#include "stdlib.h"
#include "stdio.h"
#include "string.h"

typedef struct {
    int day;
    char month[4];
    int year;
}
DATE;

typedef struct {
    const char* pFirstName;
    const char* pLastName;
    const char* pNationality;
    DATE birthDate;

}
STUDENT;

int exam(STUDENT *pStudents, int nStudents, const char *pPattern);

int main() {
    STUDENT students[] = { { "John", "Smith", "Britain",{ 1, "Feb", 2000 } },{ "Mary", "Weaver", "USA",{ 3, "Jan", 1999 } } };
    const char *oneStudent = "Mary, Weaver born 3 January 1999 from USA";
    printf("%s\n", oneStudent);

    int result = exam(students, 2, oneStudent);
    printf("%d\n", result);

    printf("Press ENTER key to Continue\n");
    getchar();

    return 0;
}
// "<last-name>, <first-name> born <day> <month-in-english> <year> from <country>"
int exam(STUDENT *pStudents, int nStudents, const char *pPattern) {
    int result = 0;
    int sizeOfString;
    char *holderString = (char*)malloc(strlen(pPattern) + 1);
    strcpy_s(holderString, strlen(pPattern) + 1, pPattern);


    sizeOfString = (int)(strchr(holderString, ',') - holderString);
    char* firstName = (char*)malloc(sizeOfString + 1);//!!!!!!!!
    firstName[sizeOfString] = '\0';
    strncpy_s(firstName, sizeOfString + 2, holderString, sizeOfString);
    holderString = strchr(holderString, ',') + 2;

    sizeOfString = (int)(strchr(holderString, ' ') - holderString);
    char* lastName = (char*)malloc(sizeOfString + 1); //!!!!!!!!!!!
    lastName[sizeOfString] = '\0';
    strncpy_s(lastName, sizeOfString + 2, holderString, sizeOfString);
    holderString = strchr(holderString, ' ') + 6;

    int dayOfMonth = atoi(holderString); //!!!!!!!!
    holderString = strchr(holderString, ' ') + 1;

    sizeOfString = (int)(strchr(holderString, ' ') - holderString);
    char* month = (char*)malloc(sizeOfString + 1); //!!!!!!!!!!!
    month[sizeOfString] = '\0';
    strncpy_s(month, sizeOfString + 2, holderString, sizeOfString);
    holderString = strchr(holderString, ' ') + 1;

    int year = atoi(holderString); //!!!!!!!!
    holderString = strchr(holderString, ' ') + 6;

    printf("%s\n", firstName);
    printf("%s\n", lastName);
    printf("%i\n", dayOfMonth);
    printf("%s\n", month);
    printf("%i\n", year);
    printf("%s\n", holderString);

    if (pStudents == 0 || nStudents == 0) {
        return 0;
    }


    for (int i = 0; i < nStudents; i++) {
        if (strcmp(pStudents[i].pLastName, lastName) == 0 && strcmp(pStudents[i].pFirstName, firstName) == 0 && pStudents[i].birthDate.day == 1 && strncmp(month, pStudents[i].birthDate.month, dayOfMonth) == 0 && pStudents[i].birthDate.year == year && strcmp(pStudents[i].pNationality, holderString) == 0) {
            result = 1;
        }
    }

    return result;
}