using FastReport.Design;
using FastReport.Forms;
using FastReport.Utils;
using System;
using System.Drawing;
using System.Windows.Forms;

namespace FastReport.Table
{
    internal class TableCellMenu : TableMenuBase
    {
        #region Fields
        private SelectedObjectCollection selection;
        private TableBase table;
        private TableCell topCell;
        private ContextMenuItem miFormat;
        private ContextMenuItem miMergeSplit;
        private ContextMenuItem miClear;
        private ContextMenuItem miCut;
        private ContextMenuItem miCopy;
        private ContextMenuItem miPaste;
        private ContextMenuItem miInsert;
        private ContextMenuItem miRemove;
        private ContextMenuItem miAddColumnLeft;
        private ContextMenuItem miAddColumnRight;
        private ContextMenuItem miAddRowTop;
        private ContextMenuItem miAddRowBottom;
        private ContextMenuItem miRemoveRow;
        private ContextMenuItem miRemoveColumn;
        private ContextMenuItem miStyle;
        #endregion

        #region Private Methods
        private void miFormat_Click(object sender, EventArgs e)
        {
            using (FormatEditorForm form = new FormatEditorForm())
            {
                form.TextObject = topCell;
                if (form.ShowDialog() == DialogResult.OK)
                {
                    SelectedTextBaseObjects components = new SelectedTextBaseObjects(Designer);
                    components.Update();
                    components.SetFormat(form.Formats);
                    Change();
                }
            }
        }

        private void miMergeSplit_Click(object sender, EventArgs e)
        {
            if (miMergeSplit.Checked)
            {
                Rectangle rect = table.GetSelectionRect();

                // reset spans inside selection
                for (int x = 0; x < rect.Width; x++)
                {
                    for (int y = 0; y < rect.Height; y++)
                    {
                        TableCell cell = table[x + rect.X, y + rect.Y];
                        cell.ColSpan = 1;
                        cell.RowSpan = 1;
                        if (cell != topCell)
                            cell.Text = "";
                    }
                }

                topCell.ColSpan = rect.Width;
                topCell.RowSpan = rect.Height;
                selection.Clear();
                selection.Add(topCell);
            }
            else
            {
                topCell.ColSpan = 1;
                topCell.RowSpan = 1;
            }

            Change();
        }

        private void miClear_Click(object sender, EventArgs e)
        {
            foreach (Base c in selection)
            {
                if (c is TableCell)
                    (c as TableCell).Text = "";
            }
            Change();
        }

        private void miCut_Click(object sender, EventArgs e)
        {
            table.Clipboard.CutCells(table.GetSelectionRect());
            table.CreateUniqueNames();
            Change();
        }

        private void miCopy_Click(object sender, EventArgs e)
        {
            table.Clipboard.CopyCells(table.GetSelectionRect());
        }

        private void miPaste_Click(object sender, EventArgs e)
        {
            table.Clipboard.PasteCells(topCell.Address);
            table.CreateUniqueNames();
            selection.Clear();
            selection.Add(table);
            Change();
        }

        private void miAddColumnLeft_Click(object sender, EventArgs e)
        {
            Rectangle rect = table.GetSelectionRect();
            int pos = rect.Left;
            int countNewColumns = rect.Width;
            selection.Clear();
            for (int i = 0; i < countNewColumns; i++)
            {
                TableColumn column = new TableColumn();
                table.Columns.Insert(pos, column);
                table.CreateUniqueNames();
                selection.Add(column);
            }
            Change();
        }

        private void miAddColumnRight_Click(object sender, EventArgs e)
        {
            Rectangle rect = table.GetSelectionRect();
            int pos = rect.Right;
            int countNewColumns = rect.Width;
            selection.Clear();
            for (int i = 0; i < countNewColumns; i++)
            {
                TableColumn column = new TableColumn();
                table.Columns.Insert(pos, column);
                table.CreateUniqueNames();
                selection.Add(column);
            }
            Change();
        }

        private void miAddRowTop_Click(object sender, EventArgs e)
        {
            Rectangle rect = table.GetSelectionRect();
            int pos = rect.Top;
            int countNewRows = rect.Height;
            selection.Clear();
            for (int i = 0; i < countNewRows; i++)
            {
                TableRow row = new TableRow();
                table.Rows.Insert(pos, row);
                table.CreateUniqueNames();
                selection.Add(row);
            }
            Change();
        }

        private void miAddRowBottom_Click(object sender, EventArgs e)
        {
            Rectangle rect = table.GetSelectionRect();
            int pos = rect.Bottom;
            int countNewRows = rect.Height;
            selection.Clear();
            for (int i = 0; i < countNewRows; i++)
            {
                TableRow row = new TableRow();
                table.Rows.Insert(pos, row);
                table.CreateUniqueNames();
                selection.Add(row);
            }
            Change();
        }

