The mini-project “Hospital Management System Project” is a console application using the C programming language. This project compiles in Code Blocks with the GCC compiler. In this console application, you can do basic Patient Record tasks like adding the Patient info, view the added Patient, search the Patient, ..etc.
This application is based on file handling in C, where I have used a file-related function like fopen, fread, fwrite, ..etc. Good thing is that the “Hospital Management System Project” is password-protected, so only authorized persons are able to log in to this application.
Also to increase the readability, I have broken the application into different functions. Each function of the project extensively uses file handing function, so it is also a great project to understand file handling in C.
Note: Don’t copy and paste the code for your project. Use the code to learn and do the project yourself.
Functions used in “Hospital Management System Project in C”:
isFileExists():
This function verifies that a file has been created or not. If the file exists, the function return 1 otherwise returns 0.
//Check file exist or not
int isFileExists(const char *path)
{
// Try to open file
FILE *fp = fopen(path, "rb");
int status = 0;
// If file does not exists
if (fp != NULL)
{
status = 1;
// File exists hence close file
fclose(fp);
}
return status;
}
init():
This function creates the file if not exist and copies the default password (“aticleworld”) in file header structure.
void init()
{
FILE *fp = NULL;
int status = 0;
const char defaultUsername[] ="aticleworld";
const char defaultPassword[] ="aticleworld";
sFileHeader fileHeaderInfo = {0};
status = isFileExists(FILE_NAME);
if(!status)
{
//create the binary file
fp = fopen(FILE_NAME,"wb");
if(fp != NULL)
{
//Copy default password
strncpy(fileHeaderInfo.password,defaultPassword,sizeof(defaultPassword));
strncpy(fileHeaderInfo.username,defaultUsername,sizeof(defaultUsername));
fwrite(&fileHeaderInfo,FILE_HEADER_SIZE, 1, fp);
fclose(fp);
}
}
}
printMessageCenter():
This function prints the message in the middle of the head massage. I have passed the message in this function as per the operation.
//Align the message
void printMessageCenter(const char* message)
{
int len =0;
int pos = 0;
//calculate how many space need to print
len = (78 - strlen(message))/2;
printf("\t\t\t");
for(pos =0 ; pos < len ; pos++)
{
//print space
printf(" ");
}
//print message
printf("%s",message);
}
headMessage():
It prints the message on the top of the console and prints the message as per operation.
//Head message
void headMessage(const char *message)
{
system("cls");
printf("\t\t\t###########################################################################");
printf("\n\t\t\t############ ############");
printf("\n\t\t\t############ Patient Record Management System Project in C ############");
printf("\n\t\t\t############ ############");
printf("\n\t\t\t###########################################################################");
printf("\n\t\t\t---------------------------------------------------------------------------\n");
printMessageCenter(message);
printf("\n\t\t\t----------------------------------------------------------------------------");
}
welcomeMessage():
This function displays the first welcomes screen of the “Hospital Management System Project in C” and asks the user to press any key to access the library application.
//Display message
void welcomeMessage()
{
headMessage("www.aticleworld.com");
printf("\n\n\n\n\n");
printf("\n\t\t\t **-**-**-**-**-**-**-**-**-**-**-**-**-**-**-**-**-**-**\n");
printf("\n\t\t\t =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=");
printf("\n\t\t\t = WELCOME =");
printf("\n\t\t\t = TO =");
printf("\n\t\t\t = Patient Record =");
printf("\n\t\t\t = MANAGEMENT =");
printf("\n\t\t\t = SYSTEM =");
printf("\n\t\t\t =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=");
printf("\n\t\t\t **-**-**-**-**-**-**-**-**-**-**-**-**-**-**-**-**-**-**\n");
printf("\n\n\n\t\t\t Enter any key to continue.....");
getchar();
}
isNameValid():
It validates the user name, author name ..etc. I have permitted this function to take the space in names.
//Validate name
int isNameValid(const char *name)
{
int validName = 1;
int len = 0;
int index = 0;
len = strlen(name);
for(index =0; index <len ; ++index)
{
if(!(isalpha(name[index])) && (name[index] != '\n') && (name[index] != ' '))
{
validName = 0;
break;
}
}
return validName;
}
isValidDate():
This function reads the date in the format of dd/mm/yyyy also validates the entered date.
int IsLeapYear(int year)
{
return (((year % 4 == 0) &&
(year % 100 != 0)) ||
(year % 400 == 0));
}
// returns 1 if given date is valid.
