import { AbortSignalLike } from '@azure/abort-controller';
import { AccessToken } from '@azure/core-auth';
import { AdditionalPolicyConfig } from '@azure/core-client';
import { AzureLogger } from '@azure/logger';
import { UserAgentPolicyOptions } from '@azure/core-rest-pipeline';

/**
 * Base class for chat event
 */
export declare interface BaseChatEvent {
    /**
     * Thread Id of the event.
     */
    threadId: string;
    /**
     * The Id of the event sender.
     */
    sender: CommunicationIdentifierKind;
    /**
     * The display name of the event sender.
     */
    senderDisplayName: string;
    /**
     * The Id of the event recipient.
     */
    recipient: CommunicationIdentifierKind;
}

/**
 * Event for chat message operations
 */
export declare interface BaseChatMessageEvent extends BaseChatEvent {
    /**
     * The Id of the message. This Id is server generated.
     */
    id: string;
    /**
     * The timestamp when the message arrived at the server. The timestamp is in RFC3339 format:
     * `yyyy-MM-ddTHH:mm:ssZ`.
     */
    createdOn: Date;
    /**
     * Version of the message. This version is an epoch time in a numeric unsigned Int64 format:
     * `1593117207131`
     */
    version: string;
    /**
     * Type of the chat message. Possible types are "Text" and "RichText/Html".
     */
    type: string;
}

/**
 * Event for chat thread operations
 */
export declare interface BaseChatThreadEvent {
    /**
     * Thread Id of the event.
     */
    threadId: string;
    /**
     * Version of the thread. This version is an epoch time in a numeric unsigned Int64 format:
     * `1593117207131`
     */
    version: string;
}

/** An attachment in a chat message. */
export declare interface ChatAttachment {
    /** Id of the attachment */
    id: string;
    /** The type of attachment. */
    attachmentType: ChatAttachmentType;
    /** The name of the attachment content. */
    name?: string;
    /** The URL where the attachment can be downloaded */
    url?: string;
    /** The URL where the preview of attachment can be downloaded */
    previewUrl?: string;
}

/** Defines values for AttachmentType. */
export declare type ChatAttachmentType = "image" | "file" | "unknown";

/**
 * Defines values for chat event.
 */
export declare type ChatEventId = "chatMessageReceived" | "chatMessageEdited" | "chatMessageDeleted" | "typingIndicatorReceived" | "readReceiptReceived" | "chatThreadCreated" | "chatThreadDeleted" | "chatThreadPropertiesUpdated" | "participantsAdded" | "participantsRemoved";

/**
 * Event for a deleted chat message.
 * All chat participants receive this event, including the original sender
 */
export declare interface ChatMessageDeletedEvent extends BaseChatMessageEvent {
    /**
     * The timestamp when the message was deleted. The timestamp is in RFC3339 format:
     * `yyyy-MM-ddTHH:mm:ssZ`.
     */
    deletedOn: Date;
}

/**
 * Event for a edited chat message.
 * All chat participants receive this event, including the original sender
 */
export declare interface ChatMessageEditedEvent extends ChatMessageReceivedEvent {
    /**
     * The timestamp when the message was edited. The timestamp is in RFC3339 format:
     * `yyyy-MM-ddTHH:mm:ssZ`.
     */
    editedOn: Date;
}

/**
 * Event for a received chat message.
 * All chat participants receive this event, including the original sender
 */
export declare interface ChatMessageReceivedEvent extends BaseChatMessageEvent {
    /**
     * Content of the message.
     */
    message: string;
    /**
     * Metadata of the message.
     */
    metadata: Record<string, string>;
    /**
     * Chat message attachments.
     */
    attachments?: ChatAttachment[];
}

/**
 * An Azure Communication chat participant.
 */
export declare interface ChatParticipant {
    /**
     * The id of the chat participant.
     */
    id: CommunicationIdentifierKind;
    /**
     * Display name for the chat participant.
     */
    displayName: string;
    /**
     * Time from which the chat history is shared with the chat participant.
     * The timestamp is in RFC3339 format: `yyyy-MM-ddTHH:mm:ssZ`.
     */
    shareHistoryTime?: Date;
    /**
     * Metadata of the participant.
     */
    metadata: Record<string, string>;
}

/** Data retention policy for auto deletion. */
export declare type ChatRetentionPolicy = ThreadCreationDateRetentionPolicy | NoneRetentionPolicy;

