make db consistent with readme

app/Migrations/create-schema.sql

@@ -4,50 +4,41 @@
 
 -- Our known customers, may need more fields
 CREATE TABLE IF NOT EXISTS customers (
-  customer_id int PRIMARY KEY,
+    customer_id INT PRIMARY KEY,
-  customer_name varchar(100),
+    customer_name VARCHAR(50) NOT NULL,
-  customer_address varchar(255)
+    customer_address VARCHAR(50) NOT NULL,
 );
 
 -- Orders from customers.
--- Keep in mind that the delivery_date may be NULL
 CREATE TABLE IF NOT EXISTS orders (
-  order_id int PRIMARY KEY,
+    order_id INT PRIMARY KEY,
-  customer_id int,
+    customer_id INT NOT NULL,
-  order_date date DEFAULT NOW,
+    cookie_id INT NOT NULL,
-  delivery_date date, -- Set when the order hits the truck
+    order_date DATE NOT NULL DEFAULT CURRENT_DATE CHECK (order_date >= CURRENT_DATE),
-  FOREIGN KEY (customer_id) REFERENCES customers(customer_id)
+    FOREIGN KEY (customer_id) REFERENCES customer(customer_id),
+    FOREIGN KEY (cookie_id) REFERENCES cookie(cookie_id)
 );
 
 --------------------------------------------
 -- Recipe/Cookie related tables
 --------------------------------------------
 
--- Recipes for all the cookies (essentially a list of cookies)
-CREATE TABLE IF NOT EXISTS recipes (
-  recipe_id int PRIMARY KEY,
-  recipe_name varchar(100) UNIQUE -- Cookie name
-);
-
--- "The company has a raw materials warehouse in which 
---  all ingredients used in their production are stored."
-
 -- Describes ingredients and stock.
--- Each ingredient has 'amount' of 'unit' in stock
+CREATE TABLE IF NOT EXISTS raw_materials (
-CREATE TABLE IF NOT EXISTS ingredients (
+    ingredient_id INT PRIMARY KEY,
-  ingredient_id int PRIMARY KEY,
+    ingredient_name VARCHAR(50) NOT NULL UNIQUE,
-  ingredient_name varchar(100),
+    ingredient_quantity INT NOT NULL,
-  amount int,
+    unit VARCHAR(50) NOT NULL CHECK (unit IN ('g', 'ml'))
-  unit varchar(50)
 );
 
--- Describes what ingredients goes into what recipe
+-- When did we get the ingredients?
--- Each recipe requires 'amount' of 'ingredient'
+CREATE TABLE IF NOT EXISTS raw_materials_deliveries (
-CREATE TABLE IF NOT EXISTS recipe_contents (
+    delivery_id INT PRIMARY KEY,
-  recipe_id int,
+    ingredient_id INT NOT NULL,
-  ingredient_id int,
+    delivery_date DATE NOT NULL,
-  amount int,
+    delivery_quantity INT NOT NULL,
-  PRIMARY KEY (recipe_id, ingredient_id)
+    unit VARCHAR(50) NOT NULL CHECK (unit IN ('g', 'ml')),
+    FOREIGN KEY (ingredient_id) REFERENCES raw_materials(ingredient_id)
 );
 
 --------------------------------------------
@@ -56,28 +47,20 @@ CREATE TABLE IF NOT EXISTS recipe_contents (
 
 -- Pallets are used to store cookies for delivery
 CREATE TABLE IF NOT EXISTS pallets (
-  pallet_id int PRIMARY KEY,
+    pallet_id INT PRIMARY KEY,
-  recipe_id int,
+    cookie_id INT NOT NULL,
-  order_id int,
+    order_id INT NOT NULL,
-  FOREIGN KEY (recipe_id) REFERENCES recipes(recipe_id),
+    status VARCHAR(50) NOT NULL CHECK (status IN ('freezer', 'delivered', 'blocked')),
-  FOREIGN KEY (order_id) REFERENCES Orders(order_id)
+    production_date DATE NOT NULL,
-);
+    FOREIGN KEY (cookie_id) REFERENCES cookie(cookie_id)
-
+    FOREIGN KEY (order_id) REFERENCES orders(order_id)
--- What does the pallet contain?
-CREATE TABLE IF NOT EXISTS pallet_contents (
-  pallet_id int,
-  ingredient_id int,
-  amount int,
-  PRIMARY KEY (pallet_id, ingredient_id),
-  FOREIGN KEY (pallet_id) REFERENCES pallets(pallet_id),
-  FOREIGN KEY (ingredient_id) REFERENCES ingredients(ingredient_id)
 );
 
 -- Has an order been delivered?
--- When the truck is loaded, a delivery is considered done
+CREATE TABLE IF NOT EXISTS deliveries (
-CREATE TABLE IF NOT EXISTS delivery_bill (
+    delivery_id INT PRIMARY KEY,
-  delivery_id int PRIMARY KEY,
+    pallet_id INT NOT NULL,
-  order_id int,
+    customer_name VARCHAR(50) NOT NULL,
-  delivery_date date DEFAULT NOW,
+    delivery_date DATE NOT NULL DEFAULT CURRENT_DATE CHECK (delivery_date >= CURRENT_DATE),
-  FOREIGN KEY (order_id) REFERENCES Orders(order_id)
+    FOREIGN KEY (pallet_id) REFERENCES pallets(pallet_id)
 );