prs/prs.server/Forms/ServerGrid.cs

using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.ServiceProcess;
using System.Threading;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media.Imaging;
using Comal.Classes;
using Comal.Stores;
using InABox.Client.IPC;
using InABox.Clients;
using InABox.Configuration;
using InABox.Core;
using InABox.Database;
using InABox.Database.SQLite;
using InABox.DynamicGrid;
using InABox.IPC;
using InABox.Rpc;
using InABox.Wpf.Editors;
using InABox.Wpf.Console;
using InABox.WPF;
using PRSClasses;
using PRSServer.Forms;
using PRSServer.Forms.DatabaseLicense;
using RestSharp;
using Method = RestSharp.Method;
using Console = InABox.Wpf.Console.Console;
using PRSServices;

namespace PRSServer;

class ServerStartupSettings : BaseObject, ILocalConfigurationSettings
{
    public List<string> StartServers { get; set; } = new();
}

public class ServerGrid : DynamicGrid<Server>
{
    private Task? _monitor;

    private ConcurrentBag<ServiceController> _services = new();
    
    private Button _channelButton;

    private Button _statusButton;

    private CancellationTokenSource cancel = new CancellationTokenSource();

    public ServerGrid()
    {
        ActionColumns.Add(new DynamicImageColumn(TypeImage) 
            { Position = DynamicActionColumnPosition.Start, ToolTip = TypeToolTip });
        
        ActionColumns.Add(new DynamicImageColumn(SecureImage)
            {  Position = DynamicActionColumnPosition.Start, ToolTip = SecureToolTip });
        
        ActionColumns.Add(new DynamicImageColumn(StateImage, StateAction)
            { Position = DynamicActionColumnPosition.End, ToolTip = StateToolTip });

        ActionColumns.Add(new DynamicMenuColumn(CreateServerMenu,ServerMenuStatus)
            { Position = DynamicActionColumnPosition.End, ToolTip = MenuToolTip });
        
        RowHeight = 40;
        FontSize = 14;

        _channelButton = AddButton("", Properties.Resources.autoupdate.AsBitmapImage(), "Change Update Channel", EditUpdateChannel_Click);
        _statusButton = AddButton("", Properties.Resources.secure.AsBitmapImage(), "Check Service Status", ShowServiceStatus);

    }

    protected override void Init()
    {
    }
    protected override void DoReconfigure(FluentList<DynamicGridOption> options)
    {
        options.AddRange(DynamicGridOption.AddRows, DynamicGridOption.EditRows, DynamicGridOption.DeleteRows, DynamicGridOption.ShowHelp);
    }

    private BitmapImage secureImage = Properties.Resources.secure.AsBitmapImage();
    private BitmapImage insecureImage = Properties.Resources.insecure.AsBitmapImage();
    private BitmapImage? SecureImage(CoreRow? row)
    {
        if(row is null)
        {
            return secureImage;
        }
        else
        {
            var key = row.Get<Server, string>(x => x.Key);
            if(_secureConnections.TryGetValue(key, out var secure))
            {
                return secure
                    ? secureImage
                    : insecureImage;
            }
            else
            {
                return null;
            }
        }
    }

    private FrameworkElement? SecureToolTip(DynamicActionColumn column, CoreRow? row)
    {
        if(row is null)
        {
            return column.TextToolTip("Connection Security");
        }
        else
        {
            var key = row.Get<Server, string>(x => x.Key);
            if (_secureConnections.TryGetValue(key, out var secure))
            {
                return secure
                    ? column.TextToolTip("Secure (HTTPS) Connection")
                    : column.TextToolTip("Insecure (HTTP) Connection");
            }
            else
            {
                return null;
            }
        }
    }

    private DynamicMenuStatus ServerMenuStatus(CoreRow arg)
    {
        if (arg == null)
            return DynamicMenuStatus.Hidden;
        var type = arg.Get<Server, ServerType>(x => x.Type);
        var service = GetService(arg.Get<Server, string>(c => c.Key));
        var running = service?.Status == ServiceControllerStatus.Running;
        if ((type == ServerType.Database) || (type == ServerType.Web) || (type == ServerType.Schedule))
        {
            return running
                ? DynamicMenuStatus.Enabled
                : DynamicMenuStatus.Disabled;
        }
        return running
            ? DynamicMenuStatus.Enabled
            : DynamicMenuStatus.Hidden;
    }

    private void CreateServerMenu(DynamicMenuColumn column, CoreRow? row)
    {
        if (row is null)
            return;

        var status = ServerMenuStatus(row);
        if (status == DynamicMenuStatus.Hidden)
            return;
        var type = row.Get<Server, ServerType>(x => x.Type);
        var key = row.Get<Server, String>(x => x.Key);

        column.AddItem(
            "View Console",
            Properties.Resources.target,
            (row) => StartConsole(row!, key),
            null,
            status == DynamicMenuStatus.Enabled && !_consoles.ContainsKey(key)
        );

