using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

using Mesnac.Basic;
using Mesnac.Gui.Edit.Common;
using Mesnac.PlugIn.View;
using Mesnac.Gui.Edit.Dialog;
using Mesnac.Gui.Edit.Pad;

namespace Mesnac.Gui.Edit.ViewContent
{
    public partial class FrmDataSource : DefaultViewContent
    {
        public FrmDataSource()
        {
            InitializeComponent();

            this.RefreshLvDataSource(); //刷新数据源
        }

        /// <summary>
        /// 刷新列表视图中的数据源数据
        /// </summary>
        public void RefreshLvDataSource()
        {
            this.lvDataSource.Items.Clear();
            //重置工程数据源工厂
            DisplayUtil<ProjectWindow>.ResetProjectDataSourceFactory();//重置工程
            Dictionary<string, Mesnac.Basic.DataSourceItem> datasources = DataSourceFactory.Instance.DataSources;
            if (datasources != null)
            {
                ListViewItem lvItem = null;
                foreach (Mesnac.Basic.DataSourceItem dataSourceItem in datasources.Values)
                {
                    lvItem = new ListViewItem();
                    lvItem.Text = dataSourceItem.Name;
                    lvItem.SubItems.Add(dataSourceItem.Driver);
                    lvItem.SubItems.Add(dataSourceItem.Server);
                    lvItem.SubItems.Add(dataSourceItem.UserName);
                    lvItem.SubItems.Add(dataSourceItem.Password);
                    lvItem.SubItems.Add(dataSourceItem.Database);
                    lvItem.SubItems.Add(dataSourceItem.ConnectionTimeout.ToString());
                    //lvItem.SubItems.Add(dataSourceItem.DriverClass);
                    //lvItem.SubItems.Add(dataSourceItem.DataSourceClass);
                    this.lvDataSource.Items.Add(lvItem);
                }
            }
        }

        //新建数据源
        private void mnuNewDataSource_Click(object sender, EventArgs e)
        {
            FrmNewDataSource frmNewDataSource = new FrmNewDataSource();
            DialogResult result = frmNewDataSource.ShowDialog(this);
            if (result == DialogResult.OK)
            {
                this.RefreshLvDataSource();
            }
        }
        //编辑数据源
        private void mnuEditDataSource_Click(object sender, EventArgs e)
        {
            if (this.lvDataSource.SelectedItems.Count > 0)
            {
                ListViewItem viewItem = this.lvDataSource.SelectedItems[0];
                FrmNewDataSource frmNewDataSource = new FrmNewDataSource(viewItem.Text);
                DialogResult result = frmNewDataSource.ShowDialog(this);
                if (result == DialogResult.OK)
                {
                    this.RefreshLvDataSource();
                }
            }
        }
        //删除数据源
        private void mnuDelDataSource_Click(object sender, EventArgs e)
        {
            if (this.lvDataSource.SelectedItems.Count > 0)
            {
                ListViewItem viewItem = this.lvDataSource.SelectedItems[0];
                DialogResult result = MessageBox.Show("确定要删除吗?", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
                if (result == DialogResult.Yes)
                {
                    DataSourceFactory.Instance.Remove(viewItem.Text);
                    DisplayUtil<ProjectWindow>.SaveProjectDataSource();     //更新至文件
                    this.RefreshLvDataSource();     //刷新视图列表
                }
            }
        }
        //选中数据源列出数据源下的数据对象
        private void lvDataSource_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (this.lvDataSource.SelectedItems.Count==1)
            {
                this.lvDataObject.Items.Clear();
                this.lvDataObjectDetails.Items.Clear();

                ListViewItem item = this.lvDataSource.SelectedItems[0];
                TreeNode root = DataSourceFactory.Instance.Root;
                TreeNode dataSourceNode = null;
                foreach (TreeNode node in root.Nodes)
                {
                    if (node.Text == item.Text)
                    {
                        dataSourceNode = node;
                        break;
                    }
                }
                if (dataSourceNode != null)
                {
                    ListViewItem lvItem = null;
                    //数据对象
                    foreach (TreeNode dataObjectsNode in dataSourceNode.Nodes)
                    {
                        foreach (TreeNode dataObjectNode in dataObjectsNode.Nodes)
                        {
                            lvItem = new ListViewItem();
                            lvItem.Text = dataObjectNode.Text;
                            lvItem.Tag = dataObjectNode;
                            lvItem.SubItems.Add(dataObjectsNode.Text);
                            this.lvDataObject.Items.Add(lvItem);
                        }
                    }
                }
            }
        }
        /// <summary>
        /// 选中数据对象，列出数据对象下的列信息
        /// </summary>
        private void lvDataObject_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (this.lvDataObject.SelectedItems.Count == 1)
            {
                this.lvDataObjectDetails.Items.Clear();

                ListViewItem item = this.lvDataObject.SelectedItems[0];
                TreeNode dataObjectNode = item.Tag as TreeNode;
                if (dataObjectNode != null)
                {
                    foreach(TreeNode detailsNode in dataObjectNode.Nodes)
                    {
                        ListViewItem lvItem = new ListViewItem();
                        lvItem.Text = detailsNode.Text;

                        this.lvDataObjectDetails.Items.Add(lvItem);
                    }
                }
            }
        }

        private void lvDataSource_MouseDoubleClick(object sender, MouseEventArgs e)
        {
            mnuEditDataSource.PerformClick();
        }
    }
}