#include<string.h>
#include <stdio.h>
#include <stdlib.h>


typedef struct
{
    char street[50];
    char city[20];
    char zipcode[10];
    char flat_no[5];

} address;
typedef struct
{
    char home_num[10];
    char mobile_num[20];
} numbers;
typedef struct
{
    char first_name[10];
    char last_name[10];
    address adrs;
    numbers num;
    char email[20];
    int validcontact;

} contact;

contact *contacts;

int location;
void LOAD();
int Query();
void display(int i);
void ADD();
void Edit();
void save();
void  print_sorted();
void show_all();
int main()
{
    contacts=(contact *) malloc(1000*sizeof(contact));
    LOAD();
    system("cls");



    int i, number;
    while(1)
    {
        printf("Enter the number of your choice :\n ");
        printf("1-read file \n2-search \n3-Add contact\n4-Edit to contact \n5-Delete\n6-sort\n7-save\n8-Quit\n");
        scanf("%d",&number);

        switch(number)
        {
        case 1:
            LOAD();
            break;
        case 2:

            i= Query();
            printf("i=%d\n",i);
            if(i != -1)
            {
                display(i);
            }
            else
            {
                printf("name not found.\n\n");
            }
            //el i h5odha mn el function w b3den a3ml display
            break;
        case 3:
            ADD();
            break;
        case 4:
            Edit();
            break;
        case 5:

            Delete();
            break;
        case 6:
            print_sorted();
            break;
        case 7:
            save();
            break;
        case 8:

            Quit();
            break;
        default:
            printf("you don't enter an existing number");
            scanf("%d",&number);
        }
    }
    return 0;
}
void LOAD()
{

    char stringLine[100];
    int count=0,i;

    FILE *f= fopen("contact.txt","r");


    if (f == NULL)
        exit(EXIT_FAILURE);

    while (EOF != fscanf(f, "%[^\n]\n", stringLine))
    {
        printf("> %s\n", stringLine);
        count++;
    }

    printf("count %d\n", count);

    fclose(f);
    f= fopen("contact.txt","r");



    for(i=0; i<count; i++)
    {
        /* contacts[i].first_name=(char*)malloc(sizeof(char*));
         contacts[i].last_name=(char*)malloc(sizeof(char*));
         contacts[i].adrs.street=(char*)malloc(sizeof(char*));
         contacts[i].adrs.flat_no=malloc(sizeof(char*));
         contacts[i].adrs.city=(char*)malloc(sizeof(char*));
         contacts[i].adrs.zipcode=(char*)malloc(sizeof(char*));
         contacts[i].email=(char*)malloc(sizeof(char*));
         contacts[i].num.mobile_num =(char*)malloc(sizeof(char*));
         contacts[i].num.home_num =(char*)malloc(sizeof(char*));
         */

        fscanf(f,"%[^,]",contacts[i].first_name);
        fscanf(f,",%[^,]",contacts[i].last_name);
        fscanf(f,",%[^,]",contacts[i].adrs.street);
        fscanf(f,",%[^,]",contacts[i].adrs.flat_no);
        fscanf(f,",%[^,]",contacts[i].adrs.city);
        fscanf(f,",%[^,]",contacts[i].adrs.zipcode);
        fscanf(f,",%[^,]",contacts[i].email);
        fscanf(f,",%[^,]",contacts[i].num.mobile_num);
        fscanf(f,",%[^\n]\n",contacts[i].num.home_num);   //the last element so \n
    }

    //print all
    for(i=0; i<count; i++)
    {
        printf("%s - %s\n",contacts[i].first_name,contacts[i].last_name);
        printf("%s - %s - %s - %s\n",contacts[i].adrs.street,contacts[i].adrs.flat_no,contacts[i].adrs.city,contacts[i].adrs.zipcode);
        printf("%s - %s - %s\n\n",contacts[i].email,contacts[i].num.mobile_num,contacts[i].num.home_num);

    }

    location=count;

