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

namespace PRSDesktop;

public class JobDocumentSetMilestoneTasks : DynamicDataGrid<JobDocumentSetMileStoneKanban>
{
    public Guid MileStoneID { get; set; }
    public Guid JobID { get; set; }

    public JobDocumentSetSettings Settings { get; set; }
    
    protected override void DoReconfigure(FluentList<DynamicGridOption> options)
    {
        base.DoReconfigure(options);
        options.BeginUpdate()
            .Clear()
            .Add(DynamicGridOption.RecordCount)
            .EndUpdate();
    }
    protected override void Init()
    {
        base.Init();

        HiddenColumns.Add(x => x.Kanban.ID);
        HiddenColumns.Add(x => x.Kanban.Summary);
        HiddenColumns.Add(x => x.Entity.DocumentSet.Code);
        HiddenColumns.Add(x => x.Entity.Type.Code);
        HiddenColumns.Add(x => x.Entity.Revision);

        // HiddenColumns.Add(x => x.Kanban.Completed);
        // ActionColumns.Add(new DynamicImageColumn(StatusImage));
        ActionColumns.Add(new DynamicMenuColumn(TaskMenuOpening));

        AddButton("", PRSDesktop.Resources.add.AsBitmapImage(), AddTask);
        AddButton("", PRSDesktop.Resources.pencil.AsBitmapImage(), EditTask);
        AddButton("", PRSDesktop.Resources.delete.AsBitmapImage(), DeleteTask, DynamicGridButtonPosition.Right);
    }

    private void TaskMenuOpening(DynamicMenuColumn column, CoreRow? row)
    {
        var status = column.AddItem("Set Status", PRSDesktop.Resources.kanban, null);
        column.AddItem("To Do", null, (r) => SetTaskStatus(r, KanbanStatus.Open,false), status);
        column.AddItem("In Progress", null, (r) => SetTaskStatus(r, KanbanStatus.InProgress,false), status);
        column.AddItem("Waiting", null, (r) => SetTaskStatus(r, KanbanStatus.Waiting,false), status);
        column.AddItem("Complete", null, (r) => SetTaskStatus(r, KanbanStatus.Complete,true), status);
        column.AddSeparator();
        column.AddItem("Email Task", PRSDesktop.Resources.email, EmailTask);
    }
    
    private void SetTaskStatus(CoreRow row, KanbanStatus category, bool complete)
    {
        using (new WaitCursor())
        {
            var kanbanID = row.Get<JobDocumentSetMileStoneKanban, Guid>(c => c.Kanban.ID);
            var kanban = new Client<Kanban>().Load(
                new Filter<Kanban>(x => x.ID).IsEqualTo(kanbanID)).FirstOrDefault();
            if (kanban == null)
            {
                MessageWindow.ShowError("Cannot Load Kanban", $"No Kanban with ID {kanbanID}");
                return;
            }

            if (category != kanban.Status)
            {
                kanban.Status = category;
                Client.Save(kanban, "Updated from Job Document Milestone List");
                DoChanged();
                Refresh(false,true);
            }
        }
    }
    
    private void EmailTask(CoreRow? row)
    {
        var files = new Client<Document>().Query(
            new Filter<Document>(x => x.ID).InQuery(new Filter<JobDocumentSetMileStoneFile>(x => x.EntityLink.ID).IsEqualTo(MileStoneID),
                x => x.DocumentLink.ID),
            new Columns<Document>(x=>x.FileName,x=>x.Data)
        ).ToDictionary<Document, String, byte[]>(c => c.FileName, c => c.Data);
        
        StringBuilder subject = new StringBuilder();
        subject.AppendFormat("{0}: ", row.Get<JobDocumentSetMileStoneKanban, int>(x => x.Kanban.Number));

        subject.AppendFormat("{0}", row.Get<JobDocumentSetMileStoneKanban, String>(x => x.Kanban.Title));

        StringBuilder body = new StringBuilder();
        body.AppendLine("Dear ,");
        body.AppendLine();
        body.AppendLine("Some information is required regarding the attached documents:");
        body.AppendLine();
        body.AppendLine(row.Get<JobDocumentSetMileStoneKanban, String>(x => x.Kanban.Summary));
        body.AppendLine();
        body.AppendLine("Regards,");
        body.AppendLine(App.EmployeeName);
        
        EmailUtils.CreateEMLFile(
            files,
            "",
            subject.ToString(),
            body.ToString()
        );
    }

    protected override DynamicGridColumns LoadColumns()
    {
        return new DynamicGridColumns()
        {
            new DynamicGridColumn()
            {
                ColumnName = CoreUtils.GetFullPropertyName<JobDocumentSetMileStoneKanban, int>(x => x.Kanban.Number, "."), 
                Caption = "#",
                Width = 50,
                Alignment = Alignment.MiddleCenter
            },
            new DynamicGridColumn()
            {
                ColumnName = CoreUtils.GetFullPropertyName<JobDocumentSetMileStoneKanban, String>(x => x.Kanban.Title, "."), 
                Caption = "Title",
                Width = 0
            },
            new DynamicGridColumn()
            {
                ColumnName = CoreUtils.GetFullPropertyName<JobDocumentSetMileStoneKanban, KanbanStatus>(x => x.Kanban.Status, "."), 
                Caption = "Status",
                Width = 70,
                Alignment = Alignment.MiddleCenter
            }
        };
    }

