"""
Проверка созданных заказов и резервов
"""
import os
import django

os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'myproject.settings')
django.setup()

from django.db import connection

with connection.cursor() as cursor:
    cursor.execute("SET search_path TO grach")

    # Считаем заказы
    cursor.execute("SELECT COUNT(*) FROM grach.orders_order")
    orders_count = cursor.fetchone()[0]
    print(f"Заказов: {orders_count}")

    # Считаем позиции заказов
    cursor.execute("SELECT COUNT(*) FROM grach.orders_orderitem")
    items_count = cursor.fetchone()[0]
    print(f"Позиций в заказах: {items_count}")

    # Считаем резервы
    cursor.execute("SELECT COUNT(*) FROM grach.inventory_reservation")
    reservations_count = cursor.fetchone()[0]
    print(f"Резервов: {reservations_count}")

    # Детали по заказам без резервов
    print("\nПервые 10 позиций без резервов:")
    cursor.execute("""
        SELECT
            o.order_number,
            oi.id as item_id,
            p.name as product_name,
            oi.quantity,
            COUNT(r.id) as reservations_count
        FROM grach.orders_order o
        JOIN grach.orders_orderitem oi ON oi.order_id = o.id
        LEFT JOIN grach.products_product p ON p.id = oi.product_id
        LEFT JOIN grach.inventory_reservation r ON r.order_item_id = oi.id
        GROUP BY o.order_number, oi.id, p.name, oi.quantity
        HAVING COUNT(r.id) = 0
        ORDER BY o.order_number
        LIMIT 10
    """)
    rows = cursor.fetchall()
    if rows:
        for row in rows:
            print(f"  Заказ {row[0]}: ItemID={row[1]}, Товар=\"{row[2]}\", Кол-во={row[3]}, Резервов={row[4]}")
    else:
        print("  Все позиции имеют резервы!")