#pragma once
#include "mcp_utils.h"
#include <Windows.h>
#include <tchar.h>
#include <ghc/filesystem.hpp>

namespace mcp_utils
{
	std::wstring utf8ToWString(const std::string &utf8Str)
	{
		if (utf8Str.empty()) return std::wstring();

		// 第一次调用获取需要的宽字符缓冲区大小
		int sizeNeeded = ::MultiByteToWideChar(CP_UTF8, 0, &utf8Str[0], (int)utf8Str.size(), NULL, 0);
		std::wstring wstrTo(sizeNeeded, 0);

		// 第二次调用真正进行转换
		::MultiByteToWideChar(CP_UTF8, 0, &utf8Str[0], (int)utf8Str.size(), &wstrTo[0], sizeNeeded);
		return wstrTo;
	}

	bool mcp_utils::hasFileExist(const std::wstring &filePath) { return _taccess(filePath.c_str(), 0) == 0; }

	bool mcp_utils::hasDirExist(const std::wstring &filePath) { return _taccess(filePath.c_str(), 0) == 0; }

	std::wstring getModelDir()
	{
		TCHAR szPath[MAX_PATH];
		::GetModuleFileName(_hdllInstance, szPath, MAX_PATH);
		ghc::filesystem::path path(szPath);
		return path.parent_path().wstring();
	}

	fs::path getModelDirPath()
	{
		return fs::path(getModelDir());
	}

	fs::path relative2absolute(const std::string &relativePath, const fs::path &rootPath)
	{
		return relative2absolute(fs::path(utf8ToWString(relativePath)), rootPath);
	}

	fs::path relative2absolute(const fs::path &relativePath, const fs::path &rootPath)
	{
		fs::path absolutePath = rootPath / relativePath;
		return absolutePath.lexically_normal().wstring();
	}
}