#pragma pack(1)

#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
#include <string.h>
#include <ctype.h>
#include <time.h> //Used for the 'Random' function, which uses the computers clock//
#include <assert.h>

FILE *FilePointer;
#define USED_FILE "MemberDetails.txt"
#define PREMIUM 650 //Premium is anuually £650//
#define STANDARD 500 //Standard is £500//
#define JUNIOR 250 //Junior is £250//
#define MAX_NAME_LEN 21
#define POUND_SIGN 156

#define WELCOME "Highbridge Leisure Centre"

void PromptAndAddRecords();
void MaintainRecords();
void DisplayRecords(struct MEMBER MemberDetails);
void Pause();
void DisplayAllRecords(struct MEMBER MemberDetails);
int DisplayRecordsMenu();
void SearchMembershipType();
int DisplayMenu();
void SearchRecordByName();
int MaintainRecordsMenu();
void StatisticsMembershipType();
void StatisticsMenu(struct MEMBER MemberDetails);
int DisplayStatisticsMenu();
void AnnualFeesStatistics();
void MainMenu(struct MEMBER MemberDetails);
void SearchByID();
float GetValidatedFloat();
char *GetsValidatedString(String, MinLength, MaxLength);
int ValidateInteger(Input, Min, Max);
void ExpiringMembers();


struct MEMBER
{
	char MemberID[6];
	char FirstName[MAX_NAME_LEN];
	char Surname[MAX_NAME_LEN];
    char MembershipType[9];
	int MembershipExpiryMonth;
};

int main()
{
	struct MEMBER MemberDetails = {'\0','\0','\0','\0','\0',0};
	MainMenu(MemberDetails);
}

void MainMenu(struct MEMBER MemberDetails) //This is the main menu for the program. All main functions will return to here//
{
	int MenuChoice = 0;
	do{
		MenuChoice = DisplayMenu();
		    switch(MenuChoice)
			{
		case 1 :
			PromptAndAddRecords();
			break;
		case 2 :
           DisplayRecords(MemberDetails);
            break;
		case 3 :
            Pause();
            break;
			}
	}while(MenuChoice !=4);
}


int DisplayMenu() //The display of the main menu//
{
	int MenuInput = 0;

	system("cls");
	printf(WELCOME);
	printf("\n\n1. Add a new record"
			"\n2. Display Choosen Records"
			"\n3. Exit The Program...");
	printf("\n\nPlease enter your input ");

	MenuInput = ValidateInteger(MenuInput, 1, 3);

	fflush(stdin);
	return(MenuInput);

}


void DisplayRecords(struct MEMBER MemberDetails)
{
	int MenuChoice = 0;

	do{
		MenuChoice = DisplayRecordsMenu();
		    switch(MenuChoice)
			{
		case 1 :
			DisplayAllRecords(MemberDetails);
			break;
		case 2 :
			SearchRecordByName();
            break;
		case 3 :
			SearchMembershipType();
			break;
		case 4 :
			StatisticsMenu(MemberDetails);
		case 5 :
			SearchByID();
		case 6 :
			ExpiringMembers();
			break;
		case 7 :
			MainMenu(MemberDetails);
			break;
		case 8 :
			Pause();
			break;
         		}
	}while(MenuChoice !=5);
}

int DisplayRecordsMenu()
{
	int MenuInput = 0;

	system("cls");
	printf("Display Records");
	printf("\n\n1. Display All"
		"\n2. Search By Name"
		"\n3. Display by Membership Type"
		"\n4. Statistics"
		"\n5. Search by ID"
		"\n6. Expiring Members"
		"\n7. Return to Last Menu"
		"\n8. Exit Program");
	printf("\n\nPlease enter your input ");

	MenuInput = ValidateInteger(MenuInput, 1, 8);

	return(MenuInput);
}


void PromptAndAddRecords() //To add a new record//
{
	struct MEMBER MemberDetails = {'\0','\0','\0','\0',0};
	FILE *FilePointer;
	int Length;
	int Repeat = 0;
	int RandomNumber = 0;
	int MemberTypeChoice = 0;


	system("cls");
	printf("Add new record\n");
	srand (time(NULL) ); //Setting the program to gain the time of the system//

