name: CI

on:
  pull_request:
    branches: [master]
  push:
    branches: [master]
  workflow_dispatch:

jobs:
  build-test-release:
    runs-on: arch-latest
    env:
      # x86-64-v2 = SSE4.2 baseline; runs on the CI SBC (Intel N5105 / Tremont,
      # no AVX) and on essentially every x86_64 CPU since ~2011. The bootstrap
      # MUST stay v2 — anything higher would emit instructions the SBC can't
      # execute and the bootstrap binary itself would crash before it could
      # rebuild for higher levels. v3/v4 variants are produced from this v2
      # bootstrap by re-running it with CRAFTER_BUILD_MARCH overridden.
      CRAFTER_BUILD_MARCH: x86-64-v2
      CRAFTER_BUILD_MTUNE: generic
    steps:
      - name: Install build dependencies
        run: |
          # The slim archlinux:latest image arrives without a populated
          # pacman keyring AND without a local pacman master key, so:
          #   1. --init  generates the local signing key (needed when pacman
          #      itself rewrites the keyring during package upgrades)
          #   2. --populate archlinux  imports the upstream master keys so
          #      currently-shipping signatures verify
          # After that we can refresh archlinux-keyring to pick up keys for
          # packagers added after the image's snapshot, then -Syu the rest.
          pacman-key --init
          pacman-key --populate archlinux
          pacman -Sy --noconfirm --needed archlinux-keyring
          pacman -Syu --noconfirm --needed \
            base-devel git zip tar jq \
            clang lld libc++ cmake \
            mingw-w64-gcc \
            wasi-libc wasi-libc++ wasi-libc++abi wasi-compiler-rt \
            nodejs
          # The container runs as root and the workspace may be owned by a
          # different uid; tell git not to refuse operations on it.
          git config --global --add safe.directory '*'

      - name: Checkout
        uses: actions/checkout@v4
        with:
          # Persist the auth token so the 'Update rolling latest tag' step
          # below can push the tag back via the implicit GITHUB_TOKEN.
          persist-credentials: true

      - name: Cache glslang clone+build
        # Cache covers crafter-build's per-(target, march) external dep cache.
        # First run builds glslang up to 6 times (3 marches × 2 targets); the
        # cache makes subsequent runs reuse those builds.
        uses: actions/cache@v4
        with:
          path: |
            ~/.cache/crafter.build/external
          key: glslang-${{ runner.os }}-v2

      - name: Bootstrap (build.sh)
        run: ./build.sh

      - name: Run tests
        run: CRAFTER_BUILD_HOME=$PWD/share/crafter-build ./bin/crafter-build test

      - name: Build Linux x86-64-v2 (matches bootstrap)
        run: CRAFTER_BUILD_HOME=$PWD/share/crafter-build ./bin/crafter-build

      - name: Build Linux x86-64-v3
        run: CRAFTER_BUILD_HOME=$PWD/share/crafter-build CRAFTER_BUILD_MARCH=x86-64-v3 ./bin/crafter-build

      - name: Build Linux x86-64-v4
        run: CRAFTER_BUILD_HOME=$PWD/share/crafter-build CRAFTER_BUILD_MARCH=x86-64-v4 ./bin/crafter-build

      - name: Build Windows x86-64-v2 (mingw)
        run: CRAFTER_BUILD_HOME=$PWD/share/crafter-build ./bin/crafter-build --target=x86_64-w64-mingw32

      - name: Build Windows x86-64-v3 (mingw)
        run: CRAFTER_BUILD_HOME=$PWD/share/crafter-build CRAFTER_BUILD_MARCH=x86-64-v3 ./bin/crafter-build --target=x86_64-w64-mingw32

      - name: Build Windows x86-64-v4 (mingw)
        run: CRAFTER_BUILD_HOME=$PWD/share/crafter-build CRAFTER_BUILD_MARCH=x86-64-v4 ./bin/crafter-build --target=x86_64-w64-mingw32

      - name: Package artifacts
        run: |
          set -eux
          mkdir -p dist

