using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;
using System.Windows.Media.Imaging;
using InABox.Clients;
using InABox.Core;
using InABox.DynamicGrid;
using InABox.WPF;
using javax.sql.rowset;

namespace PRSDesktop
{
    public class GlobalTokenGrid : DynamicGrid<SecurityDescriptor>
    {
        private List<SecurityDescriptor>? _descriptors;
        private static readonly BitmapImage defaultdisabled = PRSDesktop.Resources.disabled.Fade(0.25F).AsBitmapImage();
        private static readonly BitmapImage defaulttick = PRSDesktop.Resources.tick.Fade(0.25F).AsBitmapImage();
        private static readonly BitmapImage disabled = PRSDesktop.Resources.disabled.AsBitmapImage();

        private static readonly BitmapImage tick = PRSDesktop.Resources.tick.AsBitmapImage();

        public GlobalTokenGrid()
        {
            GroupNames = new Dictionary<Guid, string>();
            UserNames = new Dictionary<Guid, string>();
            UserGroups = new Dictionary<Guid, Guid>();
            GroupID = Guid.Empty;

            Items = new List<SecurityTokenItem>();

            HiddenColumns.Add(x => x.Descriptor);
            HiddenColumns.Add(x => x.Default);

            HeaderHeight = 125;
        }

        protected override void Init()
        {
        }
        protected override void DoReconfigure(FluentList<DynamicGridOption> options)
        {
            options.AddRange(DynamicGridOption.FilterRows);
        }

        public Dictionary<Guid, string> GroupNames { get; }
        public Dictionary<Guid, string> UserNames { get; }
        public Dictionary<Guid, Guid> UserGroups { get; }

        public List<SecurityTokenItem> Items { get; }

        public Guid GroupID { get; set; }

        private const string ENABLED_TOKENS = "Enabled";
        private const string DISABLED_TOKENS = "Disabled";
        private const string OVERRIDDEN_TOKENS = "Overridden";
        private const string DEFAULT_TOKENS = "Default";

        private static readonly string[] ENABLED_FILTERS = new[] { ENABLED_TOKENS, DISABLED_TOKENS };
        private static readonly string[] OVERRIDDEN_FILTERS = new[] { OVERRIDDEN_TOKENS, DEFAULT_TOKENS };
        private static readonly string[] ALL_FILTERS = new[] { ENABLED_TOKENS, DISABLED_TOKENS, OVERRIDDEN_TOKENS, DEFAULT_TOKENS }; 

        protected override DynamicGridColumns LoadColumns()
        {
            var columns = new DynamicGridColumns
            {
                new DynamicGridColumn { ColumnName = "Group", Caption = "Group", Width = 150, Alignment = Alignment.MiddleCenter },
                new DynamicGridColumn { ColumnName = "Description", Caption = "Description", Width = 0, Alignment = Alignment.MiddleLeft },
                new DynamicGridColumn { ColumnName = "Category", Caption = "Applies To", Width = 200, Alignment = Alignment.MiddleCenter }
            };

            ActionColumns.Clear();

            if (GroupID == Guid.Empty)
            {
                ActionColumns.Add(
                    new DynamicImageColumn(
                        GlobalImage, 
                        r => r != null 
                            ? GlobalAction(new CoreRow[] { r }, TokenAction.Toggle)
                            : CreateGlobalMenu()
                    )
                    {
                        HeaderText = "Default",
                        Filters = ALL_FILTERS,
                        FilterRecord = (r,f) => GlobalFilter(r,f)
                    });
                