        private void miRemoveColumn_Click(object sender, EventArgs e)
        {
            Rectangle rect = table.GetSelectionRect();
            int pos = rect.Left;
            for (int i = 0; i < rect.Width; i++)
            {
                if (table.Columns[pos].IsAncestor)
                {
                    FRMessageBox.Error(String.Format(Res.Get("Messages,DeleteAncestor"), table.Columns[pos].Name));
                    break;
                }
                else
                    table.Columns.RemoveAt(pos);
            }
            selection.Clear();
            selection.Add(table);
            Change();
        }

        private void miRemoveRow_Click(object sender, EventArgs e)
        {
            Rectangle rect = table.GetSelectionRect();
            int pos = rect.Top;
            for (int i = 0; i < rect.Height; i++)
            {
                if (table.Rows[pos].IsAncestor)
                {
                    FRMessageBox.Error(String.Format(Res.Get("Messages,DeleteAncestor"), table.Rows[pos].Name));
                    break;
                }
                else
                    table.Rows.RemoveAt(pos);
            }
            selection.Clear();
            selection.Add(table);
            Change();
        }

        private void miStyle_Click(object sender, EventArgs e)
        {
            if (sender is ContextMenuItem menuItem)
                Designer.SelectedReportComponents.SetStyle(menuItem.Text);
        }
        #endregion

        public TableCellMenu(Designer designer) : base(designer)
        {
            selection = Designer.SelectedObjects;
            topCell = selection[0] as TableCell;
            table = topCell.Parent.Parent as TableBase;

            miFormat = CreateMenuItem(168, Res.Get("ComponentMenu,TextObject,Format"), new EventHandler(miFormat_Click));
            miMergeSplit = CreateMenuItem(217, Res.Get("ComponentMenu,TableCell,Merge"), new EventHandler(miMergeSplit_Click));
            miMergeSplit.CheckOnClick = true;
            miClear = CreateMenuItem(82, Res.Get("ComponentMenu,TextObject,Clear"), new EventHandler(miClear_Click));
            miCut = CreateMenuItem(5, Res.Get("Designer,Menu,Edit,Cut"), new EventHandler(miCut_Click));
            miCut.BeginGroup = true;
            miCopy = CreateMenuItem(6, Res.Get("Designer,Menu,Edit,Copy"), new EventHandler(miCopy_Click));
            miPaste = CreateMenuItem(7, Res.Get("Designer,Menu,Edit,Paste"), new EventHandler(miPaste_Click));

            miAddColumnLeft = CreateMenuItem(220, Res.Get("ComponentMenu,TableColumn,InsertToLeft"), new EventHandler(miAddColumnLeft_Click));
            miAddColumnRight = CreateMenuItem(221, Res.Get("ComponentMenu,TableColumn,InsertToRight"), new EventHandler(miAddColumnRight_Click));
            miAddRowTop = CreateMenuItem(218, Res.Get("ComponentMenu,TableRow,InsertAbove"), new EventHandler(miAddRowTop_Click));
            miAddRowBottom = CreateMenuItem(219, Res.Get("ComponentMenu,TableRow,InsertBelow"), new EventHandler(miAddRowBottom_Click));
            miInsert = CreateMenuItem(Res.Get("ComponentMenu,TableCell,Insert"));
            miInsert.DropDownItems.AddRange(new ContextMenuItem[] {
                miAddColumnLeft, miAddColumnRight, miAddRowTop, miAddRowBottom });

            miRemoveRow = CreateMenuItem(Res.Get("ComponentMenu,TableCell,RemoveRow"), new EventHandler(miRemoveRow_Click));
            miRemoveColumn = CreateMenuItem(Res.Get("ComponentMenu,TableCell,RemoveColumn"), new EventHandler(miRemoveColumn_Click));
            miRemove = CreateMenuItem(51, Res.Get("ComponentMenu,TableCell,Remove"), null);
            miRemove.DropDownItems.AddRange(new ContextMenuItem[] {
                miRemoveRow, miRemoveColumn });

            miStyle = CreateMenuItem(87, Res.Get("ComponentMenu,TableCell,Styles"), null);
            miStyle.Visible = table.Report.Styles.Count > 0;
            miStyle.BeginGroup = true;
            foreach (Style style in table.Report.Styles)
            {
                miStyle.DropDownItems.Add(CreateMenuItem(style.Name, new EventHandler(miStyle_Click)));
            }

            // QAT items
            miCut.QatItem = miCopy.QatItem = miPaste.QatItem = true;

            bool canJoin = selection.Count > 1;
            bool canSplit = selection.Count == 1 && topCell != null && (topCell.ColSpan > 1 || topCell.RowSpan > 1);
            miMergeSplit.Enabled = canJoin || canSplit;
            miMergeSplit.Checked = canSplit;
            if (miMergeSplit.Checked)
                miMergeSplit.Text = Res.Get("ComponentMenu,TableCell,Split");
            miPaste.Enabled = table.Clipboard.CanPasteCells;

            Items.AddRange(new ContextMenuItem[] {
                miFormat, miMergeSplit, miClear, miInsert, miRemove, miStyle,
                miCut, miCopy, miPaste });
        }
    }
}