// speed_friending.c
//
// Written by YOUR-NAME (YOUR-ZID)
// on TODAYS-DATE
//
// Finds the first person in a room who shares an individual's
// favourite colour.

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

// Constants
#define MAX_PEOPLE 100
#define MAX_LENGTH 32

struct person {
    char name[MAX_LENGTH];
    char favourite_colour[MAX_LENGTH];
};

// Function prototypes
void find_match(struct person individual, struct person people[MAX_PEOPLE],
                int num_people);
struct person read_person(void);
int read_people(struct person people[MAX_PEOPLE]);
int scan_token(char *buffer, int buffer_size);

// -----------------------------------------------------------------------------
//////////////// DO NOT CHANGE THE MAIN FUNCTION ///////////////////////////////

int main(void) {
    printf("Enter your name and favourite colour: ");
    struct person individual = read_person();

    struct person people[MAX_PEOPLE];
    printf("Enter everyone else in the room:\n");
    int num_people = read_people(people);

    printf("\n");
    find_match(individual, people, num_people);

    return 0;
}

// -----------------------------------------------------------------------------
// YOUR FUNCTIONS
// -----------------------------------------------------------------------------

// Find the first person in the array who shares the individual's
// favourite colour, and print the result.
void find_match(struct person individual, struct person people[MAX_PEOPLE],
                int num_people) {
    // TODO: Complete this function
}

// -----------------------------------------------------------------------------
// PROVIDED FUNCTIONS
// -----------------------------------------------------------------------------
// DO NOT CHANGE ANY OF THE CODE BELOW HERE

// Read people from stdin into the given array, returning how many
int read_people(struct person people[MAX_PEOPLE]) {
    int num_people = 0;

    while (num_people < MAX_PEOPLE &&
           scan_token(people[num_people].name, MAX_LENGTH) == 1 &&
           scan_token(people[num_people].favourite_colour, MAX_LENGTH) == 1) {
        num_people++;
    }

    return num_people;
}

// Read a single person from stdin
struct person read_person(void) {
    struct person p;
    scan_token(p.name, MAX_LENGTH);
    scan_token(p.favourite_colour, MAX_LENGTH);

    return p;
}

// scan a single whitespace-separated token from stdin
int scan_token(char *buffer, int buffer_size) {
    if (buffer_size == 0) {
        return 0;
    }

    char c;
    int i = 0;
    int num_scanned = 0;

    scanf(" ");

    while (i < buffer_size - 1 && (num_scanned = scanf("%c", &c)) == 1 &&
           !isspace(c)) {
        buffer[i++] = c;
    }

    if (i > 0) {
        buffer[i] = '\0';
    }

    return num_scanned;
}