/*
Crafter® Build
Copyright (C) 2026 Catcrafts®
Catcrafts.net

LGPL-3.0-only.
*/

import std;
#include "TestUtil.h"
namespace fs = std::filesystem;
using namespace TestUtil;

namespace {
    bool Contains(std::string_view haystack, std::string_view needle) {
        return haystack.find(needle) != std::string_view::npos;
    }

    std::string PickQemu() {
        if (const char* v = std::getenv("CRAFTER_TEST_QEMU"); v && *v) return v;
        return "qemu-x86_64";
    }

    bool QemuPresent(const std::string& qemu) {
        std::string cmd = std::format("which {} > /dev/null 2>&1", qemu);
        return std::system(cmd.c_str()) == 0;
    }
}

int main() {
    try {
        std::string qemu = PickQemu();
        if (!QemuPresent(qemu)) {
            std::println("(skipped: {} not on PATH)", qemu);
            return 0;
        }

        fs::path projectRoot = fs::current_path();
        fs::path src = projectRoot / "tests" / "fixtures" / "qemu-runner";
        fs::path crafterBuild = projectRoot / "bin" / "crafter-build";

        fs::path work = CopyFixtureToTemp("QemuUser", src);

        // Tell the inner crafter-build to use qemu for the host triple via the
        // FromEnv mechanism that the fixture's project.cpp opted into.
        auto run = RunInDir(work, std::format(
            "CRAFTER_BUILD_RUNNER_x86_64_pc_linux_gnu='qemu:{}' '{}' test",
            qemu, crafterBuild.string()));

        if (run.exitCode != 0) {
            std::println(std::cerr, "inner runner failed (rc={}):\n{}", run.exitCode, run.output);
            return 1;
        }
        if (!Contains(run.output, std::format("\xE2\x9C\x85 Hello (qemu:{})", qemu))) {
            std::println(std::cerr,
                "expected '✅ Hello (qemu:{})' marker not found in inner output:\n{}",
                qemu, run.output);
            return 1;
        }
        return 0;
    } catch (const std::exception& e) {
        std::println(std::cerr, "test exception: {}", e.what());
        return 1;
    }
}