/* $Id$ */

/** @file ai_log.cpp Implementation of AILog. */

#include "ai_log.hpp"
#include "../../core/alloc_func.hpp"
#include "../../player_func.h"
#include "../../debug.h"

/* static */ void AILog::Info(const char *message)
{
	AILog::Log(LOG_INFO, message);
}

/* static */ void AILog::Warning(const char *message)
{
	AILog::Log(LOG_WARNING, message);
}

/* static */ void AILog::Error(const char *message)
{
	AILog::Log(LOG_ERROR, message);
}

/* static */ void AILog::Log(AILog::AILogType level, const char *message)
{
	if (AIObject::GetLogPointer() == NULL) {
		AIObject::GetLogPointer() = new LogData();
		LogData *log = (LogData *)AIObject::GetLogPointer();

		log->lines = CallocT<char *>(80);
		log->type = CallocT<AILog::AILogType>(80);
		log->count = 80;
		log->pos = log->count;
	}
	LogData *log = (LogData *)AIObject::GetLogPointer();

	/* Go to the next log-line */
	log->pos = (log->pos + 1) % log->count;

	/* Free last message, and write new message */
	free(log->lines[log->pos]);
	log->lines[log->pos] = strdup(message);
	log->type[log->pos] = level;

	/* Cut string after first \n */
	char *p;
	while ((p = strchr(log->lines[log->pos], '\n')) != NULL) {
		*p = '\0';
		break;
	}

	/* Also still print to debug window */
	DEBUG(ai, level, "[%d] %s", (uint)_current_player, log->lines[log->pos]);
}

/* static */ void AILog::FreeLogPointer()
{
	LogData *log = (LogData *)AIObject::GetLogPointer();

	for (int i = 0; i < log->count; i++) {
		free(log->lines[i]);
	}

	free(log->lines);
	free(log->type);
	delete log;
}