	MemberDetails.MemberID[Repeat] = rand() %26+97;

	for(Repeat = 1; Repeat < 5; Repeat++)
	{
		do
		{
			RandomNumber = rand() % 10;
		}while((RandomNumber < 0) && (RandomNumber > 9));

		MemberDetails.MemberID[Repeat] = RandomNumber + 48;
	}

	printf("-------------------------------------");
	printf("\n\nSet ID is : %s\n", MemberDetails.MemberID);
	printf("\nWhat is the first name?: \t\t");
	do
	{
		scanf("%s", MemberDetails.FirstName);
		Length = strlen(MemberDetails.FirstName);
		if(Length > MAX_NAME_LEN)
		{
			printf("\nError please enter a smaller length\n");
		}
	} while(Length > MAX_NAME_LEN);

	printf("\nWhat is the Surname?:   \t\t");
	do
	{
		scanf("%s", MemberDetails.Surname);
		Length = strlen(MemberDetails.Surname);
		if(Length > MAX_NAME_LEN)
		{
			printf("\nError please enter a smaller length\n");
		}
	}while(Length > MAX_NAME_LEN);

    printf("\n1. Premium\n");
    printf("\n2. Standard\n");
    printf("\n3. Junior\n\n");
	printf("Please select choice...\n\n");
	MemberTypeChoice = ValidateInteger(MemberTypeChoice, 1, 3);
	if(MemberTypeChoice == 1)
	{
		printf("                         \t\tPremium");

	}
	if(MemberTypeChoice == 2)
	{
		printf("                         \t\tStandard");

	}
	if(MemberTypeChoice == 3)
	{
		printf("                         \t\tJunior");

	}

	switch(MemberTypeChoice)
	{
	case 1:
		strcpy(MemberDetails.MembershipType, "Premium");
		break;
	case 2:
		strcpy(MemberDetails.MembershipType, "Standard");
		break;
	case 3:
		strcpy(MemberDetails.MembershipType, "Junior");
		break;
	}

	printf("\n\nWhat is the expiry month?\n");

	scanf("                         \t\t%d", &MemberDetails.MembershipExpiryMonth);

	system("cls");
	printf("Add new record\n");
	printf("\n  First Name:\t\t  %s\n     Surname:\t\t  %s\n Customer ID: \t\t  %s\n  Membership:\t\t  %s\n", MemberDetails.FirstName, MemberDetails.Surname, MemberDetails.MemberID, MemberDetails.MembershipType);

	if(MemberDetails.MembershipExpiryMonth == 1)
	{
		printf("Expiry Month: \t\t  January");
	}
	if(MemberDetails.MembershipExpiryMonth == 2)
	{
		printf("Expiry Month: \t\t  Febuary");
	}
	if(MemberDetails.MembershipExpiryMonth == 3)
	{
		printf("Expiry Month: \t\t  March");
	}
	if(MemberDetails.MembershipExpiryMonth == 4)
	{
		printf("Expiry Month: \t\t  April");
	}
	if(MemberDetails.MembershipExpiryMonth == 5)
	{
		printf("Expiry Month: \t\t  May");
	}
	if(MemberDetails.MembershipExpiryMonth == 6)
	{
		printf("Expiry Month: \t\t  June");
	}
	if(MemberDetails.MembershipExpiryMonth == 7)
	{
		printf("Expiry Month: \t\t  July");
	}
	if(MemberDetails.MembershipExpiryMonth == 8)
	{
		printf("Expiry Month: \t\t  August");
	}
	if(MemberDetails.MembershipExpiryMonth == 9)
	{
		printf("Expiry Month: \t\t  September");
	}
	if(MemberDetails.MembershipExpiryMonth == 10)
	{
		printf("Expiry Month: \t\t  October");
	}
	if(MemberDetails.MembershipExpiryMonth == 11)
	{
		printf("Expiry Month: \t\t  November");
	}
	if(MemberDetails.MembershipExpiryMonth == 12)
	{
		printf("Expiry Month: \t\t  December");
	}



	printf("\n\nPress any key to continue...");
	getch();

