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 Mip
{
    public partial class frmEditPoziadavka : Form
    {
        Int32 IDZ;
        DataTable tblPoziadavka;
        byte[] FileData = null;
        byte[] originalFileData = null;
        
        private AutoCompleteStringCollection acscNazov = new AutoCompleteStringCollection();
        private AutoCompleteStringCollection acscFirmy = new AutoCompleteStringCollection();
        private AutoCompleteStringCollection acscTypy = new AutoCompleteStringCollection();
        private AutoCompleteStringCollection acscPoznamky = new AutoCompleteStringCollection();

        public frmEditPoziadavka(Int32 _IDZiadanka)
        {
            InitializeComponent();
            IDZ = _IDZiadanka;

            string cmd;
            cmd = "SELECT * FROM `pohlad-ziadanka` WHERE `IDZiadanka` = " + IDZ.ToString() + ";";
            classSQL.SQL(cmd, out tblPoziadavka);

            this.Text = "Požiadavka č.: " + IDZ.ToString() + "    Status žiadanky: " + tblPoziadavka.Rows[0]["Status žiadanky"].ToString();
            tbNazov.Text = tblPoziadavka.Rows[0]["Názov"].ToString();
            tbFirma.Text = tblPoziadavka.Rows[0]["FirmaMenoID"].ToString();
            tbTyp.Text = tblPoziadavka.Rows[0]["Typ"].ToString();
            tbPoznamka.Text = tblPoziadavka.Rows[0]["Poznámka"].ToString();
            dtpTermin.Value = Convert.ToDateTime(tblPoziadavka.Rows[0]["Termín"]);
            nudPocet.Value = Convert.ToInt32(tblPoziadavka.Rows[0]["Počet kusov"]);

            DataTable tab;
            cmd = "SELECT Názov, Typ, Poznámka, Cena FROM tabziadanka";
            classSQL.SQL(cmd, out tab);

            foreach (DataRow dr in tab.Rows)
            {
                acscNazov.Add(dr["Názov"].ToString());
                acscTypy.Add(dr["Typ"].ToString());
                acscPoznamky.Add(dr["Poznámka"].ToString());
            }

            DataTable tabZoznamFiriem;
            cmd = "select `IDFirma`, `FirmaMeno`, concat(`FirmaMeno`,'   (',`IDFirma`, ')') as FirmaMenoID from `tabfirmy`";
            classSQL.SQL(cmd, out tabZoznamFiriem);
            foreach (DataRow dr in tabZoznamFiriem.Rows) { acscFirmy.Add(dr["FirmaMenoID"].ToString()); }

            tbNazov.AutoCompleteSource = AutoCompleteSource.CustomSource;
            tbNazov.AutoCompleteMode = AutoCompleteMode.Suggest;
            tbNazov.AutoCompleteCustomSource = acscNazov;
            tbPoznamka.AutoCompleteSource = AutoCompleteSource.CustomSource;
            tbPoznamka.AutoCompleteMode = AutoCompleteMode.Suggest;
            tbPoznamka.AutoCompleteCustomSource = acscPoznamky;
            tbTyp.AutoCompleteSource = AutoCompleteSource.CustomSource;
            tbTyp.AutoCompleteMode = AutoCompleteMode.Suggest;
            tbTyp.AutoCompleteCustomSource = acscTypy;
            tbFirma.AutoCompleteSource = AutoCompleteSource.CustomSource;
            tbFirma.AutoCompleteMode = AutoCompleteMode.Suggest;
            tbFirma.AutoCompleteCustomSource = acscFirmy;

            cmd = "select `NakresData` from `tabziadankanakres` where `IDZiadanka` = " + IDZ.ToString() + ";";
            classSQL.SQL(cmd, out FileData);
            originalFileData = FileData;
            if(FileData != null)
            {
                btnDeletePicture.Enabled = true;
                btnAddPicture.Image = global::Mip.Properties.Resources.image_icon;
            }

        }

        private void btnOK_Click(object sender, EventArgs e)
        {

            string IDFirma = "";
            string strNazov = "";
            //int lastIndex = 0;

            strNazov = tbFirma.Text;
            if (strNazov != "")
            {
                IDFirma = strNazov.Substring(strNazov.IndexOf("(") + 1, strNazov.Length - strNazov.IndexOf("(") - 2);
                Int32 n;
                bool isNumeric = int.TryParse(IDFirma, out n);

                if (isNumeric == false)
                {
                    Int32 intLastIndex = 0;
                    string insertCMD = "";
                    insertCMD = @"INSERT INTO `mip`.`tabfirmy` (`FirmaMeno`) VALUES ('" + strNazov + "');";
                    classSQL.SQL(insertCMD, out intLastIndex);
                    IDFirma = intLastIndex.ToString();
                    MessageBox.Show("Nová firma s názvom '" + strNazov + "' bola pridaná! \nPre doplnenie údajov o firme treba editovať firmu na karte 'Zoznam firiem'.");
                }
            }
            
