feat(sync): harden the Hiboutik sync, share rate limits across instances, update dependencies (#4)

src/database/productVersion.database.repository.ts

@@ -1,6 +1,6 @@
 import { Injectable } from '@nestjs/common';
 import { PrismaService } from '../../prisma/prisma.service';
-import { ProductVersion } from '../../prisma/generated/client';
+import { Prisma, ProductVersion } from '../../prisma/generated/client';
 import { ProductVersionCreateInput } from '../../prisma/generated/models/ProductVersion';
 
 /** Database access to product versions (one per Hiboutik size), identified by their product and `hiboutikSizeId`. */
@@ -14,9 +14,16 @@ export class ProductVersionDatabaseRepository {
     });
   }
 
-  /** Creates or updates the version of `productId` with the same `hiboutikSizeId`. */
-  async upsert(productId: string, productVersion: ProductVersionCreateInput): Promise<ProductVersion> {
-    return this.prisma.productVersion.upsert({
+  /**
+   * Creates or updates the version of `productId` with the same `hiboutikSizeId`.
+   * @param db transaction client, to run it inside a transaction.
+   */
+  async upsert(
+    productId: string,
+    productVersion: ProductVersionCreateInput,
+    db: Prisma.TransactionClient = this.prisma,
+  ): Promise<ProductVersion> {
+    return db.productVersion.upsert({
       where: { productId_hiboutikSizeId: { productId: productId, hiboutikSizeId: productVersion.hiboutikSizeId } },
       create: productVersion,
       update: productVersion,
@@ -26,9 +33,10 @@ export class ProductVersionDatabaseRepository {
   /**
    * Deletes the versions of a product that no longer exist in Hiboutik.
    * Order lines keep their own snapshot of the product, their link is set to null.
+   * @param db transaction client, to run it inside a transaction.
    */
-  async deleteMissing(productId: string, keptHiboutikSizeIds: number[]): Promise<number> {
-    const result = await this.prisma.productVersion.deleteMany({
+  async deleteMissing(productId: string, keptHiboutikSizeIds: number[], db: Prisma.TransactionClient = this.prisma): Promise<number> {
+    const result = await db.productVersion.deleteMany({
       where: { productId, hiboutikSizeId: { notIn: keptHiboutikSizeIds } },
     });
     return result.count;