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

using CMS.CMSHelper;
using CMS.ExtendedControls;
using CMS.GlobalHelper;
using CMS.OnlineMarketing;
using CMS.SettingsProvider;
using CMS.UIControls;

using ContactFilter = CMSModules_ContactManagement_Controls_UI_Contact_Filter;

public partial class CMSModules_ContactManagement_Controls_UI_Contact_List : CMSAdminListControl, ICallbackEventHandler
{
    #region "Variables"

    protected int mSiteId = -1;
    protected string mWhereCondition = null;
    private Hashtable mParameters;
    private bool modifyPermission = false;
    private bool modifyGlobal = false;
    private bool modifySite = false;
    private ContactFilter filter = null;

    /// <summary>
    /// Available actions in mass action selector.
    /// </summary>
    protected enum Action
    {
        SelectAction = 0,
        AddToGroup = 1,
        ChangeStatus = 2,
        Delete = 3,
        Merge = 4
    }

    /// <summary>
    /// Selected objects in mass action selector.
    /// </summary>
    protected enum What
    {
        Selected = 0,
        All = 1
    }


    /// <summary>
    /// URL of the page for contact deletion.
    /// </summary>
    protected const string DELETE_PAGE = "~/CMSModules/ContactManagement/Pages/Tools/Contact/Delete.aspx";


    /// <summary>
    /// URL of modal dialog for contact status selection.
    /// </summary>
    protected const string CONTACT_STATUS_DIALOG = "~/CMSModules/ContactManagement/FormControls/ContactStatusDialog.aspx";


    /// <summary>
    /// URL of modal dialog for contact group selection.
    /// </summary>
    protected const string CONTACT_GROUP_DIALOG = "~/CMSModules/ContactManagement/FormControls/ContactGroupDialog.aspx";


    /// <summary>
    /// URL of modal dialog for contact selection.
    /// </summary>
    protected const string CONTACT_SELECT_DIALOG = "~/CMSModules/ContactManagement/FormControls/ContactSelectorDialog.aspx";

    /// <summary>
    /// URL of collision dialog.
    /// </summary>
    private const string MERGE_DIALOG = "~/CMSModules/ContactManagement/Pages/Tools/Contact/CollisionDialog.aspx";

    /// <summary>
    /// Event argument parameters indicating that contacts were succesfuly merged.
    /// </summary>
    private const string CONTACTS_MERGED = "ContactsMerged";

    #endregion


    #region "Properties"

    /// <summary>
    /// Messages placeholder
    /// </summary>
    public override MessagesPlaceHolder MessagesPlaceHolder
    {
        get
        {
            return plcMess;
        }
    }


    /// <summary>
    /// Inner grid.
    /// </summary>
    public UniGrid Grid
    {
        get
        {
            return gridElem;
        }
    }


    /// <summary>
    /// Indicates if the control should perform the operations.
    /// </summary>
    public override bool StopProcessing
    {
        get
        {
            return base.StopProcessing;
        }
        set
        {
            base.StopProcessing = value;
            gridElem.StopProcessing = value;
        }
    }


    /// <summary>
    /// Indicates if the control is used on the live site.
    /// </summary>
    public override bool IsLiveSite
    {
        get
        {
            return base.IsLiveSite;
        }
        set
        {
            base.IsLiveSite = value;
            gridElem.IsLiveSite = value;
            plcMess.IsLiveSite = value;
        }
    }


    /// <summary>
    /// Gets or sets the site id.
    /// </summary>
    public int SiteID
    {
        get
        {
            return mSiteId;
        }
        set
        {
            mSiteId = value;
        }
    }


    /// <summary>
    /// Additional WHERE condition to filter data.
    /// </summary>
    public string WhereCondition
    {
        get
        {
            return mWhereCondition;
        }
        set
        {
            mWhereCondition = value;
        }
    }


    /// <summary>
    /// Dialog control identifier.
    /// </summary>
    private string Identifier
    {
        get
        {
            string identifier = hdnIdentifier.Value;
            if (string.IsNullOrEmpty(identifier))
            {
                identifier = Guid.NewGuid().ToString();
                hdnIdentifier.Value = identifier;
            }

            return identifier;
        }
    }


    /// <summary>
    /// Gets or sets the callback argument.
    /// </summary>
    private string CallbackArgument
    {
        get;
        set;
    }

    #endregion


    #region "Page events"

    protected override void OnInit(EventArgs e)
    {
        gridElem.OnFilterFieldCreated += new OnFilterFieldCreated(gridElem_OnFilterFieldCreated);
        gridElem.LoadGridDefinition();
        base.OnInit(e);
    }


    void gridElem_OnFilterFieldCreated(string columnName, UniGridFilterField filterDefinition)
    {
        filter = filterDefinition.ValueControl as ContactFilter;
        if (filter != null)
        {
            filter.NotMerged = true;
            filter.IsLiveSite = IsLiveSite;
            filter.ShowGlobalStatuses = ConfigurationHelper.AuthorizedReadConfiguration(UniSelector.US_GLOBAL_RECORD, false);
        }
    }

    protected void Page_Load(object sender, EventArgs e)
    {
        filter.SiteID = SiteID;
        filter.DisableGeneratingSiteClause = true;

