simplify

Using SortId instead of actually changing the component ids.
What's strange is that providing/omitting SortId does seem to make a difference in regards to deco positioning, which is presumably what the POST body would be for. I've opted to simply always provide the SortId in hopes that this avoids the need for repositioning entirely.

src/controllers/api/changeDojoRootController.ts

@@ -15,6 +15,12 @@ export const changeDojoRootController: RequestHandler = async (req, res) => {
         return;
     }
 
+    // Example POST body: {"pivot":[0, 0, -64],"components":"{\"670429301ca0a63848ccc467\":{\"R\":[0,0,0],\"P\":[0,3,32]},\"6704254a1ca0a63848ccb33c\":{\"R\":[0,0,0],\"P\":[0,9.25,-32]},\"670429461ca0a63848ccc731\":{\"R\":[-90,0,0],\"P\":[-47.999992370605,3,16]}}"}
+    if (req.body) {
+        logger.debug(`data provided to ${req.path}: ${String(req.body)}`);
+        throw new Error("dojo reparent operation should not need deco repositioning"); // because we always provide SortId
+    }
+
     const idToNode: Record<string, INode> = {};
     guild.DojoComponents.forEach(x => {
         idToNode[x._id.toString()] = {
@@ -43,23 +49,13 @@ export const changeDojoRootController: RequestHandler = async (req, res) => {
     newRoot.component.pp = undefined;
     newRoot.parent = undefined;
 
-    // Don't even ask me why this is needed because I don't know either
+    // Set/update SortId in top-to-bottom order
     const stack: INode[] = [newRoot];
-    let i = 0;
-    const idMap: Record<string, Types.ObjectId> = {};
     while (stack.length != 0) {
         const top = stack.shift()!;
-        idMap[top.component._id.toString()] = new Types.ObjectId(
-            (++i).toString(16).padStart(8, "0") + top.component._id.toString().substr(8)
-        );
+        top.component.SortId = new Types.ObjectId();
         top.children.forEach(x => stack.push(x));
     }
-    guild.DojoComponents.forEach(x => {
-        x._id = idMap[x._id.toString()];
-        if (x.pi) {
-            x.pi = idMap[x.pi.toString()];
-        }
-    });
 
     logger.debug("New tree:\n" + treeToString(newRoot));
 

src/models/guildModel.ts

@@ -43,6 +43,7 @@ const dojoLeaderboardEntrySchema = new Schema<IDojoLeaderboardEntry>(
 );
 
 const dojoComponentSchema = new Schema<IDojoComponentDatabase>({
+    SortId: Schema.Types.ObjectId,
     pf: { type: String, required: true },
     ppf: String,
     pi: Schema.Types.ObjectId,

src/routes/api.ts

@@ -145,6 +145,7 @@ const apiRouter = express.Router();
 apiRouter.get("/abandonLibraryDailyTask.php", abandonLibraryDailyTaskController);
 apiRouter.get("/abortDojoComponentDestruction.php", abortDojoComponentDestructionController);
 apiRouter.get("/cancelGuildAdvertisement.php", cancelGuildAdvertisementController);
+apiRouter.get("/changeDojoRoot.php", changeDojoRootController);
 apiRouter.get("/changeGuildRank.php", changeGuildRankController);
 apiRouter.get("/checkDailyMissionBonus.php", checkDailyMissionBonusController);
 apiRouter.get("/claimLibraryDailyTaskReward.php", claimLibraryDailyTaskRewardController);

src/services/guildService.ts

@@ -147,6 +147,7 @@ export const getDojoClient = async (
         if (!componentId || dojoComponent._id.equals(componentId)) {
             const clientComponent: IDojoComponentClient = {
                 id: toOid(dojoComponent._id),
+                SortId: toOid(dojoComponent.SortId ?? dojoComponent._id), // always providing a SortId so decos don't need repositioning to reparent
                 pf: dojoComponent.pf,
                 ppf: dojoComponent.ppf,
                 Name: dojoComponent.Name,

src/types/guildTypes.ts

@@ -190,6 +190,7 @@ export interface IDojoComponentDatabase
         "id" | "SortId" | "pi" | "CompletionTime" | "DestructionTime" | "Decos" | "PaintBot"
     > {
     _id: Types.ObjectId;
+    SortId?: Types.ObjectId;
     pi?: Types.ObjectId;
     CompletionTime?: Date;
     CompletionLogPending?: boolean;