"use client";

import dynamic from "next/dynamic";
import Link from "next/link";
import { useNodes } from "@/lib/useNodes";
import { useActiveCalls } from "@/lib/useCalls";
import { useActiveIncidents } from "@/lib/useIncidents";
import type { IncidentRecord } from "@/lib/types";

const MapView = dynamic(() => import("@/components/MapView"), { ssr: false });

const TYPE_COLORS: Record<string, string> = {
  fire:     "border-red-800 bg-red-950 text-red-300",
  police:   "border-blue-800 bg-blue-950 text-blue-300",
  ems:      "border-yellow-800 bg-yellow-950 text-yellow-300",
  accident: "border-orange-800 bg-orange-950 text-orange-300",
  other:    "border-gray-700 bg-gray-900 text-gray-300",
};

function IncidentCard({ incident }: { incident: IncidentRecord }) {
  const cls = TYPE_COLORS[incident.type ?? "other"] ?? TYPE_COLORS.other;
  return (
    <Link
      href={`/incidents/${incident.incident_id}`}
      className={`block border rounded-lg p-3 hover:brightness-110 transition-all ${cls}`}
    >
      <div className="flex items-center justify-between gap-2 mb-1">
        <span className="text-xs font-mono font-semibold uppercase tracking-wide">
          {incident.type ?? "other"}
        </span>
        <span className="text-xs opacity-60 font-mono">
          {incident.call_ids.length} call{incident.call_ids.length !== 1 ? "s" : ""}
        </span>
      </div>
      <p className="text-sm font-bold leading-tight">{incident.title ?? "Incident"}</p>
      {incident.location && (
        <p className="text-xs opacity-70 mt-1 font-mono truncate">{incident.location}</p>
      )}
      {!incident.location_coords && (
        <p className="text-xs opacity-40 mt-1 font-mono italic">location not geocoded yet</p>
      )}
    </Link>
  );
}

export default function MapPage() {
  const { nodes, loading } = useNodes();
  const activeCalls = useActiveCalls();
  const incidents   = useActiveIncidents();

  return (
    <div className="space-y-4">
      <h1 className="text-xl font-bold text-white font-mono">Map</h1>

      {loading ? (
        <div className="flex items-center justify-center h-96 text-gray-600 font-mono text-sm">
          Loading map…
        </div>
      ) : (
        <div className="h-[50vh] sm:h-[65vh] min-h-[400px]">
          <MapView nodes={nodes} activeCalls={activeCalls} incidents={incidents} />
        </div>
      )}

      {/* Active incidents — shown even without geocoded location */}
      {incidents.length > 0 && (
        <section>
          <h2 className="text-sm font-semibold text-gray-400 uppercase tracking-wider mb-3">
            Active Incidents ({incidents.length})
          </h2>
          <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 xl:grid-cols-4 gap-3">
            {incidents.map((inc) => (
              <IncidentCard key={inc.incident_id} incident={inc} />
            ))}
          </div>
        </section>
      )}
    </div>
  );
}