using DevExpress.XtraGrid.Columns;
using ReportTemplateTool.Models;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Windows.Forms;

namespace ReportTool.Views
{
    public partial class LisReportFileForm : BaseView
    {
        private string _reportFileCode = "";
        private List<DictReportFile> _reportFiles = new List<DictReportFile>();
        public LisReportFileForm(string code)
        {
            InitializeComponent();
            Load += (s, e) =>
            {
                this.GetReportFileAllData();
            };
            this._reportFileCode = code;

            UploadBtn.Click += UploadBtnClick;
            DownloadBtn.Click += DownloadBtnClick;
            DelBtn.Click += DelBtnClick;
            SaveBtn.Click += SaveBtnClick;
        }

        private void GetReportFileAllData()
        {
            _reportFiles = _db.DictReportFile.Where(p => p.Code == _reportFileCode).ToList();
            if (this._reportFileCode == "Lis")
            {
                foreach (DictReportFile file in _reportFiles)
                {
                    file.SampleCodes = string.Join(",", _db.DictReport.Where(p => (p.FileName + ".frx") == file.FileName).Select(p => p.SampleCode).ToList());
                }
            }
            Invoke(new Action(() => { ReportFileControl.DataSource = _reportFiles; }));
        }

        private void UploadBtnClick(object sender, EventArgs e)
        {
            using (OpenFileDialog openFileDialog = new OpenFileDialog())
            {
                openFileDialog.InitialDirectory = "D:\\ProgramCode\\company\\LisWeb\\liswebsvn\\LisWeb\\ReportFiles";
                openFileDialog.RestoreDirectory = true;
                openFileDialog.Multiselect = true;
                openFileDialog.Title = "选择多个文件";
                openFileDialog.Filter = "模版文件 (*.frx)|*.frx";
                openFileDialog.FilterIndex = 2;
                //openFileDialog.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);

                if (openFileDialog.ShowDialog() == DialogResult.OK)
                {
                    List<DictReportFile> _addReportFiles = new List<DictReportFile>();
                    List<DictReportFile> _updateReportFiles = new List<DictReportFile>();
                    foreach (string filePath in openFileDialog.FileNames)
                    {
                        FileInfo fileInfo = new FileInfo(filePath);
                        DictReportFile _reportFile = _reportFiles.FirstOrDefault(p => p.FileName == fileInfo.Name);
                        if (_reportFile != null)
                        {
                            _reportFile.File = File.ReadAllBytes(filePath);
                            _reportFile.UpdateTime = DateTime.Now;
                            _updateReportFiles.Add(_reportFile);
                        }
                        else
                        {
                            _addReportFiles.Add(new DictReportFile
                            {
                                Code = _reportFileCode,
                                FileName = fileInfo.Name,
                                File = File.ReadAllBytes(filePath),
                                UpdateTime = DateTime.Now
                            });
                        }
                    }
                    string message = $"新上传文件{_addReportFiles.Count}个";
                    if (_updateReportFiles.Count > 0)
                    {
                        message += $"，{string.Join(",", _updateReportFiles.Select(p => p.FileName).ToList())}等已存储文件将会被更新，是否确认上传？";
                    }
                    DialogResult result = MessageBox.Show( message, "操作确认", MessageBoxButtons.YesNo, MessageBoxIcon.Question);

                    if (result == DialogResult.Yes)
                    {
                        _db.DictReportFile.AddRange(_addReportFiles);
                        _db.SaveChanges();
                    }
                    this.GetReportFileAllData();
                }
            }
        }

        private void DownloadBtnClick(object sender, EventArgs e)
        {
            if (ReportFileGrid.SelectedRowsCount > 0)
            {
                using (FolderBrowserDialog folderDialog = new FolderBrowserDialog())
                {
                    List<string> failFile = new List<string>();
                    int successCount = ReportFileGrid.SelectedRowsCount;
                    if (folderDialog.ShowDialog() == DialogResult.OK)
                    {
                        foreach (var file in _reportFiles.Where(p => ReportFileGrid.GetSelectedRows().Contains(_reportFiles.IndexOf(p))))
                        {
                            if (file != null)
                            {
                                bool saveStatus = DownloadFile(file, folderDialog.SelectedPath);
                                if (!saveStatus)
                                {
                                    failFile.Add(file.FileName);
                                    successCount--;
                                }
                            }
                        }
                        MessageBox.Show($"选择文件{ReportFileGrid.SelectedRowsCount}个，下载成功{successCount}个，下载失败{failFile.Count}个!", "成功", MessageBoxButtons.OK, MessageBoxIcon.Information);
                    }
                }
            }
            else
            {
                MessageBox.Show("请先选择要下载的文件！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);
            }
        }

        private bool DownloadFile(DictReportFile file, string savePath)
        {
            try
            {
                string _filename = file.FileName;
                if (!_filename.Contains(".frx")) _filename +=  ".frx";
                File.WriteAllBytes(Path.Combine(savePath, _filename), file.File);
                return true;
            }
            catch (Exception ex)
            {
                return false;
            }
        }

        private void DelBtnClick(object sender, EventArgs e)
        {
            if (ReportFileGrid.SelectedRowsCount == 0) return;
            DialogResult result = MessageBox.Show($"是否删除所选中的{ReportFileGrid.SelectedRowsCount}个报告单模版文件数据？", "操作确认", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
            if (result == DialogResult.Yes)
            {
                foreach (var file in _reportFiles.Where(p => ReportFileGrid.GetSelectedRows().Contains(_reportFiles.IndexOf(p))))
                {
                    _db.DictReportFile.Remove(file);
                }
                _db.SaveChanges();
                this.GetReportFileAllData();
            }
        }

        private void SaveBtnClick(object sender, EventArgs e)
        {
            for (int i = 0; i < ReportFileGrid.DataRowCount; i++)
            {
                long ID = Convert.ToInt64(ReportFileGrid.GetRowCellValue(i, "ID").ToString());
                string fileName = (ReportFileGrid.GetRowCellValue(i, "FileName").ToString() as string);
                _db.Database.ExecuteSqlCommand($"update Dict_ReportFile set FileName = '{fileName}', UpdateTime = '{DateTime.Now}' where ID = {ID} and FileName <> '{fileName}'");
            }
            this.GetReportFileAllData();
        }
    }
}