//functionality ---- Adding new entry
//functionality ---- Printing the entry based on part number
//functionality ---- Modifying on hand , given the part number
//functionality ---- Print the the complete database 
//functionality ---- Terminate
 
#include<stdio.h>
#define MAX_PARTS 100
 
struct part {
    int number;
    char name[40];
    int on_hand;
}dbcreation[MAX_PARTS];
 
int num_parts  = 0;
int find_part(int);
void insert(void);
void search(void);
 
int main(void)
{
    char code;
    char answer = 'y';
    //for(;;)
    do {
        printf("You can perform the following Operations :\n ");
        printf("1. Insert a New Part (i)\n");
        printf("2. Search operation (s)\n");
        printf("3. Quit(q)\n");
        printf("Enter operation code: ");
        scanf(" %c", &code);
        
    
        while(getchar()!= '\n')
            ;
        
        switch(code) {
            case 'i': 
                insert();
                printf("%d", num_parts);
                printf("\n****Part Details inserted successfully !****\n");
                break;
            case 's': 
                search();
                break;
            case 'q': 
                return 0;
            default : printf("Please enter legal code\n");
        }
    
        printf("\n");
    
        printf("Do you want to continue? (y or n)\n");
        scanf(" %c",&answer);
    } while((answer == 'y') || (answer == 'Y'));
    
    return 0x00;
    
}
 
int find_part(int part_no) { 
    int i;
 
    for(i = 0; i < num_parts; i++)
        if(dbcreation[i].number == part_no)
            return i;
    
    return -1;
}
 
void insert(void) {
    int part_number;
 
    if(num_parts == MAX_PARTS){
        printf("Database is full; can't add more parts\n");
        return;
    }
 
    printf("Enter part number : ");
    scanf("%d", &part_number);
 
    if(find_part(part_number) >= 0) {
        printf("\n Part already exists \n");
        //exit(0);
        return;
    }
    
    dbcreation[num_parts].number = part_number;
    printf("Enter part name : ");
    //gets(dbcreation[num_parts].name);
    scanf("%s", dbcreation[num_parts].name);
    printf("Enter quantity on hand : ");
    scanf("%d", &dbcreation[num_parts].on_hand);
    num_parts = num_parts + 1;  
    printf("%d", num_parts);
}
 
void search(void) {
    int number;
    int i;
 
    printf("Enter part number: ");
    scanf("%d", &number);
    i = find_part(number);
 
    if(i >= 0) {
        printf("Part name : %s\n", dbcreation[i].name);
        printf("Enter quantity on hand: %d\n", dbcreation[num_parts].on_hand);
    }
    else 
        printf("Part Not Found");
}