using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Interfaces;
using Microsoft.AspNetCore.Http;
using Oqtane.Enums;
using Oqtane.Infrastructure;
using Oqtane.Models;
using Oqtane.Repository;
using Oqtane.Security;
using Oqtane.Shared;
using SZUAbsolventenverein.Module.ReportSystem.Models;
using SZUAbsolventenverein.Module.ReportSystem.Permissions;
using SZUAbsolventenverein.Module.ReportSystem.Repository;

namespace SZUAbsolventenverein.Module.ReportSystem.Services
{
    public class ServerReportSystemReportingService : IReportSystemReportingService, IReportingHandler
    {
        private readonly IModuleDefinitionRepository _moduleDefinitionRepository;
        private readonly IReportingRepository _reportSystemRepository;
        private readonly IUserPermissions _userPermissions;
        private readonly ILogManager _logger;
        private readonly IHttpContextAccessor _accessor;
        private readonly Alias _alias;
        private readonly int _moduleDefinitionId;
        
        public ServerReportSystemReportingService(IModuleDefinitionRepository moduleDefinitionRepository, IReportingRepository reportSystemRepository, IUserPermissions userPermissions, ITenantManager tenantManager, ILogManager logger, IHttpContextAccessor accessor)
        {
            _moduleDefinitionRepository = moduleDefinitionRepository;
            _reportSystemRepository = reportSystemRepository;
            _userPermissions = userPermissions;
            _logger = logger;
            _accessor = accessor;
            _alias = tenantManager.GetAlias();

            ModuleDefinition md = moduleDefinitionRepository.GetModuleDefinitions(_alias.SiteId).ToList().Find(md => md.IsEnabled && md.Name == new ModuleInfo().ModuleDefinition.Name);
            if (md == null)
            {
                _logger.Log(LogLevel.Error, this, LogFunction.Security, "Reporting Module Not Found {ModuleName}", new ModuleInfo().ModuleDefinition.Name);
            }
            else
            {
                _moduleDefinitionId = md.ModuleDefinitionId;
            }
        }
        
        public Task<Reporting> CreateReportAsync(Reporting Reporting)
        {
            if (_userPermissions.IsAuthorized(_accessor.HttpContext.User, _alias.SiteId, EntityNames.ModuleDefinition, _moduleDefinitionId, PermissionNames.Utilize))
            {
                _logger.Log(LogLevel.Information, this, LogFunction.Update, "Reporting created {Reporting}", Reporting);
                return Task.FromResult(_reportSystemRepository.AddReporting(Reporting));
            }
            else
            {
                _logger.Log(LogLevel.Error, this, LogFunction.Security, "Unauthorized Reporting create attempt {Reporting}", Reporting);
                return null;
            }
        }
        
        public Task<List<Reporting>> GetReportsAsync(int ModuleId)
        {
            if (_userPermissions.IsAuthorized(_accessor.HttpContext.User, _alias.SiteId, EntityNames.Module, ModuleId, PermissionNames.View))
            {
                return Task.FromResult(_reportSystemRepository.GetReportings().ToList());
            }
            else
            {
                _logger.Log(LogLevel.Error, this, LogFunction.Security, "Unauthorized Reportings Get Attempt {ModuleId}", ModuleId);
                return null;
            }
        }

        public Task<Reporting> GetReportAsync(int ReportableId, int ModuleId)
        {
            if (_userPermissions.IsAuthorized(_accessor.HttpContext.User, _alias.SiteId, EntityNames.Module, ModuleId, PermissionNames.View))
            {
                return Task.FromResult(_reportSystemRepository.GetReporting(ReportableId));
            }
            else
            {
                _logger.Log(LogLevel.Error, this, LogFunction.Security, "Unauthorized Reporting Get Attempt {ModuleId} {ReportableId}", ModuleId, ReportableId);
                return null;
            }
        }

        public Task<Reporting> UpdateReport(Reporting Reporting)
        {
            if (_userPermissions.IsAuthorized(_accessor.HttpContext.User, _alias.SiteId, EntityNames.Module, Reporting.ReportingID, PermissionNames.Edit))
            {
                Reporting = _reportSystemRepository.UpdateReporting(Reporting);
                _logger.Log(LogLevel.Information, this, LogFunction.Update, "Reporting Updated {Reporting}", Reporting);
            }
            else
            {
                _logger.Log(LogLevel.Error, this, LogFunction.Security, "Unauthorized Reporting Update Attempt {Reporting}", Reporting);
                Reporting = null;
            }
            
            return Task.FromResult(Reporting);
        }

        public Task DeleteReportingAsync(int ReportingId, int ModuleId)
        {
            if (_userPermissions.IsAuthorized(_accessor.HttpContext.User, _alias.SiteId, EntityNames.Module, ModuleId, PermissionNames.Edit))
            {
                _reportSystemRepository.DeleteReporting(ReportingId);
                _logger.Log(LogLevel.Information, this, LogFunction.Delete, "Reporting Deleted {ReportingId}", ReportingId);
            }
            else
            {
                _logger.Log(LogLevel.Error, this, LogFunction.Security, "Unauthorized Reporting Delete Attempt {ReportingId} {ModuleId}", ReportingId, ModuleId);
            }
            return Task.CompletedTask;
        }

        public async void Report(IReportable reportable, string note)
        {
            // if (_userPermissions.IsAuthorized(_accessor.HttpContext.User, _alias.SiteId, EntityNames.Module, ModuleId, PermissionNames.Edit))
            {
                Reporting reporting = await CreateReportAsync(new Reporting {ModuleId = reportable.ModuleID, EntityId = reportable.EntityID, Note = note, Reason = "Default Reason"});
                if (reporting != null)
                {
                    _logger.Log(LogLevel.Information, this, LogFunction.Delete, "Reporting recieved {ReportingId}", reporting.ReportingID);
                }
            }
            // else
            {
                _logger.Log(LogLevel.Error, this, LogFunction.Security, "Unauthorized Reporting Delete Attempt {EntityId} {ModuleId}", reportable.EntityID, reportable);
            }
        }
    }
}