using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace AllBase
{
    public class OutExcel
    {
        /// <summary>
        /// 保存数据
        /// </summary>
        /// <param name="path"></param>
        /// <param name="dt"></param>
        /// <returns></returns>
        public static bool SaveFile(string path, DataGridView dt)
        {
            string temp = "";
            for (int i = 0; i < dt.ColumnCount; i++)
            {
                if (dt.Columns[i].Visible && dt.Columns[i].HeaderText != "删除" && dt.Columns[i].HeaderText != "历史记录")
                    temp += dt.Columns[i].HeaderText + "\t";
            }
            if (!string.IsNullOrEmpty(temp))
                temp += "\r\n";
            try
            {
                if (File.Exists(path))
                    File.Delete(path);
                File.WriteAllText(path, temp, Encoding.Unicode);
                temp = "";
            }
            catch
            {
                return false;
            }
            for (int i = 0; i < dt.RowCount; i++)
            {
                for (int j = 0; j < dt.ColumnCount; j++)
                {
                    if (dt.Columns[j].Visible && dt.Columns[j].HeaderText != "删除" && dt.Columns[j].HeaderText != "历史记录")
                        temp += "\"" + dt.Rows[i].Cells[j].Value + "\"\t";
                }
                temp += "\r\n";
                if (temp.Length > 2000)
                {
                    try
                    {
                        File.AppendAllText(path, temp, Encoding.Unicode);
                        temp = "";
                    }
                    catch
                    {
                        //return false;
                    }
                }
            }
            if (string.IsNullOrEmpty(temp))
                return true;
            try
            {
                File.AppendAllText(path, temp, Encoding.Unicode);
            }
            catch
            {
                return false;
            }
            return true;
        }

        public static bool SaveFileCheckBox(string patch, DataGridView dt)
        {
            string temp = "";
            for (int i = 0; i < dt.ColumnCount; i++)
            {
                if (dt.Columns[i].HeaderText != "删除" && dt.Columns[i].HeaderText != "全选")
                    temp += dt.Columns[i].HeaderText + "\t";
            }
            if (!string.IsNullOrEmpty(temp))
                temp += "\r\n";
            try
            {
                if (File.Exists(patch))
                    File.Delete(patch);
                File.WriteAllText(patch, temp, Encoding.Unicode);
                temp = "";
            }
            catch
            {
                return false;
            }
            for (int i = 0; i < dt.RowCount; i++)
            {
                if (bool.Parse(dt.Rows[i].Cells["isCheckBoxColumny"].Value.ToString()) == false)
                {
                    continue;
                }
                for (int j = 0; j < dt.ColumnCount; j++)
                {
                    if (dt.Columns[j].HeaderText != "删除" && dt.Columns[j].HeaderText != "全选")
                    {
                        temp += dt.Rows[i].Cells[j].Value + "\t";
                    }
                }
                temp += "\r\n";
                if (temp.Length > 2000)
                {
                    try
                    {
                        File.AppendAllText(patch, temp, Encoding.Unicode);
                        temp = "";
                    }
                    catch
                    {
                        //return false;
                    }
                }
            }
            if (string.IsNullOrEmpty(temp))
                return true;
            try
            {
                File.AppendAllText(patch, temp, Encoding.Unicode);
            }
            catch
            {
                return false;
            }
            return true;
        }

        public static bool SaveFile(string path, bool isNewFile, bool isShowHideColumn, List<DataGridViewRow> dgvRows, params string[] exceptHeaderText)
        {
            if (dgvRows == null || dgvRows.Count == 0) return false;
            var dt = dgvRows.FirstOrDefault()?.DataGridView;
            if (dt == null) return false;

            string temp = "";
            if (isNewFile)
            {
                for (int i = 0; i < dt.ColumnCount; i++)
                {
                    if ((isShowHideColumn || dt.Columns[i].Visible) && !exceptHeaderText.Contains(dt.Columns[i].HeaderText))
                        temp += "\"" + dt.Columns[i].HeaderText + "\"\t";
                }
                if (!string.IsNullOrEmpty(temp))
                    temp += "\r\n";
                try
                {

                    if (File.Exists(path))
                        File.Delete(path);
                    File.WriteAllText(path, temp, Encoding.Unicode);
                    temp = "";
                }
                catch
                {
                    return false;
                }
            }
            for (int i = 0; i < dt.RowCount; i++)
            {
                if (!dgvRows.Contains(dt.Rows[i]))
                    continue;

                for (int j = 0; j < dt.ColumnCount; j++)
                {
                    if ((isShowHideColumn || dt.Columns[j].Visible) && !exceptHeaderText.Contains(dt.Columns[j].HeaderText))
                        temp += "\"" + dt.Rows[i].Cells[j].Value + "\"\t";
                }
                temp += "\r\n";
                if (temp.Length > 2000)
                {
                    try
                    {
                        File.AppendAllText(path, temp, Encoding.Unicode);
                        temp = "";
                    }
                    catch
                    {
                        try
                        {
                            if (File.Exists(path))
                                File.Delete(path);
                        }
                        catch
                        {
                        }
                        return false;
                    }
                }
            }
            if (string.IsNullOrEmpty(temp))
                return true;
            try
            {
                File.AppendAllText(path, temp, Encoding.Unicode);
            }
            catch
            {
                try
                {
                    if (File.Exists(path))
                        File.Delete(path);
                }
                catch
                {
                }
                return false;
            }
            return true;
        }
    }
}