import { prisma } from "@repo/db";
import { Router } from "express";
import { io } from "../index";
import { sendNtfyMission } from "modules/ntfy";

const router = Router();

// Get all missions
router.post("/", async (req, res) => {
	try {
		const filter = req.body?.filter || {};
		const missions = await prisma.mission.findMany({
			where: filter,
		});
		res.json(missions);
	} catch (error) {
		console.error(error);
		res.status(500).json({ error: "Failed to fetch missions" });
	}
});

// Get a single mission by ID
router.get("/:id", async (req, res) => {
	const { id } = req.params;
	try {
		const mission = await prisma.mission.findUnique({
			where: { id: Number(id) },
		});
		if (mission) {
			res.json(mission);
		} else {
			res.status(404).json({ error: "Mission not found" });
		}
	} catch (error) {
		console.error(error);
		res.status(500).json({ error: "Failed to fetch mission" });
	}
});

// Create a new mission
router.put("/", async (req, res) => {
	try {
		const startOfToday = new Date();
		startOfToday.setHours(0, 0, 0, 0);

		const missionsTodayCount = await prisma.mission.count({
			where: {
				createdAt: {
					gte: startOfToday,
				},
			},
		});

		const date = new Date();
		const year = date.getFullYear();
		const month = String(date.getMonth() + 1).padStart(2, "0"); // Months are zero-based
		const day = String(date.getDate()).padStart(2, "0");

		const publicId = `__${year}${month}${day}${missionsTodayCount ? missionsTodayCount + 1 : 1}`;
		const newMission = await prisma.mission.create({
			data: {
				...req.body,
				publicId,
			},
		});
		io.to("dispatchers").emit("new-mission", { newMission });
		res.status(201).json(newMission);
	} catch (error) {
		res.status(500).json({ error: "Failed to create mission" });
	}
});

// Update a mission by ID
router.patch("/:id", async (req, res) => {
	const { id } = req.params;
	try {
		const updatedMission = await prisma.mission.update({
			where: { id: Number(id) },
			data: req.body,
		});
		io.to("dispatchers").emit("update-mission", updatedMission);
		res.json(updatedMission);
	} catch (error) {
		console.error(error);
		res.status(500).json({ error: "Failed to update mission" });
	}
});

// Delete a mission by ID
router.delete("/:id", async (req, res) => {
	const { id } = req.params;
	try {
		await prisma.mission.delete({
			where: { id: Number(id) },
		});
		io.to("dispatchers").emit("delete-mission", id);
		res.status(204).send();
	} catch (error) {
		console.error(error);
		res.status(500).json({ error: "Failed to delete mission" });
	}
});

// Send mission

router.post("/:id/send-alert", async (req, res) => {
	const { id } = req.params;
	const { stationId } = req.body as { stationId?: number };
	try {
		const mission = await prisma.mission.findUnique({
			where: { id: Number(id) },
		});
		const Stations = await prisma.station.findMany({
			where: {
				id: {
					in: mission?.missionStationIds,
				},
			},
		});

		if (!mission) {
			res.status(404).json({ error: "Mission not found" });
			return;
		}

		// connectedAircrafts the alert is sent to
		const connectedAircrafts = await prisma.connectedAircraft.findMany({
			where: {
				stationId: stationId
					? stationId
					: {
							in: mission.missionStationIds,
						},
				logoutTime: null,
			},
			include: {
				Station: true,
			},
		});

		for (const aircraft of connectedAircrafts) {
			console.log(`Sending mission to: station:${aircraft.stationId}`);
			io.to(`station:${aircraft.stationId}`).emit("mission-alert", {
				...mission,
				Stations,
			});
			const user = await prisma.user.findUnique({
				where: { id: aircraft.userId },
			});
			if (!user) continue;
			if (user.settingsNtfyRoom) {
				await sendNtfyMission(
					mission,
					Stations,
					aircraft.Station,
					user.settingsNtfyRoom,
				);
			}
			const existingMissionOnStationUser =
				await prisma.missionOnStationUsers.findFirst({
					where: {
						missionId: mission.id,
						userId: aircraft.userId,
						stationId: aircraft.stationId,
					},
				});
			if (!existingMissionOnStationUser)
				await prisma.missionOnStationUsers.create({
					data: {
						missionId: mission.id,
						userId: aircraft.userId,
						stationId: aircraft.stationId,
					},
				});
		}

		// for statistics only
		await prisma.missionsOnStations
			.createMany({
				data: mission.missionStationIds.map((stationId) => ({
					missionId: mission.id,
					stationId,
				})),
			})
			.catch(() => {
				// Ignore if the entry already exists
			});

		await prisma.mission.update({
			where: { id: Number(id) },
			data: {
				state: "running",
			},
		});

		res.status(200).json({
			message: `Einsatz gesendet (${connectedAircrafts.length} Nutzer) `,
		});
		io.to("dispatchers").emit("update-mission", mission);
	} catch (error) {
		console.error(error);
		res.status(500).json({ error: "Failed to send mission" });
	}
});

export default router;