#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>

/* ================================== CAR ====================================== */

struct Car {
    const char *brand;
    const char *model;
} Car;

struct Car *car_new(const char *brand, const char *model) {
    struct Car *car = malloc(sizeof(Car));
    if(!car) {
        exit(EXIT_FAILURE);
    }
    car->brand = brand;
    car->model = model;
    return car;
}

/* ============================================================================= */


/* ================================== CATALOG ================================== */

#define MAX_CATALOG_SIZE 3

struct Catalog {
    int number_of_contained_cars;
    struct Car *cars[];
} Catalog;

struct Catalog *catalog_new() {
    struct Catalog *catalog = malloc(sizeof(Catalog));
    for(int i=0; i<MAX_CATALOG_SIZE; i++) {
        // Qui alloco la memoria per le celle dell'array
        catalog->cars[i] = malloc(sizeof(Car));
    }
    return catalog;
}

bool catalog_is_full(struct Catalog catalog) {
    return catalog.number_of_contained_cars == MAX_CATALOG_SIZE;
}

void catalog_add(const struct Car *car, struct Catalog *catalog) {
    if(catalog_is_full(*catalog)) {
        printf("Catalog full");
        exit(EXIT_FAILURE);
    }
    *catalog->cars[catalog->number_of_contained_cars] = *car;
    catalog->number_of_contained_cars++;
}

void catalog_display(const struct Catalog *catalog) {
    for (int i=0; i<catalog->number_of_contained_cars; i++) {
        struct Car *car = catalog->cars[i];
        printf("%s | %s\n", car->brand, car->model);
    }
}

struct Catalog *catalog_load(char *file_path) {
    // Qui andrebbe la lettura da file, io per fare prima ho creato direttamente il catalogo
    // nel codice
    struct Catalog *catalog = catalog_new();
    struct Car *alfa = car_new("Alfa Romeo", "Giulia");
    struct Car *ferrari = car_new("Ferrari", "Enzo");
    catalog_add(alfa, catalog);
    catalog_add(ferrari, catalog);
    return catalog;
}

/* ===================================== MAIN ======================================= */


int main() {
    struct Catalog *catalog = catalog_load("catalog.txt");
    printf("Catalog loaded.\n");
    int choice = 0;
    do {
        printf("\nWhat do you want to do?\n");
        printf("1- Display catalog\n");
        printf("2- Add car to catalog\n");
        scanf("%d", &choice);
        switch (choice) {
            case 1: catalog_display(catalog); break;
            case 2: {
                printf("Brand:\n");
                char *brand = malloc(sizeof(char *));
                scanf("%s", brand);
                printf("Model:\n");
                char *model = malloc(sizeof(char *));
                scanf("%s", model);
                struct Car *car = car_new(brand, model);
                catalog_add(car, catalog);
            } break;
            case 0: exit(EXIT_SUCCESS);
            default: exit(EXIT_SUCCESS);
        }
    } while (choice != 0);
    free(catalog);
}