Untitled

#include <iostream>
#include <fstream>
#include <vector>
#include <string>
#include <algorithm>

using namespace std;

struct Product {
    int skuCode;
    string prodName;
    double price;
    int quantity;
    string prodDescription;
};

void addProduct(vector<Product>& inventory);
void removeProduct(vector<Product>& inventory);
void updateProduct(vector<Product>& inventory);
void searchProduct(const vector<Product>& inventory);
void displayProducts(const vector<Product>& inventory);
void saveToFile(const vector<Product>& inventory);
void loadFromFile(vector<Product>& inventory);

int main() {
    vector<Product> inventory;
    loadFromFile(inventory);

    int choice;
    do {
        cout << "\nInventory Management System\n";
        cout << "1. Add Product\n";
        cout << "2. Remove Product\n";
        cout << "3. Update Product\n";
        cout << "4. Search Product\n";
        cout << "5. Display All Products\n";
        cout << "6. Save and Exit\n";
        cout << "Enter your choice: ";
        cin >> choice;

        switch (choice) {
            case 1: addProduct(inventory); break;
            case 2: removeProduct(inventory); break;
            case 3: updateProduct(inventory); break;
            case 4: searchProduct(inventory); break;
            case 5: displayProducts(inventory); break;
            case 6: saveToFile(inventory); break;
            default: cout << "Invalid choice. Please try again.\n";
        }
    } while (choice != 6);

    return 0;
}

void addProduct(vector<Product>& inventory) {
    Product p;
    cout << "Enter SKU Code: ";
    cin >> p.skuCode;
    cin.ignore(); // Clear the buffer
    cout << "Enter Product Name: ";
    getline(cin, p.prodName);
    cout << "Enter Price: ";
    cin >> p.price;
    cout << "Enter Quantity: ";
    cin >> p.quantity;
    cin.ignore(); // Clear the buffer
    cout << "Enter Product Description: ";
    getline(cin, p.prodDescription);
    
    inventory.push_back(p);
    cout << "Product added successfully.\n";
}

void removeProduct(vector<Product>& inventory) {
    int sku;
    cout << "Enter SKU Code of the product to remove: ";
    cin >> sku;

    auto it = remove_if(inventory.begin(), inventory.end(), [sku](Product& p) {
        return p.skuCode == sku;
    });

    if (it != inventory.end()) {
        inventory.erase(it, inventory.end());
        cout << "Product removed successfully.\n";
    } else {
        cout << "Product not found.\n";
    }
}

void updateProduct(vector<Product>& inventory) {
    int sku;
    cout << "Enter SKU Code of the product to update: ";
    cin >> sku;

    for (auto& p : inventory) {
        if (p.skuCode == sku) {
            cout << "Enter new Product Name: ";
            cin.ignore(); // Clear the buffer
            getline(cin, p.prodName);
            cout << "Enter new Price: ";
            cin >> p.price;
            cout << "Enter new Quantity: ";
            cin >> p.quantity;
            cin.ignore(); // Clear the buffer
            cout << "Enter new Product Description: ";
            getline(cin, p.prodDescription);

            cout << "Product updated successfully.\n";
            return;
        }
    }
    cout << "Product not found.\n";
}

void searchProduct(const vector<Product>& inventory) {
    int sku;
    cout << "Enter SKU Code of the product to search: ";
    cin >> sku;

    for (const auto& p : inventory) {
        if (p.skuCode == sku) {
            cout << "Product found:\n";
            cout << "SKU Code: " << p.skuCode << "\n";
            cout << "Product Name: " << p.prodName << "\n";
            cout << "Price: " << p.price << "\n";
            cout << "Quantity: " << p.quantity << "\n";
            cout << "Description: " << p.prodDescription << "\n";
            return;
        }
    }
    cout << "Product not found.\n";
}

void displayProducts(const vector<Product>& inventory) {
    cout << "\nAll Products:\n";
    for (const auto& p : inventory) {
        cout << "SKU Code: " << p.skuCode << "\n";
        cout << "Product Name: " << p.prodName << "\n";
        cout << "Price: " << p.price << "\n";
        cout << "Quantity: " << p.quantity << "\n";
        cout << "Description: " << p.prodDescription << "\n\n";
    }
}

void saveToFile(const vector<Product>& inventory) {
    ofstream file("inventory.txt");
    for (const auto& p : inventory) {
        file << p.skuCode << "\n";
        file << p.prodName << "\n";
        file << p.price << "\n";
        file << p.quantity << "\n";
        file << p.prodDescription << "\n";
    }
    file.close();
    cout << "Inventory saved to file successfully.\n";
}

void loadFromFile(vector<Product>& inventory) {
    ifstream file("inventory.txt");
    if (!file.is_open()) {
        cout << "No existing inventory found.\n";
        return;
    }
    
    Product p;
    while (file >> p.skuCode) {
        file.ignore(); // Clear the buffer
        getline(file, p.prodName);
        file >> p.price;
        file >> p.quantity;
        file.ignore(); // Clear the buffer
        getline(file, p.prodDescription);
        inventory.push_back(p);
    }
    file.close();
    cout << "Inventory loaded from file successfully.\n";
}