import { AsyncOptionalCreatable } from '@salesforce/kit';
import { AnyJson, JsonMap, Optional } from '@salesforce/ts-types';
import { Config } from './config';
/**
 * Information about a config property.
 */
export interface ConfigInfo {
    /**
     * key The config key.
     */
    key: string;
    /**
     * The location of the config property.
     */
    location?: ConfigAggregator.Location;
    /**
     * The config value.
     */
    value?: AnyJson;
    /**
     * The path of the config value.
     */
    path?: string;
    /**
     * `true` if the config property is in the local project.
     */
    isLocal: () => boolean;
    /**
     * `true` if the config property is in the global space.
     */
    isGlobal: () => boolean;
    /**
     * `true` if the config property is an environment variable.
     */
    isEnvVar: () => boolean;
}
/**
 * Aggregate global and local project config files, as well as environment variables for
 * `sfdx-config.json`. The resolution happens in the following bottom-up order:
 *
 * 1. Environment variables  (`SFDX_LOG_LEVEL`)
 * 1. Workspace settings  (`<workspace-root>/.sfdx/sfdx-config.json`)
 * 1. Global settings  (`$HOME/.sfdx/sfdx-config.json`)
 *
 * Use {@link ConfigAggregator.create} to instantiate the aggregator.
 *
 * ```
 * const aggregator = await ConfigAggregator.create();
 * console.log(aggregator.getPropertyValue('defaultusername'));
 * ```
 */
export declare class ConfigAggregator extends AsyncOptionalCreatable<JsonMap> {
    private static instance;
    private static encrypted;
    private allowedProperties;
    private localConfig?;
    private globalConfig;
    private envVars;
    private get config();
    /**
     * **Do not directly construct instances of this class -- use {@link ConfigAggregator.create} instead.**
     *
     * @ignore
     */
    constructor(options?: JsonMap);
    /**
     * Get the static ConfigAggregator instance. If one doesn't exist, one will be created with
     * the **encrypted** config values. Encrypted config values need to be resolved
     * asynchronously by calling {@link ConfigAggregator.reload}
     */
    static getInstance<P, T extends AsyncOptionalCreatable<P>>(this: new () => T): T;
    static create<P, T extends AsyncOptionalCreatable<P>>(this: new (options?: P) => T, options?: P): Promise<T>;
    /**
     * Get the info for a given key. If the ConfigAggregator was not asynchronously created OR
     * the {@link ConfigAggregator.reload} was not called, the config value may be encrypted.
     *
     * @param key The config key.
     */
    static getValue(key: string): ConfigInfo;
    /**
     * Initialize this instances async dependencies.
     */
    init(): Promise<void>;
    /**
     * Get a resolved config property.
     *
     * **Throws** *{@link SfdxError}{ name: 'UnknownConfigKey' }* An attempt to get a property that's not supported.
     *
     * @param key The key of the property.
     */
    getPropertyValue(key: string): Optional<AnyJson>;
    /**
     * Get a resolved config property.
     *
     * @param key The key of the property.
     */
    getInfo(key: string): ConfigInfo;
    /**
     * Gets a resolved config property location.
     *
     * For example, `getLocation('logLevel')` will return:
     * 1. `Location.GLOBAL` if resolved to an environment variable.
     * 1. `Location.LOCAL` if resolved to local project config.
     * 1. `Location.ENVIRONMENT` if resolved to the global config.
     *
     * @param key The key of the property.
     */
    getLocation(key: string): Optional<ConfigAggregator.Location>;
    /**
     * Get a resolved file path or environment variable name of the property.
     *
     * For example, `getPath('logLevel')` will return:
     * 1. `$SFDX_LOG_LEVEL` if resolved to an environment variable.
     * 1. `./.sfdx/sfdx-config.json` if resolved to the local config.
     * 1. `~/.sfdx/sfdx-config.json` if resolved to the global config.
     * 1. `undefined`, if not resolved.
     *
     * **Note:** that the path returned may be the absolute path instead of
     * relative paths such as `./` and `~/`.
     *
     * @param key The key of the property.
     */
    getPath(key: string): Optional<string>;
    /**
     * Get all resolved config property keys, values, locations, and paths.
     *
     * ```
     * > console.log(aggregator.getConfigInfo());
     * [
     *     { key: 'logLevel', val: 'INFO', location: 'Environment', path: '$SFDX_LOG_LEVEL'}
     *     { key: 'defaultusername', val: '<username>', location: 'Local', path: './.sfdx/sfdx-config.json'}
     * ]
     * ```
     */
    getConfigInfo(): ConfigInfo[];
    /**
     * Get the local project config instance.
     */
    getLocalConfig(): Config | undefined;
    /**
     * Get the global config instance.
     */
    getGlobalConfig(): Config;
    /**
     * Get the resolved config object from the local, global and environment config instances.
     */
    getConfig(): JsonMap;
    /**
     * Get the config properties that are environment variables.
     */
    getEnvVars(): Map<string, string>;
    /**
     * Re-read all property configurations from disk.
     */
    reload(): Promise<ConfigAggregator>;
    /**
     * Loads all the properties and aggregates them according to location.
     */
    private loadProperties;
    /**
     * Loads all the properties and aggregates them according to location.
     */
    private loadPropertiesSync;
    private resolveProperties;
    /**
     * Get the allowed properties.
     */
    private getAllowedProperties;
    /**
     * Set the allowed properties.
     *
     * @param properties The properties to set.
     */
    private setAllowedProperties;
    /**
     * Sets the env variables.
     *
     * @param envVars The env variables to set.
     */
    private setEnvVars;
}
export declare namespace ConfigAggregator {
    /**
     * An enum of all possible locations for a config value.
     */
    const enum Location {
        /**
         * Represents the global config.
         */
        GLOBAL = "Global",
        /**
         * Represents the local project config.
         */
        LOCAL = "Local",
        /**
         * Represents environment variables.
         */
        ENVIRONMENT = "Environment"
    }
}