using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Logging;
using Saxonite.Net.Core.Web.Online.Models;
using Saxonite.Net.Core.Web.Base.App;
using Saxonite.Net.Core.Web.Base.Controllers;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Threading.Tasks;
using Saxonite.Net.Standard.Base.Bus;
using Sarand.Net.Standard.Base.App;
using Sarand.Net.Standard.Base.Bus;
using Sarand.Net.Standard.Base.Utils;
using Sarand.Net.Standard.Base.Core;
using Sarand.Net.Standard.Base.Dbas;
using Saxonite.Net.Standard.Base.App;
using static Saxonite.Net.Standard.Base.App.Sax.Config;
using static Saxonite.Net.Standard.Base.Bus.SaxArticle;
using Saxonite.Net.Standard.Base.Bus.Support;
using static Saxonite.Net.Standard.Base.App.Sax;

namespace Saxonite.Net.Core.Web.Online.Controllers
{
	//=======================================================================
	// Online Support Controller - Feedback - Ajax actions.
	//=======================================================================
	partial class SupportController
	{
		//-------------------------------------------------------------------
		// Data definitions.
		private class UserReportResponseListData : AjaxResponse_Data.ItemData_Base
		{
			// Account Id only populated while account names are being queried, then nulled.
			public SysId UserAccountId { get; set; }
			public String UserDisplayName { get; set; }
			public String ReportTypeDesc { get; set; }
			public String ReportTitle { get; set; }
			public String RecordedOnDisp { get; set; }
			public bool? OwnReport { get; set; }
		}
		private class UserReportResponseItemData : UserReportResponseListData
		{
			public String ReportType { get; set; }
			public String Report { get; set; }
			public String RecordedOnForm { get; set; }
		}
		private void PopulateUserReportResponseListData(Model_Support model, SaxUserReport userReport, SaxUserAccount userAccount, UserReportResponseListData data)
		{
			data.Id = model.EncryptId(userReport.Id);
			data.UserDisplayName = userAccount.GetDisplayName();
			data.ReportTypeDesc = Localiser.GetUserReportTypeCaption(userReport.ReportType);
			data.ReportTitle = userReport.Title;
			data.RecordedOnDisp = model.FormatDateForDisplay(userReport.RecordedOn);
			data.OwnReport = userAccount.Id.Equals(SessionUserAccountId) ? (bool?)true : null;
		}
		private void PopulateUserReportResponseItemData(Model_Support model, SaxUserReport userReport, SaxUserAccount userAccount, UserReportResponseItemData data)
		{
			PopulateUserReportResponseListData(model, userReport, userAccount, data);
			data.ReportType = UserReportTypeCodes.GetCodeForType(userReport.ReportType);
			data.Report = userReport.Report;
			data.RecordedOnForm = model.FormatDateForForm(userReport.RecordedOn);
			data.CreatedOnFmt = model.FormatDateForDisplay(userReport.CreateStamp.On);
			data.StatusCode = userReport.StatusCode;
			data.StatusDesc = userReport.StatusDesc;
		}

		//-------------------------------------------------------------------
		// Support - Get User Reports.
		//-------------------------------------------------------------------
		private class AjaxResponse_UserReportsData : AjaxResponse_Data
		{
			// Construction.
			public AjaxResponse_UserReportsData(SaxModel_Online model) : base(model) { }
			// Reference data.
			public List<ItemCodeDesc> ReportTypes { get; } = new List<ItemCodeDesc>();
			// User Report list.
			public List<UserReportResponseListData> Reports { get; } = new List<UserReportResponseListData>();
		}
		// Ajax request.
		[HttpPost]
		[Route("Support/Ajax/GetUserReports")]
		public IActionResult GetUserReports(Model_Support model)
		{
			String fn = GetType().Name + ".GetUserReports";
			AjaxResponse_UserReportsData responseData = new AjaxResponse_UserReportsData(model);
			String messageTitle = Localiser["support.caption.user.reports"];

			// Validate session and referrer.
			if (!ValidReferer) return Forbid();
			if (!ValidUserSession) return GetAjaxResult_InvalidSession(responseData);
			RefreshModel(model);

