/**
 * Runtime UI locale for the SSH TUI.
 *
 * Order: `DSH_TUI_LANG` → settings `ssh-tui.language` (`/language`) →
 * `LC_ALL` / `LC_MESSAGES` / `LANG`. Unrecognized and C/POSIX stay Chinese:
 * jump-host SSH is the default audience, and CI often runs with `LANG=C`.
 */
import z from '@deepseek-ai/schemastery';
import type { Context } from '@deepseek-ai/cordis';
export type Locale = 'zh' | 'en';
export type MessageVars = Record<string, string | number>;
export declare const UI_LOCALE_NAMESPACE: import("@deepseek-ai/dsh-settings").SettingsNamespace;
/**
 * Fields `/language`, `/view`, `/disconnect` and `/autoapproval` persist.
 *
 * Every field is live: on 0.1.7 the section *is* this form, and only volatile
 * paths may be written (see {@link liveField}).
 */
export declare const UI_LOCALE_SCHEMA: z<Schemastery.ObjectS<NoInfer<{
    language: z<string>;
    skipUpdate: z<string>;
    view: z<string>;
    disconnect: z<string>;
    autoApproval: z<string>;
    /** Milliseconds a leftover, finished Host waits before exiting; 0 = never. */
    idleExit: z<number>;
    /**
     * Command run once when a question starts waiting and nobody is attached.
     * Empty means off. See `question-wait.ts` for the environment it receives.
     */
    notify: z<string>;
}>>, Schemastery.ObjectT<NoInfer<{
    language: z<string>;
    skipUpdate: z<string>;
    view: z<string>;
    disconnect: z<string>;
    autoApproval: z<string>;
    /** Milliseconds a leftover, finished Host waits before exiting; 0 = never. */
    idleExit: z<number>;
    /**
     * Command run once when a question starts waiting and nobody is attached.
     * Empty means off. See `question-wait.ts` for the environment it receives.
     */
    notify: z<string>;
}>>, "plain">;
export declare function localeFromTag(tag: string): Locale | undefined;
/** Pick zh/en from env, optionally after a saved settings value. */
export declare function resolveLocale(env?: NodeJS.ProcessEnv, saved?: string): Locale;
export declare function getLocale(): Locale;
export declare function setLocale(locale: Locale): void;
export declare function t(key: string, vars?: MessageVars, fallback?: string): string;
export declare function refreshLocale(env?: NodeJS.ProcessEnv, saved?: string): Locale;
export declare function applySavedLocale(raw: unknown): Locale;
/** Register `$DSH_HOME/settings.yaml` `ssh-tui.language` and apply it now. */
export declare function installUiLocale(ctx: Context): void;
export declare function localeDisplayName(locale: Locale): string;