using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using Comal.Classes;
using InABox.Clients;
using InABox.Core;
using InABox.DynamicGrid;
using InABox.WPF;

namespace PRSDesktop
{
    public static class NotificationUtils
    {
        private static Entity LoadEntity(Type type, Guid id, params string[] columnnames)
        {
            var filter = Activator.CreateInstance(typeof(Filter<>).MakeGenericType(type), "ID", Operator.IsEqualTo, id);
            IColumns? columns = null;
            if (columnnames.Any())
            {
                columns = Columns.Create(type);
                foreach (var columnname in columnnames)
                    columns.Add(columnname);
            }

            var table = ClientFactory.CreateClient(type).Query(filter, columns);
            var result = table.Rows.FirstOrDefault()?.ToObject(type) as Entity;
            return result;
        }

        private static IDynamicGrid FindDataGrid(Type type)
        {
            var gridtypes = CoreUtils.TypeList(
                AppDomain.CurrentDomain.GetAssemblies(),
                myType =>
                    myType.IsClass
                    && !myType.IsAbstract
                    && !myType.IsGenericType
                    && myType.BaseType != null
                    && myType.BaseType.Name == typeof(DynamicDataGrid<>).Name
                    && myType.ContainsInheritedGenericType(type)
            ).ToArray();

            var gridtype = gridtypes.Any() ? gridtypes.First() : typeof(DynamicDataGrid<>).MakeGenericType(type);
            var grid = Activator.CreateInstance(gridtype) as IDynamicGrid;
            return grid;
        }

        private static bool PerformAction(Guid[] ids, Func<Notification, bool> action)
        {
            if (!ids.Any())
                //if (Notifications.SelectedRows?.FirstOrDefault() == null)
            {
                MessageBox.Show("Please select a message first!");
                return false;
            }

            var updates = new List<Notification>();

            Notification[] notifications = { };

            var columns = new Columns<Notification>().Default(ColumnType.IncludeForeignKeys);
            columns.Add(x => x.EntityID);
            columns.Add(x => x.EntityType);
            columns.Add(x => x.Closed);
            columns.Add(x => x.Sender.Name);
            columns.Add(x => x.Description);
            using (new WaitCursor())
            {
                notifications = new Client<Notification>().Query(
                    new Filter<Notification>(x => x.ID).InList(ids),
                    columns
                ).Rows.Select(x => x.ToObject<Notification>()).ToArray();
            }

            foreach (var notification in notifications)
                if (action.Invoke(notification))
                    updates.Add(notification);
            if (updates.Any())
            {
                using (new WaitCursor())
                {
                    new Client<Notification>().Save(updates, "");
                }

                return true;
            }

            return false;
        }

        public static bool IsDigitalForm(string name)
        {
            if (string.IsNullOrWhiteSpace(name))
                return false;
            var type = CoreUtils.GetEntity(name);
            var result = type.GetInterfaces().Contains(typeof(IDigitalFormInstance));
            return result;
        }

        public static Type? GetEntityType(string name)
        {
            if (string.IsNullOrWhiteSpace(name))
                return null;

            if (!IsDigitalForm(name))
                return CoreUtils.GetEntityOrNull(name);

            var form = CoreUtils.GetEntityOrNull(name);
            if (form is null)
                return null;
            var parent = CoreUtils.GetProperty(form, "Parent");
            var type = parent.PropertyType.GetInheritedGenericTypeArguments().FirstOrDefault();
            return type;
        }

        public static bool MakeVisible(FrameworkElement element, float left, float right, params bool[] visibleconditions)
        {
            var visible = true;
            foreach (var condition in visibleconditions)
                visible = visible && condition;
            element.Visibility = visible ? Visibility.Visible : Visibility.Collapsed;
            element.Margin = new Thickness(left, element.Margin.Top, right, element.Margin.Bottom);
            return visible;
        }

        public static bool ViewEntity(Guid[] ids)
        {
            return PerformAction(ids, notification =>
            {
                var type = GetEntityType(notification.EntityType);
                var id = notification.EntityID;

                if (IsDigitalForm(notification.EntityType))
                {
                    var form = (LoadEntity(
                        CoreUtils.GetEntity(notification.EntityType), 
                        notification.EntityID, 
                        "ID", "Parent.ID") as IDigitalFormInstance)!;
                    id = form.ParentID();
                }

                var entity = LoadEntity(type, id);

                var grid = FindDataGrid(type);
                return grid.EditItems(new object[] { entity });
            });
        }

        public static bool ViewForm(Guid[] ids)
        {
            return PerformAction(ids, notification =>
            {
                var type = CoreUtils.GetEntity(notification.EntityType);
                var form = LoadEntity(type, notification.EntityID);
                if(form is IDigitalFormInstance formInstance)
                {
                    if(DynamicFormEditWindow.EditDigitalForm(formInstance, out var dataModel)){
                        dataModel.Update(null);
                        return true;
                    }
                }
                return false;
            });
        }

