using DevExpress.Mvvm;
using DevExpress.Xpo;
using DevExpress.Xpo.DB;
using DevExpress.XtraBars;
using DevExpress.XtraBars.Docking2010;
using DevExpress.XtraEditors;
using DevExpress.XtraGrid.Views.Base;
using DevExpress.XtraGrid.Views.Grid;
using Ips.Library.Basic;
using Ips.Library.DxpLib;
using Ips.Library.Entity;
using Ips.Sps.Scheduling;
using Ips.Sps.Tsks.Commands;
using Ips.Sps.TskStrategys;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Ips.Sps.Tsks
{
    public partial class TskListCtrl : DevExpress.XtraEditors.XtraUserControl
    {
        public TskListCtrl()
        {
            InitializeComponent();
            gvSignalList.ShowRowNumber();
            _tskManager = TskManager.Default;
            new LogCtrl() { Parent = grpTskLog };
            this.RegisterCommands();
        }

        Session Session { get; set; }
        TskManager _tskManager;

        public void RegisterCommands()
        {
            Messenger.Default.Register<ReloadTskMessage>(this, OnReloadTsk);
            Messenger.Default.Register<TskStateChangedMessage>(this, OnTskStateChanged);
        }
        private void OnReloadTsk(ReloadTskMessage message)
        {
            Reload();
            if (message.TskId.HasValue)
            {
                gvTskList.FocusedRowHandle = gvTskList.LocateByValue(nameof(Tsk.Oid), message.TskId);
            }
        }

        private void OnTskStateChanged(TskStateChangedMessage cmd)
        {
            var rowHandle = gvTskList.LocateByValue(nameof(Tsk.Oid), cmd.TskId);
            if (rowHandle < 0) return;
            var tsk = gvTskList.GetRow(rowHandle) as Tsk;
            this.Invoke(() => tsk.Reload());
        }

        private void TskListForm_Load(object sender, EventArgs e)
        {
            _tskManager.ResetAll();
            tskStateEdit.AddEnum<TskState>();
            Reload();
        }

        private void Reload()
        {
            Session = new Session();
            var sortProperties = new SortProperty[]{
                new SortProperty(nameof(Tsk.Oid), SortingDirection.Descending)
            };
            bsTskList.DataSource = new XPCollection<Tsk>(Session, null, sortProperties);
        }

        private void gvTskList_RowClick(object sender, DevExpress.XtraGrid.Views.Grid.RowClickEventArgs e)
        {
            if (e.Button == MouseButtons.Left && e.Clicks == 1)
            {
                e.Handled = true;
                //btnEdit.PerformClick();
                var tskId = (int)gvTskList.GetRowCellValue(e.RowHandle, colOid);
                _tskManager.SelectTsk(tskId, 0);
            }
        }

        private void ShowEditForm(int? id, int stgId, string caption = null)
        {
            caption = caption.IfNullOrWhitespace(id.HasValue ? $"编辑任务-{caption}" : "新建任务");
            var form = new TskEditForm(id, stgId);
            form.Text = caption;
            //form.FormClosed += EditFormClosed;
            var documentManager = DocumentManager.FromControl(this.ParentForm);
            if (documentManager != null)
            {
                documentManager.View.AddDocument(form);
            }
            else
            {
                try
                {
                    form.ShowDialog();
                }
                finally
                {
                    form.Dispose();
                }
            }
        }

        private void EditFormClosed(object sender, FormClosedEventArgs e)
        {
            var form = sender as TskEditForm;
            form.FormClosed -= EditFormClosed;
            if (form.Id.HasValue)
            {
                Reload();
                gvTskList.FocusedRowHandle = gvTskList.LocateByValue(nameof(Tsk.Oid), form.Id);
            }
        }

        private void btnAdd_ItemClick(object sender, ItemClickEventArgs e)
        {
            //ShowEditForm(null, null);
        }

        private void btnEdit_ItemClick(object sender, ItemClickEventArgs e)
        {
            if (gvTskList.FocusedRowHandle < 0) return;
            var tsk = gvTskList.GetFocusedRow() as Tsk;
            //var id = (int)gvTskList.GetFocusedRowCellValue(colOid);
            ShowEditForm(tsk.Oid, tsk.Strategy?.Oid ?? 0, tsk.Name);
        }

        private void btnDelete_ItemClick(object sender, ItemClickEventArgs e)
        {
            if (gvTskList.FocusedRowHandle < 0) return;
            var handles = gvTskList.GetSelectedRows();
            if (handles.Length == 0) return;
            if (MsgHelper.ShowConfirm("确定删除选中的记录吗？"))
            {
                var modelList = handles.Select(m => gvTskList.GetRow(m) as Tsk).ToList();
                Session.Delete(modelList);
                Reload();
            }
        }

        private void gvTskList_MouseDown(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Right)
            {
                var hitInfo = gvTskList.CalcHitInfo(e.Location);
                btnStart.Visibility = btnStop.Visibility = btnEdit.Visibility = btnDelete.Visibility = hitInfo.InRow ? BarItemVisibility.Always : BarItemVisibility.Never;
                var tsk = gvTskList.GetRow(hitInfo.RowHandle) as Tsk;
                if (tsk != null)
                {
                    bool isStart = tsk.State != TskState.Stop;
                    btnStart.Enabled = !isStart;
                    btnStop.Enabled = isStart;
                }
                popTskList.ShowPopup(grdTskList.PointToScreen(e.Location));
            }
        }

        private void btnStart_ItemClick(object sender, ItemClickEventArgs e)
        {
            if (gvTskList.FocusedRowHandle < 0) return;
            var tsk = gvTskList.GetFocusedRow() as Tsk;
            if (tsk.IsHistory)
            {
                StartTskForm startTskForm = new StartTskForm(tsk.Oid);
                if (startTskForm.ShowDialog() != DialogResult.OK) return;
            }
            try
            {
                TskScheduler.Default.Start(tsk.Oid);
            }
            catch (Exception ex)
            {
                MsgHelper.ShowError("启动任务出错，" + ex.Message);
            }
        }

        private void btnStop_ItemClick(object sender, ItemClickEventArgs e)
        {
            if (gvTskList.FocusedRowHandle < 0) return;
            var id = (int)gvTskList.GetFocusedRowCellValue(colOid);
            try
            {
                TskScheduler.Default.Stop(id);
            }
            catch (Exception ex)
            {
                MsgHelper.ShowError("停止任务出错，" + ex.Message);
            }
        }

        private void gvTskList_FocusedRowObjectChanged(object sender, FocusedRowObjectChangedEventArgs e)
        {

        }

        private void gvSignalList_RowClick(object sender, DevExpress.XtraGrid.Views.Grid.RowClickEventArgs e)
        {
            if (e.Button == MouseButtons.Left && e.Clicks == 1)
            {
                e.Handled = true;
                var sig = (sender as GridView).GetRow(e.RowHandle) as TskSignal;
                _tskManager.SelectTsk(sig.Tsk.Oid, sig.Oid);
            }

        }
    }
}