/**
 * Event for a created chat thread.
 * All chat participants receive this event, including the original sender
 */
export declare interface ChatThreadCreatedEvent extends BaseChatThreadEvent {
    /**
     * The timestamp when the thread was created. The timestamp is in RFC3339 format:
     * `yyyy-MM-ddTHH:mm:ssZ`.
     */
    createdOn: Date;
    /**
     * The properties of the thread.
     */
    properties: ChatThreadProperties;
    /**
     * The list of participants on the thread.
     */
    participants: ChatParticipant[];
    /**
     * Id of the user that created the chat thread.
     */
    createdBy: ChatParticipant;
    /**
     * Rentention policy
     */
    retentionPolicy: ChatRetentionPolicy;
}

/**
 * Event for an updated chat thread.
 * All chat participants receive this event, including the original sender
 */
export declare interface ChatThreadDeletedEvent extends BaseChatThreadEvent {
    /**
     * The timestamp when the thread was deleted. The timestamp is in RFC3339 format:
     * `yyyy-MM-ddTHH:mm:ssZ`.
     */
    deletedOn: Date;
    /**
     * Id of the user that deleted the chat thread.
     */
    deletedBy: ChatParticipant;
    /**
     * Reason of the event.
     */
    reason: string;
}

/**
 * Properties of an Azure Communication chat thread.
 */
export declare interface ChatThreadProperties {
    /**
     * Thread topic.
     */
    topic: string;
    /**
     * Metadata of the thread.
     */
    metadata: Record<string, string>;
}

/**
 * Event for an updated chat thread.
 * All chat participants receive this event, including the original sender
 */
export declare interface ChatThreadPropertiesUpdatedEvent extends BaseChatThreadEvent {
    /**
     * The properties of the thread.
     */
    properties: ChatThreadProperties;
    /**
     * The timestamp when the thread was updated. The timestamp is in RFC3339 format:
     * `yyyy-MM-ddTHH:mm:ssZ`.
     */
    updatedOn: Date;
    /**
     * Id of the user that updated the chat thread.
     */
    updatedBy: ChatParticipant;
    /**
     * Rentention policy
     */
    retentionPolicy: ChatRetentionPolicy;
}

/**
 * Options for `CommunicationTokenCredential`'s `getToken` function.
 */
export declare interface CommunicationGetTokenOptions {
    /**
     * An implementation of `AbortSignalLike` to cancel the operation.
     */
    abortSignal?: AbortSignalLike;
}

/**
 * Identifies a communication participant.
 */
export declare type CommunicationIdentifier = CommunicationUserIdentifier | PhoneNumberIdentifier | MicrosoftTeamsUserIdentifier | MicrosoftTeamsAppIdentifier | TeamsExtensionUserIdentifier | UnknownIdentifier;

/**
 * The CommunicationIdentifierKind is a discriminated union that adds a property `kind` to an Identifier.
 */
export declare type CommunicationIdentifierKind = CommunicationUserKind | PhoneNumberKind | MicrosoftTeamsUserKind | MicrosoftTeamsAppKind | TeamsExtensionUserKind | UnknownIdentifierKind;

export declare class CommunicationSignalingClient implements SignalingClient {
    private readonly credential;
    private readonly logger;
    private readonly options?;
    private readonly trouter;
    private config;
    private stateChangedListener;
    private tokenFetchRetries;
    private resourceEndpoint;
    private gatewayApiVersion;
    constructor(credential: CommunicationTokenCredential, logger: AzureLogger, options?: SignalingClientOptions);
    start(): Promise<void>;
    stop(isTokenExpired?: boolean): Promise<void>;
    on(event: "connectionChanged", listener: (state: ConnectionState) => void): void;
    on(event: "chatMessageReceived", listener: (payload: ChatMessageReceivedEvent) => void): void;
    on(event: "typingIndicatorReceived", listener: (payload: TypingIndicatorReceivedEvent) => void): void;
    on(event: "readReceiptReceived", listener: (payload: ReadReceiptReceivedEvent) => void): void;
    on(event: "chatMessageEdited", listener: (payload: ChatMessageEditedEvent) => void): void;
    on(event: "chatMessageDeleted", listener: (payload: ChatMessageDeletedEvent) => void): void;
    on(event: "chatThreadCreated", listener: (payload: ChatThreadCreatedEvent) => void): void;
    on(event: "chatThreadPropertiesUpdated", listener: (payload: ChatThreadPropertiesUpdatedEvent) => void): void;
    on(event: "chatThreadDeleted", listener: (payload: ChatThreadDeletedEvent) => void): void;
    on(event: "participantsAdded", listener: (payload: ParticipantsAddedEvent) => void): void;
    on(event: "participantsRemoved", listener: (payload: ParticipantsRemovedEvent) => void): void;
}

/**
 * The Azure Communication Services token credential.
 */
export declare interface CommunicationTokenCredential {
    /**
     * Gets an `AccessToken` for the user. Throws if already disposed.
     * @param options - Additional options.
     */
    getToken(options?: CommunicationGetTokenOptions): Promise<AccessToken>;
}

