using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Routing;
using Sarand.Net.Standard.Base.Bus;
using Sarand.Net.Standard.Base.Core;
using Sarand.Net.Standard.Base.Dbas;
using Sarand.Net.Standard.Base.Utils;
using Sarand.Net.Standard.Dbas.Data;
using Saxonite.Net.Core.Web.Admin.Models;
using Saxonite.Net.Standard.Base.App;
using System;
using System.Collections.Generic;
using System.Linq;

namespace Saxonite.Net.Core.Web.Admin.Controllers
{
	//=======================================================================
	// Home Controller - Ajax - Application Stats
	//=======================================================================
	partial class HomeController
	{
		//-------------------------------------------------------------------
		// Application Stats data.
		private class ApplicationStatsData
		{
			public class UserStatsData
			{
				public String Caption { get; set; }
				public AjaxResponse_Data.ItemLabelValue Awaiting { get; set; }
				public String AwaitingLink { get; set; }
				public List<AjaxResponse_Data.ItemLabelValue> OnlineStats { get; set; }
				public String OnlineLink { get; set; }
			}
			public UserStatsData User { get; } = new UserStatsData();
			public class OrganisationStatsData
			{
				public String Caption { get; set; }
				public AjaxResponse_Data.ItemLabelValue Awaiting { get; set; }
				public String AwaitingLink { get; set; }
			}
			public OrganisationStatsData Organisation { get; } = new OrganisationStatsData();
		}

		//-------------------------------------------------------------------
		// Get Application Stats ajax request.
		//-------------------------------------------------------------------
		private class AjaxResponse_ApplicationStats : AjaxResponse_Data
		{
			// Construction.
			public AjaxResponse_ApplicationStats(SaxModel_Admin model) : base(model) { }
			// Table list.
			public ApplicationStatsData Stats { get; } = new ApplicationStatsData();
		}
		//-------------------------------------------------------------------
		[HttpPost]
		[Route("Home/Ajax/GetApplicationStats")]
		public IActionResult Ajax_GetApplicationStats(Model_Sport model)
		{
			String fn = GetType().Name + ".Ajax_GetApplicationStats";
			String messageTitle = Localiser["home.caption.application"];
			AjaxResponse_ApplicationStats responseData = new AjaxResponse_ApplicationStats(model);

			// Validate session.
			if (!ValidUserSession)
				return GetAjaxResult_InvalidSession(responseData);

			// Captions.
			responseData.Stats.User.Caption = Localiser["user.caption.users"];
			responseData.Stats.Organisation.Caption = Localiser["organisation.caption.organisations"];

			// Core Database connection.
			ISacsDatabase db = SaxGlobals.App.GetCoreDatabase(SessionContext);

			// Query to count items awaiting activation.
			Dictionary<String, int> tableRowCounts = new Dictionary<string, int>(StringComparer.OrdinalIgnoreCase);
			List<String> query = new List<string>()
			{
				// User accounts.
				"SELECT",
				"ItemType  = '" + DbQuery.FormatForCondition(nameof(Sax.DataItemType.UserAccount)) + "',",
				"ItemCount = Count(*)",
				"FROM UserAccount ua",
				"WHERE ua.Status = 'AWA'",
				// Organisations.
				"UNION SELECT",
				"ItemType  = '" + DbQuery.FormatForCondition(nameof(Sax.DataItemType.Organisation)) + "',",
				"ItemCount = Count(*)",
				"FROM Organisation org",
				"WHERE org.Status = 'AWA'",
			};
			using (DbResultSet dbResultSet = DbResultSet_DataReader.ExecuteQuery(db, query.Concat("\n")))
			{
				while (dbResultSet != null && dbResultSet.NextRecord())
				{
					NamedValue.Map values = dbResultSet.GetRecordValues();
					Sax.DataItemType itemType = EnumUtil.ParseEnum(values.GetValue("ItemType").ToString(), Sax.DataItemType.Unknown);
					int itemCount = (int)values.GetValue("ItemCount").AsLong();
					switch (itemType)
					{
						case Sax.DataItemType.UserAccount:
							responseData.Stats.User.Awaiting = new AjaxResponse_Data.ItemLabelValue() { Label = Localiser["label.awaiting.activation"], Value = itemCount.ToString() };
							responseData.Stats.User.AwaitingLink = Url.Action("", "User", new RouteValueDictionary() { { "sta", "Await" } }).TrimStart('/');
							break;
						case Sax.DataItemType.Organisation:
							responseData.Stats.Organisation.Awaiting = new AjaxResponse_Data.ItemLabelValue() { Label = Localiser["label.awaiting.activation"], Value = itemCount.ToString() };
							responseData.Stats.Organisation.AwaitingLink = Url.Action("", "Organisation", new RouteValueDictionary() { { "sta", "Await" } }).TrimStart('/');
							break;
					}
				}
			}

