import { useState } from "react";
import Image from "next/image";
import { useHabcoinInventoryQuery } from "@/hooks/marriage/use-habcoin-inventory";
import { DiscountWidget } from "./discount-widget";
import type { CheckDiscountResult } from "@/hooks/marriage/use-validate-discount";
import {
  buyHabibCoinPackages,
  isInFlutterWebView,
} from "@/lib/webview-actions";
import { useI18n } from "@/translations/provider";
import InformationSheet from "./information-sheet";
import { LoadingThreeDot } from "./loading-three-dot";

type SubscriptionRequiredSheetProps = {
  onClose: () => void;
  onPayment: (discountCode?: string) => void;
  isPaymentPending?: boolean;
  /** Payment error to display above the buttons (e.g. "Not enough coins"). */
  errorMessage?: string | null;
  /** Show the "Buy Habib Coins" button (Flutter opens its packages page). */
  showBuyCoins?: boolean;
  price?: number;
  planId?: number | string;
};

export function SubscriptionRequiredSheet({
  onClose,
  onPayment,
  isPaymentPending = false,
  errorMessage = null,
  showBuyCoins = false,
  price = 50,
  planId,
}: SubscriptionRequiredSheetProps) {
  const { dictionary: t } = useI18n();
  const [appliedDiscount, setAppliedDiscount] =
    useState<CheckDiscountResult | null>(null);

  const { data: inventory, isLoading: isInventoryLoading } =
    useHabcoinInventoryQuery();

  const finalPrice = appliedDiscount?.valid
    ? appliedDiscount.discountedPrice
    : price;
  const balance = inventory?.coin_balance ?? 0;
  const hasEnoughCoins =
    !showBuyCoins && (inventory === undefined ? true : balance >= finalPrice);

  if (isInventoryLoading) {
    return <InformationSheet isLoading={true} onClose={onClose} />;
  }

  return (
    <InformationSheet
      icon="coin"
      title={
        !hasEnoughCoins ? (
          <span className="text-[#BD3F3F]">
            {t["You do not have enough Habib Coins"] ||
              "You do not have enough Habib Coins"}
          </span>
        ) : (
          t["Subscription required"] || "Subscription required"
        )
      }
      description={
        !hasEnoughCoins ? (
          <p className="text-[14px] text-[#4D4D4D] leading-[1.3] font-normal text-center">
            {t[
              "Please add more Habib Coins to your balance (or use discount code), so that you can use them to access this content"
            ] ||
              "Please add more Habib Coins to your balance (or use discount code), so that you can use them to access this content"}
          </p>
        ) : (
          <div className="space-y-4 text-left">
            <p className="text-sm text-center leading-[1.45] font-medium text-[#2B2B2B]">
              {t[
                "To view profiles, you need a subscription. Each subscription includes up to {count} matches."
              ]?.replace("{count}", "3") || (
                <>
                  To view profiles, you need a subscription. Each subscription
                  includes up to{" "}
                  <span className="font-bold underline decoration-[1.5px] underline-offset-2">
                    3
                  </span>{" "}
                  matches.
                </>
              )}
            </p>

            <div className="rounded-[12px] border border-[#FF4F67] bg-[#FFECEF] px-3.5 py-2.5 text-center">
              <p className="text-xs leading-[1.45] font-semibold text-[#FF4F67]">
                {t[
                  "To view profiles, a subscription is required. This helps cover our support and matching services and applies only to male users"
                ] ||
                  "To view profiles, a subscription is required. This helps cover our support and matching services and applies only to male users"}
              </p>
            </div>
          </div>
        )
      }
      onClose={onClose}
      buttons={({ close }) => (
        <div className="space-y-3">
          {planId ? (
            <DiscountWidget
              objectId={planId}
              onDiscountApplied={(res) => setAppliedDiscount(res)}
              onDiscountCleared={() => setAppliedDiscount(null)}
            />
          ) : null}

          {errorMessage && (
            <div className="w-full bg-[#FEF2F2] text-[#B91C1C] text-xs p-3 rounded-[11px] text-center font-medium">
              {errorMessage}
            </div>
          )}

          <div className="grid w-full grid-cols-[33fr_67fr] gap-3">
            <button
              type="button"
              className="appearance-none border-0 bg-transparent p-0 text-left min-w-0"
              onClick={close}
            >
              <div className="inline-flex w-full items-center justify-center rounded-[11px] border border-[#747474] bg-transparent px-2 h-[52px] text-[16px] font-semibold text-[#747474] transition-opacity active:opacity-90 min-w-0">
                <span className="truncate">{t["Back"] || "Back"}</span>
              </div>
            </button>

            {!hasEnoughCoins ? (
              <button
                type="button"
                className="appearance-none border-0 bg-transparent p-0 text-left min-w-0"
                onClick={() => buyHabibCoinPackages()}
              >
                <div className="inline-flex w-full items-center justify-center gap-2 rounded-[11px] bg-[#F0445B] px-4 h-[52px] text-[16px] font-semibold text-white shadow-[0_10px_18px_rgba(240,68,91,0.28)] transition-opacity active:opacity-90 min-w-0">
                  <span className="truncate">
                    {t["Buy Habib Coins"] || "Buy Habib Coins"}
                  </span>
                </div>
              </button>
            ) : (
              <button
                type="button"
                disabled={isPaymentPending}
                className="appearance-none border-0 bg-transparent p-0 text-left disabled:cursor-not-allowed disabled:opacity-70 min-w-0"
                onClick={() =>
                  onPayment(
                    appliedDiscount?.valid ? appliedDiscount.code : undefined,
                  )
                }
              >
                <div className="inline-flex w-full items-center justify-center gap-2 rounded-[11px] bg-[#F0445B] px-4 h-[52px] text-[16px] font-semibold text-white shadow-[0_10px_18px_rgba(240,68,91,0.28)] transition-opacity active:opacity-90 min-w-0">
                  {isPaymentPending ? (
                    <LoadingThreeDot />
                  ) : (
                    <>
                      <span className="truncate">
                        {t["Payment"] || "Payment"}
                      </span>
                      <span className="inline-flex items-center gap-1 rounded-[12px] bg-black/15 px-[9px] py-[4px] text-xs font-semibold leading-none text-white shrink-0 min-w-0 whitespace-nowrap">
                        <Image
                          src="/assets/images/Inner Plugdsain Iframe.svg"
                          alt=""
                          aria-hidden="true"
                          width={16}
                          height={16}
                          className="shrink-0"
                        />
                        <span className="truncate">{finalPrice}</span>
                      </span>
                    </>
                  )}
                </div>
              </button>
            )}
          </div>
        </div>
      )}
    />
  );
}

export default SubscriptionRequiredSheet;