        if (type.Equals(ServerType.Database))
        {
            column.AddSeparator();
            column.AddItem(
                "Custom Fields",
                Properties.Resources.service,
                (row) => EditCustomFields(row!), 
                null, 
                status == DynamicMenuStatus.Enabled
            );
            column.AddItem(
                "Database Scripts", 
                Properties.Resources.script, 
                (row) => EditDatabaseScripts(row!), 
                null, 
                status == DynamicMenuStatus.Enabled
            );
            column.AddSeparator();
            column.AddItem(
                "Update License", 
                Properties.Resources.key,
                (row) => UpdateDatabaseLicense(row!), 
                null, 
                status == DynamicMenuStatus.Enabled
            );
            column.AddSeparator();
            column.AddItem(
                "Manage Deletions", 
                Properties.Resources.delete,
                (row) => ManageDeletions(row!), 
                null, 
                status == DynamicMenuStatus.Enabled
            );
        }
        else if (type.Equals(ServerType.Web))
        {
            column.AddSeparator();
            column.AddItem(
                "Edit Templates", 
                Properties.Resources.script,
                (row) => EditWebTemplates(row!), 
                null, 
                status == DynamicMenuStatus.Enabled
            );
            column.AddItem(
                "Edit Styles", 
                Properties.Resources.css,
                (row) => EditWebStyles(row!), 
                null, 
                status == DynamicMenuStatus.Enabled
            );
            column.AddItem(
                "Edit Documents", 
                Properties.Resources.pdf,
                (row) => EditWebDocuments(row!), 
                null, 
                status == DynamicMenuStatus.Enabled
            );
            column.AddSeparator();
            column.AddItem(
                "PRS Mobile Settings",
                Properties.Resources.web,
                (row) => PRSMobileSettings(row!), 
                null, 
                status == DynamicMenuStatus.Enabled
            );
        }
        else if (type.Equals(ServerType.Schedule))
        {
            column.AddSeparator();
            column.AddItem(
                "Scheduled Scripts", 
                Properties.Resources.script,
                (row) => EditScheduledScripts(row!), 
                null, 
                status == DynamicMenuStatus.Enabled
            );
        }


    }

    private ServiceController? GetService(string key)
    {
        return _services.FirstOrDefault(x => string.Equals(x.ServiceName, key));
    }

    protected override void ShowHelp(string slug)
    {
        base.ShowHelp("Server_Configuration");
    }

    public void BeforeUpdate()
    {
        var sections = PRSService.GetConfiguration().LoadAll();
        RefreshServices(sections);

        var closed = new List<string>();
        foreach (var service in _services)
        {
            if(service.Status == ServiceControllerStatus.Running)
            {
                service.Stop();
                closed.Add(service.ServiceName);
            }
        }

        var config = PRSService.GetConfiguration<ServerStartupSettings>();
        var startupSettings = config.Load();
        startupSettings.StartServers = closed;
        config.Save(startupSettings);
    }

    #region Grid Handling

    private void RefreshServices(Dictionary<string, ServerSettings> sections)
    {
        Interlocked.Exchange(
            ref _services,
            new ConcurrentBag<ServiceController>(
                ServiceController.GetServices().Where(x => sections.ContainsKey(x.ServiceName))
            )
        );
    }

    private Dictionary<String, ServiceControllerStatus> _serviceStatuses = new Dictionary<string, ServiceControllerStatus>();
    private Dictionary<string, bool> _secureConnections = new Dictionary<string, bool>();
    private Dictionary<String,RpcClientPipeTransport> _pipemonitors = new Dictionary<string, RpcClientPipeTransport>();
    private Dictionary<String,HttpClient> _webmonitors = new Dictionary<string, HttpClient>();

    protected override void Reload(Filters<Server> criteria, Columns<Server> columns, ref SortOrder<Server>? sort,
        Action<CoreTable?, Exception?> action)
    {

        var table = new CoreTable();
        table.LoadColumns(typeof(Server));

        var sections = PRSService.GetConfiguration().LoadAll();

        RefreshServices(sections);

        var startupConfig = PRSService.GetConfiguration<ServerStartupSettings>();
        var startupSettings = startupConfig.Load();
        foreach (var startup in startupSettings.StartServers)
        {
            try
            {
                _services.FirstOrDefault(x => x.ServiceName == startup)?.Start();
            }
            catch(Exception e)
            {
                Logger.Send(LogType.Error, "", $"Could not start {startup}: {CoreUtils.FormatException(e)}");
            }
        }
        startupSettings.StartServers.Clear();
        startupConfig.Save(startupSettings);

        foreach (var section in sections.OrderBy(x => x.Value.Type))
        {
            var server = section.Value.CreateServer(section.Key);
            var service = _services.FirstOrDefault(x => string.Equals(x.ServiceName, section.Key));
            var row = table.NewRow();
            table.LoadRow(row, server);
            table.Rows.Add(row);
        }
        
        action(table, null);

