/* Copyright (c) Citrix Systems Inc. 
 * All rights reserved. 
 * 
 * Redistribution and use in source and binary forms, 
 * with or without modification, are permitted provided 
 * that the following conditions are met: 
 * 
 * *   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 
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
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 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
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 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 
 * SUCH DAMAGE.
 */

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Text;
using System.Windows.Forms;

using XenAdmin.Actions;
using XenAdmin.Core;
using XenAdmin.Wlb;
using XenAPI;


namespace XenAdmin.SettingsPanels
{
    public partial class WlbAdvancedSettingsPage : UserControl, IEditPage
    {
        private const double DAYS_IN_WEEK = 7; //seven days per week
        private const String SMTP_MAILHUB_KEY_NAME = "ssmtp-mailhub";

        private bool _loading = false;
        private bool _hasChanged = false;
        private Pool _pool;
        private WlbPoolConfiguration _poolConfiguration;
        
        private readonly ToolTip InvalidParamToolTip;

        public WlbAdvancedSettingsPage()
        {
            InitializeComponent();
            Text = Messages.WLB_ADVANCED_CONFIGURATION;

            InvalidParamToolTip = new ToolTip();
            InvalidParamToolTip.IsBalloon = true;
            InvalidParamToolTip.ToolTipIcon = ToolTipIcon.Warning;
            InvalidParamToolTip.ToolTipTitle = Messages.INVALID_PARAMETER;
        }

        public Pool Pool
        {
            set
            {
                if (null != value)
                {
                    _pool = value;
                    if (null != _poolConfiguration)
                    {
                        InitializeControls();
                    }
                }
            }
        }

        public WlbPoolConfiguration PoolConfiguration
        {
            set
            {
                if (null != value)
                {
                    _poolConfiguration = value;
                    if (null != _pool)
                    {
                        InitializeControls();
                    }
                }
            }
        }


        private void InitializeControls()
        {
            _loading = true;
            
            // Set up the Grooming numeric up/down
            if (!_poolConfiguration.IsTampaOrLater)
            {
                if (_poolConfiguration.MetricGroomingPeriod > 0)
                {
                    //convert from days to weeks
                    int periodWeeks = (int)(_poolConfiguration.MetricGroomingPeriod / DAYS_IN_WEEK);
                    numericUpDownGroomingPeriod.Enabled = true;
                    numericUpDownGroomingPeriod.Value = (decimal)periodWeeks;
                }
                else
                {
                    labelGroomingDefault.Hide();
                    labelGroomingUnits.Hide();
                    numericUpDownGroomingPeriod.Hide();
                    labelHistData.Text = Messages.WLB_SQLEXPRESS_GROOMING_BLURB;
                }
            }

            if (_poolConfiguration.IsMROrLater)
            {
                // Set up the Relocation Interval numeric up/down
                numericUpDownRelocationInterval.Value = (decimal)_poolConfiguration.RecentMoveMinutes;

                // Disable it for alpha 3
                // Set up the Use Reporting Services checkbox and SMTP Server textbox
                // checkBoxUseReportingServices.Checked = _poolConfiguration.ReportingUseRSServer;

                if (!_poolConfiguration.IsTampaOrLater)
                {
                    string smtpServer = _poolConfiguration.ReportingSMTPServer;
                    // Disable it for now, will enable after adding the port to WLB DB
                    // string smtpServerPort = String.Empty;
                    if (string.IsNullOrEmpty(smtpServer))
                    {
                        //We don't have an smtp server defined, so try to get the XS Alerts smtp server
                        Dictionary<String, String> other_config = null;
                        try
                        {
                            other_config = Helpers.GetOtherConfig(_pool);
                        }
                        catch { }
                        if (null == other_config
                            || !other_config.TryGetValue(SMTP_MAILHUB_KEY_NAME, out smtpServer)
                            || string.IsNullOrEmpty(smtpServer))
                        {
                            //okay, that didnt work, so let's use the wlb server name (without the port)
                            smtpServer = _pool.wlb_url.Split(':')[0];
                            //BL: Disable it for now, will enable it after adding the port to WLB side
                            //smtpServerPort = _pool.wlb_url.Split(':')[1];
                        }
                    }
                    textBoxSMTPServer.Text = smtpServer;
                    //BL: Disable it for now, will enable it after adding the port to WLB side
                    //TextBoxSMTPServerPort.Text = smtpServerPort;
                }
                //Set up the Optimization Severity combobox
                comboBoxOptimizationSeverity.DataSource = new BindingSource(BuildSeverity(), null);
                comboBoxOptimizationSeverity.ValueMember = "key";
                comboBoxOptimizationSeverity.DisplayMember = "value";
                comboBoxOptimizationSeverity.SelectedValue = _poolConfiguration.AutoBalanceSeverity;