/**
 * An Azure Communication user.
 */
export declare interface CommunicationUserIdentifier {
    /**
     * Id of the CommunicationUser as returned from the Communication Service.
     */
    communicationUserId: string;
}

/**
 * IdentifierKind for a CommunicationUserIdentifier.
 */
export declare interface CommunicationUserKind extends CommunicationUserIdentifier {
    /**
     * The identifier kind.
     */
    kind: "communicationUser";
}

export declare enum ConnectionState {
    Unknown = 0,
    Connected = 2,
    Disconnected = 3,
    Switching = 9
}

/**
 * A Microsoft Teams App.
 */
export declare interface MicrosoftTeamsAppIdentifier {
    /**
     * Optional raw id of the Microsoft Teams App.
     */
    rawId?: string;
    /**
     * The unique Microsoft Teams app ID.
     */
    teamsAppId: string;
    /**
     * The cloud that the Microsoft Teams App belongs to. If missing, the cloud is "public".
     */
    cloud?: "public" | "dod" | "gcch";
}

/**
 * IdentifierKind for a MicrosoftTeamsAppIdentifier.
 */
export declare interface MicrosoftTeamsAppKind extends MicrosoftTeamsAppIdentifier {
    /**
     * The identifier kind.
     */
    kind: "microsoftTeamsApp";
}

/**
 * A Microsoft Teams user.
 */
export declare interface MicrosoftTeamsUserIdentifier {
    /**
     * Optional raw id of the Microsoft Teams user.
     */
    rawId?: string;
    /**
     * Id of the Microsoft Teams user. If the user isn't anonymous, the id is the Entra ID object id of the user.
     */
    microsoftTeamsUserId: string;
    /**
     * True if the user is anonymous, for example when joining a meeting with a share link. If missing, the user is not anonymous.
     */
    isAnonymous?: boolean;
    /**
     * The cloud that the Microsoft Teams user belongs to. If missing, the cloud is "public".
     */
    cloud?: "public" | "dod" | "gcch";
}

/**
 * IdentifierKind for a MicrosoftTeamsUserIdentifier.
 */
export declare interface MicrosoftTeamsUserKind extends MicrosoftTeamsUserIdentifier {
    /**
     * The identifier kind.
     */
    kind: "microsoftTeamsUser";
}

/** No thread retention policy. */
export declare interface NoneRetentionPolicy {
    /** Polymorphic discriminator, which specifies the different types this object can be */
    kind: "none";
}

/**
 * Event for participants added to a chat thread.
 * All chat participants receive this event, including the original sender
 */
export declare interface ParticipantsAddedEvent extends BaseChatThreadEvent {
    /**
     * The timestamp when the member was added. The timestamp is in RFC3339 format:
     * `yyyy-MM-ddTHH:mm:ssZ`.
     */
    addedOn: Date;
    /**
     * The participants added to the thread.
     */
    participantsAdded: ChatParticipant[];
    /**
     * Id of the user that added the chat participants.
     */
    addedBy: ChatParticipant;
}

/**
 * Event for a participant added to a chat thread.
 * All chat participants receive this event, including the original sender
 */
export declare interface ParticipantsRemovedEvent extends BaseChatThreadEvent {
    /**
     * The timestamp when the member was removed. The timestamp is in RFC3339 format:
     * `yyyy-MM-ddTHH:mm:ssZ`.
     */
    removedOn: Date;
    /**
     * The participants removed from the thread.
     */
    participantsRemoved: ChatParticipant[];
    /**
     * Id of the user that removed the chat participants.
     */
    removedBy: ChatParticipant;
}

/**
 * A phone number.
 */
export declare interface PhoneNumberIdentifier {
    /**
     * Optional raw id of the phone number.
     */
    rawId?: string;
    /**
     * The phone number in E.164 format.
     */
    phoneNumber: string;
    /**
     * The asserted Id is set on a phone number that is already in the same call to distinguish from other connections made through the same number.
     */
    assertedId?: string;
    /**
     * True if the phone number is anonymous.
     */
    isAnonymous?: boolean;
}

/**
 * IdentifierKind for a PhoneNumberIdentifier.
 */
export declare interface PhoneNumberKind extends PhoneNumberIdentifier {
    /**
     * The identifier kind.
     */
    kind: "phoneNumber";
}