        _monitor ??= Task.Run(
            () =>
            {
                while (!cancel.Token.IsCancellationRequested)
                {
                    bool testcertificates = false;
                    var certrow = table.Rows.FirstOrDefault(x => x.Get<Server, ServerType>(x => x.Type) == ServerType.Certificate);
                    if (certrow != null)
                    {
                        var key = certrow.Get<Server, string>(x => x.Key);
                        var certservice = GetService(key);
                        if(certservice is not null)
                        {
                            certservice.Refresh();
                            if (certservice.Status == ServiceControllerStatus.Running)
                                testcertificates = true;
                        }
                    }

                    foreach (var row in table.Rows)
                    {
                        bool bRefresh = false;
                        var key = row.Get<Server, string>(x => x.Key);
                        
                        var service = GetService(key);
                        if(service is null)
                        {
                            continue;
                        }

                        _serviceStatuses.TryGetValue(key, out var oldstatus);
                        service.Refresh();
                        _serviceStatuses[key] = service.Status;
                        if (_serviceStatuses[key] != oldstatus)
                            bRefresh = true;

                        if (testcertificates && (_serviceStatuses[key] == ServiceControllerStatus.Running))
                        {
                            var type = row.Get<Server, ServerType>(x => x.Type);
                            if (type == ServerType.Database)
                            {
                                _secureConnections.TryGetValue(key, out var oldsecure);
                                if (!_pipemonitors.TryGetValue(key, out var client))
                                {
                                    client = new RpcClientPipeTransport(DatabaseServerProperties.GetPipeName(key, true));
                                    client.Connect();
                                    _pipemonitors[key] = client;
                                }
                                
                                var info = client.IsConnected()
                                    ? client.Send<RpcInfoCommand, RpcInfoParameters, RpcInfoResult>(new RpcInfoParameters()).Info
                                    : null;
                                _secureConnections[key] = info?.IsHTTPS ?? false;
                                
                                bRefresh = bRefresh || (_secureConnections[key] != oldsecure);
                            }
                            else if (type == ServerType.Web)
                            {
                                var props = row.ToObject<Server>().Properties as WebServerProperties;
                                _secureConnections.TryGetValue(key, out var oldsecure);
                                if (!_webmonitors.TryGetValue(key, out var client))
                                {
                                    client = new HttpClient { BaseAddress = new Uri($"https://127.0.0.1:{props.ListenPort}") };
                                    _webmonitors[key] = client;
                                }
                                try
                                {
                                    client.GetAsync("/").Wait();
                                    _secureConnections[key] = true;
                                }
                                catch (Exception e)
                                {
                                    _secureConnections[key] = false;
                                }         
                                bRefresh = bRefresh || (_secureConnections[key] != oldsecure);
                            }
                        }
                        else
                        {
                            bRefresh = bRefresh || _secureConnections.ContainsKey(key);
                            _secureConnections.Remove(key);
                        }
                        if (bRefresh)
                            Dispatcher.Invoke(() =>
                            {                                    
                                if (testcertificates && (ActionColumns[1].Position != DynamicActionColumnPosition.Start))
                                    ActionColumns[1].Position = DynamicActionColumnPosition.Start;
                                else if (!testcertificates && (ActionColumns[1].Position != DynamicActionColumnPosition.Hidden))
                                    ActionColumns[1].Position = DynamicActionColumnPosition.Hidden;
                                Refresh(true, false);
                                InvalidateRow(row);
                            });
                    }
                    
                    Task.Delay(TimeSpan.FromSeconds(1)).Wait();
                }
            },
            cancel.Token
        );
    }
    
    protected override Server LoadItem(CoreRow row)
    {
        var key = row.Get<Server, string>(x => x.Key);
        var settings = PRSService.GetConfiguration(key).Load();
        return settings.CreateServer(key);
    }

    private string CreateKey(ServerType type)
    {
        var services = ServiceController.GetServices();
        var key = string.Format("PRS{0}", type.ToString());
        var i = 1;
        while (services.Any(x => string.Equals(key, x.ServiceName)))
            key = string.Format("PRS{0}_{1}", type.ToString(), i++);
        return key;
    }

    private void CreateMenu(ContextMenu parent, string header, ServerType server, Type properties)
    {
        var menu = new MenuItem();
        menu.Header = header;
        menu.Tag = properties;
        menu.Icon = new Image() { Source = _typeimages[server] };
        menu.IsCheckable = false;
        menu.Click += (o, e) =>
        {
            var itemtype = ((o as MenuItem)?.Tag as Type)!;
            var props = (Activator.CreateInstance(itemtype) as ServerProperties)!;
            if (EditProperties(properties, props, true))
            {
                var server = CreateItem();
                server.Key = CreateKey(props.Type());
                server.Type = props.Type();
                server.Properties = props;
                SaveItem(server);
                Refresh(false, true);
            }
        };
        parent.Items.Add(menu);
    }

