/* Author:  Susan Mitchell */
/* File  :  Project1.c     */

#include <stdio.h>
#include "Inventory.h"

Cd* getCd();

void main()
{
	char artist[MAXSIZE_ARTIST];
	char title[MAXSIZE_TITLE];
	int i, count;
        Cd* aCd;
	CdNode* aNode;

	/* Initialize the list and print it */

	printf("*** Initializing list\n");

        initializeList();
	printf("\n\n");
	printList();

	/* Read the cd information and place into list from the most recent */
	/* to earliest received, then print the list */

        printf ("\n\n*** Creating original list\n");

	scanf("%d", &count);
	for (i = 1; i <= count; i++) {
	   aCd = getCd();
           insertNode(aCd);
        }

        printf("\n\n");
        printList();

	/* Search for a given cd based on its artist and title, then print */
	/* the cd information */

	printf("\n\n*** Searching for a cd\n");

	scanf("%*c");
	printf("\n\nEnter artist (%d characters maximum):\n", MAXSIZE_ARTIST);
	gets(artist);
	printf("Enter title (%d characters maximum):\n", MAXSIZE_TITLE);
	gets(title);
	
	aNode = findNode(artist, title);
	if (aNode == NULL)
	   printf("Cd not in inventory\n");
	else {
	   printf("Cd found:\n\n");
	   printCd(aNode->info);
	}

	/* Compute and display number of nodes in list and total inventory */
	/* value */

	printf("\n\n*** Computing number of nodes and inventory value\n");

	computeNumNodes();
	computeValue();

	printf("\nNumber of nodes = %d\n", computeNumNodes());
	printf("Inventory value = $%1.2f\n", computeValue());

	/* Print all cds for which the number left in stock is zero */

	printf("\n\n*** Printing out-of-stock cds\n");

	printOutOfStock();

	/* Delete all cds for which the number left in stock is zero and */
	/* print the list */

	printf("\n\n*** Deleting out-of-stock cds\n");

	deleteOutOfStock();

	printf("\n\n");
	printList();

	/* Empty the list and print it to be sure it is empty */

	printf("\n\n*** Emptying the list\n");

	emptyList();

	printf("\n\n");
	printList();

        printf ("\n\n*** End of Program ***\n");
}

/*  This functions gets the information for a cd from standard input   */
/*  and returns a pointer to a cd structure intialized with the values */
/*  entered.                                                           */

Cd* getCd() {

    char artist[MAXSIZE_ARTIST + 1];
    char title[MAXSIZE_TITLE + 1];
    int month;
    int day;
    int year;
    int numInStock;
    float price;

    scanf("%*c");
    printf("\n\nEnter artist (%d characters maximum):\n", MAXSIZE_ARTIST);
    gets(artist);
    printf("Enter title (%d chars. max.):\n", MAXSIZE_TITLE);
    gets(title);
    printf("Enter date received (mm dd yyyy):\n"); 
    scanf("%d%d%d", &month, &day, &year);
    printf("Enter number in stock:\n");
    scanf("%d", &numInStock);
    printf("Enter price:\n");
    scanf("%f", &price);

    return (createCd(artist, title, month, day, year, numInStock, price));
}