import Button from "@/components/Low/Button";
import ProgressBar from "@/components/Low/ProgressBar";
import PayPalPayment from "@/components/PayPalPayment";
import ProfileSummary from "@/components/ProfileSummary";
import useAssignments from "@/hooks/useAssignments";
import useStats from "@/hooks/useStats";
import {Assignment} from "@/interfaces/results";
import {User} from "@/interfaces/user";
import useExamStore from "@/stores/examStore";
import {getExamById} from "@/utils/exams";
import {MODULE_ARRAY, sortByModule, sortByModuleName} from "@/utils/moduleUtils";
import {averageScore, groupBySession} from "@/utils/stats";
import {CreateOrderActions, CreateOrderData, OnApproveActions, OnApproveData, OrderResponseBody} from "@paypal/paypal-js";
import {PayPalButtons} from "@paypal/react-paypal-js";
import axios from "axios";
import clsx from "clsx";
import {capitalize} from "lodash";
import moment from "moment";
import Link from "next/link";
import {useRouter} from "next/router";
import {BsArrowRepeat, BsBook, BsClipboard, BsFileEarmarkText, BsHeadphones, BsMegaphone, BsPen, BsPencil, BsStar} from "react-icons/bs";
import {toast} from "react-toastify";

interface Props {
	user: User;
}

export default function StudentDashboard({user}: Props) {
	const {stats} = useStats(user.id);
	const {assignments, isLoading: isAssignmentsLoading, reload: reloadAssignments} = useAssignments({assignees: user?.id});

	const router = useRouter();

	const setExams = useExamStore((state) => state.setExams);
	const setShowSolutions = useExamStore((state) => state.setShowSolutions);
	const setUserSolutions = useExamStore((state) => state.setUserSolutions);
	const setSelectedModules = useExamStore((state) => state.setSelectedModules);
	const setAssignment = useExamStore((state) => state.setAssignment);

	const startAssignment = (assignment: Assignment) => {
		const examPromises = assignment.exams.filter((e) => e.assignee === user.id).map((e) => getExamById(e.module, e.id));

		Promise.all(examPromises).then((exams) => {
			if (exams.every((x) => !!x)) {
				setUserSolutions([]);
				setShowSolutions(false);
				setExams(exams.map((x) => x!).sort(sortByModule));
				setSelectedModules(
					exams
						.map((x) => x!)
						.sort(sortByModule)
						.map((x) => x!.module),
				);
				setAssignment(assignment);

				router.push("/exercises");
			}
		});
	};

	return (
		<>
			<ProfileSummary
				user={user}
				items={[
					{
						icon: <BsFileEarmarkText className="w-6 h-6 md:w-8 md:h-8 text-mti-red-light" />,
						value: Object.keys(groupBySession(stats)).length,
						label: "Exams",
					},
					{
						icon: <BsPencil className="w-6 h-6 md:w-8 md:h-8 text-mti-red-light" />,
						value: stats.length,
						label: "Exercises",
					},
					{
						icon: <BsStar className="w-6 h-6 md:w-8 md:h-8 text-mti-red-light" />,
						value: `${stats.length > 0 ? averageScore(stats) : 0}%`,
						label: "Average Score",
					},
				]}
			/>

			<section className="flex flex-col gap-1 md:gap-3">
				<span className="font-bold text-lg">Bio</span>
				<span className="text-mti-gray-taupe">
					{user.bio || "Your bio will appear here, you can change it by clicking on your name in the top right corner."}
				</span>
			</section>

