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CoHostStore

Introduction
Cross-room connection feature allows hosts from different live rooms to interact in real-time. CoHostStore provides a comprehensive set of APIs to manage the entire cross-room connection lifecycle.
Important: 
Always use the factory method create(liveID:) with a valid live room ID to create a CoHostStore instance. Do not attempt to initialize directly.
Note: 
Connection state updates are delivered through the state publisher. Subscribe to it to receive real-time updates about connection status, connected hosts, invitations and applications.
Warning: 
If a connection request does not receive a response within the specified timeout, the timeout event will be triggered. Always handle timeout scenarios in your UI.
Features
Bidirectional Connection：Hosts can initiate connection requests to other hosts, and also receive connection requests from other hosts
State Management：Real-time tracking of connection status, connected hosts, invitation list and applicants
Event-Driven Architecture：Provides connection event stream for monitoring various connection state changes
Layout Templates：Supports multiple connection layout templates, such as dynamic grid layout and 1-to-6 layout
Subscribable Data
CoHostState fields are described below:
Property
Type
Description
coHostStatus
CoHostStatus
Real-time cross-room connection status.
connected
[SeatUserInfo]
List of hosts currently connected with current live room.
invitees
[SeatUserInfo]
List of hosts to whom requests have been sent.
applicant
SeatUserInfo?
Host who initiated connection request to current live room.
candidatesCursor
String
Recommended user list cursor.
candidates
[SeatUserInfo]
Recommended user list.
API List
Function
Description
create
Create object instance.
coHostEventPublisher
Connection event publisher.
requestHostConnection
Initiate connection request.
cancelHostConnection
Cancel connection request.
acceptHostConnection
Accept connection request.
rejectHostConnection
Reject connection request.
exitHostConnection
Exit connection.
getCoHostCandidates
Get recommended host list.
Creating Instance
create
Create CoHostStore instance
public static func create(liveID: String) -> CoHostStore {
    let store: CoHostStoreImpl = StoreFactory.shared.getStore(liveId: liveID)
    return store
}
Version
Supported since version 3.5.
Parameters
Parameter
Type
Required
Description
liveID
String
Required
Live room ID.
Observing State and Events
coHostEventPublisher
Connection event publisher
Connection Operations
requestHostConnection
Initiate host connection request
public func requestHostConnection(targetHost liveId: String,
                                  layoutTemplate: CoHostLayoutTemplate,
                                  timeout: TimeInterval,
                                  extraInfo: String = "",
                                  completion: CompletionClosure?)
{
    fatalError("\(#function) must be overridden by subclass")
}
Initiate a cross-room connection request to target host.

