code

#include<stdio.h>
#include<windows.h>
#include<pthread.h>
#include<conio.h>
#include<string.h>
#include<time.h>
#define space "\t \t \t"
typedef struct File2
{
    void *portfolio;
    void *watchlist;
    void *account;
    void *transaction_histroy;
} user_t;
void userpage(char *users);
void userpage(char *users)
{
    int max=5,select=1,loop=1;
user_sec:
    while(loop)
    {
        if(select >6||select ==0)
        {
            select =1;
        }
        system("cls");
        system("color 04");
        printf("    Stock Guide\n\n");
        if(select ==1)
        {
            printf("-> portfolio\n");
        }
        else
        {
            printf("   Portfolio\n");
        }
        if(select == 2)
        {
            printf("-> watchlist\n");
        }
        else
        {
            printf("   watchlist\n");
        }
        if(select==3)
        {
            printf("-> stock list\n");
        }
        else
        {
            printf("   stock list\n");
        }
        if(select==4)
        {
            printf("-> account\n");
        }
        else
        {
            printf("   account\n");
        }
        if(select ==5)
        {
            printf("-> Transaction Histroy\n");
        }
        else
        {
            printf("   Transaction histroy\n");
        }
        if(select==6)
        {
            printf("-> EXIT\n");
        }
        else
        {
            printf("   EXIT\n");
        }
        printf("Use the Arrow key's to move and select\n");
        switch(_getch())
        {
        case 'H':
            select--;
            //      goto user_sec;
            break;
        case 'P':
            select++;
            //        goto user_sec;
            break;
        case 13:
            if(select!=6)
            {
                user_choice(select,users);;
            }
            else
            {
                loop=0;
            }
            break;
        }

    }
}
void user_choice(int choice,char *Name)
{
    if(choice==1)
        portfolio(Name);
    else if(choice==2)
        watch_list(Name);
    else if(choice==3)
        stock_list(Name);
    else if(choice==4)
        my_Account(Name);
    else if(choice==5)
        trans_sec(Name);
}
void trans_sec(char* Name)
{

}
void watch_list(char* Name)
{

}
void stock_list(char *Name)
{
    system("cls");
    FILE*fp,*fp1;
    char x;
    if((fp1=fopen("COMPANY_DATA.txt","r"))==NULL)
    {
        fp1=fopen("COMPANY_DATA.txt","w");
        char data[]="|venkys#20#500000$|satin#10#2500000$|ultratech#15#2000000$|polaris#17#250000$|Aditya vision#20#700000$";
        int i=0;
        while(data[i]!='\0')
        {
            x=data[i];
            fputc(x,fp1);
            i++;
        }
         fclose(fp1);
    }
    fp=fopen("COMPANY_DATA.txt","r+");
    int i=0;
    char all[10000];
    while((x = fgetc(fp)) != EOF)
    {
        all[i++] = x;
    }
    all[i] = '\0';
    printf("    Stock list \n");
    printf("Compnay_Name || ||starting price||    ||Volume||    ||MarketCapital\n");
    for(i=0; i<strlen(all); i++)
    {
        if(all[i]=='|')
            i=word(all,i);
        else if(all[i]=='#')
            i=numbers(all,i);
        else
            printf("\n");
    }
    _getch();
}
int word(char *Data,int pos)
{
    int idx=0;
    if(Data[pos++]=='|')
    {
        for(pos; Data[pos]!='#'; pos++,idx++)
            printf("%c",Data[pos]);
    }
        printf("             ");
    return pos-1;
}
int numbers(char *Data,int pos)
{
    char price[1000],share[1000];
    int idx=0;
    if(Data[pos++]=='#')
    {
        while(Data[pos]!='#')
        {
            price[idx++]=Data[pos];
            pos++;
        }
        pos++;
        price[idx]='\0';
        idx=0;
        while(Data[pos]!='$')
        {
            share[idx++]=Data[pos];
            pos++;
        }
        share[idx]='\0';
    }
    long long int market,price_value;
    price_value=char_to_int(price);
    long long int volume=char_to_int(share);
    market=(price_value*volume)*2;
    printf("%d            ",price_value);
    printf("%d             ",volume);
    printf("%d              ",market);
    return pos-1;
}
int char_to_int(char*num)
{

    int length=strlen(num);
    int var=1;
    int i,c=0,temp;
    for(i=0; i<length; i++)
    {
        if(i==0 && num[i]==45 )
        {
            var=-1;
        }
        else
        {
            temp=(num[i]-48);
            c=c*10+temp;
        }
    }
    c=c*var;
    return c;
}
void len(char *source)
{
    int idx;
    for(idx=0; source[idx]!='#'&& source[idx]!='$'; idx++)
    {

