import Button from "@/components/Low/Button";
import Checkbox from "@/components/Low/Checkbox";
import {PERMISSIONS} from "@/constants/userPermissions";
import {Type, User} from "@/interfaces/user";
import {USER_TYPE_LABELS} from "@/resources/user";
import axios from "axios";
import clsx from "clsx";
import {capitalize} from "lodash";
import moment from "moment";
import {useEffect, useState} from "react";
import ReactDatePicker from "react-datepicker";
import {toast} from "react-toastify";
import ShortUniqueId from "short-unique-id";

const USER_TYPE_PERMISSIONS: {[key in Type]: Type[]} = {
	student: [],
	teacher: [],
	agent: [],
	corporate: ["student", "teacher"],
	admin: ["student", "teacher", "agent", "corporate", "admin"],
	developer: ["student", "teacher", "agent", "corporate", "admin", "developer"],
};

export default function CodeGenerator({user}: {user: User}) {
	const [generatedCode, setGeneratedCode] = useState<string>();
	const [expiryDate, setExpiryDate] = useState<Date | null>(null);
	const [isExpiryDateEnabled, setIsExpiryDateEnabled] = useState(true);
	const [type, setType] = useState<Type>("student");

	useEffect(() => {
		if (user && (user.type === "corporate" || user.type === "teacher")) {
			setExpiryDate(user.subscriptionExpirationDate || null);
		}
	}, [user]);

	useEffect(() => {
		if (!isExpiryDateEnabled) setExpiryDate(null);
	}, [isExpiryDateEnabled]);

	const generateCode = (type: Type) => {
		const uid = new ShortUniqueId();
		const code = uid.randomUUID(6);

		axios
			.post("/api/code", {type, codes: [code], expiryDate})
			.then(({data, status}) => {
				if (data.ok) {
					toast.success(`Successfully generated a ${capitalize(type)} code!`, {toastId: "success"});
					setGeneratedCode(code);
					return;
				}

				if (status === 403) {
					toast.error(data.reason, {toastId: "forbidden"});
				}
			})
			.catch(({response: {status, data}}) => {
				if (status === 403) {
					toast.error(data.reason, {toastId: "forbidden"});
					return;
				}

				toast.error(`Something went wrong, please try again later!`, {toastId: "error"});
			});
	};

	return (
		<div className="flex flex-col gap-4 border p-4 border-mti-gray-platinum rounded-xl">
			<label className="font-normal text-base text-mti-gray-dim">User Code Generator</label>
			{user && (
				<select
					defaultValue="student"
					onChange={(e) => setType(e.target.value as typeof user.type)}
					className="p-6 w-full min-w-[350px] min-h-[70px] flex justify-center text-sm font-normal rounded-full border focus:outline-none cursor-pointer bg-white">
					{Object.keys(USER_TYPE_LABELS)
						.filter((x) => USER_TYPE_PERMISSIONS[user.type].includes(x as Type))
						.map((type) => (
							<option key={type} value={type}>
								{USER_TYPE_LABELS[type as keyof typeof USER_TYPE_LABELS]}
							</option>
						))}
				</select>
			)}
			{user && (user.type === "developer" || user.type === "admin") && (
				<>
					<div className="flex -md:flex-row md:flex-col -md:items-center 2xl:flex-row 2xl:items-center justify-between gap-2">
						<label className="font-normal text-base text-mti-gray-dim">Expiry Date</label>
						<Checkbox isChecked={isExpiryDateEnabled} onChange={setIsExpiryDateEnabled}>
							Enabled
						</Checkbox>
					</div>
					{isExpiryDateEnabled && (
						<ReactDatePicker
							className={clsx(
								"p-6 w-full min-h-[70px] flex justify-center text-sm font-normal rounded-full border focus:outline-none cursor-pointer",
								"hover:border-mti-purple tooltip",
								"transition duration-300 ease-in-out",
							)}
							filterDate={(date) => moment(date).isAfter(new Date())}
							dateFormat="dd/MM/yyyy"
							selected={expiryDate}
							onChange={(date) => setExpiryDate(date)}
						/>
					)}
				</>
			)}
			<Button onClick={() => generateCode(type)} disabled={isExpiryDateEnabled ? !expiryDate : false}>
				Generate
			</Button>
			<label className="font-normal text-base text-mti-gray-dim">Generated Code:</label>
			<div
				className={clsx(
					"p-6 w-full min-h-[70px] flex justify-center text-sm font-normal rounded-full border focus:outline-none cursor-pointer",
					"hover:border-mti-purple tooltip",
					"transition duration-300 ease-in-out",
				)}
				data-tip="Click to copy"
				onClick={() => {
					if (generatedCode) navigator.clipboard.writeText(generatedCode);
				}}>
				{generatedCode}
			</div>
			{generatedCode && <span className="text-sm text-mti-gray-dim font-light">Give this code to the user to complete their registration</span>}
		</div>
	);
}