			// Reference data - Report types.
			responseData.ReportTypes.Add(new AjaxResponse_Data.ItemCodeDesc());
			List<Sax.UserReportType> validReportTypes = new List<Sax.UserReportType>(EnumUtil.GetValues<Sax.UserReportType>());
			foreach (TypeCodeDesc reportType in UserReportTypeCodes)
			{
				if (!validReportTypes.Contains((Sax.UserReportType)reportType.Type)) continue;
				responseData.ReportTypes.Add(new AjaxResponse_Data.ItemCodeDesc() { Code = reportType.Code, Desc = Localiser.GetUserReportTypeCaption((Sax.UserReportType)reportType.Type) });
			}

			// Item filter.
			SaxUserReport.Params prmUserReport = new SaxUserReport.Params();
			prmUserReport.UserAccountIdsIncluded.Add(SessionUserAccountId);
			prmUserReport.StatusCat = SaxUserReport.StatusCat.NotDeleted;
			model.Paging.ItemTotal = (ulong)SupportMgr.GetUserReportCount(prmUserReport);
			model.PopulatePagingTo(prmUserReport.ResultsPaging);

			// Item columns.
			ColumnDfn colId = SupportMgr.GetUserReportColumnDfn(SaxUserReport.Column.Id);
			ColumnDfn colUserAccountId = SupportMgr.GetUserReportColumnDfn(SaxUserReport.Column.UserAccountId);
			ColumnDfn colReportType = SupportMgr.GetUserReportColumnDfn(SaxUserReport.Column.ReportType);
			ColumnDfn colReportTitle = SupportMgr.GetUserReportColumnDfn(SaxUserReport.Column.Title);
			ColumnDfn colRecordedOn = SupportMgr.GetUserReportColumnDfn(SaxUserReport.Column.RecordedOn);
			ColumnDfn colStatus = SupportMgr.GetUserReportColumnDfn(SaxUserReport.Column.Status);
			List<ColumnDfn> columns = new List<ColumnDfn>()
			{
				colId,
				colUserAccountId, colReportType, colReportTitle,colRecordedOn,
				colStatus,
			};

			// Sort columns.
			prmUserReport.SortColumns.Add(colRecordedOn);
			prmUserReport.SortColumns.Last().SortAscending = false;
			prmUserReport.SortColumns.Add(colId);
			prmUserReport.SortColumns.Last().SortAscending = false;

			// User account details must be queried separately - different database!
			HashSet<SysId> userAccountIds = new HashSet<SysId>();

			// Query items.
			using (DbResultSet resultSet = SupportMgr.ExecuteUserReportQuery(columns, prmUserReport))
			{
				while (resultSet != null && resultSet.HasRows && resultSet.NextRecord())
				{
					NamedValue.Map values = resultSet.GetRecordValues();
					SysId userAccountId = new SysId(values.GetLong(colUserAccountId.DataName));
					userAccountIds.Add(userAccountId);
					Sax.UserReportType reportType = (Sax.UserReportType)values.GetLong(colReportType.DataName);
					UserReportResponseListData userReportData = new UserReportResponseListData()
					{
						Id = model.EncryptId(new SysId(values.GetLong(colId.DataName))),
						UserAccountId = userAccountId,
						ReportTypeDesc = Localiser.GetUserReportTypeCaption(reportType),
						ReportTitle = values.GetString(colReportTitle.DataName),
						RecordedOnDisp = model.FormatDateForDisplay(values.GetDate(colRecordedOn.DataName)),
						OwnReport = userAccountId.Equals(SessionUserAccountId) ? (bool?)true : null,
						StatusCode = values.GetString(colStatus.DataName),
						StatusDesc = SacsSystem.GetStatusDescForCode(values.GetString(colStatus.DataName))
					};
					responseData.Reports.Add(userReportData);
				}
			}
			if (model.Paging.IsPaged)
				model.Paging.ItemCount = (ushort)responseData.Reports.Count;