int isValidDate(Date *validDate)
{
//check range of year,month and day
if (validDate->yyyy > MAX_YR ||
validDate->yyyy < MIN_YR)
return 0;
if (validDate->mm < 1 || validDate->mm > 12)
return 0;
if (validDate->dd < 1 || validDate->dd > 31)
return 0;
//Handle feb days in leap year
if (validDate->mm == 2)
{
if (IsLeapYear(validDate->yyyy))
return (validDate->dd <= 29);
else
return (validDate->dd <= 28);
}
//handle months which has only 30 days
if (validDate->mm == 4 || validDate->mm == 6 ||
validDate->mm == 9 || validDate->mm == 11)
return (validDate->dd <= 30);
return 1;
}
menu():
This function displays the library menu and asks the user to select the option. If the user selects 0, then the application will close.
void menu()
{
int choice = 0;
do
{
headMessage("MAIN MENU");
printf("\n\n\n\t\t\t1.Add New Patient Record");
printf("\n\t\t\t2.Search Patient Record");
printf("\n\t\t\t3.View Patient Record");
printf("\n\t\t\t4.Delete Patient Record");
printf("\n\t\t\t5.Update Password");
printf("\n\t\t\t0.Exit");
printf("\n\n\n\t\t\tEnter choice => ");
scanf("%d",&choice);
switch(choice)
{
case 1:
addPatientInDataBase();
break;
case 2:
searchPatient();
break;
case 3:
viewPatient();
break;
case 4:
deletePatient();
break;
case 5:
updateCredential();
break;
case 0:
printf("\n\n\n\t\t\t\tThank you!!!\n\n\n\n\n");
exit(1);
break;
default:
printf("\n\n\n\t\t\tINVALID INPUT!!! Try again...");
} //Switch Ended
}
while(choice!=0); //Loop Ended
}
addPatientInDataBase()
This function opens the binary file in append mode and writes the patient information like name, admit date, address ..etc.
void addPatientInDataBase()
{
s_PatientInfo addPatientInfoInDataBase = {0};
FILE *fp = NULL;
int status = 0;
fp = fopen(FILE_NAME,"ab+");
if(fp == NULL)
{
printf("File is not opened\n");
exit(1);
}
headMessage("ADD NEW PATIENT");
printf("\n\n\t\t\tENTER YOUR DETAILS BELOW:");
printf("\n\t\t\t---------------------------------------------------------------------------\n");
printf("\n\t\t\tPatient ID = ");
fflush(stdin);
scanf("%u",&addPatientInfoInDataBase.patientRecordId);
do
{
printf("\n\t\t\tPatient Father Name = ");
fflush(stdin);
fgetsRemovedNewLine(addPatientInfoInDataBase.patientFatherName,MAX_FATHER_NAME,stdin);
status = isNameValid(addPatientInfoInDataBase.patientFatherName);
if (!status)
{
printf("\n\t\t\tName contain invalid character. Please enter again.");
}
}
while(!status);
do
{
printf("\n\t\t\tPatient Name = ");
fflush(stdin);
fgetsRemovedNewLine(addPatientInfoInDataBase.patientName,MAX_PATIENT_NAME,stdin);
status = isNameValid(addPatientInfoInDataBase.patientName);
if (!status)
{
printf("\n\t\t\tName contain invalid character. Please enter again.");
}
}
while(!status);
do
{
printf("\n\t\t\tPatient Address = ");
fflush(stdin);
fgetsRemovedNewLine(addPatientInfoInDataBase.patientAddr,MAX_FATHER_NAME,stdin);
status = isNameValid(addPatientInfoInDataBase.patientAddr);
if (!status)
{
printf("\n\t\t\tName contain invalid character. Please enter again.");
}
}
while(!status);
do
{
printf("\n\t\t\tPatient Disease = ");
fflush(stdin);
fgetsRemovedNewLine(addPatientInfoInDataBase.patientDisease,MAX_PATIENT_DISEASE,stdin);
status = isNameValid(addPatientInfoInDataBase.patientDisease);
if (!status)
{
printf("\n\t\t\tName contain invalid character. Please enter again.");
}
}
while(!status);
printf("\n\t\t\tPatient Total Charge = ");
fflush(stdin);
scanf("%f",&addPatientInfoInDataBase.patientTotalFees);
printf("\n\t\t\tPatient Initial Deposit = ");
fflush(stdin);
scanf("%f",&addPatientInfoInDataBase.patientDepositMoney);
do
{
printf("\n\t\t\tPatient Admit Date:- ");
//get date year,month and day from user
printf("\n\t\t\tEnter date in format (dd/mm/yyyy): ");
scanf("%d/%d/%d",&addPatientInfoInDataBase.patientAdmitDate.dd,&addPatientInfoInDataBase.patientAdmitDate.mm,&addPatientInfoInDataBase.patientAdmitDate.yyyy);
//check date validity
status = isValidDate(&addPatientInfoInDataBase.patientAdmitDate);
if (!status)
{
printf("\n\t\t\tPlease enter a valid date.\n");
}
}
while(!status);
fwrite(&addPatientInfoInDataBase,sizeof(addPatientInfoInDataBase), 1, fp);
fclose(fp);
}
searchPatient()
This function opens the binary file in reading mode and asks the user to enter the patient id number which wants to search. If the patient info is not available on the list, it shows the message patient not find in records.
