Diary_management_systeem_full_code.c

//Author : Niher Ronjon Pramanik

#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
#include <string.h>
#include <time.h>
#include <windows.h>

void login();
void registration();
void addrecord();
void viewrecord();
void editrecord();
void deleterecord();
void editpassword();

void login()
{
    int i = 0;
    char uname[10], c = ' ';
    char pword[10];
    FILE *fp;
    fp = fopen("users.txt", "r");
    if (fp == NULL)
    {
        printf("\n");
        printf("\n\t\t\tNo users found...Please register first...\n");
        printf("\t\t\tRedirecting to registration...\n");
        fclose(fp);
        registration();
        return;
    }
    else
    {
        printf("\n  ::::::::::::::::::::::::::  LOGIN FORM  ::::::::::::::::::::::::::  ");
        printf(" \n                       ENTER USERNAME:-");
        scanf("%s", uname);
        printf(" \n                       ENTER PASSWORD:-");
    }
    while (i < 10)
    {
        pword[i] = getch();
        c = pword[i];
        if (c == 13)
            break;
        else
            printf("*");
        i++;
    }
    pword[i] = '\0';
    i = 0;

    char username[10], password[10];
    int found = 0;
    rewind(fp); // Move file pointer to the beginning
    while (fscanf(fp, "%s %s", username, password) != EOF)
    {
        if (strcmp(uname, username) == 0 && strcmp(pword, password) == 0)
        {
            found = 1;
            break;
        }
    }
    fclose(fp);

    if (found)
    {
        printf("\n  \n\n\n       WELCOME TO PERSONAL DIARY MANAGEMENT SYSTEM !!!! LOGIN IS SUCCESSFUL");
        printf("\n LOADING PLEASE WAIT... \n");
        for (i = 0; i < 3; i++)
        {
            printf(".");
            Sleep(500);
        }
        printf("\n\n\n\t\t\t\tPress any key to continue...");
        getch();
    }
    else
    {
        printf("\n        SORRY !!!!  LOGIN IS UNSUCCESSFUL");
        getch();
    }
    system("cls");
}

void registration()
{
    FILE *fp;
    char username[10], password[10];

    printf("\n  ::::::::::::::::::::::::::  REGISTRATION FORM  ::::::::::::::::::::::::::  ");
    printf("\n\n                       ENTER USERNAME:-");
    gets(username);
    printf("\n\n                       ENTER PASSWORD:-");
    scanf("%s", password);

    printf("\t\t\t");
    for (int i = 0; i < 3; i++)
    {
        printf(".");
        Sleep(500);
    }
    fp = fopen("users.txt", "a+");
    if (fp == NULL)
    {
        printf("Error opening file!\n");
        exit(1);
    }

    fprintf(fp, "%s %s\n", username, password);
    fclose(fp);

    printf("\n\n\t\t\t  Registration successful!\n");
    login();
}

struct record
{
    char time[6];
    char name[30];
    char place[25];
    char duration[10];
    char note[500];
};

int main()
{
    char choice;

    HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
    CONSOLE_SCREEN_BUFFER_INFO consoleInfo;
    GetConsoleScreenBufferInfo(hConsole, &consoleInfo);
    WORD originalAttributes = consoleInfo.wAttributes;
    SetConsoleTextAttribute(hConsole, FOREGROUND_BLUE | FOREGROUND_RED);
    printf("\n\t\t\t PERSONAL DIARY MANAGEMENT SYSTEM");
    SetConsoleTextAttribute(hConsole, originalAttributes);
    printf("\n\n\n\t\t\t1. Login\n\t\t\t2. Register\n\n\t\t\tEnter your choice: ");
    choice = getche(); // read every single character

    switch (choice)
    {
    case '1':
        login();
        break;
    case '2':
        registration();
        printf("\n\n\t\t\t  Please log in to continue.\n");
        login();
        break;
    default:
        printf("\nInvalid choice!\n");
        break;
    }

    time_t t; // represent time as calender
    time(&t); // time functiom
    int ch;
    SetConsoleTextAttribute(hConsole, FOREGROUND_BLUE | FOREGROUND_RED);
    printf("\n\n\t:::::::::::::::::::::::::::::::::::\n");
    printf("\t:PERSONAL DIARY MANAGEMENT SYSTEM:\n");
    printf("\t:::::::::::::::::::::::::::::::::::");
    printf("\n\n\tCurrent date and time : %s", ctime(&t));
    SetConsoleTextAttribute(hConsole, originalAttributes);