    protected override void DoAdd(bool OpenEditorOnDirectEdit = false)
    {
        var menu = new ContextMenu();
        CreateMenu(menu, "Database", ServerType.Database, typeof(DatabaseServerProperties));
        CreateMenu(menu, "GPS Connector", ServerType.GPS, typeof(GPSServerProperties));
        if (!Data.Rows.Any(r => r.Get<Server, ServerType>(c => c.Type) == ServerType.AutoDiscovery))
            CreateMenu(menu, "Auto Discovery", ServerType.AutoDiscovery, typeof(AutoDiscoveryServerProperties));
        CreateMenu(menu, "Scheduler", ServerType.Schedule, typeof(ScheduleServerProperties));
        CreateMenu(menu, "Web Service", ServerType.Web, typeof(WebServerProperties));
        if (!Data.Rows.Any(r => r.Get<Server, ServerType>(c => c.Type) == ServerType.Certificate))
            CreateMenu(menu, "HTTPS Certificate Engine", ServerType.Certificate, typeof(CertificateEngineProperties));
        menu.IsOpen = true;
    }

    protected override void DoEdit()
    {
        if (!SelectedRows.Any())
            return;

        var server = LoadItem(SelectedRows.First());

        var service = GetService(server.Key);
        var enabled = service == null || service.Status == ServiceControllerStatus.Stopped;

        if (EditProperties(server.Properties.GetType(), server.Properties, enabled))
        {
            server.Name = server.Properties.Name;
            SaveItem(server);
            Refresh(false, true);
        }
    }

    public override void SaveItem(Server item)
    {
        var settings = new ServerSettings();
        settings.Type = item.Type;
        settings.Properties = Serialization.Serialize(item.Properties, false);

        PRSService.GetConfiguration(item.Key).Save(settings);

        ReconfigureService(item);
    }

    private bool isServiceChanged(Server server, ServiceController? service, string newDisplayName)
    {
        return newDisplayName != service?.DisplayName || (server.Properties.HasOriginalValue(x => x.Username) && server.Properties.GetOriginalValue(x => x.Username) != server.Properties.Username);
    }

    protected override bool CanDeleteItems(params CoreRow[] rows)
    {
        var bOK = true;
        foreach (var row in rows)
        {
            var service = GetService(row.Get<Server, string>(x => x.Key));
            if (service != null && service.Status != ServiceControllerStatus.Stopped)
                bOK = false;
        }

        return bOK;
    }

    protected override void DeleteItems(params CoreRow[] rows)
    {
        foreach (var row in rows)
        {
            var key = row.Get<Server, string>(x => x.Key);

            Interlocked.Exchange(
                ref _services,
                new ConcurrentBag<ServiceController>(
                    _services.Where(x => !string.Equals(x.ServiceName, key))
                )
            );

            PRSService.GetConfiguration(key).Delete();

            var serverType = row.Get<Server, ServerType>(x => x.Type);
            if (serverType == ServerType.Certificate)
            {
                if (File.Exists(CertificateEngine.CertificateFile))
                {
                    File.Delete(CertificateEngine.CertificateFile);
                }
            }

            PRSServiceInstaller.UninstallService(key);
        }
    }

    protected override void DefineLookups(ILookupEditorControl sender, Server[] items, bool async = true)
    {
        if(sender.EditorDefinition is ComboLookupEditor lookup && lookup.Type == typeof(DatabaseServerLookupGenerator))
        {
            base.DefineLookups(sender, Data.Rows.Select(x => x.ToObject<Server>()).ToArray());
        }
        else
        {
            base.DefineLookups(sender, items, async);
        }
    }

    #endregion

    #region Server Configuration

    private bool EditUpdateChannel_Click(Button arg1, CoreRow[] arg2)
    {
        var settings = new LocalConfiguration<AutoUpdateSettings>().Load();
        var editable = settings.ToEditable();
        var buttons = new DynamicEditorButtons()
        {
            new DynamicEditorButton(
                "",
                Properties.Resources.help.AsBitmapImage(),
                null,
                (o, e) => base.ShowHelp("Automatic_Updates"))

        };
        var propertyEditor = new DynamicEditorForm(typeof(EditableAutoUpdateSettings), null, buttons);
        propertyEditor.OnDefineEditor += PropertyEditor_OnDefineEditor;
        propertyEditor.OnDefineLookups += sender => DefineLookups(sender, new Server[] { });
        propertyEditor.Items = new BaseObject[] { editable };

        if (propertyEditor.ShowDialog() == true)
        {
            settings.FromEditable(editable);
            new LocalConfiguration<AutoUpdateSettings>().Save(settings);
        }

        return false;
    }

    private BaseEditor? PropertyEditor_OnDefineEditor(object item, DynamicGridColumn column)
    {
        if (string.Equals(column.ColumnName, "Elevated"))
            return new NullEditor();

        var result = GetEditor(item, column);
        if (result != null)
            result = result.CloneEditor();
        return result;
    }

    private void ReconfigureService(Server item)
    {
        var service = GetService(item.Key);
        var newDisplayName = "PRS - " + item.Properties.Name;
        string? username = item.Properties.Username;

        if (!isServiceChanged(item, service, newDisplayName)) return;