After calling this method, a connection request is sent to the target host. The request will remain active until:
• Target host accepts via acceptHostConnection(fromHostLiveID:completion:)
• Target host rejects via rejectHostConnection(fromHostLiveID:completion:)
• Timeout expires
• You cancel via cancelHostConnection(toHostLiveID:completion:)
Version
Supported since version 3.5.
Parameters
Parameter
Type
Required
Description
liveId
String
Required
Target host's live room ID.
layoutTemplate
CoHostLayoutTemplate
Required
Connection layout template.
timeout
TimeInterval
Required
Request timeout (unit: seconds).
extraInfo
String
Required
Extension information.
completion
CompletionClosure?
Required
Callback for successful request initiation.
cancelHostConnection
Cancel host connection request
public func cancelHostConnection(toHostLiveID: String, completion: CompletionClosure?) {
    fatalError("\(#function) must be overridden by subclass")
}
Version
Supported since version 3.5.
Parameters
Parameter
Type
Required
Description
toHostLiveID
String
Required
Target host's live room ID.
completion
CompletionClosure?
Required
Callback for successful cancellation.
acceptHostConnection
Accept host connection request
public func acceptHostConnection(fromHostLiveID: String, completion: CompletionClosure?) {
    fatalError("\(#function) must be overridden by subclass")
}
Version
Supported since version 3.5.
Parameters
Parameter
Type
Required
Description
fromHostLiveID
String
Required
Live room ID of the host initiating connection request.
completion
CompletionClosure?
Required
Callback for successful acceptance.
rejectHostConnection
Reject host connection request
public func rejectHostConnection(fromHostLiveID: String, completion: CompletionClosure?) {
    fatalError("\(#function) must be overridden by subclass")
}
Version
Supported since version 3.5.
Parameters
Parameter
Type
Required
Description
fromHostLiveID
String
Required
Live room ID of the host initiating connection request.
completion
CompletionClosure?
Required
Callback for successful rejection.
exitHostConnection
Exit host connection
public func exitHostConnection(completion: CompletionClosure? = nil) {
    fatalError("\(#function) must be overridden by subclass")
}
Version
Supported since version 3.5.
Parameters
Parameter
Type
Required
Description
completion
CompletionClosure?
Required
Callback for successful exit from connection.
getCoHostCandidates
Get recommended host list that can connect with current host
public func getCoHostCandidates(cursor: String,
                          completion: CompletionClosure?) {
    fatalError("\(#function) must be overridden by subclass")
}
Version
Supported since version 3.5.
Parameters
Parameter
Type
Required
Description
cursor
String
Required
Cursor.
completion
CompletionClosure?
Required
Completion callback.
Data Structures
CoHostStatus
Current user's cross-room connection status
Enum Value
Value
Description
connected
0
Currently connected with other hosts.
disconnected
1
Not connected with other hosts.
CoHostLayoutTemplate
Connection layout template
Enum Value
Value
Description
hostVoiceConnection
2
Voice chat room connection layout.
hostDynamicGrid
600
Host dynamic grid layout.
hostDynamic1v6
601
Host dynamic 1v6 layout.
CoHostEvent
Connection request callback events
Enum Value
Description
onCoHostRequestReceived
This callback is triggered when a connection request is received.
onCoHostRequestCancelled
This callback is triggered when a connection request is cancelled.
onCoHostRequestAccepted
This callback is triggered when a connection request is accepted.
onCoHostRequestRejected
This callback is triggered when a connection request is rejected.
onCoHostRequestTimeout
This callback is triggered when a connection request times out.
onCoHostUserJoined
This callback is triggered when a user joins the connection.
onCoHostUserLeft
This callback is triggered when a user leaves the connection.
CoHostState
Cross-room connection related state data provided externally by CoHostStore
Property
Type
Description
coHostStatus
CoHostStatus
Real-time cross-room connection status.
connected
[SeatUserInfo]
List of hosts currently connected with current live room.
invitees
[SeatUserInfo]
List of hosts to whom requests have been sent.
applicant
SeatUserInfo?
Host who initiated connection request to current live room.
candidatesCursor
String
Recommended user list cursor.
candidates
[SeatUserInfo]
Recommended user list.
Usage Example
// Create store instance
let store = CoHostStore.create(liveID: "live_room_123")
﻿
// Subscribe to state changes
store.state.subscribe { state in
    print("Connection status: \(state.coHostStatus)")
    print("Connected hosts: \(state.connected.count)")
}
﻿
// Subscribe to connection events
store.coHostEventPublisher.sink { event in
    switch event {
    case .onCoHostRequestReceived(let inviter, let extensionInfo):
        print("Received connection request from \(inviter.userName)")
        // Show accept/reject UI
    case .onCoHostRequestAccepted(let invitee):
        print("Connection request accepted by \(invitee.userName)")
    case .onCoHostUserJoined(let userInfo):
        print("Host \(userInfo.userName) joined connection")
    default:
        break
    }
}
﻿
// Initiate connection request
store.requestHostConnection(
    targetHost: "target_live_id",
    layoutTemplate: .hostDynamicGrid,
    timeout: 30,
    extraInfo: "",
    completion: { code, message in
        if code == 0 {
            print("Connection request sent successfully")
        }
    }
)
﻿

Property	Type	Description
coHostStatus	CoHostStatus	Real-time cross-room connection status.
connected	[SeatUserInfo]	List of hosts currently connected with current live room.
invitees	[SeatUserInfo]	List of hosts to whom requests have been sent.
applicant	SeatUserInfo?	Host who initiated connection request to current live room.
candidatesCursor	String	Recommended user list cursor.
candidates	[SeatUserInfo]	Recommended user list.

Function	Description
create	Create object instance.
coHostEventPublisher	Connection event publisher.
requestHostConnection	Initiate connection request.
cancelHostConnection	Cancel connection request.
acceptHostConnection	Accept connection request.
rejectHostConnection	Reject connection request.
exitHostConnection	Exit connection.
getCoHostCandidates	Get recommended host list.

Parameter	Type	Required	Description
liveID	String	Required	Live room ID.

Enum Value	Value	Description
connected	0	Currently connected with other hosts.
disconnected	1	Not connected with other hosts.

Enum Value	Description
onCoHostRequestReceived	This callback is triggered when a connection request is received.
onCoHostRequestCancelled	This callback is triggered when a connection request is cancelled.
onCoHostRequestAccepted	This callback is triggered when a connection request is accepted.
onCoHostRequestRejected	This callback is triggered when a connection request is rejected.
onCoHostRequestTimeout	This callback is triggered when a connection request times out.
onCoHostUserJoined	This callback is triggered when a user joins the connection.
onCoHostUserLeft	This callback is triggered when a user leaves the connection.