From 3818739c5901cc3f1d4596b24cfe1b827a2eca23 Mon Sep 17 00:00:00 2001
From: Arne Rief <riearn@proton.me>
Date: Mon, 22 Dec 2025 12:28:33 +0100
Subject: FE Sidebar, create & move requests, BE create controller

---
 backend/src/controllers/createRobot.ts | 61 ++++++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 backend/src/controllers/createRobot.ts

(limited to 'backend/src/controllers')

diff --git a/backend/src/controllers/createRobot.ts b/backend/src/controllers/createRobot.ts
new file mode 100644
index 0000000..fa483af
--- /dev/null
+++ b/backend/src/controllers/createRobot.ts
@@ -0,0 +1,61 @@
+import { Request, Response } from "express";
+import { QueryResult } from "pg";
+import db from "../database/postgres.js";
+import redisClient from "../database/redis.js";
+import { CreateRequest } from "../types/request.js";
+import { Robot } from "../types/robot.js";
+
+const ROBOTS_CACHE_KEY = "allMyRobots";
+
+async function createRobot(req: Request, res: Response) {
+    const io = req.app.get("io");
+
+    const { name } = req.body as CreateRequest;
+
+    if (!name || !name.trim()) {
+        return res.status(400).json({
+            message: "Robot name is required.",
+        });
+    }
+
+    try {
+        const createNewRobotQuery: QueryResult<Robot> = await db.query(
+            `
+        INSERT INTO robots
+            (name, status, lat, lon, robot_positions) 
+            VALUES ($1, $2, $3, $4, $5) 
+        RETURNING
+            id, name, status, lat, lon, robot_positions, created_at, updated_at;`,
+            [name.trim(), "idle", 51.340863, 12.375919, JSON.stringify([])]
+        );
+
+        const newRobot = createNewRobotQuery.rows[0];
+
+        // Delete old Redis cache, get all robots again and broadcast update to the frontend
+        await redisClient.del(ROBOTS_CACHE_KEY);
+        console.log("Redis cache deleted after robot creation.");
+
+        const allRobotsQuery: QueryResult<Robot> = await db.query(
+            "SELECT * FROM robots ORDER BY id;"
+        );
+
+        const allRobots = allRobotsQuery.rows;
+
+        io.emit("robots_update", allRobots);
+        console.log("WebSocket update with newly created robot.");
+
+        return res.status(201).json({
+            message: "Robot successfully created.",
+            robot: newRobot,
+        });
+    } catch (error) {
+        console.error("Error creating the robot: ", error);
+        return res.status(500).json({
+            message: "Internal server error during robot creation.",
+            error,
+        });
+    }
+}
+
+export default createRobot;
+
-- 
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