ChannelState.h

// Copyright 2026 Stream.IO, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "Message.h"
#include "MessageStore.h"
#include "Read.h"
 
#include "ChannelState.generated.h"
 
struct FChannelStateResponseFieldsDto;
 
USTRUCT(BlueprintType)
struct STREAMCHAT_API FChannelState
{
    GENERATED_BODY()
 
    
    FChannelState();
 
    explicit FChannelState(const FChannelStateResponseFieldsDto&, UUserManager*);
 
    void Append(const FChannelStateResponseFieldsDto&, UUserManager*);
 
    void AppendReplies(const FString& ParentId, const TArray<FMessageDto>&, UUserManager*);
 
    void AddMessage(const FMessage&);
 
    bool IsMessageRead(const FMessage&) const;
 
    void MarkRead();
 
    int32 UnreadCount() const;
 
    UPROPERTY(BlueprintReadOnly, Category = "Stream Chat|Channel")
    FMessageStore Messages;
 
    UPROPERTY(BlueprintReadOnly, Category = "Stream Chat|Channel")
    int32 WatcherCount = 0;
 
    // List of channel watchers
    UPROPERTY(BlueprintReadOnly, Category = "Stream Chat|Channel")
    TArray<FUserRef> Watchers;
 
    UPROPERTY(BlueprintReadOnly, Category = "Stream Chat|Channel")
    TArray<FRead> Read;
 
private:
    FRead* GetCurrentUserRead();
    const FRead* GetCurrentUserRead() const;
};