -G Ninja \
            -DCMAKE_BUILD_TYPE=Release

      - name: Debug Nix linker environment
        run: |
          nix develop --command bash -c '
            echo "CC=$CC"
            echo "CXX=$CXX"
            echo "LD=$LD"
            echo
            echo "NIX_LDFLAGS:"
            printf "%s\n" "$NIX_LDFLAGS"
            echo
            echo "NIX_CFLAGS_LINK:"
            printf "%s\n" "$NIX_CFLAGS_LINK"
          '

      - name: Build
        run: |
          nix develop --command cmake --build build \
            --parallel 2

      - name: Install ELF inspection tools
        run: |
          nix profile install \
            nixpkgs#binutils \
            nixpkgs#file \
            nixpkgs#gnugrep

      - name: Check binaries
        run: |
          for bin in build/server/server build/engine/engine; do
            echo "========== $bin =========="

            file "$bin"

            echo "--- INTERPRETER ---"
            readelf -l "$bin" | grep 'Requesting program interpreter' || true

            echo "--- DYNAMIC SECTION ---"
            readelf -d "$bin" | grep -E 'RPATH|RUNPATH|NEEDED' || true

            echo "--- NIX STORE REFERENCES ---"
            strings "$bin" | grep '/nix/store' || true
          done

      - name: Upload build
        uses: actions/upload-artifact@v4
        with:
          name: VulkanEngine-linux-x86_64
          path: build/

      - name: Verify Nix independence
        run: |
          mkdir -p /tmp/vulkan-test
          cp build/server/server /tmp/vulkan-test/
          cp build/engine/engine /tmp/vulkan-test/

          echo "=== Nix references ==="
          if strings /tmp/vulkan-test/server | grep -q '/nix/store'; then
            echo "ERROR: server contains /nix/store reference"
            exit 1
          fi

          if strings /tmp/vulkan-test/engine | grep -q '/nix/store'; then
            echo "ERROR: engine contains /nix/store reference"
            exit 1
          fi

          echo "OK: no /nix/store references"

      - name: Notify routine
        if: always()
        run: |
          curl \
            -H "Title: [Routine] VulkanEngine build" \
            -d "Build finished (status: ${{ job.status }})" \
            https://ntfy.alexdelcamp.fr/FlakeBuild