			<section className="flex flex-col gap-1 md:gap-3">
				<div className="flex gap-4 items-center">
					<div
						onClick={reloadAssignments}
						className="flex gap-2 items-center text-mti-purple-light cursor-pointer hover:text-mti-purple-dark transition ease-in-out duration-300">
						<span className="font-bold text-lg text-mti-black">Assignments</span>
						<BsArrowRepeat className={clsx("text-xl", isAssignmentsLoading && "animate-spin")} />
					</div>
				</div>
				<span className="text-mti-gray-taupe flex gap-8 overflow-x-scroll scrollbar-hide">
					{assignments.filter((a) => moment(a.endDate).isSameOrAfter(moment())).length === 0 &&
						"Assignments will appear here. It seems that for now there are no assignments for you."}
					{assignments
						.filter((a) => moment(a.endDate).isSameOrAfter(moment()))
						.sort((a, b) => moment(a.startDate).diff(b.startDate))
						.map((assignment) => (
							<div
								className={clsx(
									"border border-mti-gray-anti-flash rounded-xl flex flex-col gap-6 p-4 min-w-[300px]",
									assignment.results.map((r) => r.user).includes(user.id) && "border-mti-green-light",
								)}
								key={assignment.id}>
								<div className="flex flex-col gap-1">
									<h3 className="font-semibold text-xl text-mti-black/90">{assignment.name}</h3>
									<span className="flex gap-1 justify-between">
										<span>{moment(assignment.startDate).format("DD/MM/YY, HH:mm")}</span>
										<span>-</span>
										<span>{moment(assignment.endDate).format("DD/MM/YY, HH:mm")}</span>
									</span>
								</div>
								<div className="flex justify-between w-full items-center">
									<div className="grid grid-cols-2 gap-2 place-items-center justify-center w-fit min-w-[104px] -md:mt-2">
										{assignment.exams
											.filter((e) => e.assignee === user.id)
											.map((e) => e.module)
											.sort(sortByModuleName)
											.map((module) => (
												<div
													key={module}
													data-tip={capitalize(module)}
													className={clsx(
														"flex gap-2 items-center w-fit text-white -md:px-4 xl:px-4 md:px-2 py-2 rounded-xl tooltip",
														module === "reading" && "bg-ielts-reading",
														module === "listening" && "bg-ielts-listening",
														module === "writing" && "bg-ielts-writing",
														module === "speaking" && "bg-ielts-speaking",
														module === "level" && "bg-ielts-level",
													)}>
													{module === "reading" && <BsBook className="w-4 h-4" />}
													{module === "listening" && <BsHeadphones className="w-4 h-4" />}
													{module === "writing" && <BsPen className="w-4 h-4" />}
													{module === "speaking" && <BsMegaphone className="w-4 h-4" />}
													{module === "level" && <BsClipboard className="w-4 h-4" />}
												</div>
											))}
									</div>
									{!assignment.results.map((r) => r.user).includes(user.id) && (
										<>
											<div
												className="tooltip w-full md:hidden h-full flex items-center justify-end pl-8"
												data-tip="Your screen size is too small to perform an assignment">
												<Button
													disabled={moment(assignment.startDate).isAfter(moment())}
													className="w-full h-full !rounded-xl"
													variant="outline">
													Start
												</Button>
											</div>
											<Button
												disabled={moment(assignment.startDate).isAfter(moment())}
												className="w-full max-w-[50%] h-full !rounded-xl -md:hidden"
												onClick={() => startAssignment(assignment)}
												variant="outline">
												Start
											</Button>
										</>
									)}
									{assignment.results.map((r) => r.user).includes(user.id) && (
										<Button
											onClick={() => router.push("/record")}
											color="green"
											className="w-full max-w-[50%] h-full !rounded-xl -md:hidden"
											variant="outline">
											Submitted
										</Button>
									)}
								</div>
							</div>
						))}
				</span>
			</section>

			<section className="flex flex-col gap-3">
				<span className="font-bold text-lg">Score History</span>
				<div className="grid -md:grid-rows-4 md:grid-cols-2 gap-6">
					{MODULE_ARRAY.map((module) => (
						<div className="border border-mti-gray-anti-flash rounded-xl flex flex-col gap-2 p-4" key={module}>
							<div className="flex gap-2 md:gap-3 items-center">
								<div className="w-8 h-8 md:w-12 md:h-12 bg-mti-gray-smoke flex items-center justify-center rounded-lg md:rounded-xl">
									{module === "reading" && <BsBook className="text-ielts-reading w-4 h-4 md:w-5 md:h-5" />}
									{module === "listening" && <BsHeadphones className="text-ielts-listening w-4 h-4 md:w-5 md:h-5" />}
									{module === "writing" && <BsPen className="text-ielts-writing w-4 h-4 md:w-5 md:h-5" />}
									{module === "speaking" && <BsMegaphone className="text-ielts-speaking w-4 h-4 md:w-5 md:h-5" />}
								</div>
								<div className="flex justify-between w-full">
									<span className="font-bold md:font-extrabold text-sm">{capitalize(module)}</span>
									<span className="text-sm font-normal text-mti-gray-dim">
										Level {user.levels[module]} / Level {user.desiredLevels[module]}
									</span>
								</div>
							</div>
							<div className="md:pl-14">
								<ProgressBar
									color={module}
									label=""
									percentage={Math.round((user.levels[module] * 100) / user.desiredLevels[module])}
									className="w-full h-2"
								/>
							</div>
						</div>
					))}
				</div>
			</section>
		</>
	);
}