void searchPatient()
{
int found = 0;
int patientId =0;
s_PatientInfo addPatientInfoInDataBase = {0};
FILE *fp = NULL;
fp = fopen(FILE_NAME,"rb");
if(fp == NULL)
{
printf("\n\t\t\tFile is not opened\n");
exit(1);
}
headMessage("SEARCH PATIENT");
//put the control on patient detail
if (fseek(fp,FILE_HEADER_SIZE,SEEK_SET) != 0)
{
fclose(fp);
printf("\n\t\t\tFacing issue while reading file\n");
exit(1);
}
printf("\n\n\t\t\tEnter patient ID NO to search:");
fflush(stdin);
scanf("%u",&patientId);
while (fread (&addPatientInfoInDataBase, sizeof(addPatientInfoInDataBase), 1, fp))
{
if(addPatientInfoInDataBase.patientRecordId == patientId)
{
found = 1;
break;
}
}
if(found)
{
float remainingAmount = (addPatientInfoInDataBase.patientTotalFees >= addPatientInfoInDataBase.patientDepositMoney)?
(addPatientInfoInDataBase.patientTotalFees - addPatientInfoInDataBase.patientDepositMoney):(float)(0.0);
printf("\n\t\t\tPatient id = %d\n",addPatientInfoInDataBase.patientRecordId);
printf("\n\t\t\tPatient name = %s\n",addPatientInfoInDataBase.patientName);
printf("\n\t\t\tPatient Disease = %s\n",addPatientInfoInDataBase.patientDisease);
printf("\t\t\tPatient Total Charge = %f\n",addPatientInfoInDataBase.patientTotalFees);
printf("\t\t\tPatient Deposit Amount = %f\n",addPatientInfoInDataBase.patientDepositMoney);
printf("\t\t\tPatient Remaining Amount = %f\n",remainingAmount);
printf("\t\t\tPatient Father Name = %s\n",addPatientInfoInDataBase.patientFatherName);
printf("\t\t\tPatient Address = %s\n",addPatientInfoInDataBase.patientAddr);
printf("\t\t\tPatient Admited Date(day/month/year) = (%d/%d/%d)\n",addPatientInfoInDataBase.patientAdmitDate.dd,
addPatientInfoInDataBase.patientAdmitDate.mm, addPatientInfoInDataBase.patientAdmitDate.yyyy);
}
else
{
printf("\n\t\t\tNo Record");
}
fclose(fp);
printf("\n\n\n\t\t\tPress any key to go to main menu.....");
fflush(stdin);
getchar();
}
viewPatient()
This function is used to view the information of all patients whose information is saved in the database.
void viewPatient()
{
int found = 0;
s_PatientInfo addPatientInfoInDataBase = {0};
FILE *fp = NULL;
unsigned int countPatient = 1;
headMessage("VIEW PATIENT DETAILS");
fp = fopen(FILE_NAME,"rb");
if(fp == NULL)
{
printf("File is not opened\n");
exit(1);
}
if (fseek(fp,FILE_HEADER_SIZE,SEEK_SET) != 0)
{
fclose(fp);
printf("Facing issue while reading file\n");
exit(1);
}
//Print patient count
printf("\n\t\t\tPatient Count = %d\n\n",countPatient);
while (fread (&addPatientInfoInDataBase, sizeof(addPatientInfoInDataBase), 1, fp))
{
float remainingAmount = (addPatientInfoInDataBase.patientTotalFees >= addPatientInfoInDataBase.patientDepositMoney)?
