refactored/cleaned up API + added support for renaming tags

lib/api/controllers/collections/collectionId/deleteCollectionById.ts

@@ -0,0 +1,70 @@
+import { prisma } from "@/lib/api/db";
+import getPermission from "@/lib/api/getPermission";
+import { Collection, UsersAndCollections } from "@prisma/client";
+import removeFolder from "@/lib/api/storage/removeFolder";
+
+export default async function deleteCollection(
+  userId: number,
+  collectionId: number
+) {
+  if (!collectionId)
+    return { response: "Please choose a valid collection.", status: 401 };
+
+  const collectionIsAccessible = (await getPermission({
+    userId,
+    collectionId,
+  })) as
+    | (Collection & {
+        members: UsersAndCollections[];
+      })
+    | null;
+
+  const memberHasAccess = collectionIsAccessible?.members.some(
+    (e: UsersAndCollections) => e.userId === userId
+  );
+
+  if (collectionIsAccessible?.ownerId !== userId && memberHasAccess) {
+    // Remove relation/Leave collection
+    const deletedUsersAndCollectionsRelation =
+      await prisma.usersAndCollections.delete({
+        where: {
+          userId_collectionId: {
+            userId: userId,
+            collectionId: collectionId,
+          },
+        },
+      });
+
+    return { response: deletedUsersAndCollectionsRelation, status: 200 };
+  } else if (collectionIsAccessible?.ownerId !== userId) {
+    return { response: "Collection is not accessible.", status: 401 };
+  }
+
+  const deletedCollection = await prisma.$transaction(async () => {
+    await prisma.usersAndCollections.deleteMany({
+      where: {
+        collection: {
+          id: collectionId,
+        },
+      },
+    });
+
+    await prisma.link.deleteMany({
+      where: {
+        collection: {
+          id: collectionId,
+        },
+      },
+    });
+
+    removeFolder({ filePath: `archives/${collectionId}` });
+
+    return await prisma.collection.delete({
+      where: {
+        id: collectionId,
+      },
+    });
+  });
+
+  return { response: deletedCollection, status: 200 };
+}