}

int Query()
{
    int i;
    char target[20];
    printf("Enter the first name:");
    gets(target);
    gets(target);
    for(i=0; i<location; i++)
    {
        if(strncmp(contacts[i].first_name,target,strlen(target))==0)
        {
            return i;
            break;
        }





    }
    return -1;

}
void display(int i)
{


    printf("%s - %s\n",contacts[i].first_name,contacts[i].last_name);
    printf("%s - %s - %s - %s\n",contacts[i].adrs.street,contacts[i].adrs.flat_no,contacts[i].adrs.city,contacts[i].adrs.zipcode);
    printf("%s - %s - %s\n\n",contacts[i].email,contacts[i].num.mobile_num,contacts[i].num.home_num);

}
void ADD()
{
    printf("Enter the first name you want to add:");
    gets(contacts[location].first_name);
    gets(contacts[location].first_name);
    printf("\n Enter the last name you want to add:");
    gets(contacts[location].last_name);
    printf("\n Enter the address street you want to add:");
    gets(contacts[location].adrs.street);
    printf("\n Enter the flat no you want to add:");
    gets(contacts[location].adrs.flat_no);
    printf("\n Enter the address city you want to add:");
    gets(contacts[location].adrs.city);
    printf("\n Enter the zip code you want to add:");
    gets(contacts[location].adrs.zipcode);
    printf("\n Enter the email you want to add:");
    gets(contacts[location].email);
    printf("\n Enter the mobile number you want to add:");
    gets(contacts[location].num.mobile_num);
    printf("\n Enter the home number you want to add:");
    gets(contacts[location].num.home_num);
//printf("%s",contacts[location].last_name);

    location++;


}
void Edit()
{
    char firstname[20];
    char lastname[20];
    char newfirstname[20];
    char newlastname[20];
    char newaddress_street[30];
    char newaddress_flatno[10];
    char newaddress_city[10];
    char newaddress_zipcode[10];
    char newemail[30];
    char newmobile_no[20];
    char newhome_no[10];
    int i,found_at;
    printf("Enter the first name of the contact you want to edit:");
    gets(firstname);
    gets(firstname);
    printf("Enter the last name of the contact you want to edit:");
    gets(lastname);

    for(i=0; i<location; i++)
    {
        if(strcmp(contacts[i].first_name,firstname)==0&&strcmp(contacts[i].last_name,lastname)==0)
        {
            found_at=i;
            break;
        }
    }
    if(found_at==-1)
    {

        printf("Not found");
        return 0;

    }
    else
        display(found_at);
    printf("the first name?\n");
    gets(newfirstname);
    if(strcmp(newfirstname,"\0")==0)
    {

        printf("\n you didn't change it\n");
        strcpy(contacts[found_at].first_name,contacts[found_at].first_name);
    }
    else strcpy(contacts[found_at].first_name,newfirstname);
    printf("the last name?\n");
    gets(newlastname);
    if(strcmp(newlastname,"\0")==0)
    {
        printf("\n you didn't change it\n");

    }
    else strcpy(contacts[found_at].last_name,newlastname);
    printf("the address street ?\n");
    gets(newaddress_street);
    if(strcmp(newaddress_street,"\0")==0)
        printf("\n you didn't change it\n");
    else strcpy(contacts[found_at].adrs.street,newaddress_street);
    printf("the new flat number?\n");
    gets(newaddress_flatno);
    if(strcmp(newaddress_flatno,"\0")==0)
        printf("\n you didn't change it\n");
    else strcpy(contacts[found_at].adrs.flat_no,newaddress_flatno);
    printf("the new city?\n");
    gets(newaddress_city);
    if(strcmp(newaddress_city,"\0")==0)
        printf("\n you didn't change it\n");
    else strcpy(contacts[found_at].adrs.city,newaddress_city);
    printf("the new zip code?\n");
    gets(newaddress_zipcode);
    if(strcmp(newaddress_zipcode,"\0")==0)
        printf("\n you didn't change it\n");
    else strcpy(contacts[found_at].adrs.zipcode,newaddress_zipcode);
    printf("the new email?\n");
    gets(newemail);
    if(strcmp(newemail,"\0")==0)
        printf("\n you didn't change it\n");
    else strcpy(contacts[found_at].email,newemail);
    printf("the new mobile number?\n");
    gets(newmobile_no);
    if(strcmp(newmobile_no,"\0")==0)
        printf("\n you didn't change it\n");
    else strcpy(contacts[found_at].num.mobile_num,newmobile_no);
    printf("the new home number?\n");
    gets(newhome_no);
    if(strcmp(newhome_no,"\0")==0)
        printf("\n you didn't change it\n");
    else strcpy(contacts[found_at].num.home_num,newhome_no);
    display(found_at);


