"use client";

/**
 * QuickLaunch — homepage form to fire an investigation in 1 click without
 * opening the chat.
 *
 * Detective dropdown picks the kind; the form swaps the input label based
 * on what that kind needs (topic, question, hypothesis_id, person_id).
 * Submit POSTs to /api/bureau/launch which inserts the job + returns the
 * job_id; the UI then routes to /jobs/[id].
 */
import { useState } from "react";
import { useRouter } from "next/navigation";
import { ArrowUpRight } from "lucide-react";

interface DetectiveOption {
  slug: string;
  label: string;
  kind: string;
  inputLabel: string;
  placeholder: string;
  field: "question" | "topic" | "hypothesis_id" | "person_id";
  tone: string;
}

// Single reader-facing option: assemble a case-file narrative on any topic.
// The pipeline (multiple internal mind-clones in parallel) is hidden.
const OPTIONS: DetectiveOption[] = [
  {
    slug: "case",
    label: "Investigar um caso",
    kind: "case_report",
    inputLabel: "Tópico ou pergunta",
    placeholder: "as bolas de fogo verdes sobre Sandia",
    field: "topic",
    tone: "text-[#e0c080] border-[#e0c080]",
  },
];

export function QuickLaunch() {
  const router = useRouter();
  const opt = OPTIONS[0];
  const [value, setValue] = useState("");
  const [pending, setPending] = useState(false);
  const [error, setError] = useState<string | null>(null);

  async function submit(e: React.FormEvent) {
    e.preventDefault();
    if (!value.trim()) return;
    setPending(true);
    setError(null);
    try {
      const payload: Record<string, string> = { kind: opt.kind };
      payload[opt.field] = value.trim();
      const r = await fetch("/api/bureau/launch", {
        method: "POST",
        headers: { "Content-Type": "application/json" },
        body: JSON.stringify(payload),
      });
      const data = (await r.json()) as { job_id?: string; error?: string; message?: string };
      if (!r.ok || !data.job_id) {
        setError(data.error || data.message || `HTTP ${r.status}`);
        setPending(false);
        return;
      }
      router.push(`/jobs/${data.job_id}`);
    } catch (e) {
      setError((e as Error).message);
      setPending(false);
    }
  }

  return (
    <form
      onSubmit={submit}
      className="rounded-lg border border-[rgba(224,192,128,0.18)] bg-[#0d1220] p-3 mb-5"
    >
      <div className="text-[10px] font-mono text-[#e0c080] uppercase tracking-wider mb-2">
        🛸 Investigar um caso
      </div>
      <div className="grid md:grid-cols-[1fr_auto] gap-2">
        <input
          type="text"
          value={value}
          onChange={(e) => setValue(e.target.value)}
          placeholder={opt.placeholder}
          aria-label={opt.inputLabel}
          className="bg-[#060a13] border border-[rgba(224,192,128,0.18)] rounded px-3 py-2 text-[13px] text-[#e7ecf3] placeholder:text-[#5a6678] font-sans"
        />
        <button
          type="submit"
          disabled={pending || !value.trim()}
          className="px-4 py-2 rounded border border-[#e0c080] bg-[#e0c080]/10 hover:bg-[#e0c080]/20 text-[#e0c080] text-[12px] font-mono inline-flex items-center gap-1 disabled:opacity-40 disabled:cursor-not-allowed"
        >
          {pending ? "enfileirando…" : "investigar"}
          {!pending && <ArrowUpRight size={12} />}
        </button>
      </div>
      <div className="text-[10px] font-mono text-[#5a6678] mt-2">
        {opt.inputLabel}
        {error && <span className="text-[#ff6ec7] ml-2">· {error}</span>}
      </div>
    </form>
  );
}
