/*
 * Copyright (c) 2022 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { AsyncCallback } from './basic';
import * as _ApplicationStateObserver from './application/ApplicationStateObserver';
import * as _AbilityStateData from './application/AbilityStateData';
import * as _AppStateData from './application/AppStateData';
import { ProcessInformation as _ProcessInformation } from './application/ProcessInformation';

/**
 * This module provides the function of app manager service.
 * @namespace appManager
 * @syscap SystemCapability.Ability.AbilityRuntime.Core
 * @since 9
 *
 */
declare namespace appManager {
    /**
     * Enum for the application state
     * @enum { number }
     * @syscap SystemCapability.Ability.AbilityRuntime.Core
     * @systemapi
     * @since 9
     */
    export enum ApplicationState {
        STATE_CREATE,
        STATE_FOREGROUND,
        STATE_ACTIVE,
        STATE_BACKGROUND,
        STATE_DESTROY
    }

    /**
     * Enum for the process state
     * @enum { number }
     * @syscap SystemCapability.Ability.AbilityRuntime.Core
     * @systemapi
     * @since 9
     */
    export enum ProcessState {
        STATE_CREATE,
        STATE_FOREGROUND,
        STATE_ACTIVE,
        STATE_BACKGROUND,
        STATE_DESTROY
    }

    /**
     * Register application state observer.
     * @permission ohos.permission.RUNNING_STATE_OBSERVER
     * @param { string } type - applicationState.
     * @param { ApplicationStateObserver } observer - The application state observer.
     * @returns { number } Returns the number code of the observer.
     * @throws { BusinessError } 401 - If the input parameter is not valid parameter.
     * @syscap SystemCapability.Ability.AbilityRuntime.Core
     * @systemapi
     * @since 9
     */
    function on(type: "applicationState", observer: ApplicationStateObserver): number;

    /**
     * Register application state observer.
     * @permission ohos.permission.RUNNING_STATE_OBSERVER
     * @param { string } type - applicationState.
     * @param { ApplicationStateObserver } observer - The application state observer.
     * @param { Array<string> } bundleNameList - The list of bundleName. The max length is 128.
     * @returns { number } Returns the number code of the observer.
     * @throws { BusinessError } 401 - If the input parameter is not valid parameter.
     * @syscap SystemCapability.Ability.AbilityRuntime.Core
     * @systemapi
     * @since 9
     */
    function on(type: "applicationState", observer: ApplicationStateObserver, bundleNameList: Array<string>): number;

    /**
     * Unregister application state observer.
     * @permission ohos.permission.RUNNING_STATE_OBSERVER
     * @param { string } type - applicationState.
     * @param { number } observerId - Indicates the number code of the observer.
     * @param { AsyncCallback<void> } callback - The callback of off.
     * @throws { BusinessError } 401 - If the input parameter is not valid parameter.
     * @syscap SystemCapability.Ability.AbilityRuntime.Core
     * @systemapi
     * @since 9
     */
    function off(type: "applicationState", observerId: number, callback: AsyncCallback<void>): void;

    /**
     * Unregister application state observer.
     * @permission ohos.permission.RUNNING_STATE_OBSERVER
     * @param { string } type - applicationState.
     * @param { number } observerId - Indicates the number code of the observer.
     * @returns { Promise<void> } The promise returned by the function.
     * @throws { BusinessError } 401 - If the input parameter is not valid parameter.
     * @syscap SystemCapability.Ability.AbilityRuntime.Core
     * @systemapi
     * @since 9
     */
    function off(type: "applicationState", observerId: number): Promise<void>;

    /**
     * getForegroundApplications.
     * @permission ohos.permission.GET_RUNNING_INFO
     * @param { AsyncCallback<Array<AppStateData>> } callback - The callback is used to return the list of AppStateData.
     * @throws { BusinessError } 401 - If the input parameter is not valid parameter.
     * @syscap SystemCapability.Ability.AbilityRuntime.Core
     * @systemapi
     * @since 9
     */
    function getForegroundApplications(callback: AsyncCallback<Array<AppStateData>>): void;

