"use client";

import { useState } from "react";
import { useCalls } from "@/lib/useCalls";
import { useSystems } from "@/lib/useSystems";
import { CallRow } from "@/components/CallRow";

export default function CallsPage() {
  const [limitCount, setLimitCount] = useState(100);
  const { calls, loading } = useCalls(limitCount);
  const { systems } = useSystems();
  const systemMap = Object.fromEntries(systems.map((s) => [s.system_id, s]));

  const active = calls.filter((c) => c.status === "active");
  const ended  = calls.filter((c) => c.status === "ended");

  return (
    <div className="space-y-6">
      <div className="flex items-center justify-between">
        <h1 className="text-xl font-bold text-white font-mono">Calls</h1>
        <span className="text-xs text-gray-500 font-mono">{calls.length} loaded</span>
      </div>

      {active.length > 0 && (
        <section>
          <h2 className="text-sm font-semibold text-orange-400 uppercase tracking-wider mb-3">
            Live ({active.length})
          </h2>
          <div className="overflow-x-auto">
            <table className="w-full text-sm">
              <thead>
                <tr className="text-xs text-gray-500 uppercase tracking-wider border-b border-gray-800">
                  <th className="px-4 py-2 text-left">Time</th>
                  <th className="px-4 py-2 text-left">Talkgroup</th>
                  <th className="px-4 py-2 text-left">System</th>
                  <th className="px-4 py-2 text-left">Node</th>
                  <th className="px-4 py-2 text-left">Duration</th>
                  <th className="px-4 py-2 text-left">Audio</th>
                </tr>
              </thead>
              <tbody>
                {active.map((c) => (
                  <CallRow key={c.call_id} call={c} systemName={systemMap[c.system_id ?? ""]?.name} />
                ))}
              </tbody>
            </table>
          </div>
        </section>
      )}

      <section>
        <h2 className="text-sm font-semibold text-gray-400 uppercase tracking-wider mb-3">
          History
        </h2>
        {loading ? (
          <p className="text-gray-600 text-sm font-mono">Loading…</p>
        ) : ended.length === 0 ? (
          <p className="text-gray-600 text-sm font-mono">No calls recorded yet.</p>
        ) : (
          <>
            <div className="overflow-x-auto">
              <table className="w-full text-sm">
                <thead>
                  <tr className="text-xs text-gray-500 uppercase tracking-wider border-b border-gray-800">
                    <th className="px-4 py-2 text-left">Time</th>
                    <th className="px-4 py-2 text-left">Talkgroup</th>
                    <th className="px-4 py-2 text-left">System</th>
                    <th className="px-4 py-2 text-left">Node</th>
                    <th className="px-4 py-2 text-left">Duration</th>
                    <th className="px-4 py-2 text-left">Audio</th>
                  </tr>
                </thead>
                <tbody>
                  {ended.map((c) => (
                    <CallRow key={c.call_id} call={c} systemName={systemMap[c.system_id ?? ""]?.name} />
                  ))}
                </tbody>
              </table>
            </div>
            {ended.length >= limitCount && (
              <button
                onClick={() => setLimitCount((n) => n + 100)}
                className="mt-4 text-sm text-indigo-400 hover:text-indigo-300 font-mono transition-colors"
              >
                Load more
              </button>
            )}
          </>
        )}
      </section>
    </div>
  );
}