#include "Paths.h"

#include <cstdlib>

#if defined(_WIN32)
#ifndef NOMINMAX
#define NOMINMAX
#endif
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif
#include <windows.h>
#endif

#ifndef BS_ASSET_DIR
#define BS_ASSET_DIR "assets"
#endif

namespace bs {

namespace fs = std::filesystem;

fs::path executableDir() {
#if defined(_WIN32)
    std::wstring buf(32768, L'\0');
    DWORD n = GetModuleFileNameW(nullptr, buf.data(), DWORD(buf.size()));
    buf.resize(n);
    return fs::path(buf).parent_path();
#else
    std::error_code ec;
    fs::path exe = fs::read_symlink("/proc/self/exe", ec);
    return ec ? fs::current_path() : exe.parent_path();
#endif
}

fs::path userDataDir() {
    fs::path base;
#if defined(_WIN32)
    if (const char* a = std::getenv("APPDATA"); a && *a) base = a;
#else
    if (const char* x = std::getenv("XDG_DATA_HOME"); x && *x) base = x;
    else if (const char* h = std::getenv("HOME"); h && *h) base = fs::path(h) / ".local/share";
#endif
    if (base.empty()) base = ".";
    fs::path d = base / "brandling-safari";
    std::error_code ec;
    fs::create_directories(d, ec);
    return d;
}

const std::string& gameAssetDir() {
    static const std::string dir = [] {
        fs::path packaged = executableDir() / "assets";
        std::error_code ec;
        if (fs::exists(packaged / "characters" / "manifest.json", ec)) return packaged.string();
        return std::string(BS_ASSET_DIR);
    }();
    return dir;
}

}  // namespace bs