SimplePromptBotAccessors.cs

// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License.

using System;
using Microsoft.Bot.Builder;
using Microsoft.Bot.Builder.Dialogs;

namespace Microsoft.BotBuilderSamples
{
    /// <summary>
    /// This class is created as a Singleton and passed into the IBot-derived constructor.
    ///  - See <see cref="SimplePromptBot"/> constructor for how that is injected.
    ///  - See the Startup.cs file for more details on creating the Singleton that gets
    ///    injected into the constructor.
    /// </summary>
    public class SimplePromptBotAccessors
    {
        /// <summary>
        /// Initializes a new instance of the <see cref="SimplePromptBotAccessors"/> class.
        /// Contains the <see cref="ConversationState"/> and associated <see cref="IStatePropertyAccessor{T}"/>.
        /// </summary>
        /// <param name="conversationState">The state object that stores the dialog state.</param>
        public SimplePromptBotAccessors(ConversationState conversationState)
        {
            ConversationState = conversationState ?? throw new ArgumentNullException(nameof(conversationState));
        }

        // Conversation state is of type DialogState. Under the covers this is a serialized dialog stack.
        public IStatePropertyAccessor<DialogState> ConversationDialogState { get; set; }

        /// <summary>
        /// Gets the <see cref="ConversationState"/> object for the conversation.
        /// </summary>
        /// <value>The <see cref="ConversationState"/> object.</value>
        public ConversationState ConversationState { get; }
    }
}