    while (1)
    {
        printf("\n\n\t\t:MAIN MENU:");
        printf("\n\n\tPress <1> To ADD RECORD\t");
        printf("\n\tPress <2> To VIEW RECORDS\t");
        printf("\n\tPress <3> To EDIT RECORDS\t");
        printf("\n\tPress <4> To DELETE RECORD\t");
        printf("\n\tPress <5> To EDIT PASSWORD\t");
        printf("\n\tPress <6> To EXIT\t\t");
        printf("\n\n\tENTER YOUR CHOICE:");
        scanf("%d", &ch);

        switch (ch)
        {
        case 1:
            addrecord();
            break;
        case 2:
            viewrecord();
            break;
        case 3:
            editrecord();
            break;
        case 4:
            deleterecord();
            break;
        case 5:
            editpassword();
            break;
        case 6:
            printf("\n\n\t\tTHANK YOU FOR USING THE SOFTWARE ");
            getch();
            exit(0);
        default:
            printf("\nYOU ENTERED WRONG CHOICE..");
            printf("\nPRESS ANY KEY TO TRY AGAIN");
            getch();
            break;
        }
        system("cls"); // the cls command is used to clear the screen.
    }
    return 0;
}

void addrecord()
{
    system("cls");
    FILE *fp;
    char another = 'Y', time[10];
    struct record e;
    char filename[15];

    int choice;

    HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
    CONSOLE_SCREEN_BUFFER_INFO consoleInfo;
    GetConsoleScreenBufferInfo(hConsole, &consoleInfo);
    WORD originalAttributes = consoleInfo.wAttributes;
    SetConsoleTextAttribute(hConsole, FOREGROUND_BLUE | FOREGROUND_RED);
    printf("\n\n\t\t:::::::::::::::::::::::::::\n");
    printf("\t\t: WELCOME TO THE ADD MENU :");
    printf("\n\t\t:::::::::::::::::::::::::::\n\n");
    SetConsoleTextAttribute(hConsole, originalAttributes);
    printf("\n\n\tENTER DATE OF YOUR RECORD:[yyyy-mm-dd]:");
    fflush(stdin);
    gets(filename);
    fp = fopen(filename, "ab+");

    if (fp == NULL)
    {
        fp = fopen(filename, "wb+");
        if (fp == NULL)
        {
            printf("\nSYSTEM ERROR...");
            printf("\nPRESS ANY KEY TO EXIT");
            getch();
            return;
        }
    }
    while (another == 'Y' || another == 'y')
    {
        choice = 0;
        fflush(stdin);
        printf("\n\tENTER TIME:[hh:mm]:");
        scanf("%s", time);
        rewind(fp);
        while (fread(&e, sizeof(e), 1, fp) == 1)
        {
            if (strcmp(e.time, time) == 0)
            {
                printf("\n\tTHE RECORD ALREADY EXISTS.\n");
                choice = 1;
            }
        }
        if (choice == 0)
        {
            strcpy(e.time, time);
            printf("\tENTER NAME:");
            fflush(stdin);
            gets(e.name);
            fflush(stdin);
            printf("\tENTER PLACE:");
            gets(e.place);
            fflush(stdin);
            printf("\tENTER DURATION:");
            gets(e.duration);
            fflush(stdin);
            printf("\tNOTE:");
            gets(e.note);
            fwrite(&e, sizeof(e), 1, fp);
            printf("\nYOUR RECORD IS ADDED SUCCESSFULLY...\n");
        }
        printf("\n\tDO YOU WANT TO ADD ANOTHER RECORD...(Y/N) ");
        fflush(stdin);
        another = getchar();
    }
    fclose(fp);
    printf("\n\n\tPRESS ANY KEY TO EXIT...");
    getch();
}

void viewrecord()
{
    FILE *fpte;
    system("cls");
    struct record customer;
    char time[6], choice, filename[14];
    int ch;
    HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
    CONSOLE_SCREEN_BUFFER_INFO consoleInfo;
    GetConsoleScreenBufferInfo(hConsole, &consoleInfo);
    WORD originalAttributes = consoleInfo.wAttributes;
    SetConsoleTextAttribute(hConsole, FOREGROUND_BLUE | FOREGROUND_RED);
    printf("\n\n\t\t::::::::::::::::::::::::::::::\n");
    printf("\t\t\t: VIEWING MENU :");
    printf("\n\t\t::::::::::::::::::::::::::::::\n\n");
    SetConsoleTextAttribute(hConsole, originalAttributes);

