#pragma once
#include <string>
#include <vector>


namespace dp {
	/************************************************************************/
	/* 字符串编码转换                                                         */
	/************************************************************************/
	class StringConvert
	{
	public:
		static std::string UnicodeToUTF8(const std::wstring & wstr);
		static std::wstring UTF8ToUnicode(const std::string & str);

		static std::string UnicodeToANSI(const std::wstring & wstr);
		static std::wstring ANSIToUnicode(const std::string & str);

		/*删除指定字符*/
		static std::string DeleteChar(std::string str, char c);
		static std::wstring DeleteWchar(std::wstring wstr, wchar_t c);

		/*删除前后空格*/
		static std::string StringTrim(std::string str);
		static std::wstring WStringTrim(std::wstring wstr);

		// 字符串分割
		static int StringSplit(std::vector<std::string>& dst, const std::string& src, const std::string& separator);
		static int WStringSplit(std::vector<std::wstring>& dst, const std::wstring& src, const std::wstring& separator);
	
		//大小写转换
		static std::string StringTolower(std::string str);
		static std::string StringToupper(std::string str);
	
	private:
		StringConvert();
		~StringConvert();
	};

	std::string CurrDir();
	std::string ReadFile(const std::string& file_path);


	/************************************************************************/
	/* 日期时间 字符串处理                                                     */
	/************************************************************************/
	enum TIME_STYLE
	{
		HMS_1 = 0,	//000000
		HMS_2,		//00:00:00
		HMS_3,		//00-00-00
		TIMESTAMP_SECOND,
		TIMESTAMP_MILLISECOND,
		TIMESTAMP_MICROSECOND
	};

	enum DATE_STYLE
	{
		YMD_1,		//2020/11/16
		YMD_2		//2020-11-16
	};

	class TimeString {
	private:
		TimeString() {};
		~TimeString() {};
	public:
		static std::string GetDateString(DATE_STYLE style);
		static std::string GetTimeString(TIME_STYLE style);
		static std::string GetTimestamp(TIME_STYLE style);

		/*毫秒时间戳转标准时间*/
		static std::string TimestampToStdTime(int64_t timestamp);

		//"2020-05-20 13:14:52"
		static std::string StdTimeToTimestamp(std::string strTime);
	};


}