// https://dbdiagram.io/d/
// Kraut&Rüben ERD

Table Customer {
  id string [primary key]
  address string
  first_name string
  last_name string
  birth_date timestamp
  email string
  phone string
}

Table Order {
  id string [primary key]
  customer string
  invoice_amount float
  order_date timestamp
}

Table Ingredient {
  id string [primary key]
  designation string
  stock integer
  net_price float
  unit string
  carbohydrates float
  calories integer
  protein float
}

Table Supplier {
  id string [primary key]
  address string
  email string
  phone string
  name string
}

Table Recipe {
  id string [primary key]
  preparation_time integer
  name string
  description string
  instructions string
}

Table Address {
  id string [primary key]
  city string
  street string
  house_number string
  postal_code string
}

Table RecipeContainsIngredients {
  recipe string [primary key]
  ingredient string [primary key]
  amount integer
}

Table SupplierContainsIngredients {
  supplier string [primary key]
  ingredient string [primary key]
  delivery_cost float
  delivery_time integer
}

Table OrderContainsIngredients {
  order string [primary key]
  ingredient string [primary key]
  quantity integer
}

Ref: Order.customer > Customer.id
Ref: Address.id - Customer.address
Ref: Address.id - Supplier.address
Ref: SupplierContainsIngredients.supplier > Supplier.id
Ref: SupplierContainsIngredients.ingredient > Ingredient.id
Ref: OrderContainsIngredients.order > Order.id
Ref: OrderContainsIngredients.ingredient > Ingredient.id
Ref: RecipeContainsIngredients.recipe > Recipe.id
Ref: RecipeContainsIngredients.ingredient > Ingredient.id