using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Logging;
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 Saxonite.Net.Core.Web.Base.App;
using Saxonite.Net.Core.Web.Online.Models;
using Saxonite.Net.Standard.Base.App;
using Saxonite.Net.Standard.Base.Bus;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace Saxonite.Net.Core.Web.Online.Controllers
{
	//=======================================================================
	// Online Organisation Controller.
	//=======================================================================
	public partial class OrganisationController : SaxController_Online
	{
		//-------------------------------------------------------------------
		// Construction.
		public OrganisationController(SaxLocaliser localiser, ILogger<HomeController> logger) :
			base(localiser, logger)
		{
		}

		//-------------------------------------------------------------------
		[HttpGet]
		public IActionResult Index()
		{
			// Validate session.
			if (!ValidUserSession)
				return RedirectToAction("", "");

			// No 'Index' view as yet - default to home page.
			return RedirectToAction("", "");
		}

		//-------------------------------------------------------------------
		[HttpGet]
		public IActionResult Members()
		{
			// Validate session.
			if (!ValidUserSession)
				return RedirectToAction("", "");

			// Model.
			Model_Organisation_Members model = new Model_Organisation_Members(Localiser);

			// Get a suitable organisation for the filter.
			SysId filterOrganisationId = SessionData_Online.Filter.OrganisationIdMember;
			String filterOrganisationCaption = SessionData_Online.Filter.OrganisationCaptionMember;
			OrganisationData organisationData = GetOrganisationForFilter(filterOrganisationId, filterOrganisationCaption, Sax.OrganisationRole.MemberAdmin);
			if (organisationData == null)
				return RedirectToAction("", "");

			// Make a note of the filter values.
			model.Filter.OrganisationId = model.EncryptId(organisationData.Id);
			model.Filter.OrganisationCaption = organisationData.Caption;
			SessionData_Online.Filter.OrganisationIdMember = organisationData.Id;
			SessionData_Online.Filter.OrganisationCaptionMember = organisationData.Caption;

			return View(model);
		}

		//-------------------------------------------------------------------
		[HttpGet]
		public IActionResult Events()
		{
			// Validate session.
			if (!ValidUserSession)
				return RedirectToAction("", "");

			// Model.
			Model_Organisation_Events model = new Model_Organisation_Events(Localiser);

			// Get a suitable organisation for the filter.
			SysId filterOrganisationId = SessionData_Online.Filter.OrganisationIdMember;
			String filterOrganisationCaption = SessionData_Online.Filter.OrganisationCaptionMember;
			OrganisationData organisationData = GetOrganisationForFilter(filterOrganisationId, filterOrganisationCaption, Sax.OrganisationRole.ScheduleAdmin);
			if (organisationData == null)
				return RedirectToAction("", "");

			// Make a note of the filter values.
			model.Filter.OrganisationId = model.EncryptId(organisationData.Id);
			model.Filter.OrganisationCaption = organisationData.Caption;
			SessionData_Online.Filter.OrganisationIdMember = organisationData.Id;
			SessionData_Online.Filter.OrganisationCaptionMember = organisationData.Caption;

			return View(model);
		}

		//-------------------------------------------------------------------
		[HttpGet]
		public IActionResult Opportunities()
		{
			// Validate session.
			if (!ValidUserSession)
				return RedirectToAction("", "");

			// Model.
			Model_Organisation_Opportunities model = new Model_Organisation_Opportunities(Localiser);

			// Get a suitable organisation for the filter.
			SysId filterOrganisationId = SessionData_Online.Filter.OrganisationIdMember;
			String filterOrganisationCaption = SessionData_Online.Filter.OrganisationCaptionMember;
			OrganisationData organisationData = GetOrganisationForFilter(filterOrganisationId, filterOrganisationCaption, Sax.OrganisationRole.OpportunityAdmin);
			if (organisationData == null)
				return RedirectToAction("", "");

			// Make a note of the filter values.
			model.Filter.OrganisationId = model.EncryptId(organisationData.Id);
			model.Filter.OrganisationCaption = organisationData.Caption;
			SessionData_Online.Filter.OrganisationIdMember = organisationData.Id;
			SessionData_Online.Filter.OrganisationCaptionMember = organisationData.Caption;

			return View(model);
		}

		//-------------------------------------------------------------------
		public class OrganisationData
		{
			public OrganisationData(SysId id) { Id = id; }
			public SysId Id { get; }
			public String Caption { get; set; }
		}
		private OrganisationData GetOrganisationForFilter(SysId filterOrganisationId, String filterOrganisationCaption, Sax.OrganisationRole organisationRole)
		{
			OrganisationData organisationData = null;

			// Roles (any) required for organisation list.
			List <Sax.OrganisationRole> requiredRoles = new List<Sax.OrganisationRole>() { Sax.OrganisationRole.Admin };
			if (organisationRole > 0)
				requiredRoles.Add(organisationRole);

			// Filter to identify suitable organisations that user is a member of and has the appropriate rights.
			SaxUserOrganisation.Params prmUserOrganisation = new SaxUserOrganisation.Params();
			prmUserOrganisation.UserAccountIdsIncluded.Add(SessionUserAccountId);
			prmUserOrganisation.OrganisationStatusCat = SaxOrganisation.StatusCat.ActiveOnly;
			prmUserOrganisation.OrganisationMembersOnly = true;
			prmUserOrganisation.OrganisationRolesAny.AddRange(requiredRoles);
			prmUserOrganisation.StatusCat = SaxUserOrganisation.StatusCat.ActiveOnly;

			// Restrict to specified Organisation.
			if (SysId.IsValid(filterOrganisationId))
			{
				// Verify that the specified organisation is valid for the filter conditions.
				prmUserOrganisation.OrganisationIdsIncluded.Add(filterOrganisationId);
				if (AccountMgr.GetUserOrganisationCount(prmUserOrganisation) < 1)
					// Specified organisation is not valid - remove restriction.
					prmUserOrganisation.OrganisationIdsIncluded.Clear();
			}

			// Pick the first valid Organisation.
			ColumnDfn colOrganisationId = AccountMgr.GetUserOrganisationColumnDfn(SaxUserOrganisation.Column.OrganisationId);
			ColumnDfn colOrganisationName = AccountMgr.GetUserOrganisationColumnDfn(SaxUserOrganisation.Column.Organisation_Name);
			prmUserOrganisation.SortColumns.Add(colOrganisationName);
			prmUserOrganisation.ResultsPaging.PageLength = 1;
			prmUserOrganisation.ResultsPaging.PageNo = 1;
			using (DbResultSet resultSet = AccountMgr.ExecuteUserOrganisationQuery(new List<ColumnDfn>() { colOrganisationId, colOrganisationName }, prmUserOrganisation))
			{
				if (resultSet != null && resultSet.HasRows && resultSet.NextRecord())
				{
					NamedValue.Map values = resultSet.GetRecordValues();
					SysId organisationId = new SysId(values.GetLong(colOrganisationId.DataName));
					if (SysId.IsValid(organisationId))
					{
						organisationData = new OrganisationData(organisationId)
						{
							Caption = values.GetString(colOrganisationName.DataName)
						};
					}
				}
			}
			return organisationData;
		}

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