import {Link} from 'react-router';
import {Money} from '@shopify/hydrogen';
import type {CustomerFragment} from 'customer-accountapi.generated';
import {AccountWishlistStat} from '~/components/AccountWishlistStat';
import {
  getCustomerDisplayName,
  getCustomerInitials,
} from '~/lib/customerDisplay';

export type AccountOverviewOrder = {
  id: string;
  name: string;
  processedAt: string | null;
  fulfillmentStatus: string | null;
  totalPrice: {
    amount: string;
    currencyCode: string;
  } | null;
  lineItems: {
    nodes: Array<{
      title: string;
      quantity: number;
      price: {
        amount: string;
        currencyCode: string;
      } | null;
    }>;
  } | null;
};

export type AccountOverviewData = {
  creationDate: string | null;
  orders: {
    pageInfo: {hasNextPage: boolean};
    nodes: AccountOverviewOrder[];
  } | null;
};

function sumTotalSpent(orders: AccountOverviewOrder[], currency: string) {
  let total = 0;
  for (const o of orders) {
    if (o.totalPrice && o.totalPrice.currencyCode === currency) {
      total += Number.parseFloat(o.totalPrice.amount) || 0;
    }
  }
  return total;
}

type Props = {
  customer: CustomerFragment;
  overview: AccountOverviewData;
};

/**
 * Figma 123:11834 account overview: profile band, stat tiles, recent order.
 */
export function AccountOverview({customer, overview}: Props) {
  const orders = overview.orders?.nodes ?? [];
  const hasNext = overview.orders?.pageInfo.hasNextPage ?? false;
  const count = orders.length;
  const orderCountLabel = hasNext ? `${count}+` : String(count);

  const spendCurrency = orders.find((o) => o.totalPrice)?.totalPrice
    ?.currencyCode;

  const recent = orders[0] ?? null;

  const memberLabel =
    overview.creationDate ?
      `Member since ${new Date(overview.creationDate).getFullYear()}`
    : 'Member';

  return (
    <div className="flex flex-col gap-6">
      <div className="flex flex-wrap items-center gap-4 rounded-sm bg-[#5d0b24] px-5 py-5 text-white">
        <div
          aria-hidden
          className="flex h-16 w-16 shrink-0 items-center justify-center rounded-full border border-white/30 bg-white/10 font-['Raleway',sans-serif] text-lg font-medium uppercase tracking-wide"
        >
          {getCustomerInitials(customer)}
        </div>
        <div className="min-w-0">
          <p className="font-['Raleway',sans-serif] text-base font-medium tracking-tight sm:text-lg">
            {getCustomerDisplayName(customer) || 'Account'}
          </p>
          <p className="mt-0.5 font-['Raleway',sans-serif] text-sm text-white/85">
            {memberLabel}
          </p>
        </div>
      </div>

      <ul className="grid grid-cols-1 gap-3 sm:grid-cols-3 sm:gap-4">
        <AccountWishlistStat />
        <li className="border border-[rgba(26,26,26,0.1)] bg-[#faf8f3] px-4 py-4 text-center sm:text-left">
          <p className="font-['Raleway',sans-serif] text-xs uppercase tracking-[0.12em] text-[#5a5550]">
            Orders
          </p>
          <p className="mt-1 font-['Raleway',sans-serif] text-xl font-medium text-[#1a1a18]">
            {orderCountLabel}
          </p>
        </li>
        <li className="border border-[rgba(26,26,26,0.1)] bg-[#faf8f3] px-4 py-4 text-center sm:text-left">
          <p className="font-['Raleway',sans-serif] text-xs uppercase tracking-[0.12em] text-[#5a5550]">
            Total spent
          </p>
          <div className="mt-1 font-['Raleway',sans-serif] text-xl font-medium text-[#1a1a18]">
            {orders.length > 0 && spendCurrency ?
              <Money
                data={{
                  amount: String(sumTotalSpent(orders, spendCurrency)),
                  currencyCode: spendCurrency,
                }}
              />
            : '—'}
          </div>
        </li>
      </ul>

      <section className="border border-[rgba(26,26,26,0.1)] bg-white" aria-label="Recent order">
        <div className=" px-4 pt-2 pb-3">
          <h2 className="m-0 font-['Cormorant_Garamond',serif] text-[29.75px] font-light not-italic leading-[33.32px] tracking-[-0.446px] text-[#1A1A1A]">
            Recent order
          </h2>
        </div>
        {recent ?
          <div className="px-4 py-4">
            <div className="flex flex-col gap-1 sm:flex-row sm:items-baseline sm:justify-between">
              <p className="font-['Raleway',sans-serif] text-base font-medium text-[#1a1a18]">
                {recent.name}
              </p>
              <p className="font-['Raleway',sans-serif] text-sm text-[#5a5550]">
                {recent.processedAt ?
                  new Date(recent.processedAt).toLocaleDateString()
                : '—'}
              </p>
            </div>
            {recent.fulfillmentStatus ?
              <p className="mt-1 font-['Raleway',sans-serif] text-sm text-[#5a5550]">
                {recent.fulfillmentStatus}
              </p>
            : null}
            {recent.lineItems?.nodes.length ?
              <ul className="mt-3 space-y-1 border-t border-[rgba(26,26,26,0.06)] pt-3">
                {recent.lineItems.nodes.map((line, i) => (
                  <li
                    className="flex flex-wrap items-baseline justify-between gap-2 text-sm"
                    key={`${line.title}-${i}`}
                  >
                    <span className="font-['Raleway',sans-serif] text-[#1a1a18]">
                      {line.title}{' '}
                      <span className="text-[#5a5550]">×{line.quantity}</span>
                    </span>
                    {line.price ?
                      <span className="font-['Raleway',sans-serif] text-[#1a1a18]">
                        <Money data={line.price} />
                      </span>
                    : null}
                  </li>
                ))}
              </ul>
            : null}
            {recent.totalPrice ?
              <div className="mt-3 flex justify-end border-t border-[rgba(26,26,26,0.06)] pt-3 font-['Raleway',sans-serif] text-sm text-[#1a1a18]">
                Total:{' '}
                <span className="ml-1">
                  <Money data={recent.totalPrice} />
                </span>
              </div>
            : null}
            <p className="mt-4">
              <Link
                className="font-['Raleway',sans-serif] text-sm font-medium text-[#5d0b24] no-underline hover:opacity-80"
                to={`/account/orders/${btoa(recent.id)}`}
              >
                View order
              </Link>
            </p>
          </div>
        : <p className="px-4 pt-10 pb-8 text-center font-['Raleway',sans-serif] text-sm text-[#5a5550]">
            You haven&rsquo;t placed an order yet.{' '}
            <Link className="text-[#5d0b24] no-underline hover:opacity-80" to="/collections/all">
              Browse the shop
            </Link>
          </p>
        }
      </section>
    </div>
  );
}