//

//  gameSetup.m

//  hwengine

//

//  Created by Vittorio on 10/01/10.

//  Copyright 2010 __MyCompanyName__. All rights reserved.

//

#import "GameSetup.h"

#import "SDL_uikitappdelegate.h"

#import "SDL_net.h"

#import "PascalImports.h"

#define BUFFER_SIZE 256

@implementation GameSetup

@synthesize systemSettings;

-(id) init {

	self = [super init];

	srandom(time(NULL));

	ipcPort = (random() % 64541) + 1024 ;//(arc4random() % ((unsigned)64541)) + 1024;

	NSString *filePath = [[SDLUIKitDelegate sharedAppDelegate] dataFilePath:@"settings.plist"];

	self.systemSettings = [[NSDictionary alloc] initWithContentsOfFile:filePath]; //should check it exists

	return self;

}

-(void) dealloc {

	[super dealloc];

}

#pragma mark -

#pragma mark Thread/Network relevant code

-(void) startThread: (NSString *) selector {

	SEL usage = NSSelectorFromString(selector);

	[NSThread detachNewThreadSelector:usage toTarget:self withObject:nil];

}

-(int) sendToEngine: (NSString *)string {

	Uint8 length = [string length];

	SDLNet_TCP_Send(csd, &length , 1);

	return SDLNet_TCP_Send(csd, [string UTF8String], length);

}

-(void) engineProtocol {

	NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];

	IPaddress ip;

	int eProto;

	BOOL clientQuit, serverQuit;

	char buffer[BUFFER_SIZE], string[BUFFER_SIZE];

	Uint8 msgSize;

	Uint16 gameTicks;

	if (SDLNet_Init() < 0) {

		NSLog(@"SDLNet_Init: %s", SDLNet_GetError());

		exit(EXIT_FAILURE);

	}

	/* Resolving the host using NULL make network interface to listen */

	if (SDLNet_ResolveHost(&ip, NULL, ipcPort) < 0) {

		NSLog(@"SDLNet_ResolveHost: %s\n", SDLNet_GetError());

		exit(EXIT_FAILURE);

	}

	/* Open a connection with the IP provided (listen on the host's port) */

	if (!(sd = SDLNet_TCP_Open(&ip))) {

		NSLog(@"SDLNet_TCP_Open: %s\n", SDLNet_GetError());

		exit(EXIT_FAILURE);

	}

	NSLog(@"engineProtocol - Waiting for a client on port %d", ipcPort);

	serverQuit = NO;

	while (!serverQuit) {

		/* This check the sd if there is a pending connection.

		 * If there is one, accept that, and open a new socket for communicating */

		csd = SDLNet_TCP_Accept(sd);

		if (NULL != csd) {

			NSLog(@"engineProtocol - Client found");

			//first byte of the command alwayas contain the size of the command

			SDLNet_TCP_Recv(csd, &msgSize, sizeof(Uint8));

			SDLNet_TCP_Recv(csd, buffer, msgSize);

			gameTicks = SDLNet_Read16(&buffer[msgSize - 2]);

			//NSLog(@"engineProtocol - %d: received [%s]", gameTicks, buffer);

			if ('C' == buffer[0]) {

				NSLog(@"engineProtocol - sending game config");

				// send config data data

				/*

				seed is arbitrary string

				addteam <color> <team name>

				addhh <level> <health> <hedgehog name>

				  <level> is 0 for human, 1-5 for bots (5 is the most stupid)

				 */

				// local game

				[self sendToEngine:@"TL"];

				// seed info

				[self sendToEngine:@"eseed {232c1b42-7d39-4ee6-adf8-4240e1f1efb8}"];

				// various flags

				[self sendToEngine:@"e$gmflags 256"]; 

				// various flags

				[self sendToEngine:@"e$damagepct 100"];

				// various flags

				[self sendToEngine:@"e$turntime 45000"];

				// various flags

				[self sendToEngine:@"e$minestime 3000"];

				// various flags

				[self sendToEngine:@"e$landadds 4"];

				// various flags

				[self sendToEngine:@"e$sd_turns 15"];

				// various flags

				[self sendToEngine:@"e$casefreq 5"];

				// dimension of the map

				[self sendToEngine:@"e$template_filter 1"];

				// theme info

				[self sendToEngine:@"etheme Freeway"];

				// team 1 info

				[self sendToEngine:@"eaddteam 4421353 System Cats"];

				// team 1 grave info

				[self sendToEngine:@"egrave star"];

