tmp_warenwirtschaft

class Inventory {
  constructor() {
    this.productList = [];
  }

  // Add a product
  addProduct(product) {
    this.productList.push(product);
    console.log(`Product '${product.name}' added.`);
  }

  // Update stock
  updateStock(id, quantity) {
    const product = this.productList.find((p) => p.id === id);
    if (product) {
      product.stock += quantity;
      console.log(`Stock of '${product.name}' updated: ${product.stock}`);

      // Check for reorder level
      if (product.stock < product.reorderLevel) {
        console.log(`Warning: Stock of '${product.name}' is below the reorder level (${product.reorderLevel}). Consider restocking.`);
      }
    } else {
      console.error("Product not found.");
    }
  }

  // Remove a product
  removeProduct(id) {
    this.productList = this.productList.filter((p) => p.id !== id);
    console.log(`Product with ID ${id} removed.`);
  }

  // Display all products
  displayProducts() {
    console.table(this.productList.map((product) => ({
      ID: product.id,
      Name: product.name,
      "Purchase Price": `${product.purchasePrice.toFixed(2)} EUR`,
      "Sale Price": `${product.salePrice.toFixed(2)} EUR`,
      Margin: `${product.calculateMargin().toFixed(2)} EUR`,
      Stock: product.stock,
      Location: product.location,
      "Expiry Date": product.expiryDate,
      Charge: product.charge
    })));
  }

  // Inventory analysis
  analyzeInventory() {
    const totalValue = this.productList.reduce((sum, product) => sum + product.salePrice * product.stock, 0);
    console.log(`Total inventory value: ${totalValue.toFixed(2)} EUR`);

    const lowStockProducts = this.productList.filter((product) => product.stock === 0);
    if (lowStockProducts.length > 0) {
      console.log("Products with zero stock:");
      console.table(lowStockProducts);
    } else {
      console.log("No products with zero stock.");
    }
  }
}

// // Example usage
// const inventory = new Inventory();

// // Create products
// const product1 = new Product(1, "Laptop", 800.0, 1200.0, 10, "Shelf A1", "2025-12-31", "CH001", 5);
// const product2 = new Product(2, "Mouse", 15.0, 25.0, 50, "Shelf B2", "2024-06-15", "CH002", 20);
// const product3 = new Product(3, "Keyboard", 30.0, 45.0, 0, "Shelf C3", "2024-12-01", "CH003", 10);

// // Add products
// inventory.addProduct(product1);
// inventory.addProduct(product2);
// inventory.addProduct(product3);

// // Display products
// inventory.displayProducts();

// // Update stock
// inventory.updateStock(1, -2);
// inventory.updateStock(3, 10);

// // Remove a product
// inventory.removeProduct(2);

// // Analyze inventory
// inventory.analyzeInventory();