#include "debug.h"

#include <iostream>
#include <stdio.h>

using namespace std;

#ifdef _DEBUG
	FILE *g_fDebug       = 0;
	time_t g_lastTime    = time(0);
	unsigned int iIndent = 0;

	pthread_mutex_t  m_oneAtATime = PTHREAD_MUTEX_INITIALIZER;

	bool DebugPrint(const char *sMessage, const int iType) {
		if (!sMessage) return false;

		bool bFinishLine  = true;
		bool bShowIndent  = true;
		bool bShowMessage = true;
		char *sPrefix     = 0, 
			 *sPostfix    = 0;
		unsigned int iNewIndent=iIndent;

		switch (iType) {
			case DEBUG_ERROR: {
				//breakpoint here to highlight all error states in debug
				sPrefix  = "ERROR ************** ";
				sPostfix = " ***************";
				break;
			}
			case DEBUG_LINE_QUALIFIED: {
				sPrefix  = "{";
				sPostfix = "}";
				break;
			}
			case DEBUG_FUNCTIONSTART: {
				sPrefix  = "[";
				sPostfix = "]";
			}
			case DEBUG_BLOCKSTART: {
				iNewIndent = iIndent+1;
				break;
			}
			case DEBUG_CHECK: {
				sPostfix   = "...";
				//bFinishLine=false;
				iNewIndent = iIndent+1;
				break;
			}
			case DEBUG_BLOCKEND:
			case DEBUG_FUNCTIONEND: {
				bFinishLine  = false;
				bShowIndent  = false;
				bShowMessage = false;
				if (iIndent  > 0) iNewIndent = --iIndent;
				break;
			}
			case DEBUG_RESULT: {
				//bShowIndent=false;
				sPrefix  = "(";
				sPostfix = ")";
				if (iIndent > 0) iNewIndent = --iIndent;
				break;
			}
		}

		//indent
		char sIndent[1024];
		if (iIndent > 1023) iIndent = 1023;
		memset(sIndent, '\t', iIndent);
		sIndent[iIndent] = '\0';

		pthread_mutex_lock(&m_oneAtATime);
			time_t now           = time(0);
			unsigned int seconds = now - g_lastTime;
			g_lastTime           = now;
			cout << "(" << seconds << ") -> " << sMessage << "\n";
			fflush(stdout);

			//file output
			if (g_fDebug) {
				if (bShowIndent)  fputs(sIndent,  g_fDebug); //indent
				if (sPrefix)      fputs(sPrefix,  g_fDebug); //pre
				if (bShowMessage) fputs(sMessage, g_fDebug); //message
				if (sPostfix)     fputs(sPostfix, g_fDebug); //post
				if (bFinishLine)  fputs("\n",     g_fDebug); //EOL
				fflush(g_fDebug);
			}
			iIndent = iNewIndent;
		pthread_mutex_unlock(&m_oneAtATime);

		return true;
	}
	bool DebugInit() {
		if (!g_fDebug) _FOPEN(g_fDebug, "tips.log", "w" ); //creates the log file in the source code directory
		return (g_fDebug != NULL);
	}
	bool DebugFinalise() {
		if (g_fDebug) {fclose(g_fDebug); g_fDebug = 0;}
		return true;
	}

#endif