				// team 1 fort info

				[self sendToEngine:@"efort Earth"];

				// team 1 voicepack info

				[self sendToEngine:@"evoicepack Classic"];

				// team 1 binds (skipped)			

				// team 1 members info

				[self sendToEngine:@"eaddhh 0 100 Snow Leopard"];

				[self sendToEngine:@"ehat NoHat"];

				// team 1 ammostore

				[self sendToEngine:@"eammstore 93919294221991210322351110012010000002110404000441400444645644444774776112211144"];

				// team 2 info

				[self sendToEngine:@"eaddteam 4100897 Poke-MAN"];

				// team 2 grave info

				[self sendToEngine:@"egrave Badger"];

				// team 2 fort info

				[self sendToEngine:@"efort UFO"];

				// team 2 voicepack info

				[self sendToEngine:@"evoicepack Classic"];

				// team 2 binds (skipped)

				// team 2 members info

				[self sendToEngine:@"eaddhh 0 100 Raichu"];

				[self sendToEngine:@"ehat Bunny"];

				// team 2 ammostore

				[self sendToEngine:@"eammstore 93919294221991210322351110012010000002110404000441400444645644444774776112211144"];

				clientQuit = NO;

			} else {

				NSLog(@"engineProtocolThread - wrong message or client closed connection");

				clientQuit = YES;

			}

			while (!clientQuit){

				/* Now we can communicate with the client using csd socket

				 * sd will remain opened waiting other connections */

				msgSize = 0;

				memset(buffer, 0, BUFFER_SIZE);

				memset(string, 0, BUFFER_SIZE);

				if (SDLNet_TCP_Recv(csd, &msgSize, sizeof(Uint8)) <= 0)

					clientQuit = YES;

				if (SDLNet_TCP_Recv(csd, buffer, msgSize) <=0)

					clientQuit = YES;

				gameTicks = SDLNet_Read16(&buffer[msgSize - 2]);

				//NSLog(@"engineProtocolThread - %d: received [%s]", gameTicks, buffer);

				switch (buffer[0]) {

					case '?':

						NSLog(@"Ping? Pong!");

						[self sendToEngine:@"!"];

						break;

					case 'E':

						NSLog(@"ERROR - last console line: [%s]", buffer);

						clientQuit = YES;

						break;

					case 'e':

						sscanf(buffer, "%*s %d", &eProto);

						if (HW_protoVer() == eProto) {

							NSLog(@"Setting protocol version %s", buffer);

						} else {

							NSLog(@"ERROR - wrong protocol number: [%s] - expecting %d", buffer, eProto);

							clientQuit = YES;

						}

						break;

					case 'i':

						switch (buffer[1]) {

							case 'r':

								NSLog(@"Winning team: %s", &buffer[2]);

								break;

							case 'k':

								NSLog(@"Best Hedgehog: %s", &buffer[2]);

								break;

						}

						break;

					default:

						// empty packet or just statistics

						break;

					// missing case for exiting right away

				}

			}

			NSLog(@"Engine exited, closing server");

			// wait a little to let the client close cleanly

			[NSThread sleepForTimeInterval:2];

			// Close the client socket

			SDLNet_TCP_Close(csd);

			serverQuit = YES;

		}

	}

	SDLNet_TCP_Close(sd);

	SDLNet_Quit();

	[pool release];

	[NSThread exit];

}

#pragma mark -

#pragma mark Setting methods

-(const char **)getSettings {

	const char **gameArgs = (const char**) malloc(sizeof(char*) * 7);

	NSString *ipcString = [[NSString alloc] initWithFormat:@"%d", ipcPort];

	NSString *localeString = [[NSString alloc] initWithFormat:@"%@.txt", [[NSLocale currentLocale] localeIdentifier]];

	gameArgs[0] = [[systemSettings objectForKey:@"username"] UTF8String];	//UserNick

	gameArgs[1] = [ipcString UTF8String];					//ipcPort

	gameArgs[2] = [[systemSettings objectForKey:@"sounds"] UTF8String];	//isSoundEnabled

	gameArgs[3] = [[systemSettings objectForKey:@"music"] UTF8String];	//isMusicEnabled

	gameArgs[4] = [localeString UTF8String];				//cLocaleFName

	gameArgs[5] = [[systemSettings objectForKey:@"volume"] UTF8String];	//cInitVolume

	gameArgs[6] = [[systemSettings objectForKey:@"alternate"] UTF8String];	//cAltDamage

	[localeString release];

	[ipcString release];

	return gameArgs;

}

@end