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 * with or without modification, are permitted provided 
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 * 
 * *   Redistributions of source code must retain the above 
 *     copyright notice, this list of conditions and the 
 *     following disclaimer. 
 * *   Redistributions in binary form must reproduce the above 
 *     copyright notice, this list of conditions and the 
 *     following disclaimer in the documentation and/or other 
 *     materials provided with the distribution. 
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 
 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
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using System;
using System.Collections.Generic;
using System.Windows.Forms;
using System.Linq;
using XenAdmin.Controls;
using XenAdmin.Core;
using XenAdmin.Network;
using XenAPI;
using XenAdmin.Actions;
using System.Drawing;
using System.Globalization;


namespace XenAdmin.Dialogs
{
    public partial class ConvertToThinSRDialog : XenDialogBase
    {
        private readonly SR TheSR;

        public ConvertToThinSRDialog(IXenConnection connection, SR sr)
            :base(connection)
        {
            if (connection == null) throw new ArgumentNullException("connection");
            if (sr == null) throw new ArgumentNullException("sr");

            InitializeComponent();
            InitDialog(connection);
         
   			this.connection = connection;
            TheSR = sr;

            this.Text = string.Format(Messages.ACTION_SR_UPGRADE_TO_THIN, TheSR.Name);
        }

        private void InitDialog(IXenConnection connection)
        {
            this.Owner = Program.MainWindow;
        }

        private void LoadValues()
        {
            SetupDropDowns();
            OkButton.Text = Messages.OK;
        }

        private void SetupDropDowns()
        {
            //todo set the defaults (this will have to be done after the API has been changed to use bytes instead of %
        }

        private void OkButton_Click(object sender, EventArgs e)
        {
            new XenAdmin.Actions.SrAction(SrActionKind.ConvertToThin, TheSR, NewSMConfig).RunAsync();
            
            DialogResult = DialogResult.OK;
            Close();
        }

        public Dictionary<string, string> NewSMConfig
        {
            get
            {
                var smconfig = new Dictionary<string, string>();

                if (allocationQuantumNumericUpDown.Enabled && initialAllocationNumericUpDown.Enabled)
                {
                    smconfig["allocation"] = "dynamic";
                    smconfig["allocation_quantum"] = (allocationQuantumNumericUpDown.Value / 100).ToString(CultureInfo.InvariantCulture);
                    smconfig["initial_allocation"] = (initialAllocationNumericUpDown.Value / 100).ToString(CultureInfo.InvariantCulture);
                }

                return smconfig;
            }
        }
  
        private void updateErrorsAndButtons()
        {
            if (this.TheSR == null)
                return;

            //todo gabor: check thin prov related values?

            OkButton.Enabled = true;
        }

        private void CloseButton_Click(object sender, EventArgs e)
        {
            DialogResult = DialogResult.Cancel;
            Close();
        }

        bool userChangedInitialAllocationValue = false;
        bool userEntered = false;
        
        private void initialAllocationNumericUpDown_ValueChanged(object sender, EventArgs e)
        {
            if (userEntered)
                userChangedInitialAllocationValue = true;

            //if (userChangedInitialAllocationValue)
            //    UpdateDiskSize();
        }

        private void initialAllocationNumericUpDown_Enter(object sender, EventArgs e)
        {
            userEntered = true;
        }

        internal override string HelpName
        {
            get
            {
                return "ConvertToThinSRDialog";
            }
        }


        private void initialAllocationNumericUpDown_Leave(object sender, EventArgs e)
        {
            userEntered = false;
        }
    }
}