        public static bool ReplyOrForward(Guid[] ids, string prefix, bool selectrecipient, bool sentfolder)
        {
            return PerformAction(ids, notification =>
            {
                var sb = new StringBuilder(string.Format("\n\nAt {0:HH:mmtt} on {0:dd MMM yy}, {1} wrote:\n", notification.Created,
                    notification.Sender.Name));
                var desc = string.IsNullOrWhiteSpace(notification.Description) ? "" : CoreUtils.StripHTML(notification.Description);
                foreach (var line in desc.Split(new[] { '\n' }, StringSplitOptions.RemoveEmptyEntries).Where(x => !string.IsNullOrWhiteSpace(x)))
                    sb.AppendFormat("> {0}\n", line.Trim());

                var form = new NotificationForm
                {
                    Subject = string.Format("{0} {1}", prefix, notification.Title),
                    Recipient = selectrecipient ? sentfolder ? notification.Employee.ID : notification.Sender.ID : Guid.Empty,
                    JobID = notification.Job.ID,
                    Description = sb.ToString()
                };
                if (form.ShowDialog() == true)
                {
                    notification.Description = string.Format("{0}\nReplied to Message", notification.Description);
                    if (MessageBox.Show("Do you want to dismiss this message?", "Task Created", MessageBoxButton.YesNo) == MessageBoxResult.Yes)
                        notification.Closed = DateTime.Now;
                    return true;
                }

                return false;
            });
        }

        public static bool CreateTask(Guid[] ids, Guid employeeid)
        {
            return PerformAction(ids, notification =>
            {
                var task = new Kanban
                {
                    Title = notification.Title,
                    Notes = new[] { notification.Description },

                    Status = KanbanStatus.Open
                };
                task.JobLink.ID = notification.Job.ID;
                task.EmployeeLink.ID = employeeid;
                task.ManagerLink.ID = notification.Sender.ID;
                var kg = new TaskGrid();
                if (kg.EditItems(new[] { task }))
                {
                    using (new WaitCursor())
                    {
                        task = new Client<Kanban>().Load(new Filter<Kanban>(x => x.ID).IsEqualTo(task.ID)).FirstOrDefault();
                    }

                    notification.Description = string.Format("{0}\nCreated Task for {1}", notification.Description, task.EmployeeLink.Name);
                    //notification.Kanban.ID = task.ID;
                    if (MessageBox.Show("Do you want to dismiss this message?", "Task Created", MessageBoxButton.YesNo) == MessageBoxResult.Yes)
                        notification.Closed = DateTime.Now;
                    return true;
                }

                return false;
            });
        }

        public static bool CreateRequi(Guid[] ids, Guid employeeid)
        {
            return PerformAction(ids, notification =>
            {
                var requi = new Requisition
                {
                    Title = notification.Title,
                    Notes = new[] { notification.Description }
                };
                requi.JobLink.ID = notification.Job.ID;
                requi.Employee.ID = employeeid;
                requi.RequestedBy.ID = notification.Sender.ID;
                var grid = new DynamicDataGrid<Requisition>();
                if (grid.EditItems(new[] { requi }))
                {
                    notification.Description = string.Format("{0}\nCreated Requi# {1}", notification.Description, requi.Number);
                    //notification.Requisition.ID = requi.ID;
                    if (MessageBox.Show("Do you want to dismiss this message?", "Requisition Created", MessageBoxButton.YesNo) ==
                        MessageBoxResult.Yes)
                        notification.Closed = DateTime.Now;
                    return true;
                }

                return false;
            });
        }

        public static bool CreateDelivery(Guid[] ids)
        {
            return PerformAction(ids, notification =>
            {
                var delivery = new Delivery
                {
                    Notes = notification.Description,
                    Due = DateTime.Today.AddDays(1)
                };
                delivery.Employee.ID = notification.Sender.ID;
                delivery.Job.ID = notification.Job.ID;
                var grid = new DynamicDataGrid<Delivery>();
                if (grid.EditItems(new[] { delivery }))
                {
                    notification.Description = string.Format("{0}\nCreated Delivery# {1}", notification.Description, delivery.Number);
                    //notification.Delivery.ID = delivery.ID;
                    if (MessageBox.Show("Do you want to dismiss this message?", "Delivery Created", MessageBoxButton.YesNo) == MessageBoxResult.Yes)
                        notification.Closed = DateTime.Now;
                    return true;
                }

                return false;
            });
        }

        public static bool AttachToJob(Guid[] ids)
        {
            return PerformAction(ids, notification =>
            {
                var jobs = new MultiSelectDialog<Job>(
                    null,
                    new Columns<Job>(x => x.ID), //new System.Linq.Expressions.Expression<Func<Job, object>>[] {  x=>x.ID },
                    false
                );

                if (jobs.ShowDialog() != true)
                    return false;

                notification.Job.ID = jobs.IDs().First();
                return true;
            });
        }

