import { V2NIMError, V2NIMConversation, V2NIMConversationFilter, V2NIMConversationOperationResult, V2NIMConversationUpdate, V2NIMConversationResult, V2NIMConversationOption } from '../v2_def/v2_nim_struct_def';
import { EventEmitter } from 'eventemitter3';
import { V2NIMConversationType } from '../v2_def/v2_nim_enum_def';
export declare interface V2NIMConversationListener {
    /** 会话同步开始通知 */
    syncStarted: [];
    /** 会话同步完成通知 */
    syncFinished: [];
    /** 会话同步错误通知 */
    syncFailed: [V2NIMError];
    /** 会话创建通知 */
    conversationCreated: [V2NIMConversation];
    /** 会话删除通知 */
    conversationDeleted: [Array<string>];
    /** 会话更新通知 */
    conversationChanged: [Array<V2NIMConversation>];
    /** 会话总未读数变更通知 */
    totalUnreadCountChanged: [number];
    /** 根据过滤条件订阅的会话未读数变更通知 */
    unreadCountChangedByFilter: [V2NIMConversationFilter, number];
    /** 同账号多端标记会话 ACK 通知时间戳变更 */
    conversationReadTimeUpdated: [string, number];
}
export declare class V2NIMConversationService extends EventEmitter<V2NIMConversationListener> {
    instance: any;
    constructor();
    /**
     * @brief 创建空会话
     * @param conversationId 会话 ID
     * @returns V2NIMConversation
     * @example
     * ```javascript
     * const conversation = await v2.conversationService.createConversation('conversation1')
     * ```
     */
    createConversation(conversationId: string): Promise<V2NIMConversation>;
    /**
     * @brief 删除会话
     * @param conversationId 会话 ID
     * @param clearMessage 是否清除会话消息
     * @returns void
     * @example
     * ```javascript
     * await v2.conversationService.deleteConversation('conversation1', true)
     * ```
     */
    deleteConversation(conversationId: string, clearMessage: boolean): Promise<void>;
    /**
     * @brief 批量删除会话
     * @param conversationIds 会话ID列表
     * @param clearMessage 是否清除会话消息
     * @returns Array<V2NIMConversationOperationResult>
     * @example
     * ```javascript
     * const result = await v2.conversationService.deleteConversationListByIds(['conversation1', 'conversation2'], true)
     * ```
     */
    deleteConversationListByIds(conversationIds: string[], clearMessage: boolean): Promise<Array<V2NIMConversationOperationResult>>;
    /**
     * @brief 置顶会话
     * @param conversationId 会话 ID
     * @param stickTop 是否置顶
     * @returns void
     * @example
     * ```javascript
     * await v2.conversationService.stickTopConversation('conversation1', true)
     * ```
     */
    stickTopConversation(conversationId: string, stickTop: boolean): Promise<void>;
    /**
     * @brief 更新会话
     * @param conversationId 会话 ID
     * @param updateInfo 更新参数
     * @returns void
     * @example
     * ```javascript
     * await v2.conversationService.updateConversation('conversation1', { name: 'newName' })
     * ```
     */
    updateConversation(conversationId: string, updateInfo: V2NIMConversationUpdate): Promise<void>;
    /**
     * @brief 更新会话本地扩展
     * @param conversationId 会话 ID
     * @param localExtension 本地扩展
     * @returns void
     * @example
     * ```javascript
     * await v2.conversationService.updateConversationLocalExtension('conversation1', 'newExtension')
     * ```
     */
    updateConversationLocalExtension(conversationId: string, localExtension: string): Promise<void>;
    /** @brief 获取会话
     * @param conversationId 会话 ID
     * @returns V2NIMConversation
     * @example
     * ```javascript
     * const conversation = await v2.conversationService.getConversation('conversation1')
     * ```
     */
    getConversation(conversationId: string): Promise<V2NIMConversation>;
    /**
     * @brief 分页获取会话列表
     * @param offset 分页偏移, 首页传 0, 后续拉取采用上一次返还的 offset
     * @param limit 分页数量
     * @returns V2NIMConversationResult
     * @example
     * ```javascript
     * const result = await v2.conversationService.getConversationList(0, 10)
     * ```
     */
    getConversationList(offset: number, limit: number): Promise<V2NIMConversationResult>;
    /**
     * @brief 根据会话ID获取会话列表
     * @param conversationIds 会话ID列表
     * @returns Array<V2NIMConversation>
     * @example
     * ```javascript
     * const list = await v2.conversationService.getConversationListByIds(['conversation1', 'conversation2'])
     * ```
     */