    do
    {
        printf("\n\tENTER THE DATE OF RECORD TO BE VIEWED:[yyyy-mm-dd]:");
        fflush(stdin);
        gets(filename);
        fpte = fopen(filename, "rb");
        if (fpte == NULL)
        {
            puts("\nTHE RECORD DOES NOT EXIST...\n");
            printf("PRESS ANY KEY TO EXIT...");
            getch();
            return;
        }
        system("cls");
        printf("\n\tHOW WOULD YOU LIKE TO VIEW:\n");
        printf("\n\t1.WHOLE RECORD OF THE DAY.");
        printf("\n\t2.RECORD OF FIX TIME.");
        printf("\n\t\tENTER YOUR CHOICE:");
        scanf("%d", &ch);

        switch (ch)
        {
        case 1:

            printf("\nTHE WHOLE RECORD FOR %s IS:", filename);
            while (fread(&customer, sizeof(customer), 1, fpte) == 1)
            {
                printf("\n");
                printf("\nTIME: %s", customer.time);
                printf("\nMEETING WITH: %s", customer.name);
                printf("\nMEETING AT: %s", customer.place);
                printf("\nDURATION: %s", customer.duration);
                printf("\nNOTE: %s", customer.note);
                printf("\n");
            }
            break;
        case 2:
            fflush(stdin);
            printf("\nENTER TIME:[hh:mm]:");
            gets(time);
            while (fread(&customer, sizeof(customer), 1, fpte) == 1)
            {
                if (strcmp(customer.time, time) == 0)
                {
                    printf("\nYOUR RECORD IS:");
                    printf("\nTIME: %s", customer.time);
                    printf("\nMEETING WITH: %s", customer.name);
                    printf("\nMEETING AT: %s", customer.place);
                    printf("\nDUARATION: %s", customer.duration);
                    printf("\nNOTE: %s", customer.note);
                }
            }
            break;

        default:
            printf("\nYOU TYPED SOMETHING ELSE...\n");
            break;
        }
        printf("\n\nWOULD YOU LIKE TO CONTINUE VIEWING...(Y/N):");
        fflush(stdin);
        scanf("%c", &choice);
    } while (choice == 'Y' || choice == 'y');
    fclose(fpte);
    return;
}

void editrecord()
{
    system("cls");
    FILE *fpte;
    struct record customer;
    char time[6], choice, filename[14];
    int num, count = 0;

    HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
    CONSOLE_SCREEN_BUFFER_INFO consoleInfo;
    GetConsoleScreenBufferInfo(hConsole, &consoleInfo);
    WORD originalAttributes = consoleInfo.wAttributes;
    SetConsoleTextAttribute(hConsole, FOREGROUND_BLUE | FOREGROUND_RED);
    printf("\n\n\t\t:::::::::::::::::::::::::::::::\n");
    printf("\t\t\t: EDIT RECORDS :");
    printf("\n\t\t:::::::::::::::::::::::::::::::\n\n");
    SetConsoleTextAttribute(hConsole, originalAttributes);

    do
    {
        printf("\n\tENTER THE DATE OF RECORD TO BE EDITED:[yyyy-mm-dd]:");
        fflush(stdin);
        gets(filename);
        printf("\n\tENTER TIME:[hh:mm]:");
        gets(time);
        fpte = fopen(filename, "rb+");
        if (fpte == NULL)
        {
            printf("\nRECORD DOES NOT EXISTS:");
            printf("\nPRESS ANY KEY TO GO BACK");
            getch();
            return;
        }
        while (fread(&customer, sizeof(customer), 1, fpte) == 1)
        {
            if (strcmp(customer.time, time) == 0)
            {
                printf("\nYOUR OLD RECORD WAS AS:");
                printf("\nTIME: %s", customer.time);
                printf("\nMEETING WITH: %s", customer.name);
                printf("\nMEETING AT: %s", customer.place);
                printf("\nDURATION: %s", customer.duration);
                printf("\nNOTE: %s", customer.note);
                printf("\n\n\t\tWHAT WOULD YOU LIKE TO EDIT..");
                printf("\n1.TIME.");
                printf("\n2.MEETING PERSON.");
                printf("\n3.MEETING PLACE.");
                printf("\n4.DURATION.");
                printf("\n5.NOTE.");
                printf("\n6.WHOLE RECORD.");
                printf("\n7.GO BACK TO MAIN MENU.");