          # 6 archives — 3 marches × 2 OSes. Each is self-contained: the
          # Linux launcher is statically linked; the Windows launcher has
          # crafter-build.dll + libcrafter-build.dll.a alongside the exe.
          for march in x86-64-v2 x86-64-v3 x86-64-v4; do
            # Short suffix (v2/v3/v4) for archive filenames; the upload-artifact
            # steps below reference these short names.
            short=${march##*-}

            # VariantId is "<name>-<target>-<march>-<mtune>-<hash>"; CI pins
            # mtune=generic so each (target, march) resolves to a single subdir
            # but the trailing hash isn't known to the workflow, hence the glob.
            stage_lin=$(mktemp -d)
            mkdir -p "$stage_lin/bin" "$stage_lin/lib"
            cp bin/crafter.build-exe-x86_64-pc-linux-gnu-$march-*/crafter-build "$stage_lin/bin/"
            cp bin/crafter.build-lib-x86_64-pc-linux-gnu-$march-*/libcrafter-build.a "$stage_lin/lib/"
            cp -r share "$stage_lin/"
            tar czf "dist/crafter-build-linux-x86_64-$short.tar.gz" -C "$stage_lin" .

            stage_win=$(mktemp -d)
            mkdir -p "$stage_win/bin"
            cp bin/crafter.build-exe-x86_64-w64-mingw32-$march-*/* "$stage_win/bin/"
            cp -r share "$stage_win/"
            (cd "$stage_win" && zip -r "$GITHUB_WORKSPACE/dist/crafter-build-windows-x86_64-$short.zip" .)
          done

          ls -la dist/

      # Upload each archive as its own workflow artifact (one upload per file)
      # so users browsing the PR / run page get six small, individually-named
      # downloads instead of one wrapper zip containing the lot.
      - name: Upload Linux v2 artifact
        uses: actions/upload-artifact@v3
        with: { name: crafter-build-linux-x86_64-v2, path: dist/crafter-build-linux-x86_64-v2.tar.gz, if-no-files-found: error }
      - name: Upload Linux v3 artifact
        uses: actions/upload-artifact@v3
        with: { name: crafter-build-linux-x86_64-v3, path: dist/crafter-build-linux-x86_64-v3.tar.gz, if-no-files-found: error }
      - name: Upload Linux v4 artifact
        uses: actions/upload-artifact@v3
        with: { name: crafter-build-linux-x86_64-v4, path: dist/crafter-build-linux-x86_64-v4.tar.gz, if-no-files-found: error }
      - name: Upload Windows v2 artifact
        uses: actions/upload-artifact@v3
        with: { name: crafter-build-windows-x86_64-v2, path: dist/crafter-build-windows-x86_64-v2.zip, if-no-files-found: error }
      - name: Upload Windows v3 artifact
        uses: actions/upload-artifact@v3
        with: { name: crafter-build-windows-x86_64-v3, path: dist/crafter-build-windows-x86_64-v3.zip, if-no-files-found: error }
      - name: Upload Windows v4 artifact
        uses: actions/upload-artifact@v3
        with: { name: crafter-build-windows-x86_64-v4, path: dist/crafter-build-windows-x86_64-v4.zip, if-no-files-found: error }

      - name: Update rolling 'latest' tag
        if: (github.event_name == 'push' || github.event_name == 'workflow_dispatch') && github.ref == 'refs/heads/master'
        run: |
          git config user.email "ci@catcrafts.net"
          git config user.name "Crafter Build CI"
          git tag -f latest
          git push origin latest --force

      - name: Publish rolling 'latest' release
        # forgejo-release uploads each file in release-dir as a separate
        # release asset, so the Releases page shows six individually
        # downloadable archives — pick the v-level matching your CPU.
        if: (github.event_name == 'push' || github.event_name == 'workflow_dispatch') && github.ref == 'refs/heads/master'
        uses: https://code.forgejo.org/actions/forgejo-release@v2
        with:
          direction: upload
          url: ${{ github.server_url }}
          repo: ${{ github.repository }}
          tag: latest
          title: Latest main build
          prerelease: true
          override: true
          release-dir: dist
          token: ${{ secrets.GITHUB_TOKEN }}