                foreach (var groupid in GroupNames.Keys)
                    ActionColumns.Add(
                        new DynamicImageColumn(
                            r => GroupImage(r, groupid),
                            r => r != null 
                                ? GroupAction(new CoreRow[] { r }, groupid, TokenAction.Toggle)
                                : CreateGroupMenu(groupid)
                        )
                        {
                            HeaderText = GroupNames[groupid],
                            Filters = ALL_FILTERS,
                            FilterRecord = (r,f) => GroupFilter(r,f,groupid)
                        }
                    );
            }
            else
            {
                ActionColumns.Add(
                    new DynamicImageColumn(
                        r => GroupImage(r, GroupID),
                        r => r != null 
                            ? GroupAction(new CoreRow[] { r }, GroupID, TokenAction.Toggle)
                            : CreateGroupMenu(GroupID)
                    )
                    {
                        HeaderText = GroupNames[GroupID],
                        Filters = ALL_FILTERS,
                        FilterRecord = (r,f) => GroupFilter(r,f, GroupID)
                    }
                );

                foreach (var userid in UserNames.Keys)
                    if (UserGroups[userid] == GroupID)
                        ActionColumns.Add(
                            new DynamicImageColumn(
                                r => UserImage(r, GroupID, userid),
                                r => r != null 
                                    ? UserAction(new CoreRow[] { r }, GroupID, userid, TokenAction.Toggle)
                                    : CreateUserMenu(GroupID, userid)
                            )
                            {
                                HeaderText = UserNames[userid],
                                Filters = ALL_FILTERS,
                                FilterRecord = (r,f) => UserFilter(r,f, GroupID, userid)
                            }
                        );
            }

            return columns;
        }

        private static bool MatchFilter(string[] filter, string[] test)
        {
            if ((filter == null) && (test == null))
                return true;
            if ((filter == null) || (test == null))
                return false;
            if (filter.Length != test.Length)
                return false;
            if (filter.Except(test).Any())
                return false;
            if (test.Except(filter).Any())
                return false;
            return true;
        }
        
        private bool GlobalFilter(CoreRow row, string[] filter)
        {
            if (MatchFilter(filter, ALL_FILTERS))
                return true;

            var descriptor = row.Get<SecurityDescriptor, String>(c => c.Descriptor);
            var globaldefault = row.Get<SecurityDescriptor, bool>(c => c.Default);
            
            if (!MatchFilter(filter, ENABLED_FILTERS))
            {
                bool isenabled = GetGlobalOrDefault(descriptor, globaldefault);
                var check = (filter.Contains(ENABLED_TOKENS) && isenabled) || (filter.Contains(DISABLED_TOKENS) && !isenabled);
                if (!check)
                    return false;
            }

            if (!MatchFilter(filter, OVERRIDDEN_FILTERS))
            {
                bool isoverridden = Items.Any(x => String.Equals(x.Descriptor, descriptor) && (x.Type == SecurityTokenType.Global));
                var check = (filter.Contains(OVERRIDDEN_TOKENS) && isoverridden) || (filter.Contains(DEFAULT_TOKENS) && !isoverridden);
                if (!check)
                    return false;
            }
            
            return true;
        }

        private bool GroupFilter(CoreRow row, string[] filter, Guid groupid)
        {
            if (MatchFilter(filter, ALL_FILTERS))
                return true;

            string descriptor = row.Get<SecurityDescriptor, String>(c => c.Descriptor);
            bool globaldefault = row.Get<SecurityDescriptor, bool>(c => c.Default);
            
            if (!MatchFilter(filter, ENABLED_FILTERS))
            {
                bool isenabled = GetGroupOrDefault(descriptor, groupid, globaldefault);
                var check = (filter.Contains(ENABLED_TOKENS) && isenabled) || (filter.Contains(DISABLED_TOKENS) && !isenabled);
                if (!check)
                    return false;
            }

            if (!MatchFilter(filter, OVERRIDDEN_FILTERS))
            {
                bool isoverridden = Items.Any(x => String.Equals(x.Descriptor, descriptor) && (x.Type == SecurityTokenType.Group));
                var check = (filter.Contains(OVERRIDDEN_TOKENS) && isoverridden) || (filter.Contains(DEFAULT_TOKENS) && !isoverridden);
                if (!check)
                    return false;
            }
            
            return true;
        }

        private bool UserFilter(CoreRow row, string[] filter, Guid groupid, Guid userid)
        {
            if (MatchFilter(filter, ALL_FILTERS))
                return true;