}
/*char s[MAX_LINE];

fgets(s, sizeof(s), stdin);
valid = TRUE;
for (i = 0; i < strlen(s); ++i)
{
    if (!isdigit(s[i]))
    {
        valid = FALSE;
        break;
    }
}*/
void Delete()
{
    int i,found_at=-1;
    char firstname[20];
    char lastname[20];
    /*for(i=0; i<location; i++)
    {
        contacts[i].validcontact=1;
    }*/


    printf("Enter the first name you want to delete:");
    gets(firstname);
    gets(firstname);
    printf("Enter the last name:");
    gets(lastname);
    for(i=0; i<location; i++)
    {
        if(strcmp(contacts[i].first_name,firstname)==0&&strcmp(contacts[i].last_name,lastname)==0)
        {
            found_at=i;
            break;
        }
    }

    if(found_at==-1)
    {

        printf("Not found");
        return 0;

    }
    else
    {
        strcpy(contacts[found_at].first_name,contacts[location-1].first_name);
        strcpy(contacts[found_at].last_name,contacts[location-1].last_name);
        strcpy(contacts[found_at].adrs.street,contacts[location-1].adrs.street);
        strcpy(contacts[found_at].adrs.flat_no,contacts[location-1].adrs.flat_no);
        strcpy(contacts[found_at].adrs.city,contacts[location-1].adrs.city);
        strcpy(contacts[found_at].adrs.zipcode,contacts[location-1].adrs.zipcode);
        strcpy(contacts[found_at].email,contacts[location-1].email);
        strcpy(contacts[found_at].num.home_num,contacts[location-1].num.home_num);
        strcpy(contacts[found_at].num.mobile_num,contacts[location-1].num.mobile_num);
        location--;

       // contacts[found_at].validcontact=0;

    }

    /* for(i=0;i<location;i++){
       if(contacts[i].validcontact==0)
       {
           contacts[i].first_name="\0";
           contacts[i].last_name="\0";
           contacts[i].adrs.street="\0";
           contacts[i].adrs.flat_no="\0";
           contacts[i].adrs.city="\0";
           contacts[i].adrs.zipcode="\0";
           contacts[i].email="\0";
           contacts[i].num.home_num="\0";
           contacts[i].num.mobile_num="\0";
           break;