    // private readonly BitmapImage _status = PRSDesktop.Resources.tick.AsBitmapImage();
    //
    // private BitmapImage? StatusImage(CoreRow? arg)
    // {
    //     return arg == null
    //         ? _status
    //         : arg.Get<JobDocumentSetMileStoneKanban, DateTime>(c => c.Kanban.Completed).IsEmpty()
    //             ? null
    //             : _status;
    // }

    private bool AddTask(Button arg1, CoreRow[] arg2)
    {
        if (MileStoneID == Guid.Empty)
            return false;
        
        var kg = DynamicGridUtils.CreateDynamicGrid(typeof(DynamicDataGrid<>), typeof(Kanban));
        kg.OnAfterSave += (editor, items) =>
        {
            List<JobDocumentSetMileStoneKanban> msks = new List<JobDocumentSetMileStoneKanban>();
            foreach (Kanban item in items.Cast<Kanban>())
            {
                JobDocumentSetMileStoneKanban msk = new JobDocumentSetMileStoneKanban();
                msk.Kanban.ID = item.ID;
                msk.Entity.ID = MileStoneID;
                msks.Add(msk);
            }

            new Client<JobDocumentSetMileStoneKanban>().Save(msks, "");
        };
        
        var kanban = new Kanban();
        kanban.EmployeeLink.ID = App.EmployeeID;
        kanban.ManagerLink.ID = App.EmployeeID;
        kanban.JobLink.ID = JobID;
        kanban.Status = KanbanStatus.Open;
        kanban.Type.ID = Settings?.DocumentMilestoneKanbanType.ID ?? Guid.Empty;

        var milestone = new Client<JobDocumentSetMileStone>().Query(new Filter<JobDocumentSetMileStone>(x => x.ID).IsEqualTo(MileStoneID),
            new Columns<JobDocumentSetMileStone>(x => x.DocumentSet.Code).Add(x => x.Type.Code).Add(x => x.Revision)
        ).ToTuples<JobDocumentSetMileStone, String, String, String>(x => x.DocumentSet.Code, x => x.Type.Code, x => x.Revision).FirstOrDefault();
        if (milestone != null)
        {
            kanban.Title = String.Format(
                "{0}: {1} ({2}{3})",
                Settings?.DocumentMilestoneKanbanType.Code,
                milestone.Item1,
                milestone.Item2,
                !String.IsNullOrWhiteSpace(milestone.Item3) ? $" Rev {milestone.Item3}" : ""
            );
        }

        if (kg.EditItems(new Kanban[] { kanban }) == true)
        {
            DoChanged();
            return true;
        }

        return false;
    }
    
    private bool EditTask(Button arg1, CoreRow[] arg2)
    {
        if (MileStoneID == Guid.Empty)
            return false;
        if (!SelectedRows.Any())
            return false;
        var ids = SelectedRows.ToArray().Select(r=>r.Get<JobDocumentSetMileStoneKanban,Guid>(x=>x.Kanban.ID)).ToArray();
        var kanbans = new Client<Kanban>().Load(new Filter<Kanban>(x => x.ID).InList(ids));
        var kg = DynamicGridUtils.CreateDynamicGrid(typeof(DynamicDataGrid<>), typeof(Kanban));
        if (kg.EditItems(kanbans) == true)
        {
            DoChanged();
            return true;
        }
        return false;
    }
    
    private bool DeleteTask(Button arg1, CoreRow[] arg2)
    {
        if (MileStoneID == Guid.Empty)
            return false;
        if (!SelectedRows.Any())
            return false;

        if (MessageBox.Show("This will unlink the selected task from this milestone, but leave the task active.\n\nDo You wish to continue?",
                "Unlink Task", MessageBoxButton.YesNo) != MessageBoxResult.Yes)
            return false;

        var ids = SelectedRows.ToArray().Select(r=>r.Get<JobDocumentSetMileStoneKanban,Guid>(x=>x.ID)).ToArray();
        var msks = ids.Select(x => new JobDocumentSetMileStoneKanban() { ID = x }).ToArray();
        new Client<JobDocumentSetMileStoneKanban>().Delete(msks, "Removed from Meeting");
        DoChanged();
        return true;
    }
    
    protected override void Reload(Filters<JobDocumentSetMileStoneKanban> criteria, Columns<JobDocumentSetMileStoneKanban> columns, ref SortOrder<JobDocumentSetMileStoneKanban>? sort, Action<CoreTable?, Exception?> action)
    {
        criteria.Add(MileStoneID == Guid.Empty
            ? new Filter<JobDocumentSetMileStoneKanban>(x=>x.Entity.ID).None()
            : new Filter<JobDocumentSetMileStoneKanban>(x => x.Entity.ID).IsEqualTo(MileStoneID));
        base.Reload(criteria, columns, ref sort, action);
    }
    
}