"use client";

import { useMemo, useState } from "react";
import type { Shipment } from "@/payload-types";
import { ShipmentCard } from "@/components/frontend/logistics/ShipmentCard";
import { Button } from "@/components/ui/button";
import { usePageCommands } from "@/components/command-palette/CommandPaletteContext";
import { CheckCircleIcon, ClockIcon, ListFilterIcon, TruckIcon, XCircleIcon } from "lucide-react";
import { isShipmentActive } from "@/lib/shipping/client";

const statusFilters = [
  { label: "All", value: null },
  { label: "Active", value: "active" },
  { label: "Completed", value: "completed" },
  { label: "Cancelled", value: "cancelled" },
  { label: "Stranded", value: "stranded" },
];

interface ShipmentsListProps {
  shipments: Shipment[];
}

export function ShipmentsList({ shipments }: ShipmentsListProps) {
  const [filter, setFilter] = useState<string | null>(null);

  usePageCommands([
    {
      id: "shipments:filter-all",
      group: "Shipments",
      label: "Filter: All Shipments",
      icon: ListFilterIcon,
      keywords: ["filter", "all", "shipments"],
      onSelect: () => setFilter(null),
    },
    {
      id: "shipments:filter-active",
      group: "Shipments",
      label: "Filter: Active Shipments",
      icon: ClockIcon,
      keywords: ["filter", "active", "in transit", "pending"],
      onSelect: () => setFilter("active"),
    },
    {
      id: "shipments:filter-completed",
      group: "Shipments",
      label: "Filter: Completed Shipments",
      icon: CheckCircleIcon,
      keywords: ["filter", "completed", "arrived", "done"],
      onSelect: () => setFilter("completed"),
    },
    {
      id: "shipments:filter-cancelled",
      group: "Shipments",
      label: "Filter: Cancelled Shipments",
      icon: XCircleIcon,
      keywords: ["filter", "cancelled", "failed"],
      onSelect: () => setFilter("cancelled"),
    },
    {
      id: "shipments:filter-stranded",
      group: "Shipments",
      label: "Filter: Stranded Shipments",
      icon: TruckIcon,
      keywords: ["filter", "stranded", "stuck"],
      onSelect: () => setFilter("stranded"),
    },
  ]);

  const filtered = useMemo(() => {
    if (!filter) return shipments;
    if (filter === "active") {
      return shipments.filter((s) => isShipmentActive(s));
    }
    return shipments.filter((s) => s.status === filter);
  }, [shipments, filter]);

  return (
    <div className="flex flex-col gap-4">
      <div className="flex flex-wrap gap-1.5">
        {statusFilters.map((f) => (
          <Button
            key={f.value ?? "all"}
            variant={filter === f.value ? "default" : "outline"}
            size="sm"
            className="h-7 text-xs"
            onClick={() => setFilter(f.value)}
          >
            {f.label}
          </Button>
        ))}
      </div>

      {filtered.length === 0 ? (
        <div className="flex flex-col items-center justify-center py-12 text-muted-foreground">
          <p className="text-sm">No shipments found.</p>
        </div>
      ) : (
        <div className="flex flex-col gap-2">
          {filtered.map((shipment) => (
            <ShipmentCard key={shipment.id} shipment={shipment} />
          ))}
        </div>
      )}
    </div>
  );
}