        public static bool ViewJob(Guid[] ids)
        {
            return PerformAction(ids, notification =>
            {
                var job = new Client<Job>().Load(new Filter<Job>(x => x.ID).IsEqualTo(notification.Job.ID)).FirstOrDefault();
                if (job != null)
                    FindDataGrid(typeof(Job)).EditItems(new[] { job });
                return false;
            });
        }

        public static bool CreateSetout(Guid[] ids)
        {
            return PerformAction(ids, notification =>
            {
                var templates = new MultiSelectDialog<ManufacturingTemplate>(
                    null,
                    new Columns<ManufacturingTemplate>(x =>
                        x.ID), //new System.Linq.Expressions.Expression<Func<ManufacturingTemplate, object>>[] {  x=>x.ID  },
                    false
                );

                if (templates.ShowDialog() != true)
                    return false;

                var template = templates.Items().FirstOrDefault();
                Setout setout = null;
                ManufacturingPacket packet = null;
                var pstages = new List<ManufacturingPacketStage>();
                using (new WaitCursor())
                {
                    var setoutnumber = string.Format("{0}-{1:yyMMdd}-", notification.Job.JobNumber, DateTime.Today);

                    var setouts = new Client<Setout>().Query(
                        new Filter<Setout>(x => x.JobLink.ID).IsEqualTo(notification.Job.ID).And(x => x.Number).BeginsWith(setoutnumber),
                        new Columns<Setout>(x => x.Number),
                        new SortOrder<Setout>(x => x.Number)
                    ).Rows;
                    var i = 1;
                    while (setouts.Any(r => r.Get<Setout, string>(c => c.Number).Equals(string.Format("{0}{1:D3}", setoutnumber, i))))
                        i++;

                    setout = new Setout
                    {
                        Description = notification.Description,
                        Reference = notification.Title,
                        Number = string.Format("{0}{1:D2}", setoutnumber, i)
                    };
                    setout.JobLink.ID = notification.Job.ID;
                    new Client<Setout>().Save(setout, "Created from Notification");

                    packet = new ManufacturingPacket();
                    packet.SetoutLink.ID = setout.ID;
                    //packet.JobLink.ID = notification.Job.ID;
                    packet.Serial = string.Format("{0}-001", setout.Number);
                    packet.Group = template.Factory.Name;
                    packet.ManufacturingTemplateLink.ID = template.ID;
                    packet.ManufacturingTemplateLink.Code = template.Code;
                    packet.Title = notification.Title;
                    packet.Quantity = 1;
                    new Client<ManufacturingPacket>().Save(packet, "Created from Notification");

                    var tstages = new Client<ManufacturingTemplateStage>().Load(
                        new Filter<ManufacturingTemplateStage>(x => x.Template.ID).IsEqualTo(packet.ManufacturingTemplateLink.ID),
                        new SortOrder<ManufacturingTemplateStage>(x => x.Sequence)
                    );
                    foreach (var tstage in tstages)
                    {
                        var pstage = new ManufacturingPacketStage
                        {
                            Time = tstage.Time,
                            Sequence = tstage.Sequence,
                            SequenceType = tstage.SequenceType,
                            Started = DateTime.MinValue,
                            PercentageComplete = 0.0F,
                            Completed = DateTime.MinValue,
                            QualityChecks = tstage.QualityChecks,
                            QualityStatus = QualityStatus.NotChecked,
                            QualityNotes = ""
                        };

                        var section = new Client<ManufacturingSection>()
                            .Load(new Filter<ManufacturingSection>(x => x.ID).IsEqualTo(tstage.Section.ID))
                            .FirstOrDefault();
                        if (section != null)
                        {
                            pstage.ManufacturingSectionLink.ID = tstage.Section.ID;
                            pstage.ManufacturingSectionLink.Name = tstage.Section.Name;
                        }

                        pstages.Add(pstage);
                    }

                    new Client<ManufacturingPacketStage>().Save(pstages, "Created from Notification");
                }

                var grid = new DynamicDataGrid<Setout>();
                if (grid.EditItems(new[] { setout }))
                {
                    notification.Description = string.Format("{0}\nCreated Setout# {1}", notification.Description, setout.Number);
                    //notification.Setout.ID = setout.ID;
                    if (MessageBox.Show("Do you want to dismiss this message?", "Setout Created", MessageBoxButton.YesNo) == MessageBoxResult.Yes)
                        notification.Closed = DateTime.Now;
                    return true;
                }

                using (new WaitCursor())
                {
                    // Cascade on PAcket / PacketStage should** take care of the child records
                    // Be good to keep an eye on that!
                    new Client<Setout>().Delete(setout, "");
                }

                return false;
            });
        }

        public static bool Archive(Guid[] ids)
        {
            return PerformAction(ids, notification =>
            {
                notification.Closed = DateTime.Now;
                return true;
            });
        }

        public static bool Reopen(Guid[] ids)
        {
            return PerformAction(ids, notification =>
            {
                notification.Closed = DateTime.MinValue;
                return true;
            });
        }
    }
}