/* Copyright (c) Citrix Systems, Inc. 
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 * with or without modification, are permitted provided 
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 * 
 * *   Redistributions of source code must retain the above 
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 *     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 
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 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
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using System;
using System.Linq;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using XenAdmin.Controls;
using XenAPI;
using XenAdmin.Core;
using XenAdmin.Actions;
using XenAdmin.Actions.VMActions;

namespace XenAdmin.Dialogs.VMDialogs
{
    public partial class MoveVMDialog : XenDialogBase
    {
        private VM vm;

        public MoveVMDialog(VM vm)
        {
            InitializeComponent();
            this.vm = vm;
            srPicker1.ItemSelectionNotNull += srPicker1_ItemSelectionNotNull;
            srPicker1.ItemSelectionNull += srPicker1_ItemSelectionNull;
            srPicker1.DoubleClickOnRow += srPicker1_DoubleClickOnRow;
            srPicker1.SrHint.Visible = false;
            Host affinity = vm.Home();
            srPicker1.Usage = SrPicker.SRPickerType.MoveOrCopy;
            //this has to be set after ImportTemplate, otherwise the usage will be reset to VM
            var vdis = (from VBD vbd in vm.Connection.ResolveAll(vm.VBDs)
                                           where vbd.GetIsOwner()
                                           let vdi = vm.Connection.Resolve(vbd.VDI)
                                           where vdi != null
                                           select vdi).ToArray();
            srPicker1.SetExistingVDIs(vdis);
            srPicker1.Connection = vm.Connection;
            srPicker1.DiskSize = vm.TotalVMSize();
            srPicker1.SetAffinity(affinity);
            srPicker1.srListBox.Invalidate();
            srPicker1.selectDefaultSROrAny();

            EnableMoveButton();
        }

        private void srPicker1_DoubleClickOnRow(object sender, EventArgs e)
        {
            if (buttonMove.Enabled)
                buttonMove.PerformClick();
        }

        private void buttonMove_Click(object sender, EventArgs e)
        {
            var action = new VMMoveAction(vm, srPicker1.SR, vm.GetStorageHost(false), vm.Name());
            action.RunAsync();
            Close();
        }

        private void EnableMoveButton()
        {
            buttonMove.Enabled = srPicker1.SR != null;
        }

        private void srPicker1_ItemSelectionNull()
        {
            EnableMoveButton();
        }

        private void srPicker1_ItemSelectionNotNull()
        {
            EnableMoveButton();
        }

        private void buttonCancel_Click(object sender, EventArgs e)
        {
            Close();
        }
    }
}