                //Set up the Autobalance Aggressiveness combobox
                comboBoxAutoBalanceAggressiveness.DataSource = new BindingSource(BuildAggressiveness(), null);
                comboBoxAutoBalanceAggressiveness.ValueMember = "key";
                comboBoxAutoBalanceAggressiveness.DisplayMember = "value";
                comboBoxAutoBalanceAggressiveness.SelectedValue = _poolConfiguration.AutoBalanceAggressiveness;

                //Set up the Pool Audit Trail Granularity
                //This only works from Creedence
                if(_poolConfiguration.IsCreedenceOrLater)
                {
                    comboBoxPoolAuditTrailLevel.DataSource = new BindingSource(PoolAuditGranularity(), null);
                    comboBoxPoolAuditTrailLevel.ValueMember = "key";
                    comboBoxPoolAuditTrailLevel.DisplayMember = "value";
                    comboBoxPoolAuditTrailLevel.SelectedValue = _poolConfiguration.PoolAuditGranularity;
                }
                else
                {
                    HidePoolAuditTrailGranularitySection();
                }

                numericUpDownPollInterval.Value = (decimal)_poolConfiguration.AutoBalancePollIntervals;

                numericUpDownRelocationInterval.Value = (decimal)_poolConfiguration.RecentMoveMinutes;
            }
            else
            {
                // For versions before MNR, there are no report subscriptions and 
                HideMigrationIntervalSection();
                HideReportSubscriptionSection();
            }

            // For Boston, we do not expose grooming, and no longer support report subscriptions
            if (_poolConfiguration.IsBostonOrLater)
            {
                HideHistoricalDataSection();
                HideReportSubscriptionSection();
            }

            _loading = false;
        }

        private Dictionary<WlbPoolAutoBalanceSeverity, string> BuildSeverity()
        {
            Dictionary<WlbPoolAutoBalanceSeverity, string> severities = new Dictionary<WlbPoolAutoBalanceSeverity, string>();

            severities.Add(WlbPoolAutoBalanceSeverity.Critical, Messages.WLB_SEVERITY_CRITICAL);
            severities.Add(WlbPoolAutoBalanceSeverity.High, Messages.WLB_SEVERITY_HIGH);
            severities.Add(WlbPoolAutoBalanceSeverity.Medium, Messages.WLB_SEVERITY_MEDIUM);
            severities.Add(WlbPoolAutoBalanceSeverity.Low, Messages.WLB_SEVERITY_LOW);

            return severities;
        }

        private Dictionary<WlbPoolAutoBalanceAggressiveness, string> BuildAggressiveness()
        {
            Dictionary<WlbPoolAutoBalanceAggressiveness, string> aggressiveness = new Dictionary<WlbPoolAutoBalanceAggressiveness, string>();

            aggressiveness.Add(WlbPoolAutoBalanceAggressiveness.High, Messages.WLB_SEVERITY_HIGH);
            aggressiveness.Add(WlbPoolAutoBalanceAggressiveness.Medium, Messages.WLB_SEVERITY_MEDIUM);
            aggressiveness.Add(WlbPoolAutoBalanceAggressiveness.Low, Messages.WLB_SEVERITY_LOW);

            return aggressiveness;
        }

        private Dictionary<WlbAuditTrailLogGranularity, string> PoolAuditGranularity()
        {
            Dictionary<WlbAuditTrailLogGranularity, string> auditLogGranularity = new Dictionary<WlbAuditTrailLogGranularity, string>();

            auditLogGranularity.Add(WlbAuditTrailLogGranularity.Minimum, Messages.WLB_AUDIT_LOG_MINIMUM);
            auditLogGranularity.Add(WlbAuditTrailLogGranularity.Medium, Messages.WLB_AUDIT_LOG_MEDIUM);
            auditLogGranularity.Add(WlbAuditTrailLogGranularity.Maximum, Messages.WLB_AUDIT_LOG_MAXIMUM);

            return auditLogGranularity;
        }

        private bool IsValidSmtpAddress()
        {
            return this.textBoxSMTPServer.Text.Trim().Length > 0;
        }

        private void HideMigrationIntervalSection()
        {
            sectionHeaderLabelVmMigInt.Visible = false;
            labelVmMigInt.Visible = false;
            panelVmMigInt.Visible = false;
        }

        private void HideReportSubscriptionSection()
        {
            sectionHeaderLabelRepSub.Visible = false;
            labelRepSub.Visible = false;
            panelRepSub.Visible = false;
        }

        private void HideHistoricalDataSection()
        {
            sectionHeaderLabelHistData.Visible = false;
            labelHistData.Visible = false;
            panelHistData.Visible = false;
        }

        private void HidePoolAuditTrailGranularitySection()
        {
            label2.Visible = false;
            label3.Visible = false;
            sectionHeaderLabelAuditTrail.Visible = false;
            labelAuditTrail.Visible = false;
            auditTrailPanel.Visible = false;
        }

        private void ToggleShowAggressiveness()
        {
            sectionHeaderLabelOptAgr.Visible = !sectionHeaderLabelOptAgr.Visible;
            labelOptAgr.Visible = !labelOptAgr.Visible;
            panelOptAgr.Visible = !panelOptAgr.Visible;
        }