    /**
     * getForegroundApplications.
     * @permission ohos.permission.GET_RUNNING_INFO
     * @returns { Promise<Array<AppStateData>> } Returns the list of AppStateData.
     * @throws { BusinessError } 401 - If the input parameter is not valid parameter.
     * @syscap SystemCapability.Ability.AbilityRuntime.Core
     * @systemapi
     * @since 9
     */
    function getForegroundApplications(): Promise<Array<AppStateData>>;

    /**
     * Kill process with account.
     * @permission ohos.permission.INTERACT_ACROSS_LOCAL_ACCOUNTS and ohos.permission.CLEAN_BACKGROUND_PROCESSES
     * @param { string } bundleName - The process bundle name.
     * @param { number } accountId - The account id.
     * @returns { Promise<void> } The promise returned by the function.
     * @throws { BusinessError } 401 - If the input parameter is not valid parameter.
     * @syscap SystemCapability.Ability.AbilityRuntime.Core
     * @systemapi
     * @since 9
     */
    function killProcessWithAccount(bundleName: string, accountId: number): Promise<void>;

    /**
     * Kill process with account.
     * @permission ohos.permission.INTERACT_ACROSS_LOCAL_ACCOUNTS and ohos.permission.CLEAN_BACKGROUND_PROCESSES
     * @param { string } bundleName - The process bundle name.
     * @param { number } accountId - The account id.
     * @param { AsyncCallback<void> } callback - The callback of killProcessWithAccount.
     * @throws { BusinessError } 401 - If the input parameter is not valid parameter.
     * @syscap SystemCapability.Ability.AbilityRuntime.Core
     * @systemapi
     * @since 9
     */
    function killProcessWithAccount(bundleName: string, accountId: number, callback: AsyncCallback<void>): void;

    /**
     * Is user running in stability test.
     * @param { AsyncCallback<boolean> } callback - The callback is used to return true if user is running stability test.
     * @throws { BusinessError } 401 - If the input parameter is not valid parameter.
     * @syscap SystemCapability.Ability.AbilityRuntime.Core
     * @since 9
     */
    function isRunningInStabilityTest(callback: AsyncCallback<boolean>): void;

    /**
     * Is user running in stability test.
     * @returns { Promise<boolean> } Returns true if user is running stability test.
     * @throws { BusinessError } 401 - If the input parameter is not valid parameter.
     * @syscap SystemCapability.Ability.AbilityRuntime.Core
     * @since 9
     */
    function isRunningInStabilityTest(): Promise<boolean>;

    /**
     * Kill processes by bundle name
     * @permission ohos.permission.CLEAN_BACKGROUND_PROCESSES
     * @param { string } bundleName - bundle name.
     * @returns { Promise<void> } The promise returned by the function.
     * @throws { BusinessError } 401 - If the input parameter is not valid parameter.
     * @syscap SystemCapability.Ability.AbilityRuntime.Core
     * @systemapi
     * @since 9
     */
    function killProcessesByBundleName(bundleName: string): Promise<void>;

    /**
     * Kill processes by bundle name
     * @permission ohos.permission.CLEAN_BACKGROUND_PROCESSES
     * @param { string } bundleName - bundle name.
     * @param { AsyncCallback<void> } callback - The callback of killProcessesByBundleName.
     * @throws { BusinessError } 401 - If the input parameter is not valid parameter.
     * @syscap SystemCapability.Ability.AbilityRuntime.Core
     * @systemapi
     * @since 9
     */
    function killProcessesByBundleName(bundleName: string, callback: AsyncCallback<void>);

    /**
     * Clear up application data by bundle name
     * @permission ohos.permission.CLEAN_APPLICATION_DATA
     * @param { string } bundleName - bundle name.
     * @returns { Promise<void> } The promise returned by the function.
     * @throws { BusinessError } 401 - If the input parameter is not valid parameter.
     * @syscap SystemCapability.Ability.AbilityRuntime.Core
     * @systemapi
     * @since 9
     */
    function clearUpApplicationData(bundleName: string): Promise<void>;

