feat: Add support for deleting TPW items

src/Collection/Collection.service.ts

@@ -295,7 +295,7 @@ export class CollectionService {
     }))
   }
 
-  private async getDBCollection(
+  public async getDBCollection(
     collectionId: string
   ): Promise<CollectionAttributes> {
     const collection = await Collection.findOne(collectionId)

src/Item/Item.exceptions.ts

@@ -0,0 +1,45 @@
+export enum ItemAction {
+  DELETE = 'deleted',
+}
+
+export enum ItemType {
+  DCL,
+  THIRD_PARTY,
+}
+
+export class NonExistentItemException extends Error {
+  constructor(public id: string) {
+    super("The item doesn't exist.")
+  }
+}
+
+export class ThirdPartyItemAlreadyPublishedException extends Error {
+  constructor(public id: string, public urn: string, action: ItemAction) {
+    super(`The third party item is already published. It can't be ${action}.`)
+  }
+}
+
+export class DCLItemAlreadyPublishedException extends Error {
+  constructor(
+    public id: string,
+    public blockchainItemId: string,
+    public contractAddress: string,
+    action: ItemAction
+  ) {
+    super(
+      `The collection that contains this item has been already published. The item can't be ${action}.`
+    )
+  }
+}
+
+export class CollectionForItemLockedException extends Error {
+  constructor(public id: string, action: ItemAction) {
+    super(`The collection for the item is locked. The item can't be ${action}.`)
+  }
+}
+
+export class InconsistentItemException extends Error {
+  constructor(public id: string, message: string) {
+    super(message)
+  }
+}