        string? password = null;
        if (!string.IsNullOrWhiteSpace(username))
        {
            var passwordEditor = new PasswordDialog(string.Format("Enter password for {0}", username));
            if(passwordEditor.ShowDialog() == true)
            {
                password = passwordEditor.Password;
            }
            else
            {
                password = null;
            }
        }
        else
        {
            username = null;
        }

        if (service == null)
            try
            {
                using (new WaitCursor())
                {
                    PRSServiceInstaller.InstallService(
                        item.Key,
                        item.Properties.Name,
                        newDisplayName,
                        username,
                        password
                    );
                }
            }
            catch (Exception e)
            {
                MessageBox.Show(string.Format("Error Installing {0}: {1}", item.Key, e.Message));
            }
        else
            try
            {
                using (new WaitCursor())
                {
                    PRSServiceInstaller.ChangeService(
                        item.Key,
                        item.Properties.Name,
                        newDisplayName,
                        username,
                        password
                    );
                }
            }
            catch (Exception e)
            {
                MessageBox.Show(string.Format("Error Configuring {0}: {1}", item.Key, e.Message));
            }
    }

    public bool EditProperties(Type type, ServerProperties item, bool enabled)
    {
        var pages = new DynamicEditorPages();

        if (type == typeof(DatabaseServerProperties))
        {
            pages.Add(new SMSProviderGrid());
        }

        var buttons = new DynamicEditorButtons();
        buttons.Add(
            "",
            Properties.Resources.help.AsBitmapImage(),
            item,
            (f, i) =>
            {
                Process.Start(new ProcessStartInfo("https://prsdigital.com.au/wiki/index.php/" + type.Name.SplitCamelCase().Replace(" ", "_"))
                    { UseShellExecute = true });
            }
        );
        var propertyEditor = new DynamicEditorForm(type, pages, buttons);

        if(type == typeof(DatabaseServerProperties))
        {
            propertyEditor.OnSaveItem += (o, e) =>
            {
                propertyEditor.UnloadEditorPages(false);
                propertyEditor.UnloadEditorPages(true);
            };
        }

        propertyEditor.ReadOnly = !enabled;

        propertyEditor.OnDefineLookups += sender => DefineLookups(sender, new Server[] { });
        propertyEditor.Items = new BaseObject[] { item };

        return propertyEditor.ShowDialog() == true;
    }

    #endregion

    #region Service Start / Stop Actions

    private readonly Dictionary<int, BitmapImage> _stateimages = new()
    {
        { 0, Properties.Resources.warning.AsBitmapImage() },
        { (int)ServiceControllerStatus.Stopped, Properties.Resources.pause.AsBitmapImage() },
        { (int)ServiceControllerStatus.StartPending, Properties.Resources.working.AsBitmapImage() },
        { (int)ServiceControllerStatus.StopPending, Properties.Resources.working.AsBitmapImage() },
        { (int)ServiceControllerStatus.Running, Properties.Resources.tick.AsBitmapImage() },
        { (int)ServiceControllerStatus.ContinuePending, Properties.Resources.working.AsBitmapImage() },
        { (int)ServiceControllerStatus.PausePending, Properties.Resources.working.AsBitmapImage() },
        { (int)ServiceControllerStatus.Paused, Properties.Resources.pause.AsBitmapImage() }
    };

    private BitmapImage StateImage(CoreRow? arg)
    {
        if (arg == null)
            return Properties.Resources.tick.AsBitmapImage();
        var key = arg.Get<Server, string>(c => c.Key);
        var service = GetService(key);
        int state = service != null ? (int)service.Status : 0; 
        return _stateimages[state];
    }

    private FrameworkElement? StateToolTip(DynamicActionColumn arg1, CoreRow? arg2)
    {
        if (arg2 == null)
            return null;
        var service = GetService(arg2.Get<Server, string>(c => c.Key));
        return arg1.TextToolTip(service != null ? "Current State: " + service.Status : "Not Installed");
    }
    
    private FrameworkElement? MenuToolTip(DynamicActionColumn arg1, CoreRow? arg2)
    {
        return arg2 != null ? arg1.TextToolTip("Server Options") : null;
    }

    private bool StateAction(CoreRow? arg)
    {
        if (arg == null)
            return false;
        var key = arg.Get<Server, string>(c => c.Key);
        var service = GetService(arg.Get<Server, string>(c => c.Key));
        if (service != null)
        {
            Task? task;
            if (service.Status == ServiceControllerStatus.Running)
            {
                task = Task.Run(
                    () =>
                    {
                        service.Stop();
                        Dispatcher.Invoke(()=> Refresh(false, false));
                    });
                //StopConsole(key);
            }
            else if (service.Status == ServiceControllerStatus.Stopped)
            {
                task = Task.Run(
                    () => 
                    {
                        service.Start();
                        Dispatcher.Invoke(()=> Refresh(false, false));
                    });
                StartConsole(arg,key);
            }
            else if (service.Status == ServiceControllerStatus.Paused)
            {
                task = Task.Run(() =>
                {
                    service.Continue();
                    Dispatcher.Invoke(()=> Refresh(false, false));
                });
            }
            else
            {
                MessageBox.Show(string.Format("Invalid Service State ({0})", service.Status.ToString()));
                return false;
            }
            task?.ContinueWith((e) =>
            {
                if (e.Exception?.InnerException is { } inner)
                {
                    if(inner.InnerException != null)
                    {
                        MessageBox.Show(String.Format("Error while running service:\n{0}", inner.InnerException.Message));
                    }
                    else
                    {
                        MessageBox.Show(String.Format("Error while running service:\n{0}", inner.Message));
                    }
                    PRSServiceInstaller.UninstallService(arg.Get<Server, string>(x => x.Key));
                    Refresh(false, true);
                }
            }, TaskScheduler.FromCurrentSynchronizationContext());