    /**
     * Clear up application data by bundle name
     * @permission ohos.permission.CLEAN_APPLICATION_DATA
     * @param { string } bundleName - bundle name.
     * @param { AsyncCallback<void> } callback - The callback of clearUpApplicationData.
     * @throws { BusinessError } 401 - If the input parameter is not valid parameter.
     * @syscap SystemCapability.Ability.AbilityRuntime.Core
     * @systemapi
     * @since 9
     */
    function clearUpApplicationData(bundleName: string, callback: AsyncCallback<void>);

    /**
     * Is it a ram-constrained device
     * @returns { Promise<boolean> } Returns true if the device is ram-constrained.
     * @throws { BusinessError } 401 - If the input parameter is not valid parameter.
     * @syscap SystemCapability.Ability.AbilityRuntime.Core
     * @since 9
     */
    function isRamConstrainedDevice(): Promise<boolean>;

    /**
     * Is it a ram-constrained device
     * @param { AsyncCallback<boolean> } callback - The callback is used to return true if the device is ram-constrained.
     * @throws { BusinessError } 401 - If the input parameter is not valid parameter.
     * @syscap SystemCapability.Ability.AbilityRuntime.Core
     * @since 9
     */
    function isRamConstrainedDevice(callback: AsyncCallback<boolean>): void;

    /**
     * Get the memory size of the application
     * @returns { Promise<number> } Returns the application memory size.
     * @throws { BusinessError } 401 - If the input parameter is not valid parameter.
     * @syscap SystemCapability.Ability.AbilityRuntime.Core
     * @since 9
     */
    function getAppMemorySize(): Promise<number>;

    /**
     * Get the memory size of the application
     * @param { AsyncCallback<number> } callback - The callback is used to return the application memory size.
     * @throws { BusinessError } 401 - If the input parameter is not valid parameter.
     * @syscap SystemCapability.Ability.AbilityRuntime.Core
     * @since 9
     */
    function getAppMemorySize(callback: AsyncCallback<number>): void;

    /**
     * Get information about running processes
     * @permission ohos.permission.GET_RUNNING_INFO
     * @returns { Promise<Array<ProcessInformation>> } Returns the array of {@link ProcessInformation}.
     * @throws { BusinessError } 401 - If the input parameter is not valid parameter.
     * @syscap SystemCapability.Ability.AbilityRuntime.Core
     * @since 9
     */
    function getRunningProcessInformation(): Promise<Array<ProcessInformation>>;

    /**
     * Get information about running processes
     * @permission ohos.permission.GET_RUNNING_INFO
     * @param { AsyncCallback<Array<ProcessInformation>> } callback - The callback is used to return the array of {@link ProcessInformation}.
     * @throws { BusinessError } 401 - If the input parameter is not valid parameter.
     * @syscap SystemCapability.Ability.AbilityRuntime.Core
     * @since 9
     */
    function getRunningProcessInformation(callback: AsyncCallback<Array<ProcessInformation>>): void;

    /**
     * The ability or extension state data.
     * @syscap SystemCapability.Ability.AbilityRuntime.Core
     * @systemapi
     * @since 9
     */
    export type AbilityStateData = _AbilityStateData.default

    /**
     * The application state data.
     * @syscap SystemCapability.Ability.AbilityRuntime.Core
     * @systemapi
     * @since 9
     */
    export type AppStateData = _AppStateData.default

    /**
     * The application state observer.
     * @syscap SystemCapability.Ability.AbilityRuntime.Core
     * @systemapi
     * @since 9
     */
    export type ApplicationStateObserver = _ApplicationStateObserver.default

    /**
     * The class of a process information.
     * @syscap SystemCapability.Ability.AbilityRuntime.Core
     * @since 9
     */
    export type ProcessInformation = _ProcessInformation
}

export default appManager;