            string cmd = @"UPDATE `mip`.`tabziadanka` SET 
                `Názov` = '" + tbNazov.Text + 
                "', `Firma` = '" + IDFirma +
                "', `Typ` = '" + tbTyp.Text +
                "', `Poznámka` = '" + tbPoznamka.Text +
                "', `Termín` = '" + Convert.ToDateTime(dtpTermin.Value).ToString("yyyy-MM-dd") +
                "', `Počet kusov` = " + nudPocet.Value.ToString() +
                " WHERE `IDZiadanka`=" + IDZ.ToString() + ";";
            classSQL.SQL(cmd);

            if (FileData != originalFileData) classSQL.SaveNakresToSQL(IDZ, FileData);

            this.Close();
        }

        private void btnZamietnut_Click(object sender, EventArgs e)
        {
            if(MessageBox.Show("Naozaj vymazať žiadanku?", "Mazanie...", MessageBoxButtons.YesNo) == DialogResult.Yes)
            {
                string cmd = "";
                cmd = @"UPDATE `mip`.`tabziadanka` SET `Status` = 'False' WHERE `IDZiadanka`=" + IDZ.ToString() + ";";
                classSQL.SQL(cmd);
                this.Close();                
            }
        }

        private void tbNazov_Enter(object sender, EventArgs e)
        {
            lblNazov.BackColor = Color.Coral;
        }

        private void tbNazov_Leave(object sender, EventArgs e)
        {
            lblNazov.BackColor = Color.Empty;
        }

        private void tbTyp_Enter(object sender, EventArgs e)
        {
            lblTyp.BackColor = Color.Coral;
        }

        private void tbTyp_Leave(object sender, EventArgs e)
        {
            lblTyp.BackColor = Color.Empty;
        }

        private void tbFirma_Enter(object sender, EventArgs e)
        {
            lblFirma.BackColor = Color.Coral;
        }

        private void tbFirma_Leave(object sender, EventArgs e)
        {
            lblFirma.BackColor = Color.Empty;
        }

        private void tbPoznamka_Enter(object sender, EventArgs e)
        {
            lblPoznamka.BackColor = Color.Coral;
        }

        private void tbPoznamka_Leave(object sender, EventArgs e)
        {
            lblPoznamka.BackColor = Color.Empty;
        }

        private void dtpTermin_Enter(object sender, EventArgs e)
        {
            lblTermin.BackColor = Color.Coral;
        }

        private void dtpTermin_Leave(object sender, EventArgs e)
        {
            lblTermin.BackColor = Color.Empty;
        }

        private void nudPocet_Enter(object sender, EventArgs e)
        {
            lblPocet.BackColor = Color.Coral;
        }

        private void nudPocet_Leave(object sender, EventArgs e)
        {
            lblPocet.BackColor = Color.Empty;
        }

        private void nudMnozstvo_Enter(object sender, EventArgs e)
        {
            lblMnozstvo.BackColor = Color.Coral;
        }

        private void nudMnozstvo_Leave(object sender, EventArgs e)
        {
            lblMnozstvo.BackColor = Color.Empty;
        }

        private void cbJednotka_Enter(object sender, EventArgs e)
        {
            lblJednotka.BackColor = Color.Coral;
        }

        private void cbJednotka_Leave(object sender, EventArgs e)
        {
            lblJednotka.BackColor = Color.Empty;
        }

        private void btnAddPicture_Click(object sender, EventArgs e)
        {
            int FileSize;
            OpenFileDialog ofd = new OpenFileDialog();
            FileStream fs;
            //bool bDataChange = false;
            //Button ctrl = sender as Button;

            //if (tabNoveZiadanky.Rows[Convert.ToInt32(ctrl.Parent.Name.ToString()) - 1].ItemArray[tabNoveZiadanky.Columns["Súborove Dáta"].Ordinal].ToString() == "")
            if (FileData == null)
                {
                if (ofd.ShowDialog() == DialogResult.OK)
                {
                    fs = new FileStream(ofd.FileName, FileMode.Open, FileAccess.Read);
                    FileSize = (int)fs.Length;

                    FileData = new byte[FileSize];
                    fs.Read(FileData, 0, FileSize);
                    fs.Close();

                    //tabNoveZiadanky.Rows[Convert.ToInt32(ctrl.Parent.Name.ToString()) - 1].SetField("Súborove Dáta", FileData);
                    btnDeletePicture.Enabled = true;
                    btnAddPicture.Image = global::Mip.Properties.Resources.image_icon;
                }
                else MessageBox.Show("Obrázok nebol vybraný!");
            }
            else
            {
                //FileData = (byte[])tabNoveZiadanky.Rows[Convert.ToInt32(ctrl.Parent.Name.ToString()) - 1].ItemArray[tabNoveZiadanky.Columns["Súborove Dáta"].Ordinal];

                Form showVykres = new frmShowVykres(FileData);
                showVykres.ShowDialog();
            }
        }

        private void btnDeletePicture_Click(object sender, EventArgs e)
        {
            FileData = null;
            
            btnDeletePicture.Enabled = false;
            btnAddPicture.Image = global::Mip.Properties.Resources.image_add_icon;
        }
    }
}