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;
using System.Xml.Linq;
using System.IO;
using System.Configuration;
using ManagementSystem.Utility;

namespace ManagementSystem
{
    public partial class CurrencySetting : Form
    {
        //變數宣告
        public string strOwnerForm = "";  //設定表單的擁有者
        string strXMLName = "CurrencySetting";  //XML的名稱

        public CurrencySetting()
        {
            InitializeComponent();
        }

        #region 自定義程式
        private void CleanForm()
        {
            dgvDataMaintain.Rows.Clear();
        }
        
        #endregion

        #region 事件觸發及問題處理
        private void btnCancle_Click(object sender, EventArgs e)
        {
            this.Close();
        }

        private void dgvDataMaintain_CellContentClick(object sender, DataGridViewCellEventArgs e)
        {
            
        }

        private void dgvDataMaintain_RowsAdded(object sender, DataGridViewRowsAddedEventArgs e)
        {
            DataGridViewComboBoxCell cbCell = (DataGridViewComboBoxCell)dgvDataMaintain.Rows[e.RowIndex].Cells["cCurrency"];
            if (cbCell.Items.Count == 0)
            {
                cbCell.DataSource = UtilityClass.GetSystemArgument("Currency", "zh-TW").Tables["Arguments"];
                cbCell.DisplayMember = "ArgumentValue";
                cbCell.ValueMember = "ArgumentID";
            }
        }

        private void dgvDataMaintain_CellEnter(object sender, DataGridViewCellEventArgs e)
        {
            DataGridViewComboBoxCell cbCell = (DataGridViewComboBoxCell)dgvDataMaintain.Rows[e.RowIndex].Cells["cCurrency"];
            if (cbCell.Items.Count == 0)
            {
                cbCell.DataSource = UtilityClass.GetSystemArgument("Currency", "zh-TW").Tables["Arguments"];
                cbCell.DisplayMember = "ArgumentValue";
                cbCell.ValueMember = "ArgumentID";
            }
        }

        private void btnClean_Click(object sender, EventArgs e)
        {
            CleanForm();
        }

        private void dgvDataMaintain_RowValidating(object sender, DataGridViewCellCancelEventArgs e)
        {
            //宣告物件
            string strErrorMsg = "";
            string strCurrency = (string)dgvDataMaintain.Rows[e.RowIndex].Cells["cCurrency"].Value;
            string strCurrencyRate = (string)dgvDataMaintain.Rows[e.RowIndex].Cells["cCurrencyRate"].Value;
            if (!dgvDataMaintain.Rows[e.RowIndex].IsNewRow)
            {
                if ((string.IsNullOrEmpty(strCurrency.Trim()) ? "" : strCurrency) == "")
                {
                    strErrorMsg = "請選擇幣別";
                }

                if ((string.IsNullOrEmpty(strCurrencyRate.Trim()) ? "" : strCurrencyRate) == "")
                {
                    strErrorMsg = "請輸入匯率";
                }
                else if (!UtilityClass.IsNumber(strCurrencyRate.Trim()))
                {
                    strErrorMsg = "匯率必須為數值";
                }
            }

            if (strErrorMsg != "")
            {
                dgvDataMaintain.Rows[e.RowIndex].ErrorText = strErrorMsg;
                e.Cancel = true;
            }
        }

        private void dgvDataMaintain_RowValidated(object sender, DataGridViewCellEventArgs e)
        {
            dgvDataMaintain.Rows[e.RowIndex].ErrorText = "";
        }

        private void btnConfirm_Click(object sender, EventArgs e)
        {
            try
            {
                string strXMLPath = ConfigurationManager.AppSettings["XMLFilePath"].ToString();
                XElement xmlRoot = new XElement("Root");                
                foreach (DataGridViewRow drData in dgvDataMaintain.Rows)
                {
                    if (!drData.IsNewRow)
                    {
                        XElement xmlContent = new XElement("Currency");
                        xmlRoot.Add(xmlContent);
                        XElement xmlSub = new XElement("CurrencyID", drData.Cells[0].Value.ToString());
                        xmlSub.Add(new XAttribute("CurrencyRate", drData.Cells[1].Value.ToString())); 
                        xmlContent.Add(xmlSub);

                    }
                }
                if (!File.Exists(strXMLPath))
                {
                    UtilityClass.CreateDir(strXMLPath);
                }
                xmlRoot.Save(strXMLPath + strXMLName + ".xml");
                MessageBox.Show("設定完成", "提示");
                this.Close();
            }
            catch (Exception ex)
            {
                MessageBox.Show("設定錯誤", "提示");
                ErrorHandler.WriteErrorLog("CurrencySetting.cs", ex);
                this.Close();
            }
        }

        private void CurrencySetting_Load(object sender, EventArgs e)
        {
            string strXMLPath = ConfigurationManager.AppSettings["XMLFilePath"].ToString() + strXMLName + ".xml";
            if (File.Exists(strXMLPath))
            {
                XDocument xmlContent = XDocument.Load(strXMLPath);

                foreach (XElement xmlData in xmlContent.Descendants("Currency"))
                {
                    DataGridViewRow dgvRow = new DataGridViewRow();
                    dgvRow.CreateCells(dgvDataMaintain);
                    dgvRow.Cells[1].Value = xmlData.Element("CurrencyID").Value.ToString();
                    dgvRow.Cells[2].Value = xmlData.Element("CurrencyID").Attribute("CurrencyRate").Value.ToString();
                    dgvDataMaintain.Rows.Add(dgvRow);
                }
            }
        }
        #endregion

    }
}