(addPatientInfoInDataBase.patientTotalFees - addPatientInfoInDataBase.patientDepositMoney):(float)(0.0);
printf("\t\t\tPatient id = %u\n",addPatientInfoInDataBase.patientRecordId);
printf("\t\t\tPatient Name = %s\n",addPatientInfoInDataBase.patientName);
printf("\n\t\t\tPatient Disease = %s\n",addPatientInfoInDataBase.patientDisease);
printf("\t\t\tPatient Total Charge = %f\n",addPatientInfoInDataBase.patientTotalFees);
printf("\t\t\tPatient Deposit Amount = %f\n",addPatientInfoInDataBase.patientDepositMoney);
printf("\t\t\tPatient Remaining Amount = %f\n",remainingAmount);
printf("\t\t\tPatient Father Name = %s\n",addPatientInfoInDataBase.patientFatherName);
printf("\t\t\tPatient Address = %s\n",addPatientInfoInDataBase.patientAddr);
printf("\t\t\tPatient Admited Date(day/month/year) = (%d/%d/%d)\n\n",addPatientInfoInDataBase.patientAdmitDate.dd,
addPatientInfoInDataBase.patientAdmitDate.mm, addPatientInfoInDataBase.patientAdmitDate.yyyy);
found = 1;
++countPatient;
}
fclose(fp);
if(!found)
{
printf("\n\t\t\tNo Record");
}
printf("\n\n\t\t\tPress any key to go to main menu.....");
fflush(stdin);
getchar();
}
deletePatient()
This function is used to delete the record of a patient from the database on the basis of patient id.
void deletePatient()
{
int found = 0;
int patientDelete = 0;
sFileHeader fileHeaderInfo = {0};
s_PatientInfo addPatientInfoInDataBase = {0};
FILE *fp = NULL;
FILE *tmpFp = NULL;
headMessage("Delete patient Record Details");
fp = fopen(FILE_NAME,"rb");
if(fp == NULL)
{
printf("File is not opened\n");
exit(1);
}
tmpFp = fopen("tmp.bin","wb");
if(tmpFp == NULL)
{
fclose(fp);
printf("File is not opened\n");
exit(1);
}
fread (&fileHeaderInfo,FILE_HEADER_SIZE, 1, fp);
fwrite(&fileHeaderInfo,FILE_HEADER_SIZE, 1, tmpFp);
printf("\n\t\t\tEnter patient ID NO. for delete:");
scanf("%d",&patientDelete);
while (fread (&addPatientInfoInDataBase, sizeof(addPatientInfoInDataBase), 1, fp))
{
if(addPatientInfoInDataBase.patientRecordId != patientDelete)
{
fwrite(&addPatientInfoInDataBase,sizeof(addPatientInfoInDataBase), 1, tmpFp);
}
else
{
found = 1;
}
}
(found)? printf("\n\t\t\tRecord deleted successfully....."):printf("\n\t\t\tRecord not found");
fclose(fp);
fclose(tmpFp);
remove(FILE_NAME);
rename("tmp.bin",FILE_NAME);
}
updateCredential():
This function opens the file in rb+ mode (reading and writing). It asks the user for the new username and password. After taking the password and username it closes the application. Now users can use the application with a new password and username.
void updateCredential(void)
{
sFileHeader fileHeaderInfo = {0};
FILE *fp = NULL;
char userName[MAX_SIZE_USER_NAME] = {0};
char password[MAX_SIZE_PASSWORD] = {0};
headMessage("Update Credential");
fp = fopen(FILE_NAME,"rb+");
if(fp == NULL)
{
printf("File is not opened\n");
exit(1);
}
fread (&fileHeaderInfo,FILE_HEADER_SIZE, 1, fp);
if (fseek(fp,0,SEEK_SET) != 0)
{
fclose(fp);
printf("\n\t\t\tFacing issue while updating password\n");
exit(1);
}
printf("\n\n\t\t\tNew Username:");
fflush(stdin);
fgetsRemovedNewLine(userName,MAX_SIZE_USER_NAME,stdin);
printf("\n\n\t\t\tNew Password:");
fflush(stdin);
fgetsRemovedNewLine(password,MAX_SIZE_PASSWORD,stdin);
strncpy(fileHeaderInfo.username,userName,sizeof(userName));
strncpy(fileHeaderInfo.password,password,sizeof(password));
fwrite(&fileHeaderInfo,FILE_HEADER_SIZE, 1, fp);
fclose(fp);
printf("\n\t\t\tYour Password has been changed successfully");
printf("\n\t\t\tRe-Run Application and Login with new Credential:");
fflush(stdin);
getchar();
exit(1);
}
Now let’s see the complete code for the “Hospital Management System Project in C“.
