use App\Models\Product;

// Example: Update if 'sku' matches, otherwise insert
Product::upsert(
    [
        ['sku' => 'PROD001', 'name' => 'Laptop Pro X', 'price' => 1200.00, 'stock' => 50],
        ['sku' => 'PROD002', 'name' => 'Mechanical Keyboard', 'price' => 150.00, 'stock' => 100],
        ['sku' => 'PROD003', 'name' => 'Gaming Mouse', 'price' => 75.00, 'stock' => 75], // This one might be new
    ],
    ['sku'], // Columns to use to determine if a record already exists
    ['name', 'price', 'stock'] // Columns to update if a match is found
);

// If 'sku' PROD001 exists, its name, price, stock will be updated.
// If 'sku' PROD003 does not exist, a new record will be inserted.