            return true;
        }

        MessageBox.Show("Cannot find Service - is it installed?");
        return false;
    }

    public void StopAll()
    {
        foreach (var service in _services.ToArray())
            if (service.Status == ServiceControllerStatus.Running)
                Task.Run(() => { service.Stop(); });
    }

    #endregion

    #region Server Type Images

    private readonly Dictionary<ServerType, BitmapImage> _typeimages = new()
    {
        { ServerType.Database, Properties.Resources.database.AsBitmapImage() },
        { ServerType.GPS, Properties.Resources.gps.AsBitmapImage() },
        { ServerType.AutoDiscovery, Properties.Resources.autodiscover.AsBitmapImage() },
        { ServerType.Schedule, Properties.Resources.schedule.AsBitmapImage() },
        { ServerType.Web, Properties.Resources.web.AsBitmapImage() },
        { ServerType.Certificate, Properties.Resources.certificate.AsBitmapImage() }
    };

    private BitmapImage TypeImage(CoreRow? arg)
    {
        if (arg == null)
            return Properties.Resources.help.AsBitmapImage();
        var type = arg.Get<Server, ServerType>(c => c.Type);
        return _typeimages[type];
    }
    
    private FrameworkElement? TypeToolTip(DynamicActionColumn arg1, CoreRow? arg2)
    {
        if (arg2 == null)
            return null;
        return arg1.TextToolTip(string.Format("{0} Service\nName: {1}",
            arg2.Get<Server, ServerType>(c => c.Type).ToString(),
            arg2.Get<Server, string>(c => c.Key)
        ));
    }

    #endregion

    #region Console Functions

    private BitmapImage? ConsoleImage(CoreRow? arg)
    {
        if (arg == null)
            return Properties.Resources.target.AsBitmapImage();
        var service = GetService(arg.Get<Server, string>(c => c.Key));
        var state = service != null ? (int)service.Status : 0;
        if (state == (int)ServiceControllerStatus.StartPending || state == (int)ServiceControllerStatus.Running)
            return Properties.Resources.target.AsBitmapImage();
        return null;
    }

    private bool ConsoleAction(CoreRow? arg)
    {
        if (arg == null)
            return false;
        var key = arg.Get<Server, string>(c => c.Key);
        var service = GetService(key);
        var state = service != null ? (int)service.Status : 0;
        if (state == (int)ServiceControllerStatus.StartPending || state == (int)ServiceControllerStatus.Running)
            StartConsole(arg, key);

        return false;
    }

    private Dictionary<String, Tuple<ServerConsole, int>> _consoles = new Dictionary<string, Tuple<ServerConsole, int>>();

    private void StartConsole(CoreRow arg, string key)
    {
        if (_consoles.ContainsKey(key))
            return;
        
        var name = arg.Get<Server, string>(c => c.Name);
        var console = new ServerConsole(key, $"{key} - {name}");
        var window = Window.GetWindow(this);

        int i = 0;
        while (_consoles.Any(x => x.Value.Item2 == i))
            i++;
        
        _consoles[key] = new Tuple<ServerConsole, int>(console, i);
        
        console.Top = window.Top + (i * 50);
        console.Left = window.Left + window.Width + 2 + (i*50);
        console.Height = window.Height;
        console.Closing += (o, e) =>
        {
            var c = o as ServerConsole;
            if (_consoles.ContainsKey(c.ServiceName))
                _consoles.Remove(c.ServiceName);
        };
        console.Show();
        
    }

    private void StopConsole(String key)
    {
        if (!_consoles.ContainsKey(key))
            return;
        var console = _consoles[key].Item1;
        console.Close();
    }

    #endregion

    #region Individual Server Buttons

    // Check if a database server is running at the given url and port
    private bool IsDatabaseServerRunning(string url, int port)
    {
        var uri = new Uri(string.Format("{0}:{1}", url, port));
        var cli = new RestClient(uri);
        var req = new RestRequest("/classes", Method.Get) { Timeout = 20000 };

        try
        {
            var res = cli.Execute(req);
            if (res.StatusCode != HttpStatusCode.OK || res.ErrorException != null)
                return false;
            return true;
        }
        catch (Exception e)
        {
        }

        return false;
    }

    // The following variables keep track of whether a database is currently being used, since if two people try to access two different databases,
    // terrible things will ensue.
    private int currentServerUsers;
    private string? currentServerURL;
    private int? currentServerPort;