/**
 * Event for a received read receipt
 */
export declare interface ReadReceiptReceivedEvent extends BaseChatEvent {
    /**
     * The id of the last read chat message.
     */
    chatMessageId: string;
    /**
     * The timestamp when the message was read. The timestamp is in RFC3339 format: yyyy-MM-ddTHH:mm:ssZ
     */
    readOn: Date;
}

export declare interface SignalingClient {
    /**
     * Start the realtime connection.
     */
    start(): void;
    /**
     * Stop the realtime connection and unsubscribe all event handlers.
     */
    stop(isTokenExpired?: boolean): void;
    /**
     * Listen to connectionChanged events.
     */
    on(event: "connectionChanged", listener: (state: ConnectionState) => void): void;
    /**
     * Listen to chatMessageReceived events.
     */
    on(event: "chatMessageReceived", listener: (payload: ChatMessageReceivedEvent) => void): void;
    /**
     * Listen to typingIndicatorReceived events.
     */
    on(event: "typingIndicatorReceived", listener: (payload: TypingIndicatorReceivedEvent) => void): void;
    /**
     * Listen to readReceiptReceived events.
     */
    on(event: "readReceiptReceived", listener: (payload: ReadReceiptReceivedEvent) => void): void;
    /**
     * Listen to chatMessageEdited events.
     */
    on(event: "chatMessageEdited", listener: (payload: ChatMessageEditedEvent) => void): void;
    /**
     * Listen to chatMessageDeleted events.
     */
    on(event: "chatMessageDeleted", listener: (payload: ChatMessageDeletedEvent) => void): void;
    /**
     * Listen to chatThreadCreated events.
     */
    on(event: "chatThreadCreated", listener: (payload: ChatThreadCreatedEvent) => void): void;
    /**
     * Listen to chatThreadPropertiesUpdated events.
     */
    on(event: "chatThreadPropertiesUpdated", listener: (payload: ChatThreadPropertiesUpdatedEvent) => void): void;
    /**
     * Listen to chatThreadDeleted events.
     */
    on(event: "chatThreadDeleted", listener: (payload: ChatThreadDeletedEvent) => void): void;
    /**
     * Listen to participantsAdded events.
     */
    on(event: "participantsAdded", listener: (payload: ParticipantsAddedEvent) => void): void;
    /**
     * Listen to participantsRemoved events.
     */
    on(event: "participantsRemoved", listener: (payload: ParticipantsRemovedEvent) => void): void;
}

export declare interface SignalingClientOptions {
    registrationTimeInMs?: number;
    resourceEndpoint?: string;
    gatewayApiVersion?: string;
    additionalPolicies?: AdditionalPolicyConfig[];
    userAgentOptions?: UserAgentPolicyOptions;
}

/**
 * A Microsoft Teams Phone user who is using the Azure Communication Services resource to extend their Teams Phone set up.
 */
export declare interface TeamsExtensionUserIdentifier {
    /**
     * Optional raw id of the Microsoft Teams Extension user.
     */
    rawId?: string;
    /**
     * The Id of the Microsoft Teams Extension user, i.e. the Entra ID object Id of the user.
     */
    userId: string;
    /**
     * The tenant Id of the Microsoft Teams Extension user.
     */
    tenantId: string;
    /**
     * The Azure Communication Services resource Id.
     */
    resourceId: string;
    /**
     * The cloud that the Microsoft Teams Extension user belongs to. If missing, the cloud is "public".
     */
    cloud?: "public" | "dod" | "gcch";
}

/**
 * IdentifierKind for a TeamsExtensionUserIdentifier.
 */
export declare interface TeamsExtensionUserKind extends TeamsExtensionUserIdentifier {
    /**
     * The identifier kind.
     */
    kind: "teamsExtensionUser";
}

/** Thread retention policy based on thread creation date. */
export declare interface ThreadCreationDateRetentionPolicy {
    /** Polymorphic discriminator, which specifies the different types this object can be */
    kind: "threadCreationDate";
    /** Indicates how many days after the thread creation the thread will be deleted. */
    deleteThreadAfterDays: number;
}

/**
 * Event for a received typing indicator when a chat participant is typing.
 * All chat participants receive this event, including the original sender
 */
export declare interface TypingIndicatorReceivedEvent extends BaseChatEvent {
    /**
     * Version of the message.
     */
    version: string;
    /**
     * The timestamp when the message arrived at the server. The timestamp is in RFC3339 format:
     * `yyyy-MM-ddTHH:mm:ssZ`.
     */
    receivedOn: Date;
}

/**
 * An unknown identifier that doesn't fit any of the other identifier types.
 */
export declare interface UnknownIdentifier {
    /**
     * Id of the UnknownIdentifier.
     */
    id: string;
}

/**
 * IdentifierKind for UnknownIdentifier.
 */
export declare interface UnknownIdentifierKind extends UnknownIdentifier {
    /**
     * The identifier kind.
     */
    kind: "unknown";
}

export { }