	FilePointer=fopen(USED_FILE, "a");
	fwrite(&MemberDetails, sizeof(MemberDetails), 1, FilePointer);

	fclose(FilePointer); //Closes the file//
    MainMenu(MemberDetails);
}

void StatisticsMembershipType()
{
	FILE *FilePointer; //The pointer for the saved file//

	struct MEMBER MemberDetails; //The main structure of the file output//
	char Search[20]; //The text or integers that will be searched for//
	int TotRec = 0; //Total records found//

	system("cls"); //Clears screen//
	FilePointer=fopen(USED_FILE, "r"); //Reads the MemberDetails File//
	printf("****Display Statistics****\n");
	printf("Premium, Standard or Junior?\n");
	scanf("%s", &Search);

    {
		fread(&MemberDetails, sizeof(MemberDetails), 1, FilePointer); //buffer, "%s", FilePointer);


		 if(!feof(FilePointer))
		 {
			  if((stricmp(MemberDetails.MembershipType, Search))==0)
			{
				 printf("\n\nName: %s\n", MemberDetails.FirstName);
				 printf("\nMember Surname: %s\n", MemberDetails.Surname);
				 printf("\nMember ID: %s\n", MemberDetails.MemberID);
				 printf("\nMember Membership expiry month: %d\n", MemberDetails.MembershipExpiryMonth);

				 TotRec++;
			}
		 }
	}
        if(TotRec==0)
			 printf("\n\n No Data Found ");
        else
            printf("\n\n===Total %d Record Found===", TotRec);

	fclose(FilePointer);
	getch();
	MainMenu(MemberDetails);
}


void SearchRecordByName()
{
	FILE *FilePointer;

	struct MEMBER MemberDetails;
	char Search[20];
	char buffer[255]; //Buffer with a maximum of characters of searching//
	int TotRec=0;

	system("cls");
	FilePointer=fopen(USED_FILE, "r"); //To read the MemberDetails file//
	printf("****Display Specific Records****\n");
	printf("Enter the First Name...\n");
	scanf("%s", Search);

    {
	   fread(&MemberDetails, sizeof(MemberDetails), 1, FilePointer); //buffer, "%s", FilePointer);


	   if(!feof(FilePointer))
	   {
			if((stricmp(MemberDetails.FirstName, Search))==0)
			{
				printf("\n\nName: %s\n", MemberDetails.FirstName);
				printf("\nMember Surname: %s\n", MemberDetails.Surname);
			    printf("\nMember ID: %s\n", MemberDetails.MemberID);
				printf("\nMember Membership expiry month: %d\n", MemberDetails.MembershipExpiryMonth);

			    TotRec++;
			}
	   }
    }
        if(TotRec==0)
            printf("\n\n No Data Found ");
        else
            printf("\n\n===Total %d Record Found===", TotRec);

	fclose(FilePointer);
	getch();
	MainMenu(MemberDetails);
}

void StatisticsMenu(struct MEMBER MemberDetails)
{
	int MenuChoice = 0;
	do{
		MenuChoice = DisplayStatisticsMenu();
		    switch(MenuChoice)
			{
		case 1 :
			StatisticsMembershipType();
			break;
		case 2 :
			 AnnualFeesStatistics();
			 break;
        case 3 :
			 MainMenu(MemberDetails);
		     break;
		case 4 :
            Pause();
            break;
			}
	}while(MenuChoice !=5);

