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#include <a_samp>
#include <a_mysql>
#include <foreach>
#include <mSelection>
#include <streamer>

//Configuring MySQL Stuff to set up the connection

#define MYSQL_HOST        "localhost" // Change this to your MySQL Remote IP or "localhost".
#define MYSQL_USER        "root" // Change this to your MySQL Database username.
#define MYSQL_PASS        "password" // Change this to your MySQL Database password.
#define MYSQL_DATABASE    "san_andreas" // Change this to your MySQL Database name.

// Well, don't just enter random information and expect it to work, information
// Should be valid and working fine.

#define DIALOG_REGISTER        (0)
#define DIALOG_LOGIN           (1)

// Make sure the dialog IDs above do not match any dialog ID you're using in your
// gamemode otherwise they won't do their job properly.

main( ) 
{ 

}


new MySQL: Database, Corrupt_Check[MAX_PLAYERS];

//Creating an enumerator to store player's data for further use (below).

//==============================================================================

enum ENUM_PLAYER_DATA
{
	ID,
	Name[25],
	
	Password[65],
	Salt[11],
	
	PasswordFails,
	
	Kills,
	Deaths,
	
	pSkin,
	
	Score,
	Cash,
	
	Cache: Player_Cache,
	bool:LoggedIn
}

new pInfo[MAX_PLAYERS][ENUM_PLAYER_DATA];
new skinlist = mS_INVALID_LISTID;

//==============================================================================
//==============================================================================


public OnGameModeInit()
{
	skinlist = LoadModelSelectionMenu("skins.txt");
	new MySQLOpt: option_id = mysql_init_options();
	mysql_set_option(option_id, AUTO_RECONNECT, true); 
	Database = mysql_connect(MYSQL_HOST, MYSQL_USER, MYSQL_PASS, MYSQL_DATABASE, option_id); 

	if(Database == MYSQL_INVALID_HANDLE || mysql_errno(Database) != 0) 
	{
		print("I couldn't connect to the MySQL server, closing."); 

		SendRconCommand("exit"); 
		return 1;
	}

	print("I have connected to the MySQL server."); // If the given MySQL details were all okay, this message prints to the log.
	
	mysql_tquery(Database, "CREATE TABLE IF NOT EXISTS `PLAYERS` (`ID` int(11) NOT NULL AUTO_INCREMENT,`USERNAME` varchar(24) NOT NULL,`PASSWORD` char(65) NOT NULL,`SALT` char(11) NOT NULL,`SCORE` mediumint(7), `KILLS` mediumint(7), `CASH` mediumint(7) NOT NULL DEFAULT '0',`DEATHS` mediumint(7) NOT NULL DEFAULT '0',`PSKIN` mediumint(7) NOT NULL DEFAULT '0', PRIMARY KEY (`ID`), UNIQUE KEY `USERNAME` (`USERNAME`))");
	
	return 1;
}

public OnGameModeExit()
{	
	
	foreach(new i: Player)
    {
		if(IsPlayerConnected(i)) // Checking if the players stored in "i" are connected.
		{
			OnPlayerDisconnect(i, 1); // We do that so players wouldn't lose their data upon server's close.
		}
	}
	mysql_close(Database); // Closing the database.
	
	return 1;
}
	
public OnPlayerConnect(playerid)
{
	new DB_Query[115];
	//Resetting player information.
	pInfo[playerid][Kills] = 0;
	pInfo[playerid][Deaths] = 0;
	pInfo[playerid][PasswordFails] = 0;

	GetPlayerName(playerid, pInfo[playerid][Name], MAX_PLAYER_NAME); // Getting the player's name.
	Corrupt_Check[playerid]++;
	
	mysql_format(Database, DB_Query, sizeof(DB_Query), "SELECT * FROM `PLAYERS` WHERE `USERNAME` = '%e' LIMIT 1", pInfo[playerid][Name]);
	mysql_tquery(Database, DB_Query, "OnPlayerDataCheck", "ii", playerid, Corrupt_Check[playerid]);
	return 1;
}

public OnPlayerDisconnect(playerid, reason)
{	
	Corrupt_Check[playerid]++;

	new DB_Query[256];
	//Running a query to save the player's data using the stored stuff.
	mysql_format(Database, DB_Query, sizeof(DB_Query), "UPDATE `PLAYERS` SET `SCORE` = %d, `CASH` = %d, `KILLS` = %d, `DEATHS` = %d WHERE `ID` = %d LIMIT 1", 
	pInfo[playerid][Score], pInfo[playerid][Cash], pInfo[playerid][Kills], pInfo[playerid][Deaths], pInfo[playerid][ID]);
	mysql_tquery(Database, DB_Query);