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <string.h>
#include <ctype.h>
//Used macro
#define MAX_YR 9999
#define MIN_YR 1900
#define MAX_SIZE_USER_NAME 30
#define MAX_SIZE_PASSWORD 20
#define FILE_NAME "PatientRecordSystem.bin"
// Macro related to the Patient info
#define MAX_FATHER_NAME 50
#define MAX_PATIENT_NAME 50
#define MAX_PATIENT_ADDRESS 300
#define MAX_PATIENT_DISEASE 300
#define MAX_DEPARTMENT_NAME 100
#define FILE_HEADER_SIZE sizeof(sFileHeader)
//structure to store date
typedef struct
{
int yyyy;
int mm;
int dd;
} Date;
typedef struct
{
char username[MAX_SIZE_USER_NAME];
char password[MAX_SIZE_PASSWORD];
} sFileHeader;
//Elements of structure
typedef struct// to call in program
{
unsigned int patientRecordId; // declare the integer data type
float patientTotalFees;
float patientDepositMoney;
Date patientAdmitDate;// declare the integer data type
char patientFatherName[MAX_FATHER_NAME];// declare the character array for patient father name
char patientName[MAX_PATIENT_NAME];// declare the character array for the name
char patientAddr[MAX_PATIENT_ADDRESS];// declare the character array for the address
char patientDisease[MAX_PATIENT_DISEASE];// declare the character array for disease
} s_PatientInfo;
//Own version of fgetsRemovedNewLine
void fgetsRemovedNewLine(char * restrict buf, int n,FILE * restrict stream)
{
if (fgets(buf, n, stream) == NULL)
{
printf("Fail to read the input stream");
}
else
{
buf[strcspn(buf, "\n")] = '\0';
}
}
//Align the message
void printMessageCenter(const char* message)
{
int len =0;
int pos = 0;
//calculate how many space need to print
len = (78 - strlen(message))/2;
printf("\t\t\t");
for(pos =0 ; pos < len ; pos++)
{
//print space
printf(" ");
}
//print message
printf("%s",message);
}
//Head message
void headMessage(const char *message)
{
system("cls");
printf("\t\t\t###########################################################################");
printf("\n\t\t\t############ ############");
printf("\n\t\t\t############ Patient Record Management System Project in C ############");
printf("\n\t\t\t############ ############");
printf("\n\t\t\t###########################################################################");
printf("\n\t\t\t---------------------------------------------------------------------------\n");
printMessageCenter(message);
printf("\n\t\t\t----------------------------------------------------------------------------");
}
//Display message
void welcomeMessage()
{
headMessage("www.aticleworld.com");
printf("\n\n\n\n\n");
printf("\n\t\t\t **-**-**-**-**-**-**-**-**-**-**-**-**-**-**-**-**-**-**\n");
printf("\n\t\t\t =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=");
printf("\n\t\t\t = WELCOME =");
printf("\n\t\t\t = TO =");
printf("\n\t\t\t = Patient Record =");
printf("\n\t\t\t = MANAGEMENT =");
printf("\n\t\t\t = SYSTEM =");
printf("\n\t\t\t =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=");
printf("\n\t\t\t **-**-**-**-**-**-**-**-**-**-**-**-**-**-**-**-**-**-**\n");
printf("\n\n\n\t\t\t Enter any key to continue.....");
getchar();
}
//Validate name
int isNameValid(const char *name)
{
int validName = 1;
int len = 0;
int index = 0;
len = strlen(name);
for(index =0; index <len ; ++index)
{
if(!(isalpha(name[index])) && (name[index] != '\n') && (name[index] != ' '))
{
validName = 0;
break;
}
}
return validName;
}
// Function to check leap year.
//Function returns 1 if leap year
int IsLeapYear(int year)
{
return (((year % 4 == 0) &&
(year % 100 != 0)) ||
(year % 400 == 0));
}
// returns 1 if given date is valid.
