import type {
  ProxiFyreSetupProgress,
  ProxiFyreSetupStatus,
} from "../../api/tauriCommands";

interface ProxiFyreSetupStripProps {
  setupStatus: ProxiFyreSetupStatus | null;
  progress: ProxiFyreSetupProgress | null;
}

const SETUP_PLACEHOLDERS: ProxiFyreSetupStatus["items"] = [
  {
    id: "vc-runtime",
    name: "Среда запуска",
    installed: false,
    details: "Проверяю",
  },
  {
    id: "packet-filter",
    name: "Сетевой драйвер",
    installed: false,
    details: "Проверяю",
  },
  {
    id: "proxifyre",
    name: "Клиент ProxiFyre",
    installed: false,
    details: "Проверяю",
  },
];

export function ProxiFyreSetupStrip({
  setupStatus,
  progress,
}: ProxiFyreSetupStripProps) {
  const stripItems = setupStatus?.items ?? SETUP_PLACEHOLDERS;
  const visibleProgress = isVisibleProgress(progress) ? progress : null;
  const progressTone =
    visibleProgress?.status === "failed" ? "failed" : "running";
  const percent = clampPercent(visibleProgress?.percent ?? 0);

  return (
    <div
      className={`setup-strip ${setupStatus?.ready ? "ready" : "attention"} ${visibleProgress ? "with-progress" : ""}`}
      aria-label="Состав ProxiFyre"
    >
      <span className="setup-strip-title">Состав</span>
      <div className="setup-strip-items">
        {stripItems.map((item) => (
          <div
            className={`setup-strip-item ${setupItemClass(item, visibleProgress)}`}
            key={item.id}
          >
            <span className="setup-strip-dot" aria-hidden="true" />
            <strong>{setupItemUserName(item.id, item.name)}</strong>
            <span>{setupItemShortStatus(item, visibleProgress)}</span>
          </div>
        ))}
      </div>
      {visibleProgress ? (
        <div className={`setup-progress setup-progress--${progressTone}`}>
          <div
            className="setup-progress-track"
            role="progressbar"
            aria-valuemin={0}
            aria-valuemax={100}
            aria-valuenow={percent}
            aria-label={visibleProgress.message}
          >
            <span
              className="setup-progress-fill"
              style={{ width: `${percent}%` }}
            />
          </div>
          <span className="setup-progress-message">
            {visibleProgress.message}
          </span>
        </div>
      ) : null}
    </div>
  );
}

function setupItemClass(
  item: ProxiFyreSetupStatus["items"][number],
  progress: ProxiFyreSetupProgress | null,
) {
  if (progress?.activeStep === item.id) {
    if (progress.status === "failed") return "failed";
    return "active";
  }
  if (item.installed) return "installed";
  return "missing";
}

function setupItemUserName(id: string, fallbackName: string) {
  if (id === "vc-runtime") return "Среда запуска";
  if (id === "packet-filter") return "Сетевой драйвер";
  if (id === "proxifyre") return "Клиент ProxiFyre";
  return fallbackName;
}

function setupItemShortStatus(
  item: ProxiFyreSetupStatus["items"][number],
  progress: ProxiFyreSetupProgress | null,
) {
  if (progress?.activeStep === item.id) {
    if (progress.status === "failed") return "ошибка";
    if (progress.status === "succeeded")
      return progress.operation === "uninstall" ? "удалено" : "готово";
    return "в процессе";
  }
  if (item.details === "Проверяю") return "проверяю";
  if (!item.installed)
    return progress?.operation === "uninstall" &&
      progress.status === "succeeded"
      ? "удалено"
      : "нужно установить";
  if (item.id === "proxifyre")
    return proxifyreSetupServiceSummary(item.version);
  return "готово";
}

function proxifyreSetupServiceSummary(version: string | undefined) {
  const normalized = version?.trim().toLowerCase() ?? "";
  if (normalized.includes("не установлена")) return "служба не установлена";
  if (normalized.includes("остановлена") || normalized.includes("не запущена"))
    return "служба остановлена";
  if (normalized.includes("запущена")) return "служба запущена";
  return "готово";
}

function isVisibleProgress(
  progress: ProxiFyreSetupProgress | null,
): progress is ProxiFyreSetupProgress {
  if (!progress || progress.status === "idle") return false;
  return progress.status === "running" || progress.status === "failed";
}

function clampPercent(value: number) {
  if (!Number.isFinite(value)) return 0;
  return Math.max(0, Math.min(100, Math.round(value)));
}