/// <summary>
/// This method should be call right after a user with Agent profile logs in
/// </summary>
/// <param name="userDetails">Current user details</param>
/// <returns>A async task</returns>
public async Task OnAgentConnectedAsync(UserDetails userDetails)
{
if (userDetails == null)
{
throw new System.ArgumentNullException(nameof(userDetails));
}
var currentUserDetails = userDetails;
// Assign to a new session
var livechatSession = new LivechatUserSession
{
ConnectionId = currentUserDetails.ConnectionId,
LivechatUserId = currentUserDetails.LivechatUserId
};
await livechatRules.CreateNewSession(livechatSession);
var channels = await conversationHandler.SendChannelListToAgent(currentUserDetails.ConnectionId, livechatSession.LivechatUserId);
currentUserDetails.Channels = channels;
// Assign all agent channels to the new connectionId
await AddAgentChannels(currentUserDetails.ConnectionId, channels);
}
/// <summary>
/// It returns bunch of messages to clients
/// </summary>
/// <param name="channelId"></param>
/// <returns></returns>
public async Task GetLastMessages(string channelId)
{
var currentSession = await CurrentUserDetails();
// Creates a new session for whatever this user is
var livechatSession = new LivechatUserSession
{
ConnectionId = currentSession.ConnectionId,
LivechatUserId = currentSession.LivechatUserId
};
var channel = await livechatRules.GetCurrentUserChannel(livechatSession.LivechatUserId, channelId);
if (channel == null)
{
await CurrentUser.SendAsync(HubMessages.INVALID_CHANNEL);
return;
}
// Gets and sets pack of messages
var lastMessages = await livechatRules.LoadLastMessages(livechatSession, channel);
await CurrentUser.SendAsync("SendBulk", lastMessages);
}
private async Task AddAgentToGroupAndCreateChannel(LivechatUserSession livechatSession, LivechatChannel userCurrentChannel)
{
await Groups.AddAsync(livechatSession.ConnectionId, userCurrentChannel.ChannelId);
await livechatRules.AddUserToChannel(new LivechatChannelUser
{
LivechatChannelId = userCurrentChannel.ChannelId,
LivechatUserId = livechatSession.LivechatUserId
});
// Sends the channel to livechat customer
await CurrentUser.SendAsync("NewChannelRegistry", userCurrentChannel.ChannelId);
}
public async Task TryingFindAgent(string channelId, int currentNum)
{
var currentSession = await CurrentUserDetails();
// Creates a new session for whatever this user is
var livechatSession = new LivechatUserSession
{
ConnectionId = currentSession.ConnectionId,
LivechatUserId = currentSession.LivechatUserId
};
var channel = await livechatRules.GetCurrentUserChannel(livechatSession.LivechatUserId, channelId);
var agent = await livechatRules.GetAgentsOnChannels(channel.Id, currentSession.LivechatUserId);
if (agent != null)
{
return;
}
if (channel == null)
{
await CurrentUser.SendAsync(HubMessages.INVALID_CHANNEL);
return;
}
var chatConversationHandler = CreateHumanAgentConversation();
await chatConversationHandler.FindNewAgent(new LivechatChannel
{
Id = channelId,
StoreId = 1
},
clientCallbackMethod : HubMessages.LAST_TRYING_FIND_AGENT,
currentNumber : currentNum
);
}
/// <summary>
/// This method should be call right after a user with Customer profile logs in
/// </summary>
/// <param name="userDetails"></param>
/// <returns></returns>
public async Task OnCustomerConnectedAsync(UserDetails userDetails)
{
if (userDetails == null)
{
throw new ArgumentNullException(nameof(userDetails));
}
var userStoreId = userDetails.CustomerStoreId;
if (userStoreId <= 0)
{
context.Connection.Abort();
return;
}
// CAUTION
userDetails.AddStore(userStoreId);
// Assign to a new session
var livechatSession = new LivechatUserSession
{
ConnectionId = userDetails.ConnectionId,
LivechatUserId = userDetails.LivechatUserId
};
// Include connected user inside Nop Customer table
await livechatRules.CloneUserToAStore(userDetails.CustomerId, userDetails.CustomerStoreId);
await livechatRules.CreateNewSession(livechatSession);
// Check if LivechatId is already registered in some chat with this current store
// Gets only active stores (IsFinished is false)
var userCurrentChannel = await livechatRules.GetCustomerChannel(
userStoreId,
livechatSession.LivechatUserId
);
// If there is no channel for Customer x Store, it creates a new one and deal with it
if (userCurrentChannel == null)
{
userCurrentChannel = await AssignLivechatUserToChannel(userDetails);
// Persists current user channel on details so it can be recovery later on online/offline status
userDetails.Channels.Add(userCurrentChannel);
// Adds user payload
await conversationHandler.PersistPayload(
livechatUserId : livechatSession.LivechatUserId,
channelId : userCurrentChannel.ChannelId,
userPayload : userDetails.Payload,
overwritePayload : false
);
// This is the right time to call a new agent on IChatConversationHandler instance
await conversationHandler.OnChannelCreated(userCurrentChannel);
return;
}
// If it went this far, is probably because the currentUser's connection went down and its connecting again
// so basically we should provide its current channel and check if there is some available agent to continue this call
//
// Adds current connectionId to correct user group
// After that it sends the new channel registration to the user
await NotifyAndAddUserToGroup(
userDetails.ConnectionId,
userCurrentChannel.ChannelId
);
// Persists current user channel on details so it can be recovery later on online/offline status
userDetails.Channels.Add(userCurrentChannel);
// Adds user payload
await conversationHandler.PersistPayload(
livechatUserId : livechatSession.LivechatUserId,
channelId : userCurrentChannel.ChannelId,
userPayload : userDetails.Payload,
overwritePayload : false
);
// Verifies if user is alone. If it is try to find a new agent again
var agentsOnChannel = await conversationHandler.GetAgentsOnChannel(
userCurrentChannel.ChannelId,
userDetails.LivechatUserId
);
if (agentsOnChannel.Count == 0)
{
await conversationHandler.FindNewAgent(userCurrentChannel);
}
else
{
// TODO: Send an warning telling agent about new users online on this channel
//foreach (var agent in agentsOnChannel)
//{
// await conversationHandler.SendChannelListToAgent(string.Empty, agent.LivechatUserId);
//}
}
}