int isValidDate(Date *validDate)
{
//check range of year,month and day
if (validDate->yyyy > MAX_YR ||
validDate->yyyy < MIN_YR)
return 0;
if (validDate->mm < 1 || validDate->mm > 12)
return 0;
if (validDate->dd < 1 || validDate->dd > 31)
return 0;
//Handle feb days in leap year
if (validDate->mm == 2)
{
if (IsLeapYear(validDate->yyyy))
return (validDate->dd <= 29);
else
return (validDate->dd <= 28);
}
//handle months which has only 30 days
if (validDate->mm == 4 || validDate->mm == 6 ||
validDate->mm == 9 || validDate->mm == 11)
return (validDate->dd <= 30);
return 1;
}
// Add patient in list
void addPatientInDataBase()
{
s_PatientInfo addPatientInfoInDataBase = {0};
FILE *fp = NULL;
int status = 0;
fp = fopen(FILE_NAME,"ab+");
if(fp == NULL)
{
printf("File is not opened\n");
exit(1);
}
headMessage("ADD NEW PATIENT");
printf("\n\n\t\t\tENTER YOUR DETAILS BELOW:");
printf("\n\t\t\t---------------------------------------------------------------------------\n");
printf("\n\t\t\tPatient ID = ");
fflush(stdin);
scanf("%u",&addPatientInfoInDataBase.patientRecordId);
do
{
printf("\n\t\t\tPatient Father Name = ");
fflush(stdin);
fgetsRemovedNewLine(addPatientInfoInDataBase.patientFatherName,MAX_FATHER_NAME,stdin);
status = isNameValid(addPatientInfoInDataBase.patientFatherName);
if (!status)
{
printf("\n\t\t\tName contain invalid character. Please enter again.");
}
}
while(!status);
do
{
printf("\n\t\t\tPatient Name = ");
fflush(stdin);
fgetsRemovedNewLine(addPatientInfoInDataBase.patientName,MAX_PATIENT_NAME,stdin);
status = isNameValid(addPatientInfoInDataBase.patientName);
if (!status)
{
printf("\n\t\t\tName contain invalid character. Please enter again.");
}
}
while(!status);
do
{
printf("\n\t\t\tPatient Address = ");
fflush(stdin);
fgetsRemovedNewLine(addPatientInfoInDataBase.patientAddr,MAX_FATHER_NAME,stdin);
status = isNameValid(addPatientInfoInDataBase.patientAddr);
if (!status)
{
printf("\n\t\t\tName contain invalid character. Please enter again.");
}
}
while(!status);
do
{
printf("\n\t\t\tPatient Disease = ");
fflush(stdin);
fgetsRemovedNewLine(addPatientInfoInDataBase.patientDisease,MAX_PATIENT_DISEASE,stdin);
status = isNameValid(addPatientInfoInDataBase.patientDisease);
if (!status)
{
printf("\n\t\t\tName contain invalid character. Please enter again.");
}
}
while(!status);
printf("\n\t\t\tPatient Total Charge = ");
fflush(stdin);
scanf("%f",&addPatientInfoInDataBase.patientTotalFees);
printf("\n\t\t\tPatient Initial Deposit = ");
fflush(stdin);
scanf("%f",&addPatientInfoInDataBase.patientDepositMoney);
do
{
printf("\n\t\t\tPatient Admit Date:- ");
//get date year,month and day from user
printf("\n\t\t\tEnter date in format (dd/mm/yyyy): ");
scanf("%d/%d/%d",&addPatientInfoInDataBase.patientAdmitDate.dd,&addPatientInfoInDataBase.patientAdmitDate.mm,&addPatientInfoInDataBase.patientAdmitDate.yyyy);
//check date validity
status = isValidDate(&addPatientInfoInDataBase.patientAdmitDate);
if (!status)
{
printf("\n\t\t\tPlease enter a valid date.\n");
}
}
while(!status);
fwrite(&addPatientInfoInDataBase,sizeof(addPatientInfoInDataBase), 1, fp);
fclose(fp);
}
// search patient Record
void searchPatient()
{
int found = 0;
int patientId =0;
s_PatientInfo addPatientInfoInDataBase = {0};
FILE *fp = NULL;
fp = fopen(FILE_NAME,"rb");
if(fp == NULL)
{
printf("\n\t\t\tFile is not opened\n");
exit(1);
}
headMessage("SEARCH PATIENT");
//put the control on patient detail
if (fseek(fp,FILE_HEADER_SIZE,SEEK_SET) != 0)
{
fclose(fp);
printf("\n\t\t\tFacing issue while reading file\n");
exit(1);
}
printf("\n\n\t\t\tEnter patient ID NO to search:");
fflush(stdin);
scanf("%u",&patientId);
while (fread (&addPatientInfoInDataBase, sizeof(addPatientInfoInDataBase), 1, fp))
{
if(addPatientInfoInDataBase.patientRecordId == patientId)
{
found = 1;
break;
}
}
if(found)
{
float remainingAmount = (addPatientInfoInDataBase.patientTotalFees >= addPatientInfoInDataBase.patientDepositMoney)?
