/* $Id$ */

#include <AppKit/AppKit.h>

#include <mach/mach.h>
#include <mach/mach_host.h>
#include <mach/host_info.h>
#include <mach/machine.h>
#include <stdio.h>
#include "../../stdafx.h"
#include "../../openttd.h"
#include "../../newgrf.h"
#include "../../gfx.h"

#ifndef CPU_SUBTYPE_POWERPC_970
#define CPU_SUBTYPE_POWERPC_970 ((cpu_subtype_t) 100)
#endif

/*
 * This file contains objective C
 * Apple uses objective C instead of plain C to interact with OS specific/native functions
 *
 * Note: TrueLight's crosscompiler can handle this, but it likely needs a manual modification for each change in this file.
 * To insure that the crosscompiler still works, let him try any changes before they are committed
 */

static char *GetOSString(void)
{
	static char buffer[175];
	char CPU[20];
	char OS[20];
	char newgrf[125];
	long		sysVersion;
    extern const char _openttd_revision[];


	// get the hardware info
	host_basic_info_data_t hostInfo;
	mach_msg_type_number_t infoCount;

	infoCount = HOST_BASIC_INFO_COUNT;
	host_info(mach_host_self(), HOST_BASIC_INFO,
			  (host_info_t)&hostInfo, &infoCount);

	// replace the hardware info with strings, that tells a bit more than just an int
#ifdef __POWERPC__
	switch (hostInfo.cpu_subtype) {
		case CPU_SUBTYPE_POWERPC_750:
			sprintf(CPU,"G3");
			break;
		case CPU_SUBTYPE_POWERPC_7400:
		case CPU_SUBTYPE_POWERPC_7450:
			sprintf(CPU,"G4");
			break;
		case CPU_SUBTYPE_POWERPC_970:
			sprintf(CPU,"G5");
			break;
		default:
			sprintf(CPU,"Unknown PPC");
	}
#else
	// it looks odd to have a switch for two cases, but it leaves room for easy expansion. Odds are that Apple will some day use newer CPUs than i686
	switch (hostInfo.cpu_subtype) {
		case CPU_SUBTYPE_PENTPRO:
			sprintf(CPU,"i686");
			break;
		default:
			sprintf(CPU,"Unknown Intel");
	}
#endif

	// get the version of OSX
	if( Gestalt( gestaltSystemVersion, &sysVersion ) != noErr ) {
		sprintf(OS,"Undetected");
	} else {

		int		majorHiNib, majorLoNib, minorNib, bugNib;

		majorHiNib = (sysVersion & 0x0000F000) >> 12;
		majorLoNib = (sysVersion & 0x00000F00) >> 8;
		minorNib = (sysVersion & 0x000000F0) >> 4;
		bugNib = sysVersion & 0x0000000F;

		sprintf(OS, "%d%d.%d.%d", majorHiNib, majorLoNib, minorNib, bugNib);
	}

	// make a list of used newgrf files
	if (_first_grffile != NULL) {
		GRFFile *file;
		newgrf[0] = 0;


		for (file = _first_grffile; file != NULL; file = file->next) {
			sprintf(newgrf, "%s %s", newgrf, file->filename);
		}
	} else {
		sprintf(newgrf, "none");
	}
	sprintf(buffer, "Please add this info: (tip: copy-paste works)\nCPU: %s, OSX: %s, OpenTTD version: %s\nNewGRF files:%s", CPU, OS, _openttd_revision, newgrf);
	return buffer;
}


#ifdef WITH_SDL

void ShowMacDialog ( const char *title, const char *message, const char *buttonLabel )
{
	NSRunAlertPanel([NSString stringWithCString: title], [NSString stringWithCString: message], [NSString stringWithCString: buttonLabel], nil, nil);
}

#elif defined WITH_COCOA

void CocoaDialog ( const char *title, const char *message, const char *buttonLabel );

void ShowMacDialog ( const char *title, const char *message, const char *buttonLabel )
{
	CocoaDialog(title, message, buttonLabel);
}


#else

void ShowMacDialog ( const char *title, const char *message, const char *buttonLabel )
{
	fprintf(stderr, "%s: %s\n", title, message);
}

#endif

void ShowMacAssertDialog ( const char *function, const char *file, const int line, const char *expression )
{
	const char *buffer =
	[[NSString stringWithFormat:@"An assertion has failed and OpenTTD must quit.\n%s in %s (line %d)\n\"%s\"\n\nYou should report this error the OpenTTD developers if you think you found a bug.\n\n%s",
		function, file, line, expression, GetOSString()] cString];
	NSLog(@"%s", buffer);
	ToggleFullScreen(0);
	ShowMacDialog( "Assertion Failed", buffer, "Quit" );

	// abort so that a debugger has a chance to notice
	abort();
}


void ShowMacErrorDialog(const char *error)
{
	const char *buffer =
	[[NSString stringWithFormat:@"Please update to the newest version of OpenTTD\nIf the problem presists, please report this to\nhttp://bugs.openttd.org\n\n%s", GetOSString()] cString];
	ToggleFullScreen(0);
	ShowMacDialog(error, buffer, "Quit" );
	abort();
}