import { ConfigPoller } from "./config-poller";
export interface ICerebroConfigEntry {
    setting: string;
    value: any;
    except?: ICerebroConfigEntryException[];
}
export type ICerebroConfigEntryException = {
    value: any;
    [key: string]: any;
};
export interface ICerebroOptions {
    customEvaluators?: Record<string, Function>;
    poller?: ConfigPoller;
}
export interface ICerebroContext {
    percentageSeed?: string | number;
    [key: string]: any;
}
export interface ICerebroConfigOptions {
    overrides?: Record<string, any>;
}
export interface ICerebroConfigParams<Flags extends Record<string, any> = Record<string, any>> {
    /**
     * Map of setting name : array of labels
     */
    labels: Record<string, Array<string>>;
    /**
     * Map of label : setting value
     */
    labelResolved: Record<string, any>;
    /**
     * The resolved configuration object
     */
    answers: Flags;
}
export interface ICerebroConfig<Flags extends Record<string, any> = Record<string, any>> {
    /**
     * Gets the requested value in its raw form. No checks are performed on it.
     *
     * @param {String} name The name of the setting that you want to value of
     * @return {*} The value of the setting
     */
    getRawValue<K extends keyof Flags>(name: K): Flags[K];
    /**
     * Gets the requested value if it is a Boolean.  Returns null if the value does not exist.
     * Throws an error if the requested value is not a Boolean.
     *
     * @param {String} name The name of the setting that you want to value of
     * @return {Boolean|null} The value of the setting
     */
    isEnabled<K extends keyof Flags>(name: K): boolean | null;
    /**
     * Gets the requested value if it is not a Boolean.  Returns null if the value does not exist.
     * Throws an error if the requested value is a Boolean.
     *
     * @param {String} name The name of the setting that you want to value of
     * @return {!Boolean|*} The value of the setting
     */
    getValue<K extends keyof Flags>(name: K): Flags[K] | null;
    /**
     * Gets the requested value if it is not a Boolean.
     * Throws an error if the requested value is a Boolean or is null.
     *
     * @param {String} name The name of the setting that you want to value of
     * @return {!Boolean|*} The value of the setting
     */
    getAssertValue<K extends keyof Flags>(name: K): Flags[K];
    /**
     * Serializes the object to send to the client.
     * Intended to be used on the server.
     * The output of this function must be rehydrated on the client.
     *
     * @return {JSON} Map of settings to values.
     */
    dehydrate(): string;
    /**
     * Returns the resolved configuration as an object.
     * NOTE: This does not deep clone the object, which means that clients could abuse this
     * by changing values.  Doing a deep clone will obviously impact performance.
     *
     * @return {Object} The resolved config.
     */
    getRawConfig(): Flags;
    /**
     * Returns an object in the form of `{ <setting_name>: <array of labels> }`.
     *
     * For settings without labels, an empty array is assigned instead.
     */
    getLabels(): Record<string, Array<string>>;
    /**
     * Gets configuration categorized under a specific label.
     *
     * Returns null if the label does not exist.
     */
    getConfigForLabel(label: string): Record<string, any>;
    /**
     * Gets a value from configuration categorized under a specific label.
     *
     * Returns null if the label or key does not exist.
     */
    getConfigValueForLabel(label: string, key: string): any;
}
export type DynamicConfigBuilder<Flags extends Record<string, any> = Record<string, any>> = (context: Record<string, any>, overrides?: Record<string, any>) => ICerebroConfig<Flags>;