import std;
import Crafter.Build;
namespace fs = std::filesystem;
using namespace Crafter;

extern "C" Configuration CrafterBuildProject(std::span<const std::string_view> args) {
    constexpr std::array<std::string_view, 8> mathInterfaces = {
        "interfaces/Crafter.Math-Basic",
        "interfaces/Crafter.Math",
        "interfaces/Crafter.Math-Common",
        "interfaces/Crafter.Math-Vector",
        "interfaces/Crafter.Math-Intersection",
        "interfaces/Crafter.Math-MatrixRowMajor",
        "interfaces/Crafter.Math-VectorF16",
        "interfaces/Crafter.Math-VectorF32",
    };

    Configuration cfg;
    cfg.path = "./";
    cfg.name = "Crafter.Math";
    cfg.outputName = "Crafter.Math";
    cfg.type = ConfigurationType::LibraryStatic;
    ApplyStandardArgs(cfg, args);
    {
        std::array<fs::path, 8> ifaces;
        std::ranges::copy(mathInterfaces, ifaces.begin());
        std::array<fs::path, 0> impls = {};
        cfg.GetInterfacesAndImplementations(ifaces, impls);
    }

    auto addTest = [&](std::string_view testName, std::string march, std::string mtune, std::string target = {}) {
        Test t;
        t.config.path = "./";
        t.config.name = std::format("{}-{}", testName, march);
        t.config.outputName = t.config.name;
        t.config.target = target.empty() ? cfg.target : target;
        t.config.type = ConfigurationType::Executable;
        t.config.march = march;
        t.config.mtune = mtune;
        t.config.debug = cfg.debug;
        std::array<fs::path, 8> ifaces;
        std::ranges::copy(mathInterfaces, ifaces.begin());
        std::array<fs::path, 1> impls = { fs::path{std::format("tests/{}", testName)} };
        t.config.GetInterfacesAndImplementations(ifaces, impls);
        cfg.tests.push_back(std::move(t));
    };
    const std::string_view target = cfg.target;
    const bool isX86 = target.starts_with("x86_64") || target.starts_with("i686");
    const bool isRiscv = target.starts_with("riscv");
    for (std::string_view name : { "Vector", "Intersection", "Matrix" }) {
        if (isX86) {
            addTest(name, "sapphirerapids", "native");
            addTest(name, "x86-64-v4", "generic");
            addTest(name, "x86-64-v3", "generic");
        }
        if (isRiscv) {
            // RISC-V tiers, mirroring the x86 selector: register width is
            // picked from the guaranteed VLEN encoded in the march's Zvl*
            // suffix. rv64gcv → ZVL128B (matches the RVA23 baseline).
            addTest(name, "rv64gcv_zvl512b", "generic");
            addTest(name, "rv64gcv_zvl256b", "generic");
            addTest(name, "rv64gcv",         "generic");
        }
    }

    return cfg;
}