/* eslint-disable @next/next/no-img-element */
import useUsers from "@/hooks/useUsers";
import { User } from "@/interfaces/user";
import clsx from "clsx";
import { capitalize } from "lodash";
import { useEffect, useMemo, useState } from "react";
import useInvites from "@/hooks/useInvites";
import { BsArrowRepeat } from "react-icons/bs";
import InviteCard from "@/components/Medium/InviteCard";
import { useRouter } from "next/router";
import { ToastContainer } from "react-toastify";
import PaymobPayment from "@/components/PaymobPayment";
import moment from "moment";
import { EntityWithRoles } from "@/interfaces/entity";
import { Discount, Package } from "@/interfaces/paypal";
import { isAdmin } from "@/utils/users";
import { useAllowedEntities } from "@/hooks/useEntityPermissions";
import Select from "@/components/Low/Select";

interface Props {
  user: User;
  discounts: Discount[];
  packages: Package[];
  entities: EntityWithRoles[];
  hasExpired?: boolean;
  reload: () => void;
}

export default function PaymentDue({
  user,
  discounts = [],
  entities = [],
  packages = [],
  hasExpired = false,
  reload,
}: Props) {
  const [isLoading, setIsLoading] = useState(false);
  const [entity, setEntity] = useState<EntityWithRoles>();

  const router = useRouter();

  const { users } = useUsers();
  const {
    invites,
    isLoading: isInvitesLoading,
    reload: reloadInvites,
  } = useInvites({ to: user?.id });

  const isIndividual = useMemo(() => {
    if (isAdmin(user)) return false;
    if (user?.type !== "student") return false;

    return user.entities.length === 0;
  }, [user]);

  const appliedDiscount = useMemo(() => {
    const biggestDiscount = [...discounts]
      .sort((a, b) => b.percentage - a.percentage)
      .shift();

    if (
      !biggestDiscount ||
      (biggestDiscount.validUntil &&
        moment(biggestDiscount.validUntil).isBefore(moment()))
    )
      return 0;

    return biggestDiscount.percentage;
  }, [discounts]);

  const entitiesThatCanBePaid = useAllowedEntities(
    user,
    entities,
    "pay_entity"
  );

  useEffect(() => {
    if (entitiesThatCanBePaid.length > 0) setEntity(entitiesThatCanBePaid[0]);
  }, [entitiesThatCanBePaid]);

  return (
    <>
      <ToastContainer />
      {isLoading && (
        <div className="absolute left-0 top-0 z-[999] h-screen w-screen overflow-hidden bg-black/60">
          <div className="absolute left-1/2 top-1/2 flex h-fit w-fit -translate-x-1/2 -translate-y-1/2 flex-col items-center gap-8 text-white">
            <span
              className={clsx("loading loading-infinity w-48 animate-pulse")}
            />
            <span className={clsx("text-2xl font-bold animate-pulse")}>
              Completing your payment...
            </span>
            <span>
              If you canceled your payment or it failed, please click the button
              below to restart
            </span>
            <button
              onClick={() => setIsLoading(false)}
              className="border border-white rounded-full px-4 py-2 hover:bg-white/80 hover:text-black cursor-pointer transition ease-in-out duration-300"
            >
              Cancel Payment
            </button>
          </div>
        </div>
      )}
      <>
        {invites.length > 0 && (
          <section className="flex flex-col gap-1 md:gap-3">
            <div className="flex items-center gap-4">
              <div
                onClick={reloadInvites}
                className="text-mti-purple-light hover:text-mti-purple-dark flex cursor-pointer items-center gap-2 transition duration-300 ease-in-out"
              >
                <span className="text-mti-black text-lg font-bold">
                  Invites
                </span>
                <BsArrowRepeat
                  className={clsx(
                    "text-xl",
                    isInvitesLoading && "animate-spin"
                  )}
                />
              </div>
            </div>
            <span className="text-mti-gray-taupe scrollbar-hide flex gap-8 overflow-x-scroll">
              {invites.map((invite) => (
                <InviteCard
                  key={invite.id}
                  invite={invite}
                  users={users}
                  reload={() => {
                    reloadInvites();
                    router.reload();
                  }}
                />
              ))}
            </span>
          </section>
        )}

