import { getPublicUser, prisma, User } from "@repo/db";
import { Server, Socket } from "socket.io";

export const handleConnectDispatch =
	(socket: Socket, io: Server) =>
	async ({ logoffTime, selectedZone }: { logoffTime: string; selectedZone: string }) => {
		try {
			const user: User = socket.data.user; // User ID aus dem JWT-Token

			if (!user) return Error("User not found");
			console.log("Disponent connected:", user.publicId);

			if (!user.permissions?.includes("DISPO")) {
				socket.emit("error", "You do not have permission to connect to the dispatch server.");
				return;
			}

			const existingConnection = await prisma.connectedDispatcher.findFirst({
				where: {
					userId: user.id,
					logoutTime: null,
				},
			});

			if (existingConnection) {
				await io.to(`user:${user.id}`).emit("force-disconnect", "double-connection");
				await prisma.connectedDispatcher.updateMany({
					where: {
						userId: user.id,
						logoutTime: null,
					},
					data: {
						logoutTime: new Date().toISOString(),
					},
				});
			}

			let parsedLogoffDate = null;
			if (logoffTime.length > 0) {
				const now = new Date();
				const [hours, minutes] = logoffTime.split(":").map(Number);
				if (!hours || !minutes) {
					throw new Error("Invalid logoffTime format");
				}
				parsedLogoffDate = new Date(now);
				parsedLogoffDate.setHours(hours, minutes, 0, 0);

				// If the calculated time is earlier than now, add one day to make it tomorrow
				if (parsedLogoffDate <= now) {
					parsedLogoffDate.setDate(parsedLogoffDate.getDate() + 1);
				}

				// If the calculated time is in the past, add one day to make it in the future
				if (parsedLogoffDate <= now) {
					parsedLogoffDate.setDate(parsedLogoffDate.getDate() + 1);
				}
			}

			const connectedDispatcherEntry = await prisma.connectedDispatcher.create({
				data: {
					publicUser: getPublicUser(user) as any,
					esimatedLogoutTime: parsedLogoffDate?.toISOString() || null,
					lastHeartbeat: new Date().toISOString(),
					userId: user.id,
					zone: selectedZone,
					loginTime: new Date().toISOString(),
				},
			});

			socket.join("dispatchers"); // Dem Dispatcher-Raum beitreten
			socket.join(`user:${user.id}`); // Dem User-Raum beitreten

			io.to(`user:${user.id}`).emit("dispatchers-update", connectedDispatcherEntry);
			io.to("dispatchers").emit("dispatchers-update", connectedDispatcherEntry);
			io.to("pilots").emit("dispatchers-update", connectedDispatcherEntry);

			socket.on("disconnect", async () => {
				await prisma.connectedDispatcher.update({
					where: {
						id: connectedDispatcherEntry.id,
					},
					data: {
						logoutTime: new Date().toISOString(),
					},
				});
				io.to("dispatchers").emit("dispatchers-update");
				io.to("pilots").emit("dispatchers-update");
			});
		} catch (error) {
			console.error("Error connecting to dispatch server:", error);
		}
	};