using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using ICSharpCode.Core;
using Mesnac.Action.Base;
using Mesnac.Codd.Session;
using System.Data;
using System.Windows.Forms;

namespace Mesnac.Action.Default.Purview
{
    /// <summary>
    /// 把当前选中的权限保存为默认权限
    /// </summary>
    public class SaveDefaultPurviewAction : DatabaseAction, IAction
    {
        public void Run(RuntimeParameter runtime)
        {
            base.RunIni(runtime);
            ICSharpCode.Core.LoggingService<SaveDefaultPurviewAction>.Debug("把当前选中的权限保存为默认权限");
            DbMCControl basRolePurviewControl = this.GetDbMCControlByKey(Mesnac.Basic.DataSourceFactory.MCDbType.Local, "BasRolePermission").FirstOrDefault();
            if (basRolePurviewControl == null || !basRolePurviewControl.BaseControl.GetType().IsSubclassOf(typeof(TreeView)))
            {
                ICSharpCode.Core.LoggingService<SaveDefaultPurviewAction>.Warn("保存角色权限 缺少权限树形控件...");
                return;
            }
            TreeView tv = basRolePurviewControl.BaseControl as TreeView;
            if (tv != null)
            {
                DbHelper dbhelper = NewDbHelper(basRolePurviewControl.DesignSource);
                if (dbhelper == null)
                {
                    return;
                }
                save(dbhelper, tv.Nodes);
                string msg1 = StringParser.Parse(ResourceService.GetString("Mesnac_Action_Default_Purview_SavePurview_msg1"));      //信息保存完毕!
                ShowMsg(msg1);
            }
        }

        private void save(DbHelper dbhelper, TreeNodeCollection tnc)
        {
            foreach (TreeNode n in tnc)
            {
                if (n.Checked)
                {
                    insert(dbhelper, n.Tag as APurview);
                }
                else
                {
                    delete(dbhelper, n.Tag as APurview);
                }
                if (n.Nodes != null)
                {
                    save(dbhelper, n.Nodes);
                }
            }
        }

        private void insert(DbHelper dbhelper, APurview aPurview)
        {
            if (aPurview == null)
                return;
            try
            {
                StringBuilder sb = new StringBuilder();
                sb.AppendLine("IF NOT EXISTS(SELECT * FROM BasDefaultPermission WHERE PermissionItemGUID=@PermissionItemGUID AND PermissionType=@PermissionType)");
                sb.AppendLine("INSERT INTO BasDefaultPermission(GUID,PermissionItemGUID,PermissionType)");
                sb.AppendLine("VALUES(NEWID(),@PermissionItemGUID,@PermissionType)");

                dbhelper.ClearParameter();
                dbhelper.CommandType = CommandType.Text;
                dbhelper.CommandText = sb.ToString();
                dbhelper.AddParameter("@PermissionItemGUID", aPurview.GUID);
                dbhelper.AddParameter("@PermissionType", aPurview.PurviewType);

                dbhelper.ExecuteNonQuery();
            }
            catch (Exception ex)
            {
                ICSharpCode.Core.LoggingService<SaveDefaultPurviewAction>.Error("保存默认权限失败-insert:" + ex.Message, ex);
            }
        }

        private void delete(DbHelper dbhelper, APurview aPurview)
        {
            if (aPurview == null)
                return;
            try
            {
                dbhelper.ClearParameter();
                dbhelper.CommandType = CommandType.Text;
                dbhelper.CommandText = "DELETE FROM BasDefaultPermission WHERE PermissionItemGUID=@PermissionItemGUID AND PermissionType=@PermissionType";
                dbhelper.AddParameter("@PermissionItemGUID", aPurview.GUID);
                dbhelper.AddParameter("@PermissionType", aPurview.PurviewType);

                dbhelper.ExecuteNonQuery();
            }
            catch (Exception ex)
            {
                ICSharpCode.Core.LoggingService<SaveDefaultPurviewAction>.Error("保存默认权限失败-delete:" + ex.Message, ex);
            }
        }
    }
}