(addPatientInfoInDataBase.patientTotalFees - addPatientInfoInDataBase.patientDepositMoney):(float)(0.0);
printf("\n\t\t\tPatient id = %d\n",addPatientInfoInDataBase.patientRecordId);
printf("\n\t\t\tPatient name = %s\n",addPatientInfoInDataBase.patientName);
printf("\n\t\t\tPatient Disease = %s\n",addPatientInfoInDataBase.patientDisease);
printf("\t\t\tPatient Total Charge = %f\n",addPatientInfoInDataBase.patientTotalFees);
printf("\t\t\tPatient Deposit Amount = %f\n",addPatientInfoInDataBase.patientDepositMoney);
printf("\t\t\tPatient Remaining Amount = %f\n",remainingAmount);
printf("\t\t\tPatient Father Name = %s\n",addPatientInfoInDataBase.patientFatherName);
printf("\t\t\tPatient Address = %s\n",addPatientInfoInDataBase.patientAddr);
printf("\t\t\tPatient Admited Date(day/month/year) = (%d/%d/%d)\n",addPatientInfoInDataBase.patientAdmitDate.dd,
addPatientInfoInDataBase.patientAdmitDate.mm, addPatientInfoInDataBase.patientAdmitDate.yyyy);
}
else
{
printf("\n\t\t\tNo Record");
}
fclose(fp);
printf("\n\n\n\t\t\tPress any key to go to main menu.....");
fflush(stdin);
getchar();
}
// view Patient function
void viewPatient()
{
int found = 0;
s_PatientInfo addPatientInfoInDataBase = {0};
FILE *fp = NULL;
unsigned int countPatient = 1;
headMessage("VIEW PATIENT DETAILS");
fp = fopen(FILE_NAME,"rb");
if(fp == NULL)
{
printf("File is not opened\n");
exit(1);
}
if (fseek(fp,FILE_HEADER_SIZE,SEEK_SET) != 0)
{
fclose(fp);
printf("Facing issue while reading file\n");
exit(1);
}
//Print patient count
printf("\n\t\t\tPatient Count = %d\n\n",countPatient);
while (fread (&addPatientInfoInDataBase, sizeof(addPatientInfoInDataBase), 1, fp))
{
float remainingAmount = (addPatientInfoInDataBase.patientTotalFees >= addPatientInfoInDataBase.patientDepositMoney)?
(addPatientInfoInDataBase.patientTotalFees - addPatientInfoInDataBase.patientDepositMoney):(float)(0.0);
printf("\t\t\tPatient id = %u\n",addPatientInfoInDataBase.patientRecordId);
printf("\t\t\tPatient Name = %s\n",addPatientInfoInDataBase.patientName);
printf("\n\t\t\tPatient Disease = %s\n",addPatientInfoInDataBase.patientDisease);
printf("\t\t\tPatient Total Charge = %f\n",addPatientInfoInDataBase.patientTotalFees);
printf("\t\t\tPatient Deposit Amount = %f\n",addPatientInfoInDataBase.patientDepositMoney);
printf("\t\t\tPatient Remaining Amount = %f\n",remainingAmount);
printf("\t\t\tPatient Father Name = %s\n",addPatientInfoInDataBase.patientFatherName);
printf("\t\t\tPatient Address = %s\n",addPatientInfoInDataBase.patientAddr);
printf("\t\t\tPatient Admited Date(day/month/year) = (%d/%d/%d)\n\n",addPatientInfoInDataBase.patientAdmitDate.dd,
addPatientInfoInDataBase.patientAdmitDate.mm, addPatientInfoInDataBase.patientAdmitDate.yyyy);
found = 1;
++countPatient;
}
fclose(fp);
if(!found)
{
printf("\n\t\t\tNo Record");
}
printf("\n\n\t\t\tPress any key to go to main menu.....");
fflush(stdin);
getchar();
}
// Delete patient Record entry
void deletePatient()
{
int found = 0;
int patientDelete = 0;
sFileHeader fileHeaderInfo = {0};
s_PatientInfo addPatientInfoInDataBase = {0};
FILE *fp = NULL;
FILE *tmpFp = NULL;
headMessage("Delete patient Record Details");
fp = fopen(FILE_NAME,"rb");
if(fp == NULL)
{
printf("File is not opened\n");
exit(1);
}
tmpFp = fopen("tmp.bin","wb");
if(tmpFp == NULL)
{
fclose(fp);
printf("File is not opened\n");
exit(1);
}
fread (&fileHeaderInfo,FILE_HEADER_SIZE, 1, fp);
fwrite(&fileHeaderInfo,FILE_HEADER_SIZE, 1, tmpFp);
printf("\n\t\t\tEnter patient ID NO. for delete:");
scanf("%d",&patientDelete);
while (fread (&addPatientInfoInDataBase, sizeof(addPatientInfoInDataBase), 1, fp))
{
if(addPatientInfoInDataBase.patientRecordId != patientDelete)
{
fwrite(&addPatientInfoInDataBase,sizeof(addPatientInfoInDataBase), 1, tmpFp);