			// Query and populate User Account details.
			if (userAccountIds.Any())
			{
				// User Account columns.
				ColumnDfn colUserAccount_Id = AccountMgr.GetUserAccountColumnDfn(SaxUserAccount.Column.Id);
				ColumnDfn colUserAccount_Title = AccountMgr.GetUserAccountColumnDfn(SaxUserAccount.Column.Title);
				ColumnDfn colUserAccount_FirstName = AccountMgr.GetUserAccountColumnDfn(SaxUserAccount.Column.FirstName);
				ColumnDfn colUserAccount_LastName = AccountMgr.GetUserAccountColumnDfn(SaxUserAccount.Column.LastName);
				List<ColumnDfn> userAccountCols = new List<ColumnDfn>() { colUserAccount_Id, colUserAccount_Title, colUserAccount_FirstName, colUserAccount_LastName };
				// User Account filter.
				SaxUserAccount.Params prmUserAccount = new SaxUserAccount.Params();
				prmUserAccount.IdsIncluded.AddRange(userAccountIds);
				prmUserAccount.StatusCat = SaxUserAccount.StatusCat.Any;
				// Query user accounts and populate properties to report list.
				using (DbResultSet resultSet = AccountMgr.ExecuteUserAccountQuery(userAccountCols, prmUserAccount))
				{
					while (resultSet != null && resultSet.HasRows && resultSet.NextRecord())
					{
						NamedValue.Map values = resultSet.GetRecordValues();
						SysId userAccountId = new SysId(values.GetLong(colUserAccount_Id.DataName));
						String title = values.GetString(colUserAccount_Title.DataName);
						String firstName = values.GetString(colUserAccount_FirstName.DataName);
						String lastName = values.GetString(colUserAccount_LastName.DataName);
						foreach (UserReportResponseListData userReportData in responseData.Reports.FindAll(item => item.UserAccountId.Equals(userAccountId)))
						{
							userReportData.UserDisplayName = SaxUserAccount.GetDisplayName(title, firstName, lastName);
							userReportData.UserAccountId = null;
						}
					}
				}

				// Clear any remaining User Account Ids.
				foreach (UserReportResponseListData userReportData in responseData.Reports.FindAll(item => item.UserAccountId != null))
					userReportData.UserAccountId = null;
			}

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

		//-------------------------------------------------------------------
		// Get User Report ajax request.
		//-------------------------------------------------------------------
		private class AjaxResponse_UserReport : AjaxResponse_Data
		{
			// Construction.
			public AjaxResponse_UserReport(SaxModel_Online model) : base(model) { }
			// Sport details.
			public UserReportResponseItemData Report { get; } = new UserReportResponseItemData();
		}
		//-------------------------------------------------------------------
		[HttpPost]
		[Route("Support/Ajax/GetUserReport")]
		public IActionResult Ajax_GetUserReport(Model_Support model)
		{
			String fn = GetType().Name + ".Ajax_GetUserReport";
			String messageTitle = Localiser["support.caption.user.report"];
			AjaxResponse_UserReport responseData = new AjaxResponse_UserReport(model);

			// Validate session and referrer.
			if (!ValidReferer) return Forbid();
			if (!ValidUserSession) return GetAjaxResult_InvalidSession(responseData);
			RefreshModel(model);

			// Record disposable items as they are created so all can be disposed when needed.
			using (DisposableCollection<SacsHierarchyItem> disposableItems = new DisposableCollection<SacsHierarchyItem>())
			{

				// Identify item.
				SysId userReportId = model.ExtractSysId(model.UserReport.Id);
				if (!SysId.IsValid(userReportId))
					return Json(responseData.SetMessage(messageTitle, Localiser["msg.error.item.id.not.specified"]));

				// Retrieve item.
				SaxUserReport userReport = SupportMgr.GetUserReportById(userReportId);
				disposableItems.Add(userReport);
				if (userReport == null)
				{
					SaLogger.Warn(fn + " Failed to retrieve User Report for Id: '" + model.UserReport.Id + "'");
					return Json(responseData.SetMessage(messageTitle, Localiser["msg.error.item.id.not.found"]));
				}

				// Retrieve user.
				SaxUserAccount userAccount = AccountMgr.GetUserAccountById(userReport.UserAccountId);
				disposableItems.Add(userAccount);
				if (userAccount == null)
				{
					SaLogger.Warn(fn + " Failed to retrieve User Account for Id: '" + userReport.UserAccountId + "'");
					return Json(responseData.SetMessage(messageTitle, Localiser["msg.error.item.id.not.found"]));
				}

				// Construct response.
				PopulateUserReportResponseItemData(model, userReport, userAccount, responseData.Report);
				responseData.Success = true;
			}
			return Json(responseData);
		}

		//-------------------------------------------------------------------
		// Store User Report ajax request.
		//-------------------------------------------------------------------
		[HttpPost]
		[Route("Support/Ajax/StoreUserReport")]
		public IActionResult Ajax_StoreUserReport(Model_Support model)
		{
			String fn = GetType().Name + ".Ajax_StoreUserReport";
			String messageTitle = Localiser["support.caption.user.report"];
			AjaxResponse_UserReport responseData = new AjaxResponse_UserReport(model);