    /// <summary>
    ///     Configures a server for the duration of an action
    /// </summary>
    /// <typeparam name="TProperties"></typeparam>
    /// <param name="row"></param>
    /// <param name="hostaddress"></param>
    /// <param name="portnumber"></param>
    /// <param name="action"></param>
    /// <param name="blocking">
    ///     If blocking is set to false, then currentServerUsers must be decreased by one manually once the
    ///     task finishes
    /// </param>
    private void ConfigureServer<TProperties>(
        CoreRow row,
        Func<TProperties, string> hostaddress,
        Func<TProperties, int> portnumber,
        Action action,
        bool blocking = true
    ) where TProperties : ServerProperties
    {
        try
        {
            if (row == null)
                throw new Exception("No Row Selected!");

            var server = LoadItem(row);
            if (server == null)
                throw new Exception("Unable to load Server!");

            var props = server.Properties as TProperties;
            if (props == null)
                throw new Exception("Unable to Load Properties!");

            var url = hostaddress(props);
            var port = portnumber(props);

            using (new WaitCursor())
            {
                if (!IsDatabaseServerRunning(url, port))
                    throw new Exception("Database Server is not available!");
            }

            if (action != null)
            {
                if (currentServerUsers == 0)
                {
                    if (currentServerURL != url || currentServerPort != port)
                    {
                        ConfigurationCache.ClearAll(ConfigurationCacheType.Global);
                        ConfigurationCache.ClearAll(ConfigurationCacheType.User);
                    }

                    currentServerURL = url;
                    currentServerPort = port;
                    currentServerName = null;
                    ClientFactory.SetClientType(typeof(RestClient<>), Platform.Server, CoreUtils.GetVersion(), url, port, true);

                    // override the need to provide credentials when configuring the database
                    ClientFactory.SetBypass();
                }
                else
                {
                    if (url != currentServerURL || port != currentServerPort)
                        throw new Exception(string.Format("A different Database Server ({0}:{1}) is currently in use!", currentServerURL,
                            currentServerPort));
                }

                currentServerUsers++;
                action();
                if (blocking) currentServerUsers--;
            }
        }
        catch (Exception e)
        {
            Logger.Send(LogType.Error, "", CoreUtils.FormatException(e));
            MessageBox.Show(e.Message);
        }
    }

    private string? currentServerName;
    private void ConfigureIPCServer<TProperties>(
        CoreRow row,
        Func<TProperties, string> hostPipeName,
        Action action,
        bool blocking = true
    ) where TProperties : ServerProperties
    {
        try
        {
            if (row == null)
                throw new Exception("No Row Selected!");

            var server = LoadItem(row);
            if (server == null)
                throw new Exception("Unable to load Server!");

            var props = server.Properties as TProperties;
            if (props == null)
                throw new Exception("Unable to Load Properties!");

            var pipeName = DatabaseServerProperties.GetPipeName(hostPipeName(props), false);

            if (action != null)
            {
                if (currentServerUsers == 0)
                {
                    if (currentServerName != pipeName)
                    {
                        ConfigurationCache.ClearAll(ConfigurationCacheType.Global);
                        ConfigurationCache.ClearAll(ConfigurationCacheType.User);
                    }

                    currentServerPort = null;
                    currentServerURL = null;
                    currentServerName = pipeName;
                    ClientFactory.SetClientType(typeof(IPCClient<>), Platform.Server, CoreUtils.GetVersion(), pipeName);
                    using (new WaitCursor())
                    {
                        if (!Client.Ping())
                        {
                            ClientFactory.ClearClientType();
                            throw new Exception("Database Server is not available!");
                        }
                    }

                    // override the need to provide credentials when configuring the database
                    ClientFactory.SetBypass();
                }
                else
                {
                    if (pipeName != currentServerName)
                        throw new Exception(string.Format("A different Database Server ({0}) is currently in use!", currentServerName));
                }

                currentServerUsers++;
                try
                {
                    action();
                }
                finally
                {
                    if (blocking) currentServerUsers--;
                }
            }
        }
        catch (Exception e)
        {
            Logger.Send(LogType.Error, "", CoreUtils.FormatException(e));
            MessageBox.Show(e.Message);
        }
    }

    private void ConfigureLocalDatabase(
        CoreRow row,
        Action action
    )
    {
        try
        {
            if (row == null)
                throw new Exception("No Row Selected!");

            var server = LoadItem(row) ?? throw new Exception("Unable to load Server!");
            if (server.Properties is not DatabaseServerProperties properties)
                throw new Exception("Unable to Load Properties!");

            if (!DbFactory.IsProviderSet || DbFactory.Provider is not SQLiteProvider sql || sql.URL != properties.FileName)
            {
                ClientFactory.SetClientType(typeof(LocalClient<>), Platform.Server, CoreUtils.GetVersion());
                Progress.ShowModal("Configuring database", (progress) =>
                {
                    DbFactory.Stores = CoreUtils.TypeList(
                        AppDomain.CurrentDomain.GetAssemblies(),
                        myType =>
                            myType.IsClass
                            && !myType.IsAbstract
                            && !myType.IsGenericType
                            && myType.GetInterfaces().Contains(typeof(IStore))
                    ).ToArray();

