// frontend/components/settings/DataTab.tsx — 데이터 내보내기 + API 토큰 + 시스템 정보(읽기전용)
"use client";
import { useState } from "react";
import { Button } from "@/components/Button";
import { Icon } from "@/components/Icon";
import { settingsApi } from "@/lib/settings/api";
import { useSystemConfig, useTokens } from "@/lib/hooks/useSettings";
import type { ToastFn } from "./SettingsClient";

const MODE_LABEL: Record<string, string> = {
  mock: "데모(mock)",
  real: "실연동",
  csv: "CSV",
  ics: "iCal",
  healthkit: "HealthKit",
  clipper: "클리퍼",
  imap: "IMAP",
};
const DOMAIN_LABEL: Record<string, string> = {
  calendar: "일정",
  mail: "메일",
  chat: "채팅",
  finance: "금융",
  health: "건강",
  knowledge: "지식",
};

export function DataTab({ toast }: { toast: ToastFn }) {
  const { data: sys } = useSystemConfig();
  const { data: tokens, refresh } = useTokens();
  const [exporting, setExporting] = useState(false);
  const [tokenName, setTokenName] = useState("");
  const [created, setCreated] = useState<{ name: string; token: string } | null>(null);

  const onExport = async () => {
    setExporting(true);
    try {
      const blob = await settingsApi.exportData();
      const url = URL.createObjectURL(blob);
      const a = document.createElement("a");
      a.href = url;
      a.download = "ari-export.zip";
      document.body.appendChild(a);
      a.click();
      a.remove();
      URL.revokeObjectURL(url);
      toast("내보내기를 시작했어요", "green");
    } catch {
      toast("내보내기에 실패했어요", "coral");
    } finally {
      setExporting(false);
    }
  };

  const onCreate = async () => {
    const name = tokenName.trim() || "API 토큰";
    try {
      const t = await settingsApi.createToken(name);
      if (t.token) setCreated({ name: t.name, token: t.token });
      setTokenName("");
      await refresh();
      toast("토큰을 발급했어요", "green");
    } catch {
      toast("토큰 발급에 실패했어요", "coral");
    }
  };

  const onRevoke = async (id: string) => {
    try {
      await settingsApi.revokeToken(id);
      await refresh();
      toast("토큰을 폐기했어요", "faint");
    } catch {
      toast("폐기에 실패했어요", "coral");
    }
  };

  const onCopy = async (text: string) => {
    try {
      await navigator.clipboard.writeText(text);
      toast("클립보드에 복사했어요", "blue");
    } catch {
      toast("복사에 실패했어요", "amber");
    }
  };

  const activeTokens = (tokens ?? []).filter((t) => !t.revoked);

  return (
    <section className="set-sec" aria-label="데이터 · 보안">
      <header className="set-sechead">
        <h2>데이터 · 보안</h2>
        <p>내 데이터를 내보내거나, API 토큰을 관리하고, 시스템 구성을 확인해요.</p>
      </header>

      {/* 데이터 내보내기 */}
      <div className="set-card set-row-between">
        <div className="sp-meta">
          <b>데이터 내보내기</b>
          <span className="set-hint">작업·인박스·일정·메일 등 내 데이터를 ZIP으로 받아요.</span>
        </div>
        <Button variant="glass" icon="upload" onClick={onExport} disabled={exporting}>
          {exporting ? "준비 중…" : "ZIP 내보내기"}
        </Button>
      </div>

      {/* API 토큰 */}
      <div className="set-card">
        <header className="set-cardhead">
          <h3>
            <Icon name="key" /> API 토큰
          </h3>
          <span className="set-hint">외부에서 아리 API에 접근할 때 사용해요.</span>
        </header>

        <div className="set-tokenform">
          <input
            className="set-input"
            value={tokenName}
            maxLength={40}
            placeholder="토큰 이름 (예: CLI, 자동화)"
            aria-label="토큰 이름"
            onChange={(e) => setTokenName(e.target.value)}
          />
          <Button variant="lime" icon="plus" onClick={onCreate}>
            발급
          </Button>
        </div>

        {created && (
          <div className="set-reveal" role="status">
            <div className="sr-head">
              <Icon name="lock" />
              <b>새 토큰 — 지금만 보여요</b>
            </div>
            <code className="sr-token">{created.token}</code>
            <div className="sr-actions">
              <button type="button" className="set-chip" onClick={() => onCopy(created.token)}>
                <Icon name="layers" /> 복사
              </button>
              <button type="button" className="set-chip" onClick={() => setCreated(null)}>
                <Icon name="tick" /> 확인했어요
              </button>
            </div>
          </div>
        )}

        {activeTokens.length === 0 ? (
          <div className="set-empty-row">발급된 토큰이 없어요.</div>
        ) : (
          <ul className="set-tokenlist">
            {activeTokens.map((t) => (
              <li key={t.id}>
                <span className="tk-ic" aria-hidden>
                  <Icon name="key" />
                </span>
                <span className="tk-meta">
                  <b>{t.name}</b>
                  <small>
                    {t.id} · {new Date(t.created_at).toLocaleDateString("ko-KR")}
                  </small>
                </span>
                <button
                  type="button"
                  className="set-chip danger"
                  onClick={() => onRevoke(t.id)}
                  aria-label={`${t.name} 토큰 폐기`}
                >
                  <Icon name="trash" /> 폐기
                </button>
              </li>
            ))}
          </ul>
        )}
      </div>

      {/* 시스템 정보 (읽기 전용) */}
      <div className="set-card">
        <header className="set-cardhead">
          <h3>시스템</h3>
          <span className="set-hint">환경변수(.env)로 관리 · 읽기 전용</span>
        </header>
        <dl className="set-kv">
          <div>
            <dt>환경</dt>
            <dd>{sys?.env ?? "—"}</dd>
          </div>
          <div>
            <dt>인증</dt>
            <dd>{sys ? (sys.auth_enabled ? "켜짐" : "꺼짐(데모)") : "—"}</dd>
          </div>
          <div>
            <dt>백그라운드 워커</dt>
            <dd>{sys ? (sys.worker_enabled ? "켜짐" : "꺼짐(수동)") : "—"}</dd>
          </div>
          <div>
            <dt>데이터베이스</dt>
            <dd>{sys?.database ?? "—"}</dd>
          </div>
          <div>
            <dt>동기화 주기</dt>
            <dd>{sys ? `${sys.sync_interval_minutes}분` : "—"}</dd>
          </div>
          <div>
            <dt>웹 검색</dt>
            <dd>{sys?.web_search_provider ?? "—"}</dd>
          </div>
        </dl>

        {sys && (
          <div className="set-modes" aria-label="커넥터 기본 모드">
            {Object.entries(sys.connector_modes).map(([domain, mode]) => (
              <span key={domain} className="set-mode">
                {DOMAIN_LABEL[domain] ?? domain}
                <b>{MODE_LABEL[mode] ?? mode}</b>
              </span>
            ))}
          </div>
        )}
      </div>
    </section>
  );
}