            var descriptor = row.Get<SecurityDescriptor, string>(c => c.Descriptor);
            var globaldefault = row.Get<SecurityDescriptor, bool>(c => c.Default);
            
            if (!MatchFilter(filter, ENABLED_FILTERS))
            {
                bool isenabled = GetUserOrDefault(descriptor, userid, groupid, globaldefault);
                var check = (filter.Contains(ENABLED_TOKENS) && isenabled) || (filter.Contains(DISABLED_TOKENS) && !isenabled);
                if (!check)
                    return false;
            }

            if (!MatchFilter(filter, OVERRIDDEN_FILTERS))
            {
                bool isoverridden = Items.Any(x => string.Equals(x.Descriptor, descriptor) && (x.Type == SecurityTokenType.User));
                var check = (filter.Contains(OVERRIDDEN_TOKENS) && isoverridden) || (filter.Contains(DEFAULT_TOKENS) && !isoverridden);
                if (!check)
                    return false;
            }
            
            return true;
        }

        public override SecurityDescriptor LoadItem(CoreRow row)
        {
            if(_descriptors is null)
            {
                throw new Exception("LoadItem() called before Reload()");
            }
            return _descriptors[row.Index];
        }

        private CoreTable? _table = null;
        
        protected override void Reload(Filters<SecurityDescriptor> criteria, Columns<SecurityDescriptor> columns,
            ref SortOrder<SecurityDescriptor>? sort,
            Action<CoreTable?, Exception?> action)
        {

            if (_table == null)
            {
                Progress.ShowModal("Scanning Tokens..", (progress) =>
                {
                    _table = new CoreTable();
                    foreach (var column in columns.Items)
                        _table.Columns.Add(new CoreColumn { ColumnName = column.ToString() });

                    if (_descriptors == null)
                    {
                        _descriptors = new List<SecurityDescriptor>();
                        var list = Security.Descriptors.Where(x => x.Visible).ToArray();
                        foreach (var descriptor in list)
                        {
                            progress.Report($"Loading Tokens ({(double)(_descriptors.Count+1) * 100.0D / (double)list.Length:F2}% complete)");
                            var _descriptor = new SecurityDescriptor
                            {
                                Category = descriptor.Category,
                                Group = descriptor.Type,
                                Descriptor = descriptor.Code,
                                Description = descriptor.Description,
                                Default = descriptor.Value,
                                IsGlobal = descriptor.HasScope(SecurityDescriptorScope.Global),
                                IsGroup = descriptor.HasScope(SecurityDescriptorScope.Group),
                                IsUser = descriptor.HasScope(SecurityDescriptorScope.User)
                            };

                            _descriptors.Add(_descriptor);
                            var row = _table.NewRow();
                            _table.LoadRow(row, _descriptor);
                            _table.Rows.Add(row);

                        }
                    }
                    
                });
            }

            action.Invoke(_table, null);
        }

        private bool GetGlobalOrDefault(string code, bool globaldefault)
        {
            var global = Items.FirstOrDefault(x => x.Type.Equals(SecurityTokenType.Global) && string.Equals(x.Descriptor, code));
            if (global != null)
                return global.Enabled;
            return globaldefault;
        }

        private bool GetGroupOrDefault(string code, Guid groupid, bool globaldefault)
        {
            var group = Items.FirstOrDefault(
                x => string.Equals(x.Descriptor, code) && x.Type.Equals(SecurityTokenType.Group) && Equals(x.ID, groupid));
            if (group != null)
                return group.Enabled;
            return GetGlobalOrDefault(code, globaldefault);
        }

        private bool GetUserOrDefault(string code, Guid userid, Guid groupid, bool globaldefault)
        {
            var user = Items.FirstOrDefault(x => string.Equals(x.Descriptor, code) && x.Type.Equals(SecurityTokenType.User) && Equals(x.ID, userid));
            if (user != null)
                return user.Enabled;
            return GetGroupOrDefault(code, groupid, globaldefault);
        }