                    DbFactory.Provider = new SQLiteProvider(properties.FileName);
                    DbFactory.Start();

                    StoreUtils.GoogleAPIKey = properties.GoogleAPIKey;
                    PurchaseOrder.PONumberPrefix = properties.PurchaseOrderPrefix;
                    Job.JobNumberPrefix = properties.JobPrefix;
                });
            }

            action();
        }
        catch(Exception e)
        {
            Logger.Send(LogType.Error, "", CoreUtils.FormatException(e));
            MessageBox.Show(e.Message);
        }
    }
    
    private bool UpdateDatabaseLicense(CoreRow selectedrow)
    {
        ConfigureIPCServer<DatabaseServerProperties>(
            selectedrow,
            //x => "http://127.0.0.1",
            //x => x.Port,
            x => selectedrow.Get<Server, string>(x => x.Key),
            () =>
            {
                new LicenseRenewalForm().ShowDialog();
            }
        );
        return false;
    }

    private bool ManageDeletions(CoreRow row)
    {
        ConfigureLocalDatabase(row, () =>
        {
            new DeletionsWindow().ShowDialog();
        });
        return false;
    }
    
    private bool EditCustomFields(CoreRow selectedrow)
    {
        ConfigureIPCServer<DatabaseServerProperties>(
            selectedrow,
            //x => "http://127.0.0.1",
            //x => x.Port,
            x => selectedrow.Get<Server, string>(x => x.Key),
            () => { new MasterList(typeof(CustomProperty), "Class", null, true).ShowDialog(); }
        );
        return false;
    }
    
    private bool EditDatabaseScripts(CoreRow selectedrow)
    {
        ConfigureIPCServer<DatabaseServerProperties>(
            selectedrow,
            //x => "http://127.0.0.1",
            //x => x.Port,
            x => selectedrow.Get<Server, string>(x => x.Key),
            () => { new MasterList(typeof(Script), "Section", null, true).ShowDialog(); }
        );
        return false;
    }
    
    private bool EditScheduledScripts(CoreRow selectedrow)
    {
        ConfigureIPCServer<ScheduleServerProperties>(
            selectedrow,
            x => x.Server,
            () => { new MasterList(typeof(ScheduledScript), "", null, true, typeof(ScheduledScriptsGrid)).ShowDialog(); }
        );
        return false;
    }

    private bool EditWebTemplates(CoreRow selectedRow)
    {
        ConfigureIPCServer<WebServerProperties>(
            selectedRow,
            x => x.Server,
            () =>
            {
                var window = new MasterList(typeof(WebTemplate), "DataModel", "", true);
                window.Closed += (e, args) => { currentServerUsers--; };
                window.Show();
            },
            false
        );
        return false;
    }

    private bool EditWebStyles(CoreRow selectedRow)
    {
        ConfigureIPCServer<WebServerProperties>(
            selectedRow,
            x => x.Server,
            () =>
            {
                var window = new MasterList(typeof(WebStyle), "Code", "", true);
                window.Closed += (e, args) => { currentServerUsers--; };
                window.Show();
            },
            false
        );
        return false;
    }

    private bool EditWebDocuments(CoreRow selectedRow)
    {
        ConfigureIPCServer<WebServerProperties>(
            selectedRow,
            x => x.Server,
            () =>
            {
                var window = new MasterList(typeof(WebDocument), "Code", "", true);
                window.Closed += (e, args) => { currentServerUsers--; };
                window.Show();
            },
            false
        );
        return false;
    }

    private bool PRSMobileSettings(CoreRow selectedrow)
    {
        ConfigureIPCServer<WebServerProperties>(
            selectedrow,
            x => x.Server,
            () =>
            {
                var editor = new DynamicEditorForm(typeof(WebSettings));
                var settings = new GlobalConfiguration<WebSettings>().Load();

                editor.Items = new[] { settings };

                if (editor.ShowDialog() == true) new GlobalConfiguration<WebSettings>().Save(settings);
            }
        );
        return false;
    }
    
    private bool ShowServiceStatus(Button arg1, CoreRow[] arg2)
    {
        List<String> domains = new List<String>();
        var certservers = Data.Rows.Where(row => row.Get<Server,ServerType>(c=>c.Type) == ServerType.Certificate)
            .Select(row => LoadItem(row));;
        foreach (var certserver in certservers)
        {
            var certprops = certserver.Properties as CertificateEngineProperties;
            if (certprops != null)
                domains.AddRange(certprops.ParseDomainNames());
        }

        if (!domains.Any())
            domains.Add("localhost");

        var servers = Data.Rows.Where(row => row.Get<Server,ServerType>(c=>c.Type) != ServerType.Certificate)
            .Select(row => LoadItem(row));

        var statusgrid = new ServiceStatus(domains, servers);
        statusgrid.ShowDialog();

        return false;
    }

    #endregion
}