#pragma once

#include <initializer_list>

#include "Types.h"
#include "Array.h"
#include "UTF.h"
#include "Str.h"

namespace lwe
{
	/// A helper class for holding error information and handling them.
	/// @tparam T The character data type to use.
	/// @tparam N The number data type to use.
	class Log
	{
	private:
        static void (*logCb)(const Log&);
		static Log lastLog;
		Array<Str_8> tags;
		UInt_64 code;
		Str_8 msg;

	public:
        static void SetCallback(void (*newLogCb)(const Log&));

        static void Raise(const Log& log);

		/// Retrieves the last log raised.
		static Log GetLastLog();

        /// Default members initialization.
		Log();

        /// Initializes members with the given information.
        /// @param [in] tags The tags to associate this log with.
		/// @param [in] code The unique code to use.
        /// @param [in] msg Detailed information about what happened.
		Log(std::initializer_list<Str_8> tags, const UInt_64 code, const Str_8& msg);

        /// Initializes members with the given information.
        /// @param [in] tags The tags to associate this log with.
		/// @param [in] code The unique code to use.
        /// @param [in] msg Detailed information about what happened.
        Log(Array<Str_8>& tags, const UInt_64 code, const Str_8& msg);

        /// Copies all members from the given log.
        /// @param [in] log The log to copy from.
		Log(const Log& log);

        /// Copies all members from the given log.
        /// @param [in] log The log to copy from.
        /// @returns The log that has been assigned to.
        Log& operator=(const Log& log);

		/*
        /// Compares with another given log.
        /// @param [in] log The log to compare with.
        /// @returns Whether or not they are equal.
		bool operator==(const Log log);

        /// Compares with another given log.
        /// @param [in] log The log to compare with.
        /// @returns Whether or not they are equal.
		bool operator!=(const Log log);
		*/

        /// Checks whether or not this log has the given tags.
        /// @param [in] tags The tags to look for.
        /// @returns True if all tags were found, otherwise false.
		bool HasTags(const std::initializer_list<Str_8> tags) const;

        /// Checks whether or not this log has the given tags.
        /// @param [in] tags The tags to look for.
        /// @returns True if all tags were found, otherwise false.
		bool HasTags(const Array<Str_8>& tags) const;

		/// Checks whether or not this log has the given tag.
		/// @param [in] tag The tag to look for.
		/// @returns True if tag was found, otherwise false.
		bool HasTag(const Str_8& tag) const;

		/// Retrieves all the tags.
		/// @returns The result.
        Array<Str_8> GetTags() const;

		UInt_64 GetCode() const;

		/// Retrieves the detailed error message string.
		/// @returns The error message.
		Str_8 GetMsg() const;

		Str_8 ToStr() const;

		/// Retrieves whether or not this is a valid object.
		/// @returns The result.
		/// @note To be a valid object it must have one or more tags and a message size greater than zero.
		bool IsValid() const;
	};
}

#ifndef LWE_LOG_INT
	#ifdef LWE_DEBUG
		#define LWE_LOG_INT(type, code, msg) Log::Raise({{type, GetAcronym_8(), LWE_FILE, LWE_FUNC, Str_8::FromNum((UInt_32)LWE_LINE)}, code, msg})
	#else
		#define LWE_LOG_INT(type, code, msg) Log::Raise({{type, GetAcronym_8(), LWE_FUNC}, code, msg})
	#endif
#endif

#ifndef LWE_LOG
	#ifdef LWE_DEBUG
		#define LWE_LOG(type, code, msg) lwe::Log::Raise({{type, lwe::GetAppName_8(), LWE_FILE, LWE_FUNC, lwe::Str_8::FromNum((lwe::UInt_32)LWE_LINE)}, code, msg})
	#else
		#define LWE_LOG(type, code, msg) lwe::Log::Raise({{type, lwe::GetAppName_8(), LWE_FUNC}, code, msg})
	#endif
#endif