        private BitmapImage? GlobalImage(CoreRow? row)
        {
            if (row == null)
                return null;
            var code = row.Get<SecurityDescriptor, string>(c => c.Descriptor);
            var item = Items.FirstOrDefault(x => string.Equals(x.Descriptor, code) && x.Type.Equals(SecurityTokenType.Global));
            if (item != null)
                return item.Enabled ? tick : disabled;
            return row.Get<SecurityDescriptor, bool>(c => c.Default) ? defaulttick : defaultdisabled;
        }

        private BitmapImage? GroupImage(CoreRow? row, Guid groupid)
        {
            if (row == null)
                return null;
            var code = row.Get<SecurityDescriptor, string>(c => c.Descriptor);
            var group = Items.FirstOrDefault(
                x => string.Equals(x.Descriptor, code) && x.Type.Equals(SecurityTokenType.Group) && Equals(x.ID, groupid));
            if (group != null)
                return group.Enabled ? tick : disabled;
            return GetGlobalOrDefault(code, row.Get<SecurityDescriptor, bool>(c => c.Default))
                ? defaulttick
                : defaultdisabled;
        }

        private BitmapImage? UserImage(CoreRow? row, Guid groupid, Guid userid)
        {
            if (row == null)
                return null;
            var code = row.Get<SecurityDescriptor, string>(c => c.Descriptor);
            var user = Items.FirstOrDefault(x => string.Equals(x.Descriptor, code) && x.Type.Equals(SecurityTokenType.User) && Equals(x.ID, userid));
            if (user != null)
                return user.Enabled ? tick : disabled;
            return GetGroupOrDefault(code, groupid, row.Get<SecurityDescriptor, bool>(c => c.Default))
                ? defaulttick
                : defaultdisabled;
        }

        private void ResetGlobals(IEnumerable<string> codes)
        {
            var globals = Items.Where(x => codes.Contains(x.Descriptor) && x.Type.Equals(SecurityTokenType.Global));
            if (!globals.Any())
                return;
            var globalupdates = globals.Select(x => new GlobalSecurityToken { ID = x.RecordID }).ToArray();
            new Client<GlobalSecurityToken>().Delete(globalupdates, "", (o, e) => { });
            Items.RemoveAll(x => globals.Contains(x));
        }

        private void ResetGroups(Guid groupid, IEnumerable<string> codes)
        {
            var groups = groupid == Guid.Empty
                ? Items.Where(x => codes.Contains(x.Descriptor) && x.Type.Equals(SecurityTokenType.Group))
                : Items.Where(x => codes.Contains(x.Descriptor) && x.Type.Equals(SecurityTokenType.Group) && Equals(groupid, x.ID));
            var groupupdates = groups.Select(x => new SecurityToken { ID = x.RecordID }).ToArray();
            new Client<SecurityToken>().Delete(groupupdates, "", (o, e) => { });
            Items.RemoveAll(x => groups.Contains(x));
        }

        private void ResetUsers(Guid groupid, IEnumerable<string> codes)
        {
            var users = groupid == Guid.Empty
                ? Items.Where(x => codes.Contains(x.Descriptor) && x.Type.Equals(SecurityTokenType.User))
                : Items.Where(x => codes.Contains(x.Descriptor) && x.Type.Equals(SecurityTokenType.User) && UserGroups[x.ID].Equals(groupid));
            var userupdates = users.Select(x => new UserSecurityToken { ID = x.RecordID }).ToArray();
            new Client<UserSecurityToken>().Delete(userupdates, "", (o, e) => { });
            Items.RemoveAll(x => users.Contains(x));
        }

        private void ResetUser(Guid userid, IEnumerable<string> codes)
        {
            var users = Items.Where(x => codes.Contains(x.Descriptor) && x.Type.Equals(SecurityTokenType.User) && Equals(userid, x.ID));
            var userupdates = users.Select(x => new UserSecurityToken { ID = x.RecordID }).ToArray();
            new Client<UserSecurityToken>().Delete(userupdates, "", (o, e) => { });
            Items.RemoveAll(x => users.Contains(x));
        }
        