       }*/
   /* for(i=0; i<location; i++)
    {
        strcpy(contacts[found_at+i].first_name,contacts[found_at+i+1].first_name);
        strcpy(contacts[found_at+i].last_name,contacts[found_at+i+1].last_name);
        strcpy(contacts[found_at+i].adrs.street,contacts[found_at+i+1].adrs.street);
        strcpy(contacts[found_at+i].adrs.flat_no,contacts[found_at+i+1].adrs.flat_no);
        strcpy(contacts[found_at+i].adrs.city,contacts[found_at+i+1].adrs.city);
        strcpy(contacts[found_at+i].adrs.zipcode,contacts[found_at+i+1].adrs.zipcode);
        strcpy(contacts[found_at+i].email,contacts[found_at+i+1].email);
        strcpy(contacts[found_at+i].num.home_num,contacts[found_at+i+1].num.home_num);
        strcpy(contacts[found_at+i].num.mobile_num,contacts[found_at+i+1].num.mobile_num);
    }*/
    strcpy(contacts[found_at].first_name,contacts[location-1].first_name);
        strcpy(contacts[found_at].last_name,contacts[location-1].last_name);
        strcpy(contacts[found_at].adrs.street,contacts[location-1].adrs.street);
        strcpy(contacts[found_at].adrs.flat_no,contacts[location-1].adrs.flat_no);
        strcpy(contacts[found_at].adrs.city,contacts[location-1].adrs.city);
        strcpy(contacts[found_at].adrs.zipcode,contacts[location-1].adrs.zipcode);
        strcpy(contacts[found_at].email,contacts[location-1].email);
        strcpy(contacts[found_at].num.home_num,contacts[location-1].num.home_num);
        strcpy(contacts[found_at].num.mobile_num,contacts[location-1].num.mobile_num);
    printf("contacts after deleting:\n");
    show_all();
}


void print_sorted()
{
    int pass,i;
    contact *temp;

    for(i=0; i<location; i++)
    {

        for(pass=0; pass<location-1; pass++)
        {
            //printf("%d",i);
            if(strcmp(contacts[pass].first_name,contacts[pass+1].first_name)>0)
            {
                strcpy(temp[pass].first_name,contacts[pass].first_name);
                strcpy(contacts[pass].first_name,contacts[pass+1].first_name);
                strcpy(contacts[pass+1].first_name,temp[pass].first_name);
                strcpy(temp[pass].last_name,contacts[pass].last_name);
                strcpy(contacts[pass].last_name,contacts[pass+1].last_name);
                strcpy(contacts[pass+1].last_name,temp[pass].last_name);
                strcpy(temp[pass].adrs.street,contacts[pass].adrs.street);
                strcpy(contacts[pass].adrs.street,contacts[pass+1].adrs.street);
                strcpy(contacts[pass+1].adrs.street,temp[pass].adrs.street);
                strcpy(temp[pass].adrs.city,contacts[pass].adrs.city);
                strcpy(contacts[pass].adrs.city,contacts[pass+1].adrs.city);
                strcpy(contacts[pass+1].adrs.city,temp[pass].adrs.city);
                strcpy(temp[pass].adrs.flat_no,contacts[pass].adrs.flat_no);
                strcpy(contacts[pass].adrs.flat_no,contacts[pass+1].adrs.flat_no);
                strcpy(contacts[pass+1].adrs.flat_no,temp[pass].adrs.flat_no);
                strcpy(temp[pass].adrs.zipcode,contacts[pass].adrs.zipcode);
                strcpy(contacts[pass].adrs.zipcode,contacts[pass+1].adrs.zipcode);
                strcpy(contacts[pass+1].adrs.zipcode,temp[pass].adrs.zipcode);
                strcpy(temp[pass].email,contacts[pass].email);
                strcpy(contacts[pass].email,contacts[pass+1].email);
                strcpy(contacts[pass+1].email,temp[pass].email);
                strcpy(temp[pass].num.home_num,contacts[pass].num.home_num);
                strcpy(contacts[pass].num.home_num,contacts[pass+1].num.home_num);
                strcpy(contacts[pass+1].num.home_num,temp[pass].num.home_num);
                strcpy(temp[pass].num.mobile_num,contacts[pass].num.mobile_num);
                strcpy(contacts[pass].num.mobile_num,contacts[pass+1].num.mobile_num);
                strcpy(contacts[pass+1].num.mobile_num,temp[pass].num.mobile_num);
            }
            else if(strcmp(contacts[pass].first_name,contacts[pass+1].first_name)==0&&strcmp(contacts[pass].last_name,contacts[pass+1].last_name)==1)
            {
                strcpy(temp[pass].first_name,contacts[pass].first_name);
                strcpy(contacts[pass].first_name,contacts[pass+1].first_name);
                strcpy(contacts[pass+1].first_name,temp[pass].first_name);
                strcpy(temp[pass].last_name,contacts[pass].last_name);
                strcpy(contacts[pass].last_name,contacts[pass+1].last_name);
                strcpy(contacts[pass+1].last_name,temp[pass].last_name);
                strcpy(temp[pass].adrs.street,contacts[pass].adrs.street);
                strcpy(contacts[pass].adrs.street,contacts[pass+1].adrs.street);
                strcpy(contacts[pass+1].adrs.street,temp[pass].adrs.street);
                strcpy(temp[pass].adrs.city,contacts[pass].adrs.city);
                strcpy(contacts[pass].adrs.city,contacts[pass+1].adrs.city);
                strcpy(contacts[pass+1].adrs.city,temp[pass].adrs.city);
                strcpy(temp[pass].adrs.flat_no,contacts[pass].adrs.flat_no);
                strcpy(contacts[pass].adrs.flat_no,contacts[pass+1].adrs.flat_no);
                strcpy(contacts[pass+1].adrs.flat_no,temp[pass].adrs.flat_no);
                strcpy(temp[pass].adrs.zipcode,contacts[pass].adrs.zipcode);
                strcpy(contacts[pass].adrs.zipcode,contacts[pass+1].adrs.zipcode);
                strcpy(contacts[pass+1].adrs.zipcode,temp[pass].adrs.zipcode);
                strcpy(temp[pass].email,contacts[pass].email);
                strcpy(contacts[pass].email,contacts[pass+1].email);
                strcpy(contacts[pass+1].email,temp[pass].email);
                strcpy(temp[pass].num.home_num,contacts[pass].num.home_num);
                strcpy(contacts[pass].num.home_num,contacts[pass+1].num.home_num);
                strcpy(contacts[pass+1].num.home_num,temp[pass].num.home_num);
                strcpy(temp[pass].num.mobile_num,contacts[pass].num.mobile_num);
                strcpy(contacts[pass].num.mobile_num,contacts[pass+1].num.mobile_num);
                strcpy(contacts[pass+1].num.mobile_num,temp[pass].num.mobile_num);