                do
                {
                    printf("\n\tENTER YOUR CHOICE:");
                    fflush(stdin);
                    scanf("%d", &num);
                    fflush(stdin);
                    switch (num)
                    {
                    case 1:
                        printf("\nENTER THE NEW DATA:");
                        printf("\nNEW TIME:[hh:mm]:");
                        gets(customer.time);
                        break;
                    case 2:
                        printf("\nENTER THE NEW DATA:");
                        printf("\nNEW MEETING PERSON:");
                        gets(customer.name);
                        break;
                    case 3:
                        printf("\nENTER THE NEW DATA:");
                        printf("\nNEW MEETING PLACE:");
                        gets(customer.place);
                        break;
                    case 4:
                        printf("\nENTER THE NEW DATA:");
                        printf("\nDURATION:");
                        gets(customer.duration);
                        break;
                    case 5:
                        printf("ENTER THE NEW DATA:");
                        printf("\nNOTE:");
                        gets(customer.note);
                        break;
                    case 6:
                        printf("\nENTER THE NEW DATA:");
                        printf("\nNEW TIME:[hh:mm]:");
                        gets(customer.time);
                        printf("\nNEW MEETING PERSON:");
                        gets(customer.name);
                        printf("\nNEW MEETING PLACE:");
                        gets(customer.place);
                        printf("\nDURATION:");
                        gets(customer.duration);
                        printf("\nNOTE:");
                        gets(customer.note);
                        break;
                    case 7:
                        printf("\nPRESS ANY KEY TO GO BACK...\n");
                        getch();
                        return;
                        break;
                    default:
                        printf("\nYOU TYPED SOMETHING ELSE...TRY AGAIN\n");
                        break;
                    }
                } while (num < 1 || num > 8);
                fseek(fpte, -sizeof(customer), SEEK_CUR);
                fwrite(&customer, sizeof(customer), 1, fpte);
                fseek(fpte, -sizeof(customer), SEEK_CUR);
                fread(&customer, sizeof(customer), 1, fpte);
                choice = 5;
                break;
            }
        }
        if (choice == 5)
        {
            system("cls");
            printf("\n\t\tEDITING COMPLETED...\n");
            printf("--------------------\n");
            printf("THE NEW RECORD IS:\n");
            printf("--------------------\n");
            printf("\nTIME: %s", customer.time);
            printf("\nMEETING WITH: %s", customer.name);
            printf("\nMEETING AT: %s", customer.place);
            printf("\nDURATION: %s", customer.duration);
            printf("\nNOTE: %s", customer.note);
            fclose(fpte);
            printf("\n\n\tWOULD YOU LIKE TO EDIT ANOTHER RECORD.(Y/N)");
            scanf("%c", &choice);
            count++;
        }
        else
        {
            printf("\nTHE RECORD DOES NOT EXIST::\n");
            printf("\nWOULD YOU LIKE TO TRY AGAIN...(Y/N)");
            scanf("%c", &choice);
        }
    } while (choice == 'Y' || choice == 'y');
    fclose(fpte);

    if (count == 1)
        printf("\n%d FILE IS EDITED...\n", count);
    else if (count > 1)
        printf("\n%d FILES ARE EDITED..\n", count);
    else
        printf("\nNO FILES EDITED...\n");
    printf("\tPRESS ENTER TO EXIT EDITING MENU.");
    getch();
}

void deleterecord()
{
    system("cls");
    FILE *fp, *fptr;
    struct record file;
    char filename[15], another = 'Y', time[10];
    int choice, check;

    HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
    CONSOLE_SCREEN_BUFFER_INFO consoleInfo;
    GetConsoleScreenBufferInfo(hConsole, &consoleInfo);
    WORD originalAttributes = consoleInfo.wAttributes;
    SetConsoleTextAttribute(hConsole, FOREGROUND_BLUE | FOREGROUND_RED);
    printf("\n\n\t\t:::::::::::::::::::::::::\n");
    printf("\t\t\t: DELETE RECORDS :");
    printf("\n\t\t:::::::::::::::::::::::::\n\n");
    SetConsoleTextAttribute(hConsole, originalAttributes);

    while (another == 'Y')
    {
        printf("\n\n\tHOW WOULD YOU LIKE TO DELETE.");
        printf("\n\n\t1.DELETE WHOLE RECORD\t");
        printf("\n\t2.DELETE A PARTICULAR RECORD BY TIME\t");