        
        private enum TokenAction
        {
            Enable,
            Disable,
            Toggle,
            Reset
        }

        private readonly Dictionary<TokenAction, Tuple<String,String>> _tokennames = new()
        {
            { TokenAction.Enable, new("Enable", "Enabling") },
            { TokenAction.Disable, new("Disable", "Enabling")  },
            { TokenAction.Toggle, new("Toggle", "Enabling") },
            { TokenAction.Reset, new("Reset", "Enabling") },
        };        
        
        private bool CreateGlobalMenu()
        {
            var menu = new ContextMenu();
            menu.Items.Add(new MenuItem() { Header = "Enable All Tokens", Command = new Command((o) => GlobalAction(GetVisibleRows(), TokenAction.Enable)) });
            menu.Items.Add(new MenuItem() { Header = "Disable All Tokens", Command = new Command((o) => GlobalAction(GetVisibleRows(), TokenAction.Disable)) });
            menu.Items.Add(new Separator());
            menu.Items.Add(new MenuItem() { Header = "Reset All Tokens", Command = new Command((o) => GlobalAction(GetVisibleRows(), TokenAction.Reset)) });
            menu.IsOpen = true;
            return false;
        }
        
        private bool CreateGroupMenu(Guid groupid)
        {
            var menu = new ContextMenu();
            menu.Items.Add(new MenuItem() { Header = "Enable All Tokens", Command = new Command((o) => GroupAction(GetVisibleRows(), groupid, TokenAction.Enable)) });
            menu.Items.Add(new MenuItem() { Header = "Disable All Tokens", Command = new Command((o) => GroupAction(GetVisibleRows(), groupid, TokenAction.Disable)) });
            menu.Items.Add(new Separator());
            menu.Items.Add(new MenuItem() { Header = "Reset All Tokens", Command = new Command((o) => GroupAction(GetVisibleRows(), groupid, TokenAction.Reset)) });
            menu.IsOpen = true;
            return false;
        }
        
        private bool CreateUserMenu(Guid groupid, Guid userid)
        {
            var menu = new ContextMenu();
            menu.Items.Add(new MenuItem() { Header = "Enable All Tokens", Command = new Command((o) => UserAction(GetVisibleRows(), groupid, userid, TokenAction.Enable)) });
            menu.Items.Add(new MenuItem() { Header = "Disable All Tokens", Command = new Command((o) => UserAction(GetVisibleRows(), groupid, userid, TokenAction.Disable)) });
            menu.Items.Add(new Separator());
            menu.Items.Add(new MenuItem() { Header = "Reset All Tokens", Command = new Command((o) => UserAction(GetVisibleRows(), groupid, userid, TokenAction.Reset)) });
            menu.IsOpen = true;
            return false;
        }

        private bool GlobalAction(IList<CoreRow> rows, TokenAction action)
        {
            
            if (!rows.Any())
                return false;
            
            var descriptors = rows.Select(r =>r.Get<SecurityDescriptor, string>(c => c.Descriptor)).ToArray();
            var resetchildren = Items.Where(x => descriptors.Contains(x.Descriptor) && !x.Type.Equals(SecurityTokenType.Global)).Any();
            if (resetchildren)
            {
                var confirm = MessageBox.Show($"{_tokennames[action].Item1} Group and User Tokens as well?", $"{_tokennames[action].Item1} All",
                    MessageBoxButton.YesNoCancel);
                if (confirm == MessageBoxResult.Cancel)
                    return false;
                resetchildren = confirm == MessageBoxResult.Yes;
            }
            
            var resetusers = new List<string>();
            var resetgroups = new List<string>();
            var resetglobals = new List<string>();
            var updates = new List<GlobalSecurityToken>();
            
