/**
 * @file AutostartSettings — Settings → About's "Start automatically" switch:
 * whether the dashboard starts at boot/login through the per-user service
 * (systemd `--user` unit, or a LaunchAgent on macOS), over
 * `GET/PUT /api/settings/autostart`. Off by default; a change never starts or
 * stops the running server. Beside it, **Quit AgentHub** (issue #65, 9router's
 * tray Quit): `POST /api/settings/quit` closes every workspace terminal and
 * stops the server, which stays stopped until `agenthub start` — or the next
 * boot/login while the switch is on. Between them, the status-area icon switch
 * (`GET/PUT /api/settings/tray`, on by default — server/lib/tray.js). Last,
 * **Uninstall AgentHub**: `POST /api/settings/uninstall` removes AgentHub from
 * the machine, database included (scripts/uninstall.js).
 * @author Nguyễn Ngọc Trí Vĩ <vinnt@smartgift.vn>
 */

import { useEffect, useState } from "react";
import { useTranslation } from "react-i18next";
import { api, type AutostartStatus, type TrayStatus } from "../../lib/api";
import { toast } from "../../lib/toast";
import { confirmDialog } from "../../lib/confirm";
import { SettingsRow, SettingsSection, SettingsSwitchRow } from "./SettingsRow";

export function AutostartSettings() {
  const { t } = useTranslation("settings");
  const [status, setStatus] = useState<AutostartStatus | null>(null);
  const [saving, setSaving] = useState(false);

  useEffect(() => {
    api.settings.autostart
      .get()
      .then(setStatus)
      .catch(() => {});
  }, []);

  const change = async (enabled: boolean) => {
    setSaving(true);
    try {
      setStatus(await api.settings.autostart.set(enabled));
    } catch (err) {
      toast.error(err instanceof Error ? err.message : String(err));
    } finally {
      setSaving(false);
    }
  };

  const [tray, setTray] = useState<TrayStatus | null>(null);
  useEffect(() => {
    api.settings.tray
      .get()
      .then(setTray)
      .catch(() => {});
  }, []);
  const changeTray = async (enabled: boolean) => {
    try {
      setTray(await api.settings.tray.set(enabled));
    } catch (err) {
      toast.error(err instanceof Error ? err.message : String(err));
    }
  };

  const [quitting, setQuitting] = useState(false);
  const quit = async () => {
    const ok = await confirmDialog({
      title: t("quit.confirmTitle"),
      message: t(status?.enabled ? "quit.confirmMessageAutostart" : "quit.confirmMessage"),
      confirmLabel: t("quit.button"),
    });
    if (!ok) return;
    setQuitting(true);
    try {
      await api.settings.quit();
      toast.success(t("quit.done"));
    } catch (err) {
      setQuitting(false);
      toast.error(err instanceof Error ? err.message : String(err));
    }
  };

  const [uninstalling, setUninstalling] = useState(false);
  const uninstall = async () => {
    const ok = await confirmDialog({
      title: t("uninstall.confirmTitle"),
      message: t("uninstall.confirmMessage"),
      confirmLabel: t("uninstall.button"),
    });
    if (!ok) return;
    setUninstalling(true);
    try {
      const { log } = await api.settings.uninstall();
      toast.success(t("uninstall.done", { log }));
    } catch (err) {
      setUninstalling(false);
      toast.error(err instanceof Error ? err.message : String(err));
    }
  };

  const note = !status
    ? undefined
    : !status.available
      ? t("autostart.unavailable")
      : status.foreign
        ? t("autostart.foreign")
        : t(`autostart.desc_${status.kind}`);

  return (
    <SettingsSection id="autostart" title={t("autostart.title")}>
      <SettingsSwitchRow
        label={t("autostart.label")}
        description={note}
        checked={!!status?.enabled}
        disabled={!status?.available || status.foreign || saving}
        onChange={(v) => void change(v)}
      />
      <SettingsSwitchRow
        label={t("tray.label")}
        description={tray && !tray.available ? t("tray.unavailable") : t("tray.desc")}
        checked={!!tray?.available && tray.enabled}
        disabled={!tray?.available}
        onChange={(v) => void changeTray(v)}
      />
      <SettingsRow
        label={t("quit.label")}
        description={t("quit.desc")}
        control={
          <button
            type="button"
            data-testid="quit-agenthub"
            disabled={quitting}
            onClick={() => void quit()}
            className="btn-ghost text-xs text-status-danger disabled:opacity-40"
          >
            {t("quit.button")}
          </button>
        }
      />
      <SettingsRow
        label={t("uninstall.label")}
        description={t("uninstall.desc")}
        control={
          <button
            type="button"
            data-testid="uninstall-agenthub"
            disabled={uninstalling}
            onClick={() => void uninstall()}
            className="btn-ghost text-xs text-status-danger disabled:opacity-40"
          >
            {t("uninstall.button")}
          </button>
        }
      />
    </SettingsSection>
  );
}