feat: change dojo spawn room (#949)

Closes #524

Reviewed-on: OpenWF/SpaceNinjaServer#949
Co-authored-by: Sainan <sainan@calamity.inc>
Co-committed-by: Sainan <sainan@calamity.inc>

src/controllers/api/changeDojoRootController.ts

@@ -0,0 +1,90 @@
+import { RequestHandler } from "express";
+import { getDojoClient, getGuildForRequest } from "@/src/services/guildService";
+import { logger } from "@/src/utils/logger";
+import { IDojoComponentDatabase } from "@/src/types/guildTypes";
+import { Types } from "mongoose";
+
+export const changeDojoRootController: RequestHandler = async (req, res) => {
+    const guild = await getGuildForRequest(req);
+    // At this point, we know that a member of the guild is making this request. Assuming they are allowed to change the root.
+
+    const idToNode: Record<string, INode> = {};
+    guild.DojoComponents!.forEach(x => {
+        idToNode[x._id.toString()] = {
+            component: x,
+            parent: undefined,
+            children: []
+        };
+    });
+
+    let oldRoot: INode | undefined;
+    guild.DojoComponents!.forEach(x => {
+        const node = idToNode[x._id.toString()];
+        if (x.pi) {
+            idToNode[x.pi.toString()].children.push(node);
+            node.parent = idToNode[x.pi.toString()];
+        } else {
+            oldRoot = node;
+        }
+    });
+    logger.debug("Old tree:\n" + treeToString(oldRoot!));
+
+    const newRoot = idToNode[req.query.newRoot as string];
+    recursivelyTurnParentsIntoChildren(newRoot);
+    newRoot.component.pi = undefined;
+    newRoot.component.op = undefined;
+    newRoot.component.pp = undefined;
+    newRoot.parent = undefined;
+
+    // Don't even ask me why this is needed because I don't know either
+    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.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));
+
+    await guild.save();
+
+    res.json(getDojoClient(guild, 0));
+};
+
+interface INode {
+    component: IDojoComponentDatabase;
+    parent: INode | undefined;
+    children: INode[];
+}
+
+const treeToString = (root: INode, depth: number = 0): string => {
+    let str = " ".repeat(depth * 4) + root.component.pf + " (" + root.component._id.toString() + ")\n";
+    root.children.forEach(x => {
+        str += treeToString(x, depth + 1);
+    });
+    return str;
+};
+
+const recursivelyTurnParentsIntoChildren = (node: INode): void => {
+    if (node.parent!.parent) {
+        recursivelyTurnParentsIntoChildren(node.parent!);
+    }
+
+    node.parent!.component.pi = node.component._id;
+    node.parent!.component.op = node.component.pp;
+    node.parent!.component.pp = node.component.op;
+
+    node.parent!.parent = node;
+    node.parent!.children.splice(node.parent!.children.indexOf(node), 1);
+    node.children.push(node.parent!);
+};

src/routes/api.ts

@@ -4,6 +4,7 @@ import { addFriendImageController } from "@/src/controllers/api/addFriendImageCo
 import { arcaneCommonController } from "@/src/controllers/api/arcaneCommonController";
 import { archonFusionController } from "@/src/controllers/api/archonFusionController";
 import { artifactsController } from "../controllers/api/artifactsController";
+import { changeDojoRootController } from "../controllers/api/changeDojoRootController";
 import { checkDailyMissionBonusController } from "@/src/controllers/api/checkDailyMissionBonusController";
 import { claimCompletedRecipeController } from "@/src/controllers/api/claimCompletedRecipeController";
 import { clearDialogueHistoryController } from "@/src/controllers/api/clearDialogueHistoryController";
@@ -127,6 +128,7 @@ apiRouter.post("/addFriendImage.php", addFriendImageController);
 apiRouter.post("/arcaneCommon.php", arcaneCommonController);
 apiRouter.post("/archonFusion.php", archonFusionController);
 apiRouter.post("/artifacts.php", artifactsController);
+apiRouter.post("/changeDojoRoot.php", changeDojoRootController);
 apiRouter.post("/claimCompletedRecipe.php", claimCompletedRecipeController);
 apiRouter.post("/clearDialogueHistory.php", clearDialogueHistoryController);
 apiRouter.post("/createGuild.php", createGuildController);

src/types/guildTypes.ts

@@ -32,8 +32,8 @@ export interface IDojoComponentClient {
     pf: string; // Prefab (.level)
     ppf: string;
     pi?: IOid; // Parent ID. N/A to root.
-    op?: string; // "Open Portal"? N/A to root.
-    pp?: string; // "Parent Portal"? N/A to root.
+    op?: string; // Name of the door within this room that leads to its parent. N/A to root.
+    pp?: string; // Name of the door within the parent that leads to this room. N/A to root.
     Name?: string;
     Message?: string;
     RegularCredits?: number; // "Collecting Materials" state: Number of credits that were donated.