        #region Control Event Handlers

        private void numericUpDown_ValueChanged(object sender, EventArgs e)
        {
            if (!_loading)
            {
                _hasChanged = true;
            }
        }
        
        private void checkBoxUseReportingServices_CheckedChanged(object sender, EventArgs e)
        {
            if (!_loading)
            {
                _hasChanged = true;
            }
        }

        private void textBoxSMTPServer_TextChanged(object sender, EventArgs e)
        {
            if (!_loading)
            {
                _hasChanged = true;
            }
        }

        private void numericUpDownPollInterval_ValueChanged(object sender, EventArgs e)
        {
            if (!_loading)
            {
                _hasChanged = true;
            }
        }

        private void comboBoxOptimizationSeverity_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (!_loading)
            {
                _hasChanged = true;
            }
        }

        private void comboBoxAutoBalanceAggressiveness_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (!_loading)
            {
                _hasChanged = true;
            }
        }
        private void comboBoxPoolAuditTrailLevel_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (!_loading)
            {
                _hasChanged = true;
            }
        }


        private void numericUpDownRelocationInterval_KeyUp(object sender, KeyEventArgs e)
        {
            if (e.Alt && e.Control && e.KeyCode == Keys.A)
            {
                ToggleShowAggressiveness();
            }
        }

        #endregion

        #region IEditPage Members

        public AsyncAction SaveSettings()
        {

            if (_poolConfiguration.IsMROrLater)
            {
                _poolConfiguration.AutoBalanceSeverity = (WlbPoolAutoBalanceSeverity)comboBoxOptimizationSeverity.SelectedValue;
                _poolConfiguration.AutoBalanceAggressiveness = (WlbPoolAutoBalanceAggressiveness)comboBoxAutoBalanceAggressiveness.SelectedValue;
                _poolConfiguration.AutoBalancePollIntervals = (double)numericUpDownPollInterval.Value;
                if(_poolConfiguration.IsCreedenceOrLater)
                {
                    _poolConfiguration.PoolAuditGranularity = (WlbAuditTrailLogGranularity)comboBoxPoolAuditTrailLevel.SelectedValue;
                }
                
                if (!_poolConfiguration.IsTampaOrLater)
                {
                    _poolConfiguration.ReportingSMTPServer = textBoxSMTPServer.Text;
                }
                _poolConfiguration.RecentMoveMinutes = (double)numericUpDownRelocationInterval.Value;
            }

            if (!_poolConfiguration.IsTampaOrLater)
            {
                _poolConfiguration.MetricGroomingPeriod = (double)numericUpDownGroomingPeriod.Value * DAYS_IN_WEEK;
            }
            // Disable it for alpha 3
            //_poolConfiguration.ReportingUseRSServer = checkBoxUseReportingServices.Checked;
            
            return null;
        }

        public void SetXenObjects(IXenObject orig, IXenObject clone)
        {
            throw new Exception("The method or operation is not implemented.");
        }

        public bool ValidToSave
        {
            get
            {
                return (_poolConfiguration.IsBostonOrLater || IsValidSmtpAddress());
                //BL: Disable it for now, will enable it after adding the port to WLB side
                //return IsValidSmtpAddress() && PerfmonAlertOptionsPage.IsValidPort(TextBoxSMTPServerPort.Text);
            }
        }

        public void ShowLocalValidationMessages()
        {
            if (!this.ValidToSave)
            {
                HelpersGUI.ShowBalloonMessage(textBoxSMTPServer, Messages.INVALID_PARAMETER, InvalidParamToolTip);
            }
            //BL: Disable it for now, will enable it after adding the port to WLB side
            /*
            else if (!PerfmonAlertOptionsPage.IsValidPort(TextBoxSMTPServerPort.Text))
            {
                Dialogs.EditVIFDialog.ShowBalloonMessage(TextBoxSMTPServerPort, Messages.INVALID_PARAMETER, InvalidParamToolTip);
            }
            */
        }

        public void Cleanup()
        {
            throw new Exception("The method or operation is not implemented.");
        }

        public bool HasChanged
        {
            get { return _hasChanged; }
        }

        #endregion

        #region VerticalTab Members


        public string SubText
        {
            get { return Messages.WLB_ADVANCED_CONFIGURATION_SUBTEXT; }
        }

        public Image Image
        {
            get { return Properties.Resources._002_Configure_h32bit_16; }
        }

        #endregion



    }
}