From 86aa531fad7baebe0b78ccf0aa19f0fdcff6314c Mon Sep 17 00:00:00 2001
From: Tom Moor <tom.moor@gmail.com>
Date: Sun, 30 Oct 2022 09:21:30 -0400
Subject: [PATCH] Utility method to re-derive text field from CRDT

---
 server/scripts/20221029000000-crdt-to-text.ts | 71 +++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 server/scripts/20221029000000-crdt-to-text.ts

diff --git a/server/scripts/20221029000000-crdt-to-text.ts b/server/scripts/20221029000000-crdt-to-text.ts
new file mode 100644
index 000000000..9c3ecc5c3
--- /dev/null
+++ b/server/scripts/20221029000000-crdt-to-text.ts
@@ -0,0 +1,71 @@
+import "./bootstrap";
+import { yDocToProsemirrorJSON } from "@getoutline/y-prosemirror";
+import { Node } from "prosemirror-model";
+import { Op } from "sequelize";
+import * as Y from "yjs";
+import { schema, serializer } from "@server/editor";
+import { Document } from "@server/models";
+
+const limit = 100;
+const page = 0;
+const teamId = process.argv[2];
+
+export default async function main(exit = false) {
+  const work = async (page: number): Promise<void> => {
+    console.log(`Backfill text from crdt… page ${page}`);
+
+    if (!teamId && process.env.DEPLOYMENT === "hosted") {
+      throw new Error("Team ID is required");
+    }
+
+    // Retrieve all documents within set limit.
+    const documents = await Document.unscoped().findAll({
+      attributes: ["id", "urlId", "text", "state"],
+      limit,
+      offset: page * limit,
+      where: {
+        ...(teamId ? { teamId } : {}),
+        state: {
+          [Op.ne]: null,
+        },
+      },
+      order: [["createdAt", "ASC"]],
+      paranoid: false,
+    });
+
+    console.log(documents.length);
+
+    for (const document of documents) {
+      const ydoc = new Y.Doc();
+      Y.applyUpdate(ydoc, document.state);
+      const node = Node.fromJSON(
+        schema,
+        yDocToProsemirrorJSON(ydoc, "default")
+      );
+      const text = serializer.serialize(node, undefined);
+
+      if (text !== document.text) {
+        console.log(`Writing text from CRDT for ${document.id}`);
+        document.text = text;
+      }
+
+      await document.save({
+        hooks: false,
+        silent: true,
+      });
+    }
+
+    return documents.length === limit ? work(page + 1) : undefined;
+  };
+
+  await work(page);
+
+  if (exit) {
+    console.log("Backfill complete");
+    process.exit(0);
+  }
+}
+
+if (process.env.NODE_ENV !== "test") {
+  main(true);
+}