/*	EQEmu: EQEmulator

	Copyright (C) 2001-2026 EQEmu Development Team

	This program is free software; you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation; either version 3 of the License, or
	(at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "packet_dump_file.h"

#include "common/eq_stream_intf.h"

#include <cstdarg>
#include <cstdio>
#include <cstring>
#include <fstream>
#include <iomanip>
#include <iostream>


void FileDumpPacketAscii(const char* filename, const uchar* buf, uint32 size, uint32 cols, uint32 skip) {
	std::ofstream logfile(filename, std::ios::app);
	// Output as ASCII
	for(uint32 i=skip; i<size; i++)
	{
		if ((i-skip)%cols==0)
		{
			logfile << std::endl << std::setw(3) << std::setfill(' ') << i-skip << ":";
		}
		else if ((i-skip)%(cols/2)==0)
		{
			logfile << " - ";
		}
		if (buf[i] > 32 && buf[i] < 127)
		{
			logfile << buf[i];
		}
		else
		{
			logfile << '.';
		}
	}
	logfile << std::endl << std::endl;
}

void oldFileDumpPacketHex(const char* filename, const uchar* buf, uint32 size, uint32 cols, uint32 skip)
{
	std::ofstream logfile(filename, std::ios::app);
	// Output as HEX
	char output[4];
	for(uint32 i=skip; i<size; i++)
	{
		if ((i-skip)%cols==0)
		{
			logfile << std::endl << std::setw(3) << std::setfill(' ') << i-skip << ": ";
		}
		else if ((i-skip)%(cols/2) == 0)
		{
			logfile << "- ";
		}
		sprintf(output, "%02X ",(unsigned char)buf[i]);
		logfile << output;
		//logfile << std::setfill(0) << std::setw(2) << std::hex << (int)buf[i] << " "; // unknown intent [CODEBUG]
	}
	logfile << std::endl << std::endl;
}

void FileDumpPacketHex(const char* filename, const uchar* buf, uint32 size, uint32 cols, uint32 skip)
{
	if (size == 0)
		return;
	std::ofstream logfile(filename, std::ios::app);
	// Output as HEX
	char output[4];
	int j = 0;
	auto ascii = new char[cols + 1];
	memset(ascii, 0, cols + 1);
	uint32 i;
	for(i=skip; i<size; i++)
	{
		if ((i-skip)%cols==0) {
			if (i != skip)
				logfile << " | " << ascii << std::endl;
			logfile << std::setw(4) << std::setfill(' ') << i-skip << ": ";
			memset(ascii, 0, cols+1);
			j = 0;
		}
		else if ((i-skip)%(cols/2) == 0) {
			logfile << "- ";
		}
		sprintf(output, "%02X ", (unsigned char)buf[i]);
		logfile << output;

		if (buf[i] >= 32 && buf[i] < 127) {
			ascii[j++] = buf[i];
		}
		else {
			ascii[j++] = '.';
		}
		//logfile << std::setfill(0) << std::setw(2) << std::hex << (int)buf[i] << " "; // unknown intent [CODEBUG]
	}
	uint32 k = ((i-skip)-1)%cols;
	if (k < 8)
		logfile << "  ";
	for (uint32 h = k+1; h < cols; h++) {
		logfile << "   ";
	}
	logfile << " | " << ascii << std::endl;
	delete[] ascii;
}

void FileDumpPacketHex(const char* filename, const EQApplicationPacket* app)
{
	FileDumpPacketHex(filename, app->pBuffer, app->size);
}

void FileDumpPacketAscii(const char* filename, const EQApplicationPacket* app)
{
	FileDumpPacketAscii(filename, app->pBuffer, app->size);
}

void FileDumpPacket(const char* filename, const uchar* buf, uint32 size)
{
	FilePrintLine(filename, true, "Size: %5i", size);
	FileDumpPacketHex(filename, buf, size);
//	FileDumpPacketAscii(filename, buf,size);
}

void FileDumpPacket(const char* filename, const EQApplicationPacket* app)
{
	FilePrintLine(filename, true, "Size: %5i, OPCode: 0x%04x", app->size, app->GetOpcode());
	FileDumpPacketHex(filename, app->pBuffer, app->size);
//	FileDumpPacketAscii(filename, app->pBuffer, app->size);
}

/*
	prints a line to the file. if text = 0, prints a blank line
	if prefix_timestamp specified, prints the current date/time to the file + ": " + text
*/
void FilePrintLine(const char* filename, bool prefix_timestamp, const char* text, ...) {
	std::ofstream logfile(filename, std::ios::app);
	if (prefix_timestamp) {
		time_t rawtime;
		struct tm* gmt_t;
		time(&rawtime);
		gmt_t = gmtime(&rawtime);
		logfile << (gmt_t->tm_year + 1900) << "/" << std::setw(2) << std::setfill('0') << (gmt_t->tm_mon + 1) << "/" << std::setw(2) << std::setfill('0') << gmt_t->tm_mday << " " << std::setw(2) << std::setfill('0') << gmt_t->tm_hour << ":" << std::setw(2) << std::setfill('0') << gmt_t->tm_min << ":" << std::setw(2) << std::setfill('0') << gmt_t->tm_sec << " GMT";
	}

	if (text != 0) {
		va_list argptr;
		char buffer[256];
		va_start(argptr, text);
		vsnprintf(buffer, 256, text, argptr);
		va_end(argptr);

		if (prefix_timestamp)
			logfile << ": ";
		logfile << buffer;
	}
	logfile << std::endl;
}

void FilePrint(const char* filename, bool newline, bool prefix_timestamp, const char* text, ...) {
	std::ofstream logfile(filename, std::ios::app);
	if (prefix_timestamp) {
		time_t rawtime;
		struct tm* gmt_t;
		time(&rawtime);
		gmt_t = gmtime(&rawtime);
		logfile << (gmt_t->tm_year + 1900) << "/" << std::setw(2) << std::setfill('0') << (gmt_t->tm_mon + 1) << "/" << std::setw(2) << std::setfill('0') << gmt_t->tm_mday << " " << std::setw(2) << std::setfill('0') << gmt_t->tm_hour << ":" << std::setw(2) << std::setfill('0') << gmt_t->tm_min << ":" << std::setw(2) << std::setfill('0') << gmt_t->tm_sec << " GMT";
	}

	if (text != 0) {
		va_list argptr;
		char buffer[1000];
		va_start(argptr, text);
		vsnprintf(buffer,1000, text, argptr);
		va_end(argptr);

		if (prefix_timestamp)
			logfile << ": ";
		logfile << buffer;
	}

	if (newline)
		logfile << std::endl;
}