			// Validate session and referrer.
			if (!ValidReferer) return Forbid();
			if (!ValidUserSession) return GetAjaxResult_InvalidSession(responseData);
			if (!SessionData_Online.User.Roles.Exists(item => item.Role == Sax.UserRole.SystemReviewer)) return Forbid();
			RefreshModel(model);

			// Record disposable items as they are created so all can be disposed when needed.
			using (DisposableCollection<SacsHierarchyItem> disposableItems = new DisposableCollection<SacsHierarchyItem>())
			{

				// Validate item properties.
				model.ValidateUserReportData(responseData);
				if (responseData.HasControlErrors())
					return Json(responseData);

				// Validate User Report Id against 'Exists' flag.
				SysId userReportId = model.ExtractSysId(model.UserReport.Id);
				bool userReportExists = StringUtil.ToBool(model.UserReport.Exists);
				if (userReportExists && !SysId.IsValid(userReportId))
				{
					SaLogger.Warn(fn + " Id not specified for existing User Report.");
					return Json(responseData.SetGoHome(messageTitle, Localiser["msg.error.system"]));
				}
				if (!userReportExists && SysId.IsValid(userReportId))
				{
					SaLogger.Warn(fn + " Id specified for new User Report: '" + model.UserReport.Id + "'");
					return Json(responseData.SetGoHome(messageTitle, Localiser["msg.error.system"]));
				}

				// Retrieve user.
				SysId userAccountId = SessionUserAccountId;
				SaxUserAccount userAccount = AccountMgr.GetUserAccountById(userAccountId);
				disposableItems.Add(userAccount);
				if (userAccount == null)
				{
					SaLogger.Warn(fn + " Failed to retrieve User Account for Id: '" + userAccountId + "'");
					return Json(responseData.SetMessage(messageTitle, Localiser["msg.error.item.id.not.found"]));
				}

				// Retrieve existing item.
				SaxUserReport userReport = SupportMgr.GetUserReportById(userReportId);
				disposableItems.Add(userReport);
				if (userReport == null && SysId.IsValid(userReportId))
				{
					SaLogger.Warn(fn + " Failed to retrieve User Report for Id: '" + model.UserReport.Id + "'");
					return Json(responseData.SetMessage(messageTitle, Localiser["msg.error.item.id.not.found"]));
				}
				// Validate User Report properties.
				if (userReport != null)
				{
					if (!userReport.UserAccountId.Equals(userAccountId))
					{
						SaLogger.Warn(fn + " Inconsistent User Account Id specified for User Report. Expected: " + userReport.UserAccountId + ". Found: " + userAccountId);
						return Json(responseData.SetGoHome(messageTitle, Localiser["msg.error.system"]));
					}
				}

				// If User Report doesn't exist, create a new one.
				if (userReport == null)
				{
					userReport = SupportMgr.CreateUserReport(userAccountId);
					disposableItems.Add(userReport);
					userReport.RecordedOn = DateTime.Today;
				}

				// Populate item properties.
				if (model.UserReport.ReportType != null)
					userReport.ReportType = model.GetReportType();
				if (model.UserReport.Title != null)
					userReport.Title = model.UserReport.Title;
				if (model.UserReport.Report != null)
					userReport.Report = model.UserReport.Report;

				// Store item.
				if (!SysId.IsValid(userReport.Id))
				{
					if (!SupportMgr.InsertUserReport(userReport, DbUpdateInfo))
					{
						SaLogger.Warn(fn + " Failed to insert user report: " + SupportMgr.ErrorStateMessage);
						return Json(responseData.SetMessage(messageTitle, Localiser["msg.error.item.insert.failed"]));
					}
				}
				else
				{
					if (!SupportMgr.UpdateUserReport(userReport, DbUpdateInfo))
					{
						SaLogger.Warn(fn + " Failed to update user report [Id:" + SysId.ToString(userReport.Id) + "]: " + SupportMgr.ErrorStateMessage);
						return Json(responseData.SetMessage(messageTitle, Localiser["msg.error.item.update.failed"]));
					}
				}

				// Construct response.
				PopulateUserReportResponseItemData(model, userReport, userAccount, responseData.Report);
				responseData.Success = true;
			}
			return Json(responseData);
		}

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