        <div className="flex w-full flex-col items-center justify-center gap-4 text-center">
          {hasExpired && (
            <span className="text-lg font-bold">
              You do not have time credits for your account type!
            </span>
          )}
          {isIndividual && (
            <div className="scrollbar-hide flex w-full flex-col items-center gap-12 overflow-x-scroll">
              <span className="max-w-lg">
                To add to your use of EnCoach, please purchase one of the time
                packages available below:
              </span>
              <div className="flex w-full flex-wrap justify-center gap-8">
                {packages.map((p) => (
                  <div
                    key={p.id}
                    className={clsx(
                      "flex flex-col items-start gap-6 rounded-xl bg-white p-4"
                    )}
                  >
                    <div className="mb-2 flex flex-col items-start">
                      <img
                        src="/logo_title.png"
                        alt="EnCoach's Logo"
                        className="w-32"
                      />
                      <span className="text-xl font-semibold">
                        EnCoach - {p.duration}{" "}
                        {capitalize(
                          p.duration === 1
                            ? p.duration_unit.slice(
                                0,
                                p.duration_unit.length - 1
                              )
                            : p.duration_unit
                        )}
                      </span>
                    </div>
                    <div className="flex w-full flex-col items-start gap-2">
                      {appliedDiscount === 0 && (
                        <span className="text-2xl">
                          {p.price} {p.currency}
                        </span>
                      )}
                      {appliedDiscount > 0 && (
                        <div className="flex items-center gap-2">
                          <span className="text-2xl line-through">
                            {p.price} {p.currency}
                          </span>
                          <span className="text-2xl text-mti-red-light">
                            {(
                              p.price -
                              p.price * (appliedDiscount / 100)
                            ).toFixed(2)}{" "}
                            {p.currency}
                          </span>
                        </div>
                      )}
                      <PaymobPayment
                        user={user}
                        setIsPaymentLoading={setIsLoading}
                        onSuccess={() => {
                          setTimeout(reload, 500);
                        }}
                        currency={p.currency}
                        duration={p.duration}
                        duration_unit={p.duration_unit}
                        price={
                          +(
                            p.price -
                            p.price * (appliedDiscount / 100)
                          ).toFixed(2)
                        }
                      />
                    </div>
                    <div className="flex flex-col items-start gap-1">
                      <span>This includes:</span>
                      <ul className="flex flex-col items-start text-sm">
                        <li>- Train your abilities for the IELTS exam</li>
                        <li>
                          - Gain insights into your weaknesses and strengths
                        </li>
                        <li>
                          - Allow yourself to correctly prepare for the exam
                        </li>
                      </ul>
                    </div>
                  </div>
                ))}
              </div>
            </div>
          )}

          {!isIndividual &&
            entitiesThatCanBePaid.length > 0 &&
            entity?.payment && (
              <div className="flex flex-col items-center gap-8">
                <div
                  className={clsx("flex flex-col items-center gap-4 w-full")}
                >
                  <label className="font-normal text-base text-mti-gray-dim">
                    Entity
                  </label>
                  <Select
                    defaultValue={{ value: entity?.id, label: entity?.label }}
                    options={entitiesThatCanBePaid.map((e) => ({
                      value: e.id,
                      label: e.label,
                      entity: e,
                    }))}
                    onChange={(e) => (e?.value ? setEntity(e?.entity) : null)}
                    className="!w-full max-w-[400px] self-center"
                  />
                </div>

                <span className="max-w-lg">
                  To add to your use of EnCoach and that of your students and
                  teachers, please pay your designated package below:
                </span>
                <div
                  className={clsx(
                    "flex flex-col items-start gap-6 rounded-xl bg-white p-4"
                  )}
                >
                  <div className="mb-2 flex flex-col items-start">
                    <img
                      src="/logo_title.png"
                      alt="EnCoach's Logo"
                      className="w-32"
                    />
                    <span className="text-xl font-semibold">
                      EnCoach - {12} Months
                    </span>
                  </div>
                  <div className="flex w-full flex-col items-start gap-2">
                    <span className="text-2xl">
                      {entity.payment.price} {entity.payment.currency}
                    </span>
                    <PaymobPayment
                      user={user}
                      setIsPaymentLoading={setIsLoading}
                      entity={entity}
                      currency={entity.payment.currency}
                      price={entity.payment.price}
                      duration={12}
                      duration_unit="months"
                      onSuccess={() => {
                        setIsLoading(false);
                        setTimeout(reload, 500);
                      }}
                    />
                  </div>
                  <div className="flex flex-col items-start gap-1">
                    <span>This includes:</span>
                    <ul className="flex flex-col items-start text-sm">
                      <li>
                        - Allow a total of {entity.licenses} students and
                        teachers to use EnCoach
                      </li>
                      <li>- Train their abilities for the IELTS exam</li>
                      <li>
                        - Gain insights into your students&apos; weaknesses and
                        strengths
                      </li>
                      <li>- Allow them to correctly prepare for the exam</li>
                    </ul>
                  </div>
                </div>
              </div>
            )}
          {!isIndividual && entitiesThatCanBePaid.length === 0 && (
            <div className="flex flex-col items-center">
              <span className="max-w-lg">
                You are not the person in charge of your time credits, please
                contact your administrator about this situation.
              </span>
              <span className="max-w-lg">
                If you believe this to be a mistake, please contact the
                platform&apos;s administration, thank you for your patience.
              </span>
            </div>
          )}
          {!isIndividual &&
            entitiesThatCanBePaid.length > 0 &&
            !entity?.payment && (
              <div className="flex flex-col items-center gap-8">
                <div
                  className={clsx("flex flex-col items-center gap-4 w-full")}
                >
                  <label className="font-normal text-base text-mti-gray-dim">
                    Entity
                  </label>
                  <Select
                    defaultValue={{
                      value: entity?.id || "",
                      label: entity?.label || "",
                    }}
                    options={entitiesThatCanBePaid.map((e) => ({
                      value: e.id,
                      label: e.label,
                      entity: e,
                    }))}
                    onChange={(e) => (e?.value ? setEntity(e?.entity) : null)}
                    className="!w-full max-w-[400px] self-center"
                  />
                </div>
                <span className="max-w-lg">
                  An admin nor your agent have yet set the price intended to
                  your requirements in terms of the amount of users you desire
                  and your expected monthly duration.
                </span>
                <span className="max-w-lg">
                  Please try again later or contact your agent or an admin,
                  thank you for your patience.
                </span>
              </div>
            )}
        </div>
      </>
    </>
  );
}