            }

        }
    }

    for(i=0; i<location; i++)
        display(i);
}
void save()
{
    int i;
    char line[300];
    FILE *f;
    f=fopen("contact.txt","w");
    for(i=0; i<location; i++)
    {
        fprintf(f,"%s",contacts[i].first_name);
        fprintf(f,",%s",contacts[i].last_name);
        fprintf(f,",%s",contacts[i].adrs.street);
        fprintf(f,",%s",contacts[i].adrs.flat_no);
        fprintf(f,",%s",contacts[i].adrs.city);
        fprintf(f,",%s",contacts[i].adrs.zipcode);
        fprintf(f,",%s",contacts[i].email);
        fprintf(f,",%s",contacts[i].num.mobile_num);
        fprintf(f,",%s\n",contacts[i].num.home_num);
    }
    printf("SAVED!");
    fclose(f);
}

void Quit()

{
    char A[3];
    char a2[3];
    int i;
    printf("All your changes will be discarded!\n do you want to save? yes or no?\n");

    //for(i=0; i<3; i++)
    //{

        scanf("%s",A);
        if(strcmp(A,"yes")==0)
        {

            save();
            exit(0);
        }
        else
        {
            printf("do you want to exit?");
            scanf("%s",a2);
            if(strcmp(a2,"yes")==0)

                exit(0);
            else
                return 0;
        }
    //}
}
void show_all()
{
    int i;
    for(i=0;i<location;i++)
    {
        printf("%s - %s\n",contacts[i].first_name,contacts[i].last_name);
    printf("%s - %s - %s - %s\n",contacts[i].adrs.street,contacts[i].adrs.flat_no,contacts[i].adrs.city,contacts[i].adrs.zipcode);
    printf("%s - %s - %s\n\n",contacts[i].email,contacts[i].num.mobile_num,contacts[i].num.home_num);

    }
}