// Copyright (c) 2012, Outercurve Foundation.
// 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.
//
// - Neither  the  name  of  the  Outercurve Foundation  nor   the   names  of  its
//   contributors may be used to endorse or  promote  products  derived  from  this
//   software without specific prior written permission.
//
// 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,  SPECIAL,  EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO,  PROCUREMENT  OF  SUBSTITUTE  GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)  HOWEVER  CAUSED AND ON
// ANY  THEORY  OF  LIABILITY,  WHETHER  IN  CONTRACT,  STRICT  LIABILITY,  OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE)  ARISING  IN  ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

using WebsitePanel.EnterpriseServer;

namespace WebsitePanel.Portal
{
    public partial class ServersEditService : WebsitePanelModuleBase
    {

        ServiceInfo service = null;
        ProviderInfo provider = null;
        ResourceGroupInfo resourceGroup = null;

        protected void Page_Load(object sender, EventArgs e)
        {
            try
            {
                // load service settings control
                LoadService();
                LoadSettingsControl();

                rowInstallResults.Visible = false;

                if (!IsPostBack)
                {
                    BindClusters();
                    BindService();
                    BindServiceProperties();
                    BindServiceQuota();
                }
            }
            catch (Exception ex)
            {
                ShowErrorMessage("SERVER_GET_SERVICE", ex);
                return;
            }
        }

        private void LoadService()
        {
            service = ES.Services.Servers.GetServiceInfo(PanelRequest.ServiceId);

            if (service == null)
                // return
                RedirectBack();

            // load provider details
            provider = ES.Services.Servers.GetProvider(service.ProviderId);

            // load resource group details
            resourceGroup = ES.Services.Servers.GetResourceGroup(provider.GroupId);
        }

        private void BindService()
        {
			litGroup.Text = PanelFormatter.GetLocalizedResourceGroupName(resourceGroup.GroupName);
            litProvider.Text = provider.DisplayName;

            txtServiceName.Text = service.ServiceName;
            txtQuotaValue.Text = service.ServiceQuotaValue.ToString();
            Utils.SelectListItem(ddlClusters, service.ClusterId);
            txtComments.Text = service.Comments;
        }

        private void BindServiceQuota()
        {
            QuotaInfo quota = ES.Services.Servers.GetProviderServiceQuota(provider.ProviderId);
            if (quota != null)
            {
				lblQuotaName.Text = GetSharedLocalizedString(Utils.ModuleName, "Quota." + quota.QuotaName);
            }
            else
            {
                pnlQuota.Visible = false;
            }
        }

        private void LoadSettingsControl()
        {
            try
            {
                // try to locate suitable control
                string currPath = this.AppRelativeVirtualPath;
                currPath = currPath.Substring(0, currPath.LastIndexOf("/"));

                string ctrlPath = currPath + "/ProviderControls/" + provider.EditorControl + "_Settings.ascx";

                IHostingServiceProviderSettings ctrl =
                    (IHostingServiceProviderSettings)Page.LoadControl(ctrlPath);

                // add control to the placeholder
                serviceProps.Controls.Add((Control)ctrl);
            }
            catch (Exception ex)
            {
                ShowErrorMessage("SERVER_LOAD_SERVICE_CONTROL", ex);
                return;
            }
        }

        private void BindServiceProperties()
        {
            // find control
            IHostingServiceProviderSettings ctrl = serviceProps.Controls[0] as IHostingServiceProviderSettings;
            if (ctrl == null)
                return;

            // load service properties and bind them
            string[] settings = ES.Services.Servers.GetServiceSettings(PanelRequest.ServiceId);

            // bind
            ctrl.BindSettings(ConvertArrayToDictionary(settings));
        }

        private void SaveServiceProperties()
        {
            // find control
            try
            {
                IHostingServiceProviderSettings ctrl = serviceProps.Controls[0] as IHostingServiceProviderSettings;
                if (ctrl == null)
                    return;

                // grab settings
                StringDictionary settings = new StringDictionary();
                ctrl.SaveSettings(settings);

