import { NextRequest, NextResponse } from "next/server";
import { apiAuthMiddleware } from "@utils/apiAuthMiddleware";
import { prisma } from "@utils/prisma";
import { writeFile } from "fs/promises";
import { join } from "path";

export async function POST(request: NextRequest) {
	try {
		const formData = await request.formData();
		const name = formData.get("name") as string;
		const type = formData.get("type") as string;
		const description = formData.get("description") as string;
		const earthquakeCode = formData.get("earthquakeCode") as string;
		const warehouseLocation = formData.get("warehouseLocation") as string;
		const image = formData.get("image") as File | null;

		const authResult = await apiAuthMiddleware();
		if ("user" in authResult === false) return authResult;

		const { user } = authResult;

		if (!name || !type || !description || !earthquakeCode || !warehouseLocation) {
			return NextResponse.json({ error: "Missing fields" }, { status: 400 });
		}

		if (user.role !== "ADMIN" && user.role !== "SCIENTIST") {
			return NextResponse.json({ error: "Not authorized" }, { status: 401 });
		}

		if (user.role === "SCIENTIST") {
			const scientist = await prisma.scientist.findUnique({
				where: {
					userId: user.id,
				},
				include: {
					subordinates: true,
				},
			});

			if (!scientist || scientist.level !== "SENIOR") {
				return NextResponse.json({ message: "Not authorised" }, { status: 401 });
			}
		}

		const linkedEarthquake = await prisma.earthquake.findUnique({ where: { code: earthquakeCode } });

		if (!linkedEarthquake) {
			return NextResponse.json({ error: "Earthquake code not found" }, { status: 400 });
		}

		let imageName = "NoImageFound.PNG";
		if (image) {
			const buffer = Buffer.from(await image.arrayBuffer());
			const extension = image.type === "image/jpeg" ? "jpg" : "png";
			imageName = `${name}-${new Date().toLocaleDateString("en-GB")}.${extension}`;
			const imagePath = join(process.cwd(), "public", imageName);
			await writeFile(imagePath, buffer);
		}

		await prisma.artefact.create({
			data: {
				name,
				type,
				description,
				earthquakeId: linkedEarthquake.id,
				warehouseArea: warehouseLocation,
				imageName,
				creatorId: user.id,
			},
		});

		return NextResponse.json({ message: "Artefact logged successfully" }, { status: 200 });
	} catch (e: any) {
		return NextResponse.json({ error: e.message }, { status: 500 });
	}
}