}
else
{
found = 1;
}
}
(found)? printf("\n\t\t\tRecord deleted successfully....."):printf("\n\t\t\tRecord not found");
fclose(fp);
fclose(tmpFp);
remove(FILE_NAME);
rename("tmp.bin",FILE_NAME);
}
//function to update credential
void updateCredential(void)
{
sFileHeader fileHeaderInfo = {0};
FILE *fp = NULL;
char userName[MAX_SIZE_USER_NAME] = {0};
char password[MAX_SIZE_PASSWORD] = {0};
headMessage("Update Credential");
fp = fopen(FILE_NAME,"rb+");
if(fp == NULL)
{
printf("File is not opened\n");
exit(1);
}
fread (&fileHeaderInfo,FILE_HEADER_SIZE, 1, fp);
if (fseek(fp,0,SEEK_SET) != 0)
{
fclose(fp);
printf("\n\t\t\tFacing issue while updating password\n");
exit(1);
}
printf("\n\n\t\t\tNew Username:");
fflush(stdin);
fgetsRemovedNewLine(userName,MAX_SIZE_USER_NAME,stdin);
printf("\n\n\t\t\tNew Password:");
fflush(stdin);
fgetsRemovedNewLine(password,MAX_SIZE_PASSWORD,stdin);
strncpy(fileHeaderInfo.username,userName,sizeof(userName));
strncpy(fileHeaderInfo.password,password,sizeof(password));
fwrite(&fileHeaderInfo,FILE_HEADER_SIZE, 1, fp);
fclose(fp);
printf("\n\t\t\tYour Password has been changed successfully");
printf("\n\t\t\tRe-Run Application and Login with new Credential:");
fflush(stdin);
getchar();
exit(1);
}
//Display menu
void menu()
{
int choice = 0;
do
{
headMessage("MAIN MENU");
printf("\n\n\n\t\t\t1.Add New Patient Record");
printf("\n\t\t\t2.Search Patient Record");
printf("\n\t\t\t3.View Patient Record");
printf("\n\t\t\t4.Delete Patient Record");
printf("\n\t\t\t5.Update Password");
printf("\n\t\t\t0.Exit");
printf("\n\n\n\t\t\tEnter choice => ");
scanf("%d",&choice);
switch(choice)
{
case 1:
addPatientInDataBase();
break;
case 2:
searchPatient();
break;
case 3:
viewPatient();
break;
case 4:
deletePatient();
break;
case 5:
updateCredential();
break;
case 0:
printf("\n\n\n\t\t\t\tThank you!!!\n\n\n\n\n");
exit(1);
break;
default:
printf("\n\n\n\t\t\tINVALID INPUT!!! Try again...");
} //Switch Ended
}
while(choice!=0); //Loop Ended
}
//login password
void login()
{
char userName[MAX_SIZE_USER_NAME] = {0};
char password[MAX_SIZE_PASSWORD] = {0};
int L=0;
sFileHeader fileHeaderInfo = {0};
FILE *fp = NULL;
headMessage("Login");
fp = fopen(FILE_NAME,"rb");
if(fp == NULL)
{
printf("Data base is not opened\n");
exit(1);
}
fread (&fileHeaderInfo,FILE_HEADER_SIZE, 1, fp);
fclose(fp);
do
{
printf("\n\n\n\t\t\t\tUsername:");
fgetsRemovedNewLine(userName,MAX_SIZE_USER_NAME,stdin);
printf("\n\t\t\t\tPassword:");
fgetsRemovedNewLine(password,MAX_SIZE_PASSWORD,stdin);
if((!strcmp(userName,fileHeaderInfo.username)) && (!strcmp(password,fileHeaderInfo.password)))
{
menu();
}
else
{
printf("\t\t\t\tLogin Failed Enter Again Username & Password\n\n");
L++;
}
}
while(L<=3);
if(L>3)
{
headMessage("Login Failed");
printf("\t\t\t\tSorry,Unknown User.");
getchar();
system("cls");
}
}
//Check file exist or not
int isFileExists(const char *path)
{
// Try to open file
FILE *fp = fopen(path, "rb");
int status = 0;
// If file does not exists
if (fp != NULL)
{
status = 1;
// File exists hence close file
fclose(fp);
}
return status;
}
void init()
{
FILE *fp = NULL;
int status = 0;
const char defaultUsername[] ="aticleworld";
const char defaultPassword[] ="aticleworld";
sFileHeader fileHeaderInfo = {0};
status = isFileExists(FILE_NAME);
if(!status)
{
//create the binary file
fp = fopen(FILE_NAME,"wb");
if(fp != NULL)
{
//Copy default password
strncpy(fileHeaderInfo.password,defaultPassword,sizeof(defaultPassword));
strncpy(fileHeaderInfo.username,defaultUsername,sizeof(defaultUsername));
fwrite(&fileHeaderInfo,FILE_HEADER_SIZE, 1, fp);
fclose(fp);
}
}
}
int main()
{
init();
welcomeMessage();
login();
return 0;
}
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