feat: Add DiscountConditions (#1230)

* feat: Add DiscountCondition entity + Join table per relation (#1146)

* feat: Convert DiscountService to TypeScript (#1149)

* feat: Add DiscountRepository + bulk insert and remove (#1156)

* feat: Add `conditions` to payload in `POST /discounts` and `POST /discounts/:id` (#1170)

* feat: Add DiscountRuleCondition entity

* fix relation

* fix join key

* Add discount rule condition repo

* add join table per relation

* Convert DiscountService to TypeScript

* feat: Add DiscountConditionRepository

* Add migration + remove use of valid_for

* revert changes to files, not done yet

* init work on create discount endpoint

* Add conditions to create discount endpoint

* Add conditions to update discount endpoint

* Add unique constraint to discount condition

* integration tests passing

* fix imports of models

* fix tests (excluding totals calculations)

* Fix commented code

* add unique constraint on discount condition

* Add generic way of generating retrieve configs

* Requested changes + ExactlyOne validator

* Remove isLocal flag from error handler

* Use postgres error constant

* remove commented code

* feat: Add `isValidForProduct` to check if Discount is valid for a given Product (#1172)

* feat: Add `canApplyForCustomer` to check if Discount is valid for customer groups (#1212)

* feat: Add `calculateDiscountForLineItem` (#1224)

* feat: Adds discount condition test factory (#1228)

* Remove use of valid_for

* Tests passing

* Remove valid_for form relations

* Add integration tests for applying discounts to cart

integration-tests/api/factories/simple-customer-group-factory.ts

@@ -0,0 +1,31 @@
+import { CustomerGroup } from "@medusajs/medusa"
+import faker from "faker"
+import { Connection } from "typeorm"
+
+export type CustomerGroupFactoryData = {
+  id?: string
+  name?: string
+}
+
+export const simpleCustomerGroupFactory = async (
+  connection: Connection,
+  data: CustomerGroupFactoryData = {},
+  seed?: number
+): Promise<CustomerGroup> => {
+  if (typeof seed !== "undefined") {
+    faker.seed(seed)
+  }
+
+  const manager = connection.manager
+
+  const customerGroupId =
+    data.id || `simple-customer-group-${Math.random() * 1000}`
+  const c = manager.create(CustomerGroup, {
+    id: customerGroupId,
+    name: data.name,
+  })
+
+  const group = await manager.save(c)
+
+  return group
+}