using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

using CMS.ExtendedControls;
using CMS.SettingsProvider;
using CMS.UIControls;

public partial class CMSModules_ContactManagement_Controls_UI_Contact_ContactGroups : CMSAdminListControl
{
    #region "Variables"

    private List<int> mFilterByContacts = new List<int>();
    private List<int?> mFilterBySites = new List<int?>();

    #endregion


    #region "Events"

    /// <summary>
    /// Remove button on group is clicked.
    /// </summary>
    public event EventHandler OnRemoveGroup;


    /// <summary>
    /// Remove button on group is drawed. 
    /// Control by default disables delete button, for enabling the button
    /// you should set ButtonEnabled to true in sent DrawButtonEventArgs.
    /// </summary>
    public event OnDrawButtonEventHandler OnDrawRemoveButton;


    /// <summary>
    /// Delegate for OnDrawRemoveButton.
    /// </summary>
    public delegate void OnDrawButtonEventHandler(object sender, DrawButtonEventArgs args);


    /// <summary>
    /// Event arguments for OnDrawRemoveButton.
    /// </summary>
    public class DrawButtonEventArgs : CMSEventArgs
    {
        public object EditedObject;
        public bool ButtonEnabled = false;
    }

    #endregion


    #region "Properties"

    /// <summary>
    /// Sets or gets contact ID to filter unigrid. 
    /// Leave empty for displaying groups from all contacts.
    /// </summary>
    public List<int> FilterByContacts
    {
        get
        {
            return mFilterByContacts;
        }
        set
        {
            mFilterByContacts = value;
        }
    }


    /// <summary>
    /// Gets or Sets site list to display contact group from. 
    /// Leave empty for displaying groups from all sites. 
    /// Add null for 'global' items.
    /// </summary>
    public List<int?> FilterBySites
    {
        get
        {
            return mFilterBySites;
        }
        set
        {
            mFilterBySites = value;
        }
    }


    /// <summary>
    /// Returns inner unigrid.
    /// </summary>
    public UniGrid UniGrid
    {
        get
        {
            return gridElem;
        }
    }

    #endregion


    #region "Methods"

    protected void Page_Load(object sender, EventArgs e)
    {
        SetUniGridQuery();
        gridElem.OnAction += new OnActionEventHandler(gridElem_OnAction);
        gridElem.OnExternalDataBound += new OnExternalDataBoundEventHandler(gridElem_OnExternalDataBound);
    }


    /// <summary>
    /// Sets unigrid query.
    /// </summary>
    private void SetUniGridQuery()
    {
        // Filter by contacts
        if ((mFilterByContacts != null) && (mFilterByContacts.Count > 0))
        {
            // Get joined contacts in format "string1, string2, string3", 
            // create SQL WHERE condition from that and set it to grid element.
            String joinedContacts = string.Join(",", mFilterByContacts.ToArray().Select(x => x.ToString()).ToArray());
            String contactFilterCondition = "ContactID IN (" + joinedContacts + ")";
            gridElem.WhereCondition = SqlHelperClass.AddWhereCondition(gridElem.WhereCondition, contactFilterCondition);
        }
        // And sites
        if ((mFilterBySites != null) && (mFilterBySites.Count > 0))
        {
            // Get joined contacts in format "string1, string2, string3", 
            // create SQL WHERE condition from that and set it to grid element.
            String joinedSites = string.Join("','", mFilterBySites.ToArray().Select(x => x.ToString()).ToArray());
            String siteFilterCondition = "ContactGroupSiteID IN ('" + joinedSites + "')";
            if (mFilterBySites.Contains(null))
            {
                siteFilterCondition += " OR ContactGroupSiteID IS NULL";
            }
            gridElem.WhereCondition = SqlHelperClass.AddWhereCondition(gridElem.WhereCondition, siteFilterCondition);
        }
    }


    private object gridElem_OnExternalDataBound(object sender, string sourceName, object parameter)
    {
        switch (sourceName)
        {
            case "remove":
                // Set the OnDrawRemoveButton event arguments, fire it 
                // and set delete button's properties appropriately afterwards. 
                DataRowView drv = (parameter as GridViewRow).DataItem as DataRowView;
                DrawButtonEventArgs drawButtonArgs = new DrawButtonEventArgs();
                drawButtonArgs.EditedObject = drv["ContactGroupID"];
                OnDrawRemoveButton(sender, drawButtonArgs);

                if (drawButtonArgs.ButtonEnabled)
                {
                    ((CMSImageButton)sender).ImageUrl = GetImageUrl("Design/Controls/UniGrid/Actions/Delete.png");
                    ((CMSImageButton)sender).Enabled = true;
                }
                else
                {
                    ((CMSImageButton)sender).ImageUrl = GetImageUrl("Design/Controls/UniGrid/Actions/DeleteDisabled.png");
                    ((CMSImageButton)sender).Enabled = false;
                }

                break;
        }
        return null;
    }


    private void gridElem_OnAction(string actionName, object actionArgument)
    {
        switch (actionName)
        {
            case "remove":
                OnRemoveGroup(actionArgument, EventArgs.Empty);
                break;
        }
    }


    /// <summary>
    /// Reloads unigrid.
    /// </summary>
    public override void ReloadData()
    {
        SetUniGridQuery();
        gridElem.ReloadData();
    }

    #endregion
}