        do
        {
            printf("\n\t\tENTER YOU CHOICE:");
            scanf("%d", &choice);
            switch (choice)
            {
            case 1:
                printf("\n\tENTER THE DATE OF RECORD TO BE DELETED:[yyyy-mm-dd]:");
                fflush(stdin);
                gets(filename);

                fp = fopen(filename, "wb");

                if (fp == NULL)
                {
                    printf("\nTHE FILE DOES NOT EXISTS");
                    printf("\nPRESS ANY KEY TO GO BACK.");
                    getch();
                    return;
                }

                fclose(fp);
                remove(filename);
                printf("\nDELETED SUCCESFULLY...");
                break;
            case 2:
                printf("\n\tENTER THE DATE OF RECORD:[yyyy-mm-dd]:");
                fflush(stdin);
                gets(filename);
                fp = fopen(filename, "rb");
                if (fp == NULL)
                {
                    printf("\nTHE FILE DOES NOT EXISTS");
                    printf("\nPRESS ANY KEY TO GO BACK.");
                    getch();
                    return;
                }

                fptr = fopen("temp", "wb");

                if (fptr == NULL)
                {
                    printf("\nSYSTEM ERROR");
                    printf("\nPRESS ANY KEY TO GO BACK");
                    getch();
                    return;
                }
                printf("\n\tENTER THE TIME OF RECORD TO BE DELETED:[hh:mm]:");
                fflush(stdin);
                gets(time);
                while (fread(&file, sizeof(file), 1, fp) == 1)
                {
                    if (strcmp(file.time, time) != 0)
                        fwrite(&file, sizeof(file), 1, fptr);
                }
                fclose(fp);
                fclose(fptr);
                remove(filename);
                rename("temp", filename);
                printf("\nDELETED SUCCESFULLY...");
                break;
            default:
                printf("\n\tYOU ENTERED WRONG CHOICE");
                break;
            }
        } while (choice < 1 || choice > 2);
        printf("\n\tDO YOU LIKE TO DELETE ANOTHER RECORD.(Y/N):");
        fflush(stdin);
        scanf("%c", &another);
    }
    printf("\n\n\tPRESS ANY KEY TO EXIT...");
    getch();
}

void editpassword()
{
    system("cls");
    printf("\n");
    char pass[15] = {0}, confirm[15] = {0}, ch;
    int choice, i, check;
    FILE *fp;
    fp = fopen("SE", "rb");
    if (fp == NULL)
    {
        fp = fopen("SE", "wb");
        if (fp == NULL)
        {
            printf("SYSTEM ERROR...");
            getch();
            return;
        }
        fclose(fp);
        printf("\nSYSTEM RESTORED...\nYOUR PASSWORD IS 'ENTER'\n PRESS ENTER TO CHANGE PASSWORD\n\n");
        getch();
    }
    fclose(fp);
    // check = password();
    // if (check == 1)
    // {
    //     return;
    // }
    do
    {
        if (check == 0)
        {
            i = 0;
            choice = 0;
            printf("\n\n\tENTER THE NEW PASSWORD:");
            fflush(stdin);
            pass[0] = getch();
            while (pass[i] != '\r')
            {
                if (pass[i] == '\b')
                {
                    i--;
                    printf("\b");
                    printf(" ");
                    printf("\b");
                    pass[i] = getch();
                }
                else
                {
                    printf("*");
                    i++;
                    pass[i] = getch();
                }
            }
            pass[i] = '\0';
            i = 0;
            printf("\n\tCONFIRM PASSWORD:");
            confirm[0] = getch();
            while (confirm[i] != '\r')
            {
                if (confirm[i] == '\b')
                {
                    i--;
                    printf("\b");
                    printf(" ");
                    printf("\b");
                    confirm[i] = getch();
                }
                else
                {
                    printf("*");
                    i++;
                    confirm[i] = getch();
                }
            }
            confirm[i] = '\0';
            if (strcmp(pass, confirm) == 0)
            {
                fp = fopen("SE", "wb");
                if (fp == NULL)
                {
                    printf("\n\t\tSYSTEM ERROR");
                    getch();
                    return;
                }
                i = 0;
                while (pass[i] != '\0')
                {
                    ch = pass[i];
                    putc(ch + 5, fp);
                    i++;
                }
                putc(EOF, fp);
                fclose(fp);
            }
            else
            {
                printf("\n\tTHE NEW PASSWORD DOES NOT MATCH.");
                choice = 1;
            }
        }
    } while (choice == 1);
    printf("\n\n\tPASSWORD CHANGED...\n\n\tPRESS ANY KEY TO GO BACK...");
    getch();
}