using System;

using System.Windows.Forms;
using bsmd.database;


namespace CoreDeleteTool
{
    public partial class Main : Form
    {

        private readonly SortableBindingList<MessageCore> messageCores = new SortableBindingList<MessageCore>();

        public Main()
        {
            InitializeComponent();
        }

        #region overrides

        protected override void OnLoad(EventArgs e)
        {
            base.OnLoad(e);

            if (DBManager.Instance.Connect(Properties.Settings.Default.ConnectionString))
            {
               
            } 
            else
            {
                MessageBox.Show("Cannot connect to database!");              
            }

            
        }

        #endregion

        #region event handler

        private void buttonDelete_Click(object sender, EventArgs e)
        {
            if ((this.dataGridView.SelectedRows.Count > 0) && DBManager.Instance.IsConnected)
            {
                if (MessageBox.Show("Delete selected item(s)?", "Confirmation", MessageBoxButtons.YesNo, MessageBoxIcon.Question, MessageBoxDefaultButton.Button2) == DialogResult.Yes)
                {
                    this.toolStripProgressBar.Maximum = this.dataGridView.SelectedRows.Count;
                    this.toolStripStatusLabel.Text = string.Format("Removing {0} items..", this.dataGridView.SelectedRows.Count);
                    int total = this.dataGridView.SelectedRows.Count;
                    
                    for (int i = 0; i < this.dataGridView.SelectedRows.Count; i++)
                    {
                        if (this.dataGridView.SelectedRows[i].DataBoundItem is MessageCore selectedCore)
                        {
                            DBManager.Instance.DeleteCore(selectedCore);
                            this.messageCores.Remove(selectedCore);
                            this.toolStripProgressBar.Value = i;
                            this.toolStripStatusLabel.Text = string.Format("Removed {0}/{1}", (i + 1), total);
                            Application.DoEvents();
                        }
                    }                    
                }
            }
        }

        private void buttonClose_Click(object sender, EventArgs e)
        {
            this.Close();
        }

        private void dataGridView_DataBindingComplete(object sender, DataGridViewBindingCompleteEventArgs e)
        {
            foreach (DataGridViewColumn column in dataGridView.Columns)
            column.SortMode = DataGridViewColumnSortMode.Automatic;
        }

        private void menuStripDelete_ItemClicked(object sender, ToolStripItemClickedEventArgs e)
        {
            this.buttonDelete_Click(sender, new EventArgs());
        }        

        private void buttonLoadOld_Click(object sender, EventArgs e)
        {
            this.messageCores.Clear();
            foreach (MessageCore mc in DBManager.Instance.GetMessageCoresOlderThan((int)this.numericUpDown1.Value))
                this.messageCores.Add(mc);
            this.dataGridView.DataSource = this.messageCores;
            this.toolStripStatusLabel.Text = string.Format("{0} cores found", this.messageCores.Count);
        }

        private void buttonLoadAll_Click(object sender, EventArgs e)
        {
            foreach (MessageCore mc in DBManager.Instance.GetMessageCoresByStatus(MessageCore.BSMDStatus.PREPARE))
                this.messageCores.Add(mc);
            this.dataGridView.DataSource = this.messageCores;
            this.toolStripStatusLabel.Text = string.Format("{0} cores found", this.messageCores.Count);
        }        

        private void buttonDeleteAll_Click(object sender, EventArgs e)
        {
            if (DBManager.Instance.IsConnected)
            {
                if (MessageBox.Show("Delete all items?", "Confirmation", MessageBoxButtons.YesNo, MessageBoxIcon.Question, MessageBoxDefaultButton.Button2) == DialogResult.Yes)
                {
                    Application.UseWaitCursor = true;
                    int total = this.messageCores.Count;
                    this.toolStripProgressBar.Maximum = this.messageCores.Count;                    

                    for (int i = 0; i < this.messageCores.Count; i++)
                    {
                        MessageCore selectedCore = this.messageCores[i];
                        DBManager.Instance.DeleteCore(selectedCore);                        
                        this.toolStripProgressBar.Value = i;
                        this.toolStripStatusLabel.Text = string.Format("Removed {0}/{1}", (i + 1), total);
                        Application.DoEvents();
                    }
                    Application.UseWaitCursor = false;
                    this.messageCores.Clear();
                }
            }
        }

        #endregion

    }
}