Implemented task 8

.gitignore

@@ -2,6 +2,8 @@
 /dist
 /node_modules
 
+.env
+
 # Logs
 logs
 *.log

cart.sql

@@ -0,0 +1,33 @@
+CREATE TYPE card_status AS ENUM ('OPEN', 'ORDERED');
+CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
+
+CREATE TABLE carts (
+   id uuid PRIMARY KEY DEFAULT uuid_generate_v4(),
+   user_id uuid NOT NULL,
+   created_at DATE NOT NULL,
+   updated_at DATE NOT NULL,
+   status card_status,
+   FOREIGN KEY (user_id) REFERENCES users (id)
+);
+
+CREATE TABLE cart_items (
+   product_id uuid DEFAULT uuid_generate_v4(),
+   cart_id uuid,
+   count int,
+   FOREIGN KEY (cart_id) REFERENCES carts (id)
+   ON DELETE CASCADE ON UPDATE CASCADE
+);
+
+INSERT INTO carts (id, user_id, created_at, updated_at, status) VALUES
+(uuid_generate_v4(), uuid_generate_v4(), CURRENT_DATE, CURRENT_DATE, 'OPEN'),
+(uuid_generate_v4(), uuid_generate_v4(), CURRENT_DATE, CURRENT_DATE, 'ORDERED');
+
+WITH inserted_carts AS (
+  SELECT id FROM carts ORDER BY created_at DESC LIMIT 2
+)
+
+INSERT INTO cart_items (product_id, cart_id, count) SELECT
+uuid_generate_v4(),
+inserted_carts.id,
+CAST(RANDOM() * 10 + 1 AS INT)
+FROM inserted_carts, generate_series(1,5);