                // save settings
                int result = ES.Services.Servers.UpdateServiceSettings(PanelRequest.ServiceId,
                    ConvertDictionaryToArray(settings));

                if (result < 0)
                {
                    ShowResultMessage(result);
                    return;
                }
            }
            catch (Exception ex)
            {
                ShowErrorMessage("SERVER_UPDATE_SERVICE_PROPS", ex);
                return;
            }
        }

        protected void btnUpdate_Click(object sender, EventArgs e)
        {
            // validate input
            if (!Page.IsValid)
                return;

            service = new ServiceInfo();
            service.ServiceId = PanelRequest.ServiceId;
            service.ServiceName = txtServiceName.Text.Trim();
            service.ServiceQuotaValue = Utils.ParseInt(txtQuotaValue.Text, 0);
            service.ClusterId = Utils.ParseInt(ddlClusters.SelectedValue, 0);
            service.Comments = txtComments.Text;

            // update service
            try
            {
                int result = ES.Services.Servers.UpdateService(service);
                if (result < 0)
                {
                    ShowResultMessage(result);
                    return;
                }
            }
            catch (Exception ex)
            {
                ShowErrorMessage("SERVER_UPDATE_SERVICE", ex);
                return;
            }

            // save properties
            SaveServiceProperties();

            // install service
            string[] installResults = null;
            try
            {
                installResults = ES.Services.Servers.InstallService(PanelRequest.ServiceId);
            }
            catch (Exception ex)
            {
                ShowErrorMessage("SERVER_INSTALL_SERVICE", ex);
                return;
            }

            // check results
            if (installResults != null && installResults.Length > 0)
            {
                rowInstallResults.Visible = true;
                blInstallResults.Items.Clear();
                foreach (string installResult in installResults)
                    blInstallResults.Items.Add(installResult);

                return;
            }
            // save quotas
            //SaveServiceQuotas();

            // return
            RedirectBack();
        }
        protected void btnCancel_Click(object sender, EventArgs e)
        {
            // return
            RedirectBack();
        }
        protected void btnDelete_Click(object sender, EventArgs e)
        {
            if (PanelRequest.ServiceId != 0)
            {
                // delete service
                try
                {
                    int result = ES.Services.Servers.DeleteService(PanelRequest.ServiceId);
                    if (result < 0)
                    {
                        ShowResultMessage(result);
                        return;
                    }
                }
                catch (Exception ex)
                {
                    ShowErrorMessage("SERVER_DELETE_SERVICE", ex);
                    return;
                }
            }

            // return
            RedirectBack();
        }

        private void RedirectBack()
        {
            // redirect to the previous page
            Response.Redirect(EditUrl("ServerID", PanelRequest.ServerId.ToString(), "edit_server"));
        }

        #region Cluster methods
        private void BindClusters()
        {
            try
            {
                ddlClusters.DataSource = ES.Services.Servers.GetClusters();
                ddlClusters.DataBind();

                ddlClusters.Items.Insert(0, new ListItem("<Not Included>", ""));
            }
            catch (Exception ex)
            {
                ShowErrorMessage("SERVER_GET_CLUSTER", ex);
                return;
            }
        }
        protected void cmdAddCluster_Click(object sender, EventArgs e)
        {
            ClusterInfo cluster = new ClusterInfo();
            cluster.ClusterName = txtClusterName.Text.Trim();

            try
            {
                int result = ES.Services.Servers.AddCluster(cluster);
                if (result < 0)
                {
                    ShowResultMessage(result);
                    return;
                }
            }
            catch (Exception ex)
            {
                ShowErrorMessage("SERVER_ADD_CLUSTER", ex);
                return;
            }

            // rebind
            BindClusters();
            txtClusterName.Text = "";
        }
        protected void cmdDeleteCluster_Click(object sender, EventArgs e)
        {
            try
            {
                int result = ES.Services.Servers.DeleteCluster(Utils.ParseInt(ddlClusters.SelectedValue, 0));
                if (result < 0)
                {
                    ShowResultMessage(result);
                    return;
                }
            }
            catch (Exception ex)
            {
                ShowErrorMessage("SERVER_DELETE_CLUSTER", ex);
                return;
            }

            // rebind
            BindClusters();
        }
        #endregion

        #region Helper methods
        private string[] ConvertDictionaryToArray(StringDictionary settings)
        {
            List<string> r = new List<string>();
            foreach (string key in settings.Keys)
                r.Add(key + "=" + settings[key]);
            return r.ToArray();
        }

        private StringDictionary ConvertArrayToDictionary(string[] settings)
        {
            StringDictionary r = new StringDictionary();
            foreach (string setting in settings)
            {
                int idx = setting.IndexOf('=');
                r.Add(setting.Substring(0, idx), setting.Substring(idx + 1));
            }
            return r;
        }
        #endregion
    }
}