"use client";

import { useMemo, useState } from "react";
import { useTranslations } from "next-intl";
import { useQuery } from "@tanstack/react-query";
import { PageShell } from "@/components/layout/page-shell";
import { StatusBadge } from "@/components/shared/status-badge";
import { TableToolbar, matchesSearch } from "@/components/table/table-toolbar";
import { TablePanel } from "@/components/table/table-panel";
import { useAuth } from "@/providers/auth-provider";
import { mockApi } from "@/lib/api/mock-client";
import { formatDate, formatEtb } from "@/lib/format";
import { Link } from "@/i18n/routing";
import { Button } from "@/components/ui/button";
import {
  Table,
  TableBody,
  TableCell,
  TableHead,
  TableHeader,
  TableRow,
} from "@/components/ui/table";
import { ArrowLeft } from "lucide-react";

export default function MemberOrdersPage() {
  const t = useTranslations();
  const { user } = useAuth();
  const memberId = user?.memberId ?? "mem_001";
  const [search, setSearch] = useState("");
  const [statusFilter, setStatusFilter] = useState("all");

  const { data: orders, isLoading } = useQuery({
    queryKey: ["member-orders", memberId],
    queryFn: () => mockApi.getMemberOrders(memberId),
    enabled: !!user,
  });

  const filtered = useMemo(() => {
    return (orders ?? []).filter((order) => {
      if (statusFilter !== "all" && order.status !== statusFilter) return false;
      return matchesSearch([order.id, order.status], search);
    });
  }, [orders, search, statusFilter]);

  if (!user) return null;

  return (
    <PageShell
      title={t("member.ordersTitle")}
      description={t("member.ordersSubtitle")}
      breadcrumb
      extra={
        <Button variant="outline" className="gap-2" render={<Link href="/me" />}>
          <ArrowLeft className="size-4" />
          {t("common.back")}
        </Button>
      }
    >
      <TablePanel
        loading={isLoading}
        toolbar={
          <TableToolbar
            search={search}
            onSearchChange={setSearch}
            searchPlaceholder={t("common.searchPlaceholder")}
            filters={[
              {
                id: "status",
                label: t("common.status"),
                value: statusFilter,
                onChange: setStatusFilter,
                allLabel: t("common.all"),
                options: [
                  { value: "placed", label: "Placed" },
                  { value: "processing", label: "Processing" },
                  { value: "delivered", label: "Delivered" },
                  { value: "cancelled", label: "Cancelled" },
                ],
              },
            ]}
            resultCount={filtered.length}
            resultLabel={t("common.results")}
          />
        }
      >
        <Table>
          <TableHeader>
            <TableRow>
              <TableHead>{t("member.order")}</TableHead>
              <TableHead className="text-right">{t("statements.total")}</TableHead>
              <TableHead className="text-right">{t("statements.covered")}</TableHead>
              <TableHead className="text-right">{t("member.memberPaid")}</TableHead>
              <TableHead>{t("member.items")}</TableHead>
              <TableHead>{t("common.status")}</TableHead>
              <TableHead>{t("member.placed")}</TableHead>
              <TableHead>{t("common.actions")}</TableHead>
            </TableRow>
          </TableHeader>
          <TableBody>
            {filtered.length ? (
              filtered.map((order) => (
                <TableRow key={order.id}>
                  <TableCell className="font-mono text-xs">{order.id}</TableCell>
                  <TableCell className="text-right">{formatEtb(order.totalEtb)}</TableCell>
                  <TableCell className="text-right">{formatEtb(order.coveredEtb)}</TableCell>
                  <TableCell className="text-right">{formatEtb(order.memberPaidEtb)}</TableCell>
                  <TableCell>{order.itemCount}</TableCell>
                  <TableCell>
                    <StatusBadge status={order.status} />
                  </TableCell>
                  <TableCell>{formatDate(order.placedAt)}</TableCell>
                  <TableCell>
                    <Button
                      variant="ghost"
                      size="sm"
                      render={<Link href={`/me/orders/${order.id}`} />}
                    >
                      {t("common.view")}
                    </Button>
                  </TableCell>
                </TableRow>
              ))
            ) : (
              <TableRow>
                <TableCell colSpan={8} className="h-28 text-center text-sm text-muted-foreground">
                  {t("common.empty")}
                </TableCell>
              </TableRow>
            )}
          </TableBody>
        </Table>
      </TablePanel>
    </PageShell>
  );
}