using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Reflection;
using System.Windows.Forms;
using Lskj.Control;

namespace Lskj.PubCodeDesign
{
    internal class CodeDesignModuleGridEx : ModuleGridEx
    {
        protected override void OnCreateControl()
        {
            base.OnCreateControl();
            HideTopToolPanel();
        }

        public void HideTopToolPanel()
        {
            CollapseChildControl(this, "pl_top");
            HideChildControl(this, "pl_top_right");
            HideChildControl(this, "ddbOper");
            HideChildControl(this, "ddbPrint");
            HideChildControl(this, "btnRefresh");
        }

        public void AddNewLogic()
        {
            this.ExternallyTriggeredAdd();
        }

        public void EnsureHiddenSaveColumns(IEnumerable<string> fieldNames)
        {
            DataTable gridColumns = GetGridColumns();
            if (gridColumns == null || fieldNames == null) return;

            foreach (string fieldName in fieldNames.Where(n => !string.IsNullOrWhiteSpace(n)))
            {
                EnsureHiddenGridColumn(gridColumns, fieldName);
            }
        }

        private DataTable GetGridColumns()
        {
            FieldInfo field = typeof(ModuleGridEx).GetField("_gridColumns", BindingFlags.Instance | BindingFlags.NonPublic);
            return field == null ? null : field.GetValue(this) as DataTable;
        }

        private static void EnsureHiddenGridColumn(DataTable gridColumns, string fieldName)
        {
            if (gridColumns.Rows.Cast<DataRow>().Any(n => string.Equals(n["fieldname"] + "", fieldName, StringComparison.OrdinalIgnoreCase)))
            {
                return;
            }

            DataRow row = gridColumns.NewRow();
            SetColumnValue(row, "fieldname", fieldName);
            SetColumnValue(row, "username", fieldName);
            SetColumnValue(row, "sysname", fieldName);
            SetColumnValue(row, "width", 0);
            SetColumnValue(row, "visible", 0);
            SetColumnValue(row, "fieldtype", 1);
            SetColumnValue(row, "fieldTypeId", 1);
            SetColumnValue(row, "nullable", 1);
            SetColumnValue(row, "edited", 1);
            SetColumnValue(row, "sortid", 9999);
            gridColumns.Rows.Add(row);
        }

        private static void SetColumnValue(DataRow row, string columnName, object value)
        {
            if (row == null || row.Table == null || !row.Table.Columns.Contains(columnName)) return;
            row[columnName] = value ?? DBNull.Value;
        }

        private static void CollapseChildControl(System.Windows.Forms.Control parent, string controlName)
        {
            if (parent == null || string.IsNullOrWhiteSpace(controlName)) return;

            foreach (System.Windows.Forms.Control child in parent.Controls)
            {
                if (string.Equals(child.Name, controlName, StringComparison.OrdinalIgnoreCase))
                {
                    child.Visible = false;
                    child.Height = 0;
                    child.Margin = Padding.Empty;
                }

                CollapseChildControl(child, controlName);
            }
        }

        private static void HideChildControl(System.Windows.Forms.Control parent, string controlName)
        {
            if (parent == null || string.IsNullOrWhiteSpace(controlName)) return;

            foreach (System.Windows.Forms.Control child in parent.Controls)
            {
                if (string.Equals(child.Name, controlName, StringComparison.OrdinalIgnoreCase))
                {
                    child.Visible = false;
                }

                HideChildControl(child, controlName);
            }
        }
    }
}