	if(cache_is_valid(pInfo[playerid][Player_Cache])) //Checking if the player's cache ID is valid.
	{
		cache_delete(pInfo[playerid][Player_Cache]); // Deleting the cache.
		pInfo[playerid][Player_Cache] = MYSQL_INVALID_CACHE; // Setting the stored player Cache as invalid.
	}
	
	pInfo[playerid][LoggedIn] = false;
	print("OnPlayerDisconnect has been called."); // Sending message once OnPlayerDisconnect is called.
	return 1;
}

public OnPlayerSpawn(playerid)
{
	SetPlayerSkin(playerid, pInfo[playerid][pSkin]);
}


public OnPlayerDeath(playerid, killerid, reason)
{
   // Increase death if self-death or got killed!
    pInfo[playerid][Deaths]++;

	if(killerid != INVALID_PLAYER_ID) // Checking if the killer of the player is valid.
	{
		//Increasing the kills of the killer and the deaths of the player.
	    pInfo[killerid][Kills]++;
	}
	return 1;
}

public OnPlayerRequestSpawn(playerid)
{
	if(pInfo[playerid][LoggedIn] == false) return 0; // Ignoring the request incase player isn't logged in.
	return 1;
}

public OnDialogResponse(playerid, dialogid, response, listitem, inputtext[])
{
	switch (dialogid)
	{
		case DIALOG_LOGIN:
		{
			
			if(!response) return Kick(playerid);

			new Salted_Key[65];
			SHA256_PassHash(inputtext, pInfo[playerid][Salt], Salted_Key, 65);

			if(strcmp(Salted_Key, pInfo[playerid][Password]) == 0)
			{
				// Now, password should be correct as well as the strings
				// Matched with each other, so nothing is wrong until now.
				
				// We will activate the cache of player to make use of it e.g.
				// Retrieve their data.
				
				cache_set_active(pInfo[playerid][Player_Cache]);

				// Okay, we are retrieving the information now..
            	cache_get_value_int(0, "ID", pInfo[playerid][ID]);
            	
        		cache_get_value_int(0, "KILLS", pInfo[playerid][Kills]);
        		cache_get_value_int(0, "DEATHS", pInfo[playerid][Deaths]);

        		cache_get_value_int(0, "SCORE", pInfo[playerid][Score]);
        		cache_get_value_int(0, "CASH", pInfo[playerid][Cash]);
        		cache_get_value_int(0, "PSKIN", pInfo[playerid][Score]);

        		SetPlayerScore(playerid, pInfo[playerid][Score]);
        		
        		ResetPlayerMoney(playerid);
        		GivePlayerMoney(playerid, pInfo[playerid][Cash]);

				// So, we have successfully retrieved data? Now deactivating the cache.
				
				cache_delete(pInfo[playerid][Player_Cache]);
				pInfo[playerid][Player_Cache] = MYSQL_INVALID_CACHE;

				pInfo[playerid][LoggedIn] = true;
				SendClientMessage(playerid, 0x00FF00FF, "Logged in to the account.");
			}
			else
			{
			    new String[150];
					
				pInfo[playerid][PasswordFails] += 1;
				printf("%s has been failed to login. (%d)", pInfo[playerid][Name], pInfo[playerid][PasswordFails]);
				// Printing the message that someone has failed to login to his account.

				if (pInfo[playerid][PasswordFails] >= 3) // If the fails exceeded the limit we kick the player.
				{
					format(String, sizeof(String), "%s has been kicked Reason: {FF0000}(%d/3) Login fails.", pInfo[playerid][Name], pInfo[playerid][PasswordFails]);
					SendClientMessageToAll(0x969696FF, String);
					Kick(playerid);
				}
				else
				{
					// If the player didn't exceed the limits we send him a message that the password is wrong.
					format(String, sizeof(String), "Wrong password, you have %d out of 3 tries.", pInfo[playerid][PasswordFails]);
					SendClientMessage(playerid, 0xFF0000FF, String);
					
              		format(String, sizeof(String), "{FFFFFF}Welcome back, %s.\n\n{0099FF}This account is already registered.\n\
            		{0099FF}Please, input your password below to proceed to the game.\n\n", pInfo[playerid][Name]);
            		ShowPlayerDialog(playerid, DIALOG_LOGIN, DIALOG_STYLE_PASSWORD, "Login System", String, "Login", "Leave");
				}
			}
		}
		case DIALOG_REGISTER:
		{
			if(!response) return Kick(playerid);
			if(strlen(inputtext) <= 5 || strlen(inputtext) > 60)
			{
			    // If the password length is less than or equal to 5 and more than 60
			    // It repeats the process and shows error message as seen below.
			    
