ISBNPrefix.cpp

#include <iostream>
#include <fstream>
#include <sstream>
#include <string>
#include "ISBNPrefix.h"
#include "ISBN.h"

using namespace std;

int isValid(const char str[]){
    int length=0, run=0, a, b, checkint=0, hold, total=0;
    string check;

    cout << str << endl;
    length=strlen(str);
    cout << length << endl;
    if(length==10)
        run=0;

    if(run==0){
        check=str;
        if(str[9]=='x'){
            b=10;
            cout << "check with x: " << check << endl;
            for(a=8;a>=0;a--){
                hold = (int)check[a];
                hold = hold * b;
                total = total + hold;
                b--;
            }
            total = total + 10;
            if(total%11!=0)
                run=1;
        }
        else{
            b=10;
            checkint = atoi (check.c_str());
            cout << "At x: " << check << endl;
            for(a=0;a<=8;a++){
                hold = (check[a] - '0');
                cout << "THIS IS HOLD" << hold << endl;
                hold = (hold*b);
                cout << "THIS IS HOLD AFTER MULTIPLYING" << hold << endl;
                total = total + hold;
                cout << "THIS IS TOTAL" << total << endl;
                b--;
            }
            total = total + (check[a]-'0');
            cout << "THIS IS TOTAL" << total << endl;
            if(total%11!=0)
                run=1;
        }

    }
    cout << "THIS IS RUN AT THE END: " << run << endl;
    if(run!=0)
        return 0;
    else
        return 1;

}


int isRegistered(FILE* fp, const char str[], char area[], char publisher[], char title[]){
    int intarea, finished=0, a, length=1, check=1, valid, titlelength, areavalid, publishervalid, truth=1;
    char compare[80], hold[80], holdtwo[80];
    cout << "IN ISREGISTERED" << endl;
    valid=isValid(str);
    cout << "THIS IS VALID" << endl;
if(valid==1){
    cout << "INSIDE VALID" << endl;
    while(finished==0){
        cout << "IN WHILE IN REGISTERED" << endl;
        for(a=0;a<length;a++)
            compare[a]=str[a];

        compare[a+1]='\0';
        cout << "THIS IS COMPARE: " << compare << endl;
        intarea = atoi (compare);
        cout << "THIS IS INTAREA: " << intarea << endl;
        truth=registeredArea(fp, intarea);
        if(truth==0){
            finished=1;
            area=compare;
            areavalid=0;
        }
        else if(truth==1){
            areavalid=1;
            if(length < 6)
                length++;
            else if(length > 5)
                finished=1;
        }
    }
    finished=0;
    truth=0;
    while(finished==0){

        if(check < 10)
            cout << "IN SECOND WHILE" << endl;

        for(a=0;a<check;a++)
            holdtwo[a]=str[a+length];


        holdtwo[check]='\0';
        for(a=0;a<2;a++)
            cout << holdtwo[a] << endl;

        truth=registeredAP(fp, intarea, holdtwo);
        if(truth==0){
            finished=1;
            publisher=holdtwo;
            publishervalid=0;
        }
        else if(truth==1)
            publishervalid=1;

            check++;
    }
    length=check+length;
    titlelength=(9-length);
    for(a=0;a<titlelength;a++)
        title[a]=str[length];


    }
    if(areavalid==0 && publishervalid==0)
        return 0;
    else
        return 1;
}