    getConversationListByIds(conversationIds: string[]): Promise<Array<V2NIMConversation>>;
    /**
     * @brief 根据条件筛选分页获取会话列表
     * @param offset 分页偏移, 首页传 0, 后续拉取采用上一次返还的 offset
     * @param limit 分页数量
     * @param option 查询参数
     * @returns V2NIMConversationResult
     * @example
     * ```javascript
     * const result = await v2.conversationService.getConversationListByOption(0, 10, {
     *   conversationTypes: [1, 2]
     * })
     * ```
     */
    getConversationListByOption(offset: number, limit: number, option: V2NIMConversationOption): Promise<V2NIMConversationResult>;
    /**
     * @brief 获取会话未读总数
     * @returns number
     * @example
     * ```javascript
     * const count = await v2.conversationService.getTotalUnreadCount()
     * ```
     */
    getTotalUnreadCount(): number;
    /** @brief 根据会话 ID 列表获取未读总数
     * @param conversationIds 会话 ID 列表
     * @returns number
     * @example
     * ```javascript
     * const count = await v2.conversationService.getUnreadCountByIds(['conversation1', 'conversation2'])
     * ```
     */
    getUnreadCountByIds(conversationIds: string[]): Promise<number>;
    /**
     * @brief 根据过滤条件获取会话未读总数
     * @param filter 过滤条件
     * @returns number
     * @example
     * ```javascript
     * const count = await v2.conversationService.getUnreadCountByFilter({ conversationTypes: [1, 2] })
     * ```
     */
    getUnreadCountByFilter(filter: V2NIMConversationFilter): Promise<number>;
    /**
     * @brief 清除会话总未读数
     * @returns void
     * @example
     * ```javascript
     * await v2.conversationService.clearTotalUnreadCount()
     * ```
     */
    clearTotalUnreadCount(): Promise<void>;
    /**
     * @brief 根据会话 ID 列表清除会话未读数
     * @param conversationIds 会话 ID 列表
     * @returns Array<V2NIMConversationOperationResult>
     * @example
     * ```javascript
     * const result = await v2.conversationService.clearUnreadCountByIds(['conversation1', 'conversation2'])
     * ```
     */
    clearUnreadCountByIds(conversationIds: string[]): Promise<Array<V2NIMConversationOperationResult>>;
    /**
     * @brief 根据会话类型清除会话未读数
     * @param conversationTypes 会话类型列表
     * @returns void
     * @example
     * ```javascript
     * await v2.conversationService.clearUnreadCountByTypes([1, 2])
     * ```
     */
    clearUnreadCountByTypes(conversationTypes: V2NIMConversationType[]): Promise<void>;
    /**
     * @brief 根据会话分组清除会话未读数
     * @param groupId 会话分组ID
     * @returns void
     * @example
     * ```javascript
     * await v2.conversationService.clearUnreadCountByGroupId('groupId')
     * ```
     */
    clearUnreadCountByGroupId(groupId: string): Promise<void>;
    /**
     * @brief 标记会话已读时间戳
     * @param conversationId 要标记的会话 ID
     * @returns number
     * @example
     * ```javascript
     * const time = await v2.conversationService.markConversationRead('conversation1')
     * ```
     */
    markConversationRead(conversationId: string): Promise<number>;
    /**
     * @brief 获取会话已读时间戳
     * @param conversationId 会话 ID
     * @returns Promise<number> 时间戳
     * @example
     * ```javascript
     * const time = await v2.conversationService.getConversationReadTime('conversation1')
     * ```
     */
    getConversationReadTime(conversationId: string): Promise<number>;
    /**
     * @brief 订阅指定过滤条件的会话未读数
     * @param filter 过滤条件
     * @returns null | V2NIMError
     * @example
     * ```javascript
     * await v2.conversationService.subscribeUnreadCountByFilter({ conversationTypes: [1, 2] })
     * ```
     */
    subscribeUnreadCountByFilter(filter: V2NIMConversationFilter): null | V2NIMError;
    /**
     * @brief 取消订阅指定过滤条件的会话未读数
     * @param filter 过滤条件
     * @returns null | V2NIMError
     * @example
     * ```javascript
     * await v2.conversationService.unsubscribeUnreadCountByFilter({ conversationTypes: [1, 2] })
     * ```
     */
    unsubscribeUnreadCountByFilter(filter: V2NIMConversationFilter): null | V2NIMError;
    /**
     * @brief 获取云端置顶会话列表
     * @since v10.9.0
     * @returns Promise<Array<V2NIMConversation>> 置顶会话列表
     * @example
     * ```javascript
     * const list = await v2.conversationService.getStickTopConversationList()
     * ```
     */
    getStickTopConversationList(): Promise<Array<V2NIMConversation>>;
}