			// Query to count users online.
			DateTime today = DateTime.Today;
			DateTime now = DateTime.Now;
			const String online5Mins = "Online5Mins";
			const String online15Mins = "Online15Mins";
			const String online30Mins = "Online30Mins";
			const String online60Mins = "Online60Mins";
			const String onlineToday = "OnlineToday";
			const String onlineWeek = "OnlineWeek";
			const String onlineMonth = "OnlineMonth";
			query = new List<string>()
			{
				// Users Online last 5 mins.
				"Select '" + online5Mins + "' ItemType, (Select Count(*) From UserOnline Where OnlineAt>=" + DbQuery.FormatDateTimeForCondition(now.AddMinutes(-5)) + ") ItemCount ",
				"Union Select '" + online15Mins + "' ItemType, (Select Count(*) From UserOnline Where OnlineAt>=" + DbQuery.FormatDateTimeForCondition(now.AddMinutes(-15)) + ") ItemCount ",
				"Union Select '" + online30Mins + "' ItemType, (Select Count(*) From UserOnline Where OnlineAt>=" + DbQuery.FormatDateTimeForCondition(now.AddMinutes(-30)) + ") ItemCount ",
				"Union Select '" + online60Mins + "' ItemType, (Select Count(*) From UserOnline Where OnlineAt>=" + DbQuery.FormatDateTimeForCondition(now.AddMinutes(-60)) + ") ItemCount ",
				"Union Select '" + onlineToday + "' ItemType, (Select Count(*) From UserOnline Where OnlineAt>=" + DbQuery.FormatDateForCondition(today) + ") ItemCount ",
				"Union Select '" + onlineWeek + "' ItemType, (Select Count(*) From UserOnline Where OnlineAt>=" + DbQuery.FormatDateForCondition(DateUtil.StartOfWorkingWeek(today)) + ") ItemCount ",
				"Union Select '" + onlineMonth + "' ItemType, (Select Count(*) From UserOnline Where OnlineAt>=" + DbQuery.FormatDateForCondition(DateUtil.StartOfMonth(today)) + ") ItemCount ",
			};
			using (DbResultSet dbResultSet = DbResultSet_DataReader.ExecuteQuery(db, query.Concat("\n")))
			{
				while (dbResultSet != null && dbResultSet.NextRecord())
				{
					if (responseData.Stats.User.OnlineStats == null)
						responseData.Stats.User.OnlineStats = new List<AjaxResponse_Data.ItemLabelValue>();
					NamedValue.Map values = dbResultSet.GetRecordValues();
					String itemType = values.GetValue("ItemType").ToString();
					int itemCount = (int)values.GetValue("ItemCount").AsLong();
					switch (itemType)
					{
						case online5Mins:
							if (itemCount > 0)
								responseData.Stats.User.OnlineStats.Add(new AjaxResponse_Data.ItemLabelValue() { Label = Localiser["label.online.last5Mins"], Value = itemCount.ToString() });
							break;
						case online15Mins:
							if (itemCount > 0)
								responseData.Stats.User.OnlineStats.Add(new AjaxResponse_Data.ItemLabelValue() { Label = Localiser["label.online.last15Mins"], Value = itemCount.ToString() });
							break;
						case online30Mins:
							if (itemCount > 0)
								responseData.Stats.User.OnlineStats.Add(new AjaxResponse_Data.ItemLabelValue() { Label = Localiser["label.online.last30Mins"], Value = itemCount.ToString() });
							break;
						case online60Mins:
							if (itemCount > 0)
								responseData.Stats.User.OnlineStats.Add(new AjaxResponse_Data.ItemLabelValue() { Label = Localiser["label.online.last60Mins"], Value = itemCount.ToString() });
							break;
						case onlineToday:
							if (itemCount > 0)
								responseData.Stats.User.OnlineStats.Add(new AjaxResponse_Data.ItemLabelValue() { Label = Localiser["label.online.today"], Value = itemCount.ToString() });
							break;
						case onlineWeek:
							if (itemCount > 0)
								responseData.Stats.User.OnlineStats.Add(new AjaxResponse_Data.ItemLabelValue() { Label = Localiser["label.online.thisWeek"], Value = itemCount.ToString() });
							break;
						case onlineMonth:
							if (itemCount > 0)
								responseData.Stats.User.OnlineStats.Add(new AjaxResponse_Data.ItemLabelValue() { Label = Localiser["label.online.thisMonth"], Value = itemCount.ToString() });
							break;
					}
					responseData.Stats.User.OnlineLink = Url.Action("", "UsersOnline", new RouteValueDictionary() { }).TrimStart('/');
				}
			}

			// Complete response.
			responseData.Success = true;
			return Json(responseData);
		}

		//-------------------------------------------------------------------
	}
	//=======================================================================
}