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/* $Id$ */

/** @file debug.cpp Handling of printing debug messages. */

#include "stdafx.h"
#include <stdio.h>
#include <stdarg.h>
#include "openttd.h"
#include "console_func.h"
#include "debug.h"
#include "string_func.h"
#include "network/core/core.h"

#if defined(ENABLE_NETWORK)
SOCKET _debug_socket = INVALID_SOCKET;
#endif /* ENABLE_NETWORK */

int _debug_ai_level;
int _debug_driver_level;
int _debug_grf_level;
int _debug_map_level;
int _debug_misc_level;
int _debug_ms_level;
int _debug_net_level;
int _debug_sprite_level;
int _debug_oldloader_level;
int _debug_ntp_level;
int _debug_npf_level;
int _debug_yapf_level;
int _debug_freetype_level;
int _debug_sl_level;
int _debug_station_level;
int _debug_gamelog_level;


struct DebugLevel {
	const char *name;
	int *level;
};

#define DEBUG_LEVEL(x) { #x, &_debug_##x##_level }
	static const DebugLevel debug_level[] = {
	DEBUG_LEVEL(ai),
	DEBUG_LEVEL(driver),
	DEBUG_LEVEL(grf),
	DEBUG_LEVEL(map),
	DEBUG_LEVEL(misc),
	DEBUG_LEVEL(ms),
	DEBUG_LEVEL(net),
	DEBUG_LEVEL(sprite),
	DEBUG_LEVEL(oldloader),
	DEBUG_LEVEL(ntp),
	DEBUG_LEVEL(npf),
	DEBUG_LEVEL(yapf),
	DEBUG_LEVEL(freetype),
	DEBUG_LEVEL(sl),
	DEBUG_LEVEL(station),
	DEBUG_LEVEL(gamelog),
	};
#undef DEBUG_LEVEL

#if !defined(NO_DEBUG_MESSAGES)

static void debug_print(const char *dbg, const char *buf)
{
#if defined(ENABLE_NETWORK)
	if (_debug_socket != INVALID_SOCKET) {
		char buf2[1024 + 32];

		snprintf(buf2, lengthof(buf2), "dbg: [%s] %s\n", dbg, buf);
		send(_debug_socket, buf2, (int)strlen(buf2), 0);
	} else
#endif /* ENABLE_NETWORK */
	{
#if defined(WINCE)
		/* We need to do OTTD2FS twice, but as it uses a static buffer, we need to store one temporary */
		TCHAR tbuf[512];
		_sntprintf(tbuf, sizeof(tbuf), _T("%s"), OTTD2FS(dbg));
		NKDbgPrintfW(_T("dbg: [%s] %s\n"), tbuf, OTTD2FS(buf));
#else
		fprintf(stderr, "dbg: [%s] %s\n", dbg, buf);
#endif
		IConsoleDebug(dbg, buf);
	}
}

void CDECL debug(const char *dbg, ...)
{
	va_list va;
	va_start(va, dbg);
	const char *s;
	char buf[1024];

	s = va_arg(va, const char*);
	vsnprintf(buf, lengthof(buf), s, va);
	va_end(va);

	debug_print(dbg, buf);
}
#endif /* NO_DEBUG_MESSAGES */

void SetDebugString(const char *s)
{
	int v;
	char *end;
	const char *t;

	/* global debugging level? */
	if (*s >= '0' && *s <= '9') {
		const DebugLevel *i;

		v = strtoul(s, &end, 0);
		s = end;

		for (i = debug_level; i != endof(debug_level); ++i) *i->level = v;
	}

	/* individual levels */
	for (;;) {
		const DebugLevel *i;
		int *p;

		/* skip delimiters */
		while (*s == ' ' || *s == ',' || *s == '\t') s++;
		if (*s == '\0') break;

		t = s;
		while (*s >= 'a' && *s <= 'z') s++;

		/* check debugging levels */
		p = NULL;
		for (i = debug_level; i != endof(debug_level); ++i)
			if (s == t + strlen(i->name) && strncmp(t, i->name, s - t) == 0) {
				p = i->level;
				break;
			}

		if (*s == '=') s++;
		v = strtoul(s, &end, 0);
		s = end;
		if (p != NULL) {
			*p = v;
		} else {
			ShowInfoF("Unknown debug level '%.*s'", s - t, t);
			return;
		}
	}
}

/** Print out the current debug-level
 * Just return a string with the values of all the debug categorites
 * @return string with debug-levels
 */
const char *GetDebugString()
{
	const DebugLevel *i;
	static char dbgstr[150];
	char dbgval[20];

	memset(dbgstr, 0, sizeof(dbgstr));
	i = debug_level;
	snprintf(dbgstr, sizeof(dbgstr), "%s=%d", i->name, *i->level);

	for (i++; i != endof(debug_level); i++) {
		snprintf(dbgval, sizeof(dbgval), ", %s=%d", i->name, *i->level);
		strecat(dbgstr, dbgval, lastof(dbgstr));
	}

	return dbgstr;
}

#ifdef DEBUG_DUMP_COMMANDS
#include "fileio_func.h"

void CDECL DebugDumpCommands(const char *s, ...)
{
	static FILE *f = FioFOpenFile("commands-out.log", "wb", AUTOSAVE_DIR);
	if (f == NULL) return;

	va_list va;
	va_start(va, s);
	vfprintf(f, s, va);
	va_end(va);

	fflush(f);
}
#endif /* DEBUG_DUMP_COMMANDS */