            Progress.ShowModal($"{_tokennames[action].Item2} Tokens", (progress) =>
            {


                int i = 1;
                foreach (var row in rows)
                {
                    progress.Report($"{_tokennames[action].Item2} Tokens ({(double)(i) * 100.0D / (double)rows.Count:F2}% complete)");
                    i++;
                    
                    string descriptor = row.Get<SecurityToken, String>(c => c.Descriptor);
                    bool defaultvalue = row.Get<SecurityDescriptor, bool>(c => c.Default);
                    bool desiredvalue = action switch
                    {
                        TokenAction.Enable => true,
                        TokenAction.Disable => false,
                        TokenAction.Reset => defaultvalue,
                        _ => !GetGlobalOrDefault(descriptor, defaultvalue)
                    };
                    var currentvalue = GetGlobalOrDefault(descriptor, row.Get<SecurityDescriptor, bool>(c => c.Default));

                    if (currentvalue != defaultvalue)
                        resetglobals.Add(descriptor);
                    
                    if (resetchildren)
                    {
                        resetgroups.Add(descriptor);
                        resetusers.Add(descriptor);
                    }
                    
                    if (desiredvalue != defaultvalue)
                    {
                        // ResetGlobals(new[] { descriptor });
                        //
                        // if (resetchildren)
                        // {
                        //     ResetGroups(Guid.Empty, new[] { descriptor });
                        //     ResetUsers(Guid.Empty, new[] { descriptor });
                        // }

                        if (currentvalue == defaultvalue)
                        {
                            var token = new GlobalSecurityToken
                            {
                                Descriptor = descriptor,
                                Enabled = !currentvalue
                            };
                            updates.Add(token);
                            // new Client<GlobalSecurityToken>().Save(token, "");
                            // var item = new SecurityTokenItem
                            // {
                            //     Type = SecurityTokenType.Global,
                            //     Descriptor = descriptor,
                            //     ID = Guid.Empty,
                            //     RecordID = token.ID,
                            //     Enabled = token.Enabled
                            // };
                            // Items.Add(item);

                        }
                    }
                }
                
                progress.Report("Clearing Old Tokens...");
                if (resetusers.Any())
                    ResetUsers(Guid.Empty,resetusers);
                if (resetgroups.Any())
                    ResetGroups(Guid.Empty, resetgroups);
                if (resetglobals.Any())
                    ResetGlobals(resetglobals);
                progress.Report("Creating new Tokens...");
                if (updates.Any())
                {
                    new Client<GlobalSecurityToken>().Save(updates, "");
                    Items.AddRange(updates.Select(x => new SecurityTokenItem()
                    {
                        Type = SecurityTokenType.Global,
                        Descriptor = x.Descriptor,
                        ID = Guid.Empty,
                        RecordID = x.ID,
                        Enabled = x.Enabled
                    }));
                }


            });
    
            Refresh(false, true);
            return false;
        }

        
        private bool GroupAction(IList<CoreRow> rows, Guid groupid, TokenAction action)
        {
            
            if (!rows.Any())
                return false;

            
            var descriptors = rows.Select(r =>r.Get<SecurityDescriptor, string>(c => c.Descriptor)).ToArray();
            var resetchildren = Items.Where(x => descriptors.Contains(x.Descriptor) && x.Type.Equals(SecurityTokenType.User) && UserGroups[x.ID].Equals(groupid)).Any();
            
            if (resetchildren)
            {
                var confirm = MessageBox.Show($"{_tokennames[action].Item1} User Tokens as well?", $"{_tokennames[action].Item1} All",
                    MessageBoxButton.YesNoCancel);
                if (confirm == MessageBoxResult.Cancel)
                    return false;
                resetchildren = confirm == MessageBoxResult.Yes;
            }
            
            var resetusers = new List<string>();
            var resetgroups = new List<string>();
            var updates = new List<SecurityToken>();
            
