import type { LanguageResources } from "@vertigis/arcgis-extensions/LanguageResources";
import type { FormatSettings } from "@vertigis/arcgis-extensions/support/FormatSettings";
import type { MeasurementSystem, RegionModelProperties } from "@vertigis/viewer-spec/app-config/common/RegionModelProperties";
import type { TranslatableText } from "@vertigis/viewer-spec/app-config/common/TranslatableText";
import type { LanguageManifest } from "../config";
import type { ConfigurableService } from "../services";
/**
 * Handles region concerns for the application.
 */
export interface RegionService extends ConfigurableService<RegionModelProperties> {
    /**
     * The current locale used by the application, e.g. "en", "de-AT". Defaults
     * to the value of `detectedLocale`. Use `setLocale()` to change the current
     * locale.
     */
    readonly locale: string;
    /**
     * Determines whether the current locale uses a right-to-left script
     * (`true`), or else left-to-right (`false`).
     */
    readonly isRtl: boolean;
    /**
     * The default measurement system based on the current local.
     */
    readonly defaultMeasurementSystem: MeasurementSystem;
    /**
     * The detected locale configured by the browser.
     */
    detectedLocale: string;
    /**
     * The measurement system used to determine distance units.
     */
    measurementSystem: MeasurementSystem;
    /**
     * Whether or not to automatically detect the measurement system based on
     * the current locale. Setting `measurementSystem` directly will set this to
     * `false`.
     */
    useAutoMeasurementSystem: boolean;
    /**
     * The fallback locale to use when language resources or formatting rules
     * are not available for the current locale. Defaults to "inv" (invariant).
     */
    fallbackLocale: string;
    /**
     * Default format settings for the application.
     */
    readonly formatSettings: FormatSettings;
    /**
     * Adds language resources that will be used for translation.
     *
     * @param resources The language resources to register.
     */
    addLanguageResources(resources: LanguageManifest | LanguageResources): void;
    /**
     * Loads the resources for the specified locale so that they are available
     * for use. The current locale will not be changed.
     *
     * @param localeCode The locale code, e.g. "en", "fr-CA", etc.
     */
    loadLocale(localeCode: string): Promise<void>;
    /**
     * Sets the locale for the application and loads any locale-specific
     * resources.
     *
     * @param localeCode The locale code, e.g. "en", "fr-CA", etc.
     */
    setLocale(localeCode: string): Promise<void>;
    /**
     * Translates a string using the current locale, if possible.
     *
     * @param options Options for translation. If the text is a language
     *   resource key, then a localized version of that resource will be used if
     *   one exists, otherwise the original text is returned.
     * @param args The values to substitute into the format string if it
     *   contains substitution placeholders (see utilities/string/format in
     *   Vertigis Arc-X).
     */
    translate(options: TranslatableText, ...args: unknown[]): string;
}