#include <iostream>
#include <cstring>
#include <cctype>

using namespace std;


struct Pet {
    char* name;
    char* type;
    int age;
    float price;
};


const int MAX_PETS = 5;
Pet* pets[MAX_PETS];
int numPets = 0;


void displayMenu();
void addPet();
void displayPets();
void buyPet();
void searchPet();
void cleanupMemory();

int main() {
    char choice;

    do {
        displayMenu();
        cout << "----------------------------------------\n";
        cout << "•Enter your choice: ";
        cin >> choice;
        cout << "----------------------------------------\n";
        switch(tolower(choice)) {
            case 'a':
                addPet();
                break;
            case 'b':
                displayPets();
                break;
            case 'c':
                buyPet();
                break;
            case 'd':
                searchPet();
                break;
            case 'e':
                cout << "Thankyou comeback again!!.\n";
                cout << "________________________________________\n";
                cleanupMemory(); 
                break;
            default:
                cout << "Invalid choice. Please try again.\n";
                cout << "________________________________________\n";
        }
    } while(tolower(choice) != 'e');

    return 0;
}

   
    
void displayMenu() {
    cout << "✉️: [email protected]\n";
    cout << "📞: 09918268831\n";
    cout << "----------------------------------------\n";
    cout << "|🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾|\n";
    cout << "|🐾🐾🐾🦍Mac's Friendly Pet Shop 🐾🐾🐾|\n";  
    cout << "|🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾|\n";
    cout << "----------------------------------------\n";
    cout << "|A. Add a pet              |     ➕    |\n";
    cout << "----------------------------------------\n";
    cout << "|B. Show available pets    |     🐘    |\n";
    cout << "----------------------------------------\n";
    cout << "|C. Buy a pet              |     💲    |\n";
    cout << "----------------------------------------\n";
    cout << "|D. Find details of pet    |     🔎    |\n";
    cout << "----------------------------------------\n";
    cout << "|E. Quit                   |     ❌    |\n";
    cout << "----------------------------------------\n";
    cout << "________________________________________\n";
}

void addPet() {
    if(numPets >= MAX_PETS) {
        cout << "Sorry, the pet shop is full.\n";
        cout << "________________________________________\n";
        return;
    }

    pets[numPets] = new Pet; 

    pets[numPets]->name = new char[50]; 
    cout << "Pet name: ";
    cin >> pets[numPets]->name;

    pets[numPets]->type = new char[50]; 
    cout << "Pet type: ";
    cin >> pets[numPets]->type;

    cout << "Pet age: ";
    cin >> pets[numPets]->age;
    cout << "Pet price: ";
    cin >> pets[numPets]->price;

    numPets++;
    cout <<"========================================\n";
    cout << "Pet has been added.\n";
    cout <<"========================================\n";
}

void displayPets() {
    if(numPets == 0) {
        cout <<"########################################\n";
        cout << "No pets available.\n";
        cout <<"########################################\n";
        return;
    }
    cout <<"××××××××××××××××××××××××××××××××××××××××\n";
    cout << "Available Pets:\n";
    cout <<"××××××××××××××××××××××××××××××××××××××××\n";
    for(int i = 0; i < numPets; i++) {
        cout<<"🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾\n";
        cout<< "Name: " << pets[i]->name <<endl;
        cout<< "Type: " << pets[i]->type << endl;
        cout<< "Age: " << pets[i]->age <<endl;
        cout<< "Price: ₱" << pets[i]->price << endl;
        cout<<"🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾🐾\n";
    }
}

void buyPet() {
    if(numPets == 0) {
        cout <<"########################################\n";
        cout << "No pets available to buy.\n";
        cout <<"########################################\n";
        return;
    }

    displayPets();
    int choice;
    cout <<"########################################\n";
    cout << "Enter the number of the pet you want to buy: \n";
    cout <<"########################################\n";
    cin >> choice;

    if(choice < 1 || choice > numPets) {
        cout << "Invalid choice.\n";
        return;
    }

    cout << "You bought " << pets[choice - 1]->name << ". Thank you!\n";

    delete[] pets[choice - 1]->name; 
    delete[] pets[choice - 1]->type; 
    delete pets[choice - 1]; // Free memory for the pet

    // Remove the bought pet by shifting remaining pets
    for(int i = choice - 1; i < numPets - 1; i++) {
        pets[i] = pets[i + 1];
    }
    numPets--;
}

void searchPet() {
    if(numPets == 0) {
        cout <<"########################################\n";
        cout << "No pets available to search.\n";
        cout <<"########################################\n";
        return;
    }

    char searchName[50];
    cout << "Enter the name of the pet you want to search: ";
    cin >> searchName;

    for(int i = 0; i < numPets; i++) {
        if(strcmp(pets[i]->name, searchName) == 0) {
            cout << "Pet found:\n";
            cout << "Name: " << pets[i]->name <<endl;
            cout << ", Type: " << pets[i]->type <<endl;
            cout<< ", Age: " << pets[i]->age <<endl;
            cout<< ", Price: ₱" << pets[i]->price << endl;
            return;
        }
    }

    cout << "Pet not found.\n";
}

void cleanupMemory() {
    
    for(int i = 0; i < numPets; i++) {
        delete[] pets[i]->name;
        delete[] pets[i]->type;
        delete pets[i];
    }
}