            Progress.ShowModal($"{_tokennames[action].Item2} Tokens", (progress) =>
            {
                int i = 1;
                foreach (var row in rows)
                {
                    
                    progress.Report($"{_tokennames[action].Item2} Tokens ({(double)(i) * 100.0D / (double)rows.Count:F2}% complete)");
                    i++;
                    
                    string descriptor = row.Get<SecurityDescriptor, String>(c => c.Descriptor);
                    bool globaldefault = row.Get<SecurityDescriptor, bool>(c => c.Default);
                    bool defaultvalue = GetGlobalOrDefault(descriptor, globaldefault);
                    var currentvalue = GetGroupOrDefault(descriptor, groupid, globaldefault);
                    
                    bool desiredvalue = action switch
                    {
                        TokenAction.Enable => true,
                        TokenAction.Disable => false,
                        TokenAction.Reset => GetGlobalOrDefault(descriptor, defaultvalue),
                        _ => !GetGroupOrDefault(descriptor, groupid, defaultvalue)
                    };
                    
                    if (currentvalue != defaultvalue)
                        resetgroups.Add(descriptor);
                    if (resetchildren)
                        resetusers.Add(descriptor);
                    
                    if (desiredvalue != defaultvalue)
                    { 
                        var token = new SecurityToken
                        {
                            Descriptor = descriptor,
                            Enabled = desiredvalue
                        };
                        token.Group.ID = groupid;
                        updates.Add(token);
                    }
                }
                
                progress.Report("Clearing Old Tokens...");
                if (resetusers.Any())
                    ResetUsers(groupid,resetusers);
                if (resetgroups.Any())
                    ResetGroups(groupid, resetgroups);
                progress.Report("Creating new Tokens...");
                if (updates.Any())
                {
                    new Client<SecurityToken>().Save(updates, "");
                    Items.AddRange(updates.Select(x => new SecurityTokenItem()
                    {
                        Type = SecurityTokenType.Group,
                        Descriptor = x.Descriptor,
                        ID = groupid,
                        RecordID = x.ID,
                        Enabled = x.Enabled
                    }));
                }
                
            });
            Refresh(false, true);
            return false;
        }

        private bool UserAction(IList<CoreRow> rows, Guid groupid, Guid userid, TokenAction action)
        {
            if (!rows.Any())
                return false;

            Progress.ShowModal($"{_tokennames[action].Item2} Tokens", (progress) =>
            {
                var resets = new List<string>();
                var updates = new List<UserSecurityToken>();

                int i = 1;
                foreach (var row in rows)
                {

                    progress.Report($"{_tokennames[action].Item2} Tokens ({(double)(i) * 100.0D / (double)rows.Count:F2}% complete)");
                    i++;
                    
                    var descriptor = row.Get<SecurityDescriptor, string>(c => c.Descriptor);
                    bool globaldefault = row.Get<SecurityDescriptor, bool>(c => c.Default);
                    bool defaultvalue = GetGroupOrDefault(descriptor, groupid, globaldefault);
                    var currentvalue = GetUserOrDefault(descriptor, userid, groupid, defaultvalue);

                    bool desiredvalue = action switch
                    {
                        TokenAction.Enable => true,
                        TokenAction.Disable => false,
                        TokenAction.Toggle => !currentvalue,
                        _ => GetGroupOrDefault(descriptor, groupid, globaldefault)
                    };

                    if (currentvalue != defaultvalue)
                        resets.Add(descriptor);

                    if (desiredvalue != defaultvalue)
                    {
                        var token = new UserSecurityToken
                        {
                            Descriptor = descriptor,
                            Enabled = desiredvalue
                        };
                        token.User.ID = userid;
                        updates.Add(token);
                    }

                }

                progress.Report("Clearing Old Tokens...");
                if (resets.Any())
                    ResetUser(userid, resets);
                progress.Report("Creating new Tokens...");
                if (updates.Any())
                {
                    new Client<UserSecurityToken>().Save(updates, "");
                    Items.AddRange(updates.Select(x => new SecurityTokenItem()
                    {
                        Type = SecurityTokenType.User,
                        Descriptor = x.Descriptor,
                        ID = userid,
                        RecordID = x.ID,
                        Enabled = x.Enabled
                    }));
                }

            });

            Refresh(false, true); 
            return false;
        }

        public override void DeleteItems(params CoreRow[] row)
        {
            // Not required or implemented
        }

        public override void SaveItem(SecurityDescriptor item)
        {
            // Not required or implemented
        }
    }
}