added cleanup mutation (#157)

* added cleanup mutation

* default to empty array

src/datasources/product-api.ts

@@ -3,6 +3,7 @@ import { BaseSQLDataSource } from './BaseSQLDataSource';
 import { camelcase } from 'stringcase';
 import slug from 'slug';
 import * as sql from './sql';
+import * as CONFIG from '../config';
 import {
   Product,
   ProductGroup,
@@ -35,6 +36,8 @@ import { PrintProductDefaultsAPI } from './printproduct-defaults-api';
 import { GraphQLError } from 'graphql';
 import { MINUTE } from './utils';
 import { ScopeAccess, Scopes } from '../cognito/access-control';
+import { Interior } from '../types/interior-types';
+import { deleteFiles, listS3Files } from '../aws/s3';
 
 export class ProductAPI extends BaseSQLDataSource {
   textsApi: TextsAPI;
@@ -1005,6 +1008,52 @@ export class ProductAPI extends BaseSQLDataSource {
     return Promise.all(insertPromises);
   }
 
+  /**
+   * @function cleanupInteriors
+   * @description Removes all not used interiors from a product
+   */
+  async cleanupInteriors(
+    productId: number,
+    currentInteriors: Interior[],
+  ): Promise<{ active: string[]; deleted: string[] }> {
+    ScopeAccess.validate(this.user).all([
+      Scopes.PRODUCTS_WRITE,
+      Scopes.INTERIORS_WRITE,
+    ]);
+
+    // Get all interior files for product on s3
+    const files = await listS3Files(
+      CONFIG.imageBucket,
+      `interiors/${productId}`,
+    );
+
+    const shouldKeep = [];
+    const shouldRemove = [];
+
+    // Convert to match key format from s3
+    const currentUris = currentInteriors.map((item) => item.uri.substring(1));
+
+    // Go through all files on s3 and organize as delete or keep
+    for (const file of files) {
+      if (currentUris.includes(file.Key)) {
+        shouldKeep.push(file.Key);
+      } else {
+        shouldRemove.push(file.Key);
+      }
+    }
+
+    // Setup all delete actions
+    const deletePromises = shouldRemove.map((file) => {
+      return deleteFiles(CONFIG.imageBucket, file);
+    });
+
+    // Run all delete in parallell
+    await Promise.all(deletePromises);
+
+    // Return what we did
+    return { active: shouldKeep, deleted: shouldRemove };
+  }
+
   /**
    * @function setProportionsWarning
    * @description Sets propotion warning-values to a product