}
void AnnualFeesStatistics()
 {
	FILE *FilePointer;

	struct MEMBER MemberDetails;
	char Search[20];
	int TotRec=0;
	int TotalFee;
	int Choice;
	int Premium = 0;
	int Standard = 0;
	int Junior = 0;


	system("cls");
	FilePointer=fopen(USED_FILE, "r");
	printf("****Display Total Fees****\n");
	printf("Premium, Standard or Junior?\n");

	do
	{
		fread(&MemberDetails, sizeof(MemberDetails), 1, FilePointer); //buffer, "%s", FilePointer);


		if(!feof(FilePointer))
		{
			if((stricmp(MemberDetails.MembershipType, "Premium")) == 0)
			{
				Premium = Premium + 1;
			}
			else if((stricmp(MemberDetails.MembershipType, "Standard")) == 0)
			{
				Standard = Standard + 1;
			}
			else if((stricmp(MemberDetails.MembershipType, "Junior")) == 0)
			{
				Junior = Junior + 1;
			}
		}
	} while(!feof(FilePointer));


	if((Premium == 0) && (Standard == 0) && (Junior == 0))
			printf("\n\n No Data Found for %s ", Search);
	else
	{
		TotalFee = (Premium * PREMIUM) + (Standard * STANDARD) + (Junior * JUNIOR);

		printf("\n(%d Members * %d Pounds)", Premium, PREMIUM);
		printf("\n(%d Members * %d Pounds)", Standard, STANDARD);
		printf("\n(%d Members * %d Pounds)", Junior, JUNIOR);
		printf("\n\n=== The Total Annual Fee is: %c%d===",POUND_SIGN, TotalFee);
	}

		fclose(FilePointer);
		getch();
	MainMenu(MemberDetails); //Go back to the main menu//
}


void SearchByID()
{
	FILE *FilePointer;

    struct MEMBER MemberDetails;
    char Search[20];
	char buffer[255];
    int TotRec=0;

    system("cls");
    FilePointer=fopen(USED_FILE, "r");
    printf("****Display by ID****\n");
    printf("Enter the ID...\n\n");
    scanf("%s", &Search);

	do
    {
	   fread(&MemberDetails, sizeof(MemberDetails), 1, FilePointer); //buffer, "%s", FilePointer);


	   if(!feof(FilePointer))
	   {
		   if((stricmp(MemberDetails.MemberID, Search))==0)
			{
				 printf("\n\nName: %s\n", MemberDetails.FirstName);
				 printf("\nMember Surname: %s\n", MemberDetails.Surname);
				 printf("\nMember ID: %s\n", MemberDetails.MemberID);
				 printf("\nMember Membership expiry month: %d\n", MemberDetails.MembershipExpiryMonth);

			     TotRec++;
			}
	   }
	} while(!feof(FilePointer));
        if(TotRec==0)
            printf("\n\n No Data Found ");
        else
            printf("\n\n===Total %d Record Found===", TotRec);

	fclose(FilePointer);
	getch();
	MainMenu(MemberDetails);
}

int DisplayStatisticsMenu()
{
	int MenuInput = 0;

	system("cls");
	printf("Statistics");
	printf("\n\n1. Membership Type Statistics"
		"\n2. Total Annual Fees"
		"\n3. Return to Main Menu"
		"\n4. Exit the Program");
	printf("\n\nPlease enter your input ");

	MenuInput = ValidateInteger(MenuInput, 1, 4);

	return(MenuInput);
}

void ExpiringMembers()
{
	FILE *FilePointer;

    struct MEMBER MemberDetails;
    char Search[20];
	char buffer[255];
    int TotRec=0;
	int Month = 0;

	FilePointer=fopen(USED_FILE, "r"); //To read the MemberDetails file//
	system("cls");
	printf("Expiring Members\n\n");
	printf("Please enter the month (1 - 12)\n");
	Month = ValidateInteger(Month, 1, 12);