    }
    return idx;
}
void my_Account(char *Name)
{
    printf("My Account\n\n");
    printf("Name                :%s\n",Name);
    printf("Starting Investment:50,000\n");
//  printf("Stock Value        :%d",);

}
void portfolio(char *Name)
{

}
int main()
{
    system("color 04");
    printf("WELCOME\n");
    printf("  TO    \n");
    printf("  HELIX  \n");
    printf("Press any Key\n");
    _getch();
    Main_page();
    return 0;
}
int Main_page()
{
    FILE *fp;
    char choice,x;
    char users[100];
    char username[100];
    char password[100];
    int i=0;
main_sec:
    system("cls");
    while(1)
    {
        printf("Helix\n");
        printf("1)login\n");
        printf("2)signup\n");
        printf("3)exit");
        choice=_getch();
        if(choice== 49 || choice ==50 ||choice==51)
            break;
        else
        {
            printf("\nEnter valid choice\n");
            printf("press any key\n");
            _getch();
            system("cls");
        }
    }
    if(choice==49)
    {
        char x,*tempstr;
        char accountsDB[100];
        system("cls");
        printf("Login \n");
        printf("Username:");
        scanf("%s",username);
        printf("\n");
        i=0;
        while(username[i] != '\0')
        {
            users[i] = username[i];
            i++;
        }
        users[i] = '\0';
        i=0;
        printf("Password:");
        while ((x = _getch()) != '\r')
        {
            printf("*");
            password[i++] = x;
        }
        password[i] = '\0';
        i = 0;
        strcat(username, password);
        fp = fopen("PROJECT_DATA_FILE.txt","r");
        while((x = fgetc(fp)) != EOF)
        {
            accountsDB[i++] = x;
        }
        accountsDB[i] = '\0';
        fclose(fp);
        if(NULL == strstr(accountsDB, username))
        {
            printf("\n\n"space space"*Username or password is wrong");
            _getch();
            goto main_sec;
        }
        else
        {
            tempstr = strstr(accountsDB, username);
        }
        i=0;
        while(username[i]!='\0')
        {
            if(username[i]!=tempstr[i])
                break;

            i++;
        }
        if(i==strlen(username))
        {
            userpage(users);
            goto main_sec;
        }
        else
        {
            printf("\n\n*Username or password is wrong");
            _getch();
            goto main_sec;
        }
    }
    if(choice ==50)
    {
        system("cls");
        printf("Signup\n");
        printf("Username:");
        scanf("%s",username);
        i=0;
        while((x = username[i]) != '\0')
        {
            if(x == '|' || x == '#' || x == '$')
            {
                printf("\n*Username must not contain special characters like |, #, $ etc.");
                _getch();
                goto main_sec;
            }
            i++;
        }
        char accountsDB[100];
        fp = fopen("PROJECT_DATA_FILE.txt","r");
        i = 0;
        while((x = fgetc(fp)) != EOF)
        {
            accountsDB[i++] = x;
        }
        fclose(fp);
        char temp_pass[100];
        if(NULL == strstr(accountsDB, username))
        {
            i=0;
            printf("Password:");
            while ((x = _getch()) != '\r')
            {
                printf("*");
                password[i++] = x;
            }
            password[i] = '\0';
            printf("\nRe-Enter password:");
            i = 0;
            while((x = _getch()) != '\r')
            {
                printf("*");
                temp_pass[i++] = x;
            }
            temp_pass[i]='\0';
            if(strcmp(temp_pass,password)==0)
            {
                i = 0;
                fp = fopen("PROJECT_DATA_FILE.txt","a");
                fputc('|',fp);
                while((x = username[i]) != '\0')
                {
                    fputc(x,fp);
                    i++;
                }
                i = 0;
                while((x = password[i]) != '\0')
                {
                    fputc(x,fp);
                    i++;
                }
                fputc('$', fp);
                fputc('1', fp);
                fputc('#', fp);
                fputc('1', fp);
                fclose(fp);
                printf("\n\nSign up successful");
                _getch();
                goto main_sec;
            }
            else
            {
                printf("\n\n*Passwords do not match, try again");
                _getch();
                goto main_sec;
            }
        }
        else
        {
            printf("\n*Username is already taken");
            _getch();
            goto main_sec;
        }
    }
    if(choice==51)
    {
        system("cls");
        printf("Exit\n\n");
        printf("Are You Sure Want to Exit\n");
        printf("Enter y/n\n");
        x=_getch();
        if(x=='n'||x=='N')
            goto main_sec;
        else
        {
            printf("Thank u for visiting\n");
        }
    }
}