public async Task HandlePageCallback(SlackAction slackAction)
{
PageCallbackId pageCallbackId = PageCallbackId.FromJson(slackAction.CallbackId);
GetCacheItemResult result = await _mediator.Send(new GetCacheItem(pageCallbackId.CacheItemId));
int page = 1;
page = Convert.ToInt32(pageCallbackId.Page);
switch (slackAction.Actions.First().Value)
{
case "nextpage":
page++;
break;
case "prevpage":
page--;
break;
}
dynamic notesAttachment = _attachmentGenerator.GenerateAttachment(result.Notes, pageCallbackId.CacheItemId, page);
await _disappearingSlackMessageProvider.SendDisappearingSlackUpdate(
channel : slackAction.Channel.Id,
ts : slackAction.MessageTs,
attachment : (string)notesAttachment,
text : "");
}
public override string GenerateAttachment(IEnumerable <Note> notes, string cacheItemId, int page = 1)
{
if (page < 1)
{
throw new ArgumentOutOfRangeException(nameof(page));
}
int totalPages = GetTotalPageCount(notes.Count(), Constants.Constants.ReturnedNotesMaxReview);
int rangeStart = GetPagedItemOffsetStart(page, Constants.Constants.ReturnedNotesMaxReview);
int pageItemCount = GetPageItemCount(notes.Count(), rangeStart, Constants.Constants.ReturnedNotesMaxReview);
List <SlackAttachment> listOfAttachments = new List <SlackAttachment>();
foreach (int i in Enumerable.Range(rangeStart, pageItemCount))
{
SlackAttachmentAction slackAction = new SlackAttachmentAction()
{
Name = "option",
Text = "Delete",
Type = "button",
Value = "delete"
};
DeleteCallbackId deleteCallbackId = new DeleteCallbackId(
Constants.Constants.ActionNameReviewSelection,
Constants.Constants.CallbackIdTypeNote,
notes.ElementAt(i).DocumentId);
SlackAttachment slackAttachment = new SlackAttachment()
{
Text = notes.ElementAt(i).Text,
Fallback = Constants.Constants.MessagePleaseUpgrade,
Actions = new SlackAttachmentAction[] { slackAction },
CallbackId = deleteCallbackId.ToJson(),
Ts = notes.ElementAt(i).Timestamp
};
listOfAttachments.Add(slackAttachment);
}
List <SlackAttachmentAction> slackAttachmentActions = new List <SlackAttachmentAction>();
if (totalPages > page)
{
SlackAttachmentAction slackAction = new SlackAttachmentAction()
{
Name = "page",
Text = "Next Page",
Type = "button",
Value = "nextpage"
};
slackAttachmentActions.Add(slackAction);
}
if (page > 1)
{
SlackAttachmentAction slackAction = new SlackAttachmentAction()
{
Name = "page",
Text = "Prev Page",
Type = "button",
Value = "prevpage"
};
slackAttachmentActions.Add(slackAction);
}
if (slackAttachmentActions.Any())
{
PageCallbackId pageCallbackId = new PageCallbackId(
Constants.Constants.ActionNameReviewSelection,
Constants.Constants.CallbackIdTypePage,
page.ToString(),
cacheItemId);
SlackAttachment slackAttachment = new SlackAttachment()
{
Fallback = Constants.Constants.MessagePleaseUpgrade,
Actions = slackAttachmentActions.ToArray <SlackAttachmentAction>(),
CallbackId = pageCallbackId.ToJson(),
Color = GetRandomHexColour()
};
listOfAttachments.Add(slackAttachment);
}
return(JsonConvert.SerializeObject(listOfAttachments));
}