		    	SendClientMessage(playerid, 0x969696FF, "Invalid password length, should be 5 - 60.");

				new String[150];
		    	
    	    	format(String, sizeof(String), "{FFFFFF}Welcome %s.\n\n{0099FF}This account is not registered.\n\
    	     	{0099FF}Please, input your password below to proceed.\n\n", pInfo[playerid][Name]);
	        	ShowPlayerDialog(playerid, DIALOG_REGISTER, DIALOG_STYLE_PASSWORD, "Registration System", String, "Register", "Leave");
				
			}
			else
			{
				
    			// Salting the player's password using SHA256 for a better security.
			
                for (new i = 0; i < 10; i++)
                {
                    pInfo[playerid][Salt][i] = random(79) + 47;
	    		}
	    		
	    		pInfo[playerid][Salt][10] = 0;
		    	SHA256_PassHash(inputtext, pInfo[playerid][Salt], pInfo[playerid][Password], 65);

                // Show Skin Selection
                SendClientMessage(playerid, 0x00FF00FF, "Please select a skin!");
                ShowModelSelectionMenu(playerid, skinlist, "Pick A Skin");
		     }
		}
	}
	return 1;
}

forward OnPlayerDataCheck(playerid, corrupt_check);
public OnPlayerDataCheck(playerid, corrupt_check)
{
	if (corrupt_check != Corrupt_Check[playerid]) return Kick(playerid);
	// You'd have asked already what's corrput_check and how it'd benefit me?
	// Well basically MySQL query takes long, incase a player leaves while its not proceeded
	// With ID 1 for example, then another player comes as ID 1 it'll basically corrupt the data
	// So, once the query is done, the player will have the wrong data assigned for himself.

	new String[150];
	
	if(cache_num_rows() > 0)
	{
		// If the player exists, everything is okay and nothing is wrongly detected
		// The player's password and Saltion key gets stored as seen below
		// So we won't have to get a headache just to match player's password.
		
		cache_get_value(0, "PASSWORD", pInfo[playerid][Password], 65);
		cache_get_value(0, "SALT", pInfo[playerid][Salt], 11);

		pInfo[playerid][Player_Cache] = cache_save();
		// ^ Storing the cache ID of the player for further use later.

		format(String, sizeof(String), "{FFFFFF}Welcome back, %s.\n\n{0099FF}This account is already registered.\n\
		{0099FF}Please, input your password below to proceed to the game.\n\n", pInfo[playerid][Name]);
		ShowPlayerDialog(playerid, DIALOG_LOGIN, DIALOG_STYLE_PASSWORD, "Login System", String, "Login", "Leave");
	}
	else
	{
		format(String, sizeof(String), "{FFFFFF}Welcome %s.\n\n{0099FF}This account is not registered.\n\
		{0099FF}Please, input your password below to proceed to the game.\n\n", pInfo[playerid][Name]);
		ShowPlayerDialog(playerid, DIALOG_REGISTER, DIALOG_STYLE_PASSWORD, "Registration System", String, "Register", "Leave");
	}
	return 1;
}

//==============================================================================

forward OnPlayerRegister(playerid);
public OnPlayerRegister(playerid)
{
    // This gets called only when the player registers a new account.
    SendClientMessage(playerid, 0x00FF00FF, "You are now registered and has been logged in.");
 
   
   // Player Logged in!
             pInfo[playerid][LoggedIn] = true;

	//SetSpawnInfo(playerid, 0, , 2098.5088,1159.1156,11.6484, 65.2418, 0, 0, 0, 0, 0, 0 );
 	//SpawnPlayer(playerid);
    return 1;
}


public OnPlayerModelSelection(playerid, response, listid, modelid)
{
    if(listid == skinlist)
    {
        if(response)
        {
             SetPlayerSkin(playerid, modelid); // set player skin
             pInfo[playerid][pSkin] = modelid;

		    	new DB_Query[225];

		    	mysql_format(Database, DB_Query, sizeof(DB_Query), "INSERT INTO `PLAYERS` (`USERNAME`, `PASSWORD`, `SALT`, `SCORE`, `KILLS`, `CASH`, `DEATHS`, `PSKIN`)\
		    	VALUES ('%e', '%s', '%e', '20', '0', '5000', '0', %d)", pInfo[playerid][Name], pInfo[playerid][Password], pInfo[playerid][Salt],pInfo[playerid][pSkin]);

		     	mysql_tquery(Database, DB_Query, "OnPlayerRegister", "d", playerid);
             
     
        }
        else if(!response && !pInfo[playerid][LoggedIn]) 
        {
            SendClientMessage(playerid, 0x00FF00FF, "Please select a skin!");
            ShowModelSelectionMenu(playerid, skinlist, "Pick A Skin");
        }
        return 1;
    }
    return 1;
}

//==============================================================================


// End of script //