import { IMessageBusTopicSubscription, SettingUpdatedMsg } from "../models";
export interface ISuggestedKeyRendererHandler {
    /**
     * Return an array of the registered html element name that has been suggested to be able to render this key
     * */
    getSuggestedKeyRenderer: (key: string) => Promise<string>;
}
export interface ISettingsKeyProvider extends ISettingsStorage<any> {
    protectKeyWithSecurityRole: (securityRoleId: string) => void;
}
export interface ISettingsKeyProviderWithSuggestedRendererSupport extends ISettingsKeyProvider, ISuggestedKeyRendererHandler, ISettingsStorageWithRendererSuggestion<any> {
}
export interface ISettingsService<T> extends ISuggestedKeyRendererHandler {
    registerKeyProvider: (key: string, keyProvider: ISettingsKeyProvider) => void;
}
export interface ISettingsStorage<T> {
    /**
    *   Get the key value
    *
    *   @param key the for which to get value.
    *   @returns A promise containing the value
    */
    getValue: (key: string) => Promise<T>;
    /**
    *   Checks if the current user has access to write the value for a specific key
    *
    *   @param key for which to check access.
    *   @returns A promise containing the boolean result of the access check
    */
    canSetValue: (key: string) => Promise<boolean>;
    /**
    *   Sets a value for the given key
    *   (Only succeed if current user has access to set key value, see CanSetValue)
    *
    *   @param key for which to add the settings value.
    *   @param value the value to persist for the key.
    *   @returns A promise containing the value which has been persisted
    */
    setValue: (key: string, value: T) => Promise<T>;
}
export interface ISettingsStorageWithRendererSuggestion<T> extends ISettingsStorage<T> {
    /**
     * Registers a html element name i.e.web component that you what to handle the editing of settings)
     * (Only suggest element that you know kan handle the settings key's value model)
     * */
    suggestKeyRenderer: (key: string, elementName: string) => void;
}
export interface SettingsServiceConstructor {
    securityRoleId: string;
}
export declare class SettingsService<T> implements ISettingsStorage<T>, ISettingsService<T> {
    private securityRoleId;
    private static SuggestedKeyRenderers;
    private static KeyProviders;
    /**
    * Event dispatcher when a settings key has been updated
    */
    private static KeyValueUpdatedPublishSubscribers;
    private static LoadedValues;
    private static SettingUpdatedPublishSubscriber;
    private httpClient;
    private permissionService;
    private settingsLoader;
    constructor(securityRoleId: string);
    onKeyValueUpdated: (key: string) => IMessageBusTopicSubscription<T>;
    onSettingUpdated: () => IMessageBusTopicSubscription<SettingUpdatedMsg>;
    registerKeyProvider: (key: string, keyProvider: ISettingsKeyProvider) => void;
    canSetValue(key: string): Promise<boolean>;
    setValue(key: string, value: T): Promise<T>;
    getValue(key: string): Promise<T>;
    suggestKeyRenderer: (key: string, elementName: string) => void;
    getSuggestedKeyRenderer: (key: string) => Promise<string>;
    private getKeyProvider;
    private settingUpdated;
    private getKeyValuePublishSubscriber;
    reloadSettingsHash(): void;
}