    {
	   fread(&MemberDetails, sizeof(MemberDetails), 1, FilePointer); //buffer, "%s", FilePointer);


	   if(!feof(FilePointer))
	   {
		   if((stricmp(MemberDetails.MembershipExpiryMonth, Month))==0)
			{
				printf("\n\nName: %s\n", MemberDetails.FirstName);
				printf("\nMember Surname: %s\n", MemberDetails.Surname);
			    printf("\nMember ID: %s\n", MemberDetails.MemberID);
				TotRec++;
			}
	   }
    }
        if(TotRec==0)
            printf("\n\n No Data Found ");
        else
            printf("\n\n===Total %d Record Found===", TotRec);

	fclose(FilePointer);
	getch();
	MainMenu(MemberDetails);
}

void DisplayAllRecords(struct MEMBER MemberDetails)
{
   int c;

   *FilePointer;

   system("cls");
   printf("DISPLAY ALL MEMBERS\n\n");

   FilePointer=fopen(USED_FILE, "r");

   printf("  Member ID              First Name.       Surname.     MemberShip.  Month.\n");
   printf("----------------------------------------------------------------------------\n\n");
   do
   {
	   fread(&MemberDetails, sizeof(MemberDetails), 1, FilePointer); //buffer, "%s", FilePointer);

	   if(!feof(FilePointer))
	   {
			printf(" %6s ", MemberDetails.MemberID);
			printf(" %21s ", MemberDetails.FirstName);
			printf(" %21s ", MemberDetails.Surname);
			printf(" %9s ", MemberDetails.MembershipType);
     		printf("  %5d \n", MemberDetails.MembershipExpiryMonth);
	   }
		memset(&MemberDetails, '\0', sizeof(MemberDetails));

	}	while(!feof(FilePointer));



   fclose(FilePointer);
   printf("\n\nPress anykey to return...");
   getch();
   MainMenu(MemberDetails);
}


void SearchMembershipType()
{
	FILE *FilePointer;

    struct MEMBER MemberDetails;
    char Search[20];
	char buffer[255];
    int TotRec=0;

    system("cls");
    FilePointer=fopen(USED_FILE, "r");
    printf("****Display Specific Records****\n");
    printf("Enter the Membership Type...\nPremium \nStandard \nJunior\n\n");
    scanf("%s", &Search);
    while(!feof(FilePointer))

   {
	   fread(&MemberDetails, sizeof(MemberDetails), 1, FilePointer); //buffer, "%s", FilePointer);


	   if(!feof(FilePointer))
	   {
        if((stricmp(MemberDetails.MembershipType, Search))==0)
        {
            printf("\n\nName: %s\n", MemberDetails.FirstName);
            printf("\nMember Surname: %s\n", MemberDetails.Surname);
            printf("\nMember ID: %s\n", MemberDetails.MemberID);
            printf("\nMember Membership expiry month: %d\n", MemberDetails.MembershipExpiryMonth);

            TotRec++;
		}
	   }
    }
        if(TotRec==0)
            printf("\n\n No Data Found ");
        else
            printf("\n\n===Total %d Record Found===", TotRec);
        fclose(FilePointer);
        getch();
        MainMenu(MemberDetails);
}

char *GetsValidatedString(char String[], int MinLength, int MaxLength)
{
	int Count = 0;
	char Input[260];

	do
	{
		gets(Input);

		//Set input into a limited Max and Min
		if((strlen(Input) < MinLength) || (strlen(Input) > MaxLength))
		{
			printf("Invalid input! please try again. Length: (%d - %d): ", MinLength, MaxLength);
		}

	} while ((strlen(Input) < MinLength) || (strlen(Input) > MaxLength));

	//tolower - Sets character to lower case
	for(Count = 0; Input[Count]; Count++)
	{
		Input[Count] = tolower(Input[Count]);
	}

	strcpy(String, Input);
	return(String);
}

int ValidateInteger(int Input, int Min, int Max)
{
	do
	{
		scanf("%d", &Input);
		fflush(stdin);

		if((Input < Min) || (Input > Max))
		{
			printf("\n\nInvalid input, must be between %d and %d \n\n", Min, Max);
		}

	} while((Input < Min) || (Input > Max));

	return(Input);
}



void Pause()
{
	system("cls");
	printf("Press any key to continue...");
	getch();
}