Govor/Govor.Application/Interfaces/Messages/IMessageService.cs

using Govor.Application.Interfaces.Messages.Parameters;
using Govor.Core.Models; // For Result

namespace Govor.Application.Interfaces.Messages;

// Combining IChatService and IGroupService functionalities relevant to messages
public interface IMessageService
{
    Task<SendMessageResult> SendMessageAsync(SendMessage messageParameters);
    Task<EditMessageResult> EditMessageAsync(EditMessage messageParameters);
    Task<DeleteMessageResult> DeleteMessageAsync(DeleteMessage messageParameters);

    // Potentially other message-related methods like:
    // Task<GetMessagesResult> GetMessagesAsync(Guid userId, Guid chatId, RecipientType chatType, int pageNumber, int pageSize);
    // Task<Result> MarkMessageAsReadAsync(Guid userId, Guid messageId);
}

// Define specific result types for clarity, including original message for notifications if needed

public record SendMessageResult(bool IsSuccess, Exception? Exception, Guid MessageId)
    : Result(IsSuccess, Exception, MessageId);

public record EditMessageResult(bool IsSuccess, Exception? Exception, Message? OriginalMessage)
    : Result(IsSuccess, Exception, OriginalMessage?.Id ?? Guid.Empty)
{
    // OriginalMessage can be useful for the Hub to know details like RecipientType, RecipientId for notifications
}

public record DeleteMessageResult(bool IsSuccess, Exception? Exception, Message? OriginalMessage)
    : Result(IsSuccess, Exception, OriginalMessage?.Id ?? Guid.Empty);