using CommonLib.IO;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace DataCollectionSystem
{
    public partial class DlgBatchExportForm : Form
    {
        public DlgBatchExportForm()
        {
            InitializeComponent();
        }

        public List<FileInfo> fileinfos { get; private set; } = null;
        private void DlgBatchExportForm_Load(object sender, EventArgs e)
        {
            fileinfos = CommonFile.GetAllFilesInDirectory(FileDirectory, "*.cap").OrderBy(fileinfo => {
                var fileNames = Path.GetFileNameWithoutExtension(fileinfo.FullName).Split('-');
                int count = fileNames.Count();
                string StrSubTime = "0";
                if(count>0)
                    StrSubTime=  fileNames[count - 1];
                int t = int.Parse(StrSubTime);
                return t;
                }).ToList();
            FileInfo[] fileinfostart = CommonFile.GetAllFilesInDirectory(FileDirectory,$"{StartFileName}.cap").ToArray();

            DateTime dtStartTime =  fileinfostart[0].CreationTime;

            for(int i=fileinfos.Count-1;i>=0 ;i--)
            {
                if(fileinfos[i].CreationTime< dtStartTime)
                {
                    fileinfos.RemoveAt(i);
                }
            }
             
            foreach(var file in fileinfos)
            {
                string FileName = Path.GetFileNameWithoutExtension(file.FullName );
                cmbStartFile.Items.Add(FileName);
                cmbEndFile.Items.Add(FileName);
            }
            cmbStartFile.SelectedText = this.StartFileName;
            cmbEndFile.SelectedText = this.StartFileName; 
            this.EndFileName = this.StartFileName; ;
        }

        void RemoveInvalidateFile()
        {
            Func<string, int> GetSubIndex = (string FileName) =>
             {
                 var fileNames = FileName.Split('-');
                 int count = fileNames.Count();
                 string StrSubTime = "0";
                 if (count > 0)
                     StrSubTime = fileNames[count - 1];
                 int t = int.Parse(StrSubTime);
                 return t;
             };
            FileInfo[] fileinfostart = CommonFile.GetAllFilesInDirectory(FileDirectory, $"{StartFileName}.cap").ToArray();
            FileInfo[] fileinfosEnd = CommonFile.GetAllFilesInDirectory(FileDirectory, $"{EndFileName}.cap").ToArray();

            int dtStartTime = GetSubIndex(Path.GetFileNameWithoutExtension( fileinfostart[0].FullName));
            int dtEndTime = GetSubIndex(Path.GetFileNameWithoutExtension(fileinfosEnd[0].FullName)); 


            for (int i = fileinfos.Count - 1; i >= 0; i--)
            {
                int dtSubTime = GetSubIndex(Path.GetFileNameWithoutExtension(fileinfos[i].FullName));  
                if((dtSubTime> dtEndTime)||(dtSubTime< dtStartTime))
                {
                    fileinfos.RemoveAt(i);
                }
            } 
        }

        private void BtnOK_Click(object sender, EventArgs e)
        {
            RemoveInvalidateFile();
        }

        private void cmbStartFile_SelectedIndexChanged(object sender, EventArgs e)
        {
            this.StartFileName = cmbStartFile.SelectedItem.ToString();

        }

        private void cmbEndFile_SelectedIndexChanged(object sender, EventArgs e)
        {
            this.EndFileName = cmbEndFile.SelectedItem.ToString(); ;

        }
    }
}