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

typedef struct node {
    int checkNumber;
    char date[9], to[41], description[81]; //arrays one size larger to account for terminating char
    double amount;
    struct node *next;

} node;

struct node *head = NULL;

node *createCheck(int checkNumber, char *date, char *to, char *description, double amount, node *next) {
    node *checkNode = (node *) malloc(sizeof(node));

    if (checkNode == NULL) {
        printf("Error creating a new node.\n");
        exit(0);
    }

    checkNode->checkNumber = checkNumber;
    strcpy(checkNode->date, date);
    strcpy(checkNode->to, to);
    strcpy(checkNode->description, description);
    checkNode->amount = amount;
    checkNode->next = next;

    return checkNode;
}

void add(node *head, node *node) {

    if (head == NULL) {
        printf("\nEntering head == NULL check");
        head = malloc(sizeof(node));
        *head = *node;
        printf("*head = *node");
        node->next = NULL;

    } else {
        struct node *currentNode = head;
        while (head->next != NULL) {
            currentNode = currentNode->next;
        }
        currentNode->next = node;
    }

}

void printAllNodes(struct node *head) {
    struct node *currentNode = head;
    while (currentNode != NULL) {
        printf("\n%i", currentNode->checkNumber);
    }

}

int main() {

    struct node *firstNode = createCheck(1, "123456", "someone", "Rent", 123.23, NULL);
    struct node *secondNode = createCheck(2, "123456", "someone", "Rent", 123.23, NULL);
    struct node *thirdNode = createCheck(3, "123456", "someone", "Rent", 123.23, NULL);

    printf("All nodes created");
    add(head, firstNode);
    printf("\nFirst node added");
    add(head, secondNode);
    printf("\nsecond node added");
    add(head, thirdNode);
    printf("\nthird node added");
    printAllNodes(head);

    return 0;
}