        // Get modify permission of current user
        modifyPermission = ContactHelper.AuthorizedModifyContact(SiteID, false);
        if (SiteID == UniSelector.US_GLOBAL_OR_SITE_RECORD)
        {
            modifyGlobal = ContactHelper.AuthorizedModifyContact(UniSelector.US_GLOBAL_RECORD, false);
            modifySite = ContactHelper.AuthorizedModifyContact(CMSContext.CurrentSiteID, false);
        }

        filter.ShowGlobalStatuses = ConfigurationHelper.AuthorizedReadConfiguration(UniSelector.US_GLOBAL_RECORD, false);

        gridElem.OnExternalDataBound += new OnExternalDataBoundEventHandler(gridElem_OnExternalDataBound);
        gridElem.WhereCondition = SqlHelperClass.AddWhereCondition(gridElem.WhereCondition, WhereCondition);
        gridElem.EditActionUrl = "Frameset.aspx?contactId={0}&siteId=" + SiteID;
        gridElem.ZeroRowsText = GetString("om.contact.nocontacts");
        gridElem.OnBeforeDataReload += new OnBeforeDataReload(gridElem_OnBeforeDataReload);

        if (ContactHelper.IsSiteManager)
        {
            gridElem.EditActionUrl = URLHelper.AddParameterToUrl(gridElem.EditActionUrl, "issitemanager", "1");
        }

        if (Request.Params["__EVENTARGUMENT"] == CONTACTS_MERGED)
        {
            ShowConfirmation(GetString("om.contact.merginglist"));
        }

        if (QueryHelper.GetBoolean("deleteasync", false))
        {
            ShowConfirmation(GetString("om.contact.massdeletestarted"));
        }

        // Initialize dropdown lists
        if (!RequestHelper.IsPostBack())
        {
            drpAction.Items.Add(new ListItem(GetString("general." + Action.SelectAction), Convert.ToInt32(Action.SelectAction).ToString()));
            if ((modifyPermission || ContactGroupHelper.AuthorizedModifyContactGroup(SiteID, false)) && ContactGroupHelper.AuthorizedReadContactGroup(SiteID, false))
            {
                drpAction.Items.Add(new ListItem(GetString("om.account." + Action.AddToGroup), Convert.ToInt32(Action.AddToGroup).ToString()));
            }
            if (modifyPermission)
            {
                drpAction.Items.Add(new ListItem(GetString("general.delete"), Convert.ToInt32(Action.Delete).ToString()));
                drpAction.Items.Add(new ListItem(GetString("om.account." + Action.Merge), Convert.ToInt32(Action.Merge).ToString()));
                drpAction.Items.Add(new ListItem(GetString("om.account." + Action.ChangeStatus), Convert.ToInt32(Action.ChangeStatus).ToString()));
            }
            drpWhat.Items.Add(new ListItem(GetString("om.contact." + What.Selected), Convert.ToInt32(What.Selected).ToString()));
            drpWhat.Items.Add(new ListItem(GetString("om.contact." + What.All), Convert.ToInt32(What.All).ToString()));
        }
        else
        {
            if (RequestHelper.CausedPostback(btnOk))
            {
                // Set delayed reload for unigrid if mass action is performed
                gridElem.DelayedReload = true;
            }
        }

        // Register JS scripts
        RegisterScripts();
    }


    protected void Page_PreRender(object sender, EventArgs e)
    {
        pnlFooter.Visible = !gridElem.IsEmpty && (drpAction.Items.Count > 1);
    }

    #endregion


    #region "Events"

    private void gridElem_OnBeforeDataReload()
    {
        // Hide site column when displaying data for single site
        gridElem.NamedColumns["sitedisplayname"].Visible = ((SiteID < 0) && (SiteID != UniSelector.US_GLOBAL_RECORD));
        // Show column whed displaying merged and not merged contacts
        gridElem.NamedColumns["merged"].Visible = filter.DisplayingAll;
    }


    /// <summary>
    /// UniGrid databound.
    /// </summary>
    protected object gridElem_OnExternalDataBound(object sender, string sourceName, object parameter)
    {
        // Display full name for primary contact
        DataRowView drv = parameter as DataRowView;
        switch (sourceName.ToLowerCSafe())
        {
            // Display information that contact is merged
            case "contactmergedwithcontactid":
                int mergedIntoSite = ValidationHelper.GetInteger(drv["ContactMergedWithContactID"], 0);
                int mergedIntoGlobal = ValidationHelper.GetInteger(drv["ContactGlobalContactID"], 0);
                int siteID = ValidationHelper.GetInteger(drv["ContactSiteID"], 0);
                if (((siteID > 0) && (mergedIntoSite > 0)) || ((siteID == 0) && (mergedIntoGlobal > 0)))
                {
                    return GetString("general.yes");
                }
                break;

            // Display delete button
            case "delete":
                ImageButton btn = (ImageButton)sender;
                btn.OnClientClick = string.Format("dialogParams_{0} = '{1}';{2};return false;",
                                                  ClientID,
                                                  btn.CommandArgument,
                                                  Page.ClientScript.GetCallbackEventReference(this, "dialogParams_" + ClientID, "Delete", null));

                // Display delete button only for users with appropriate permission
                if (SiteID == UniSelector.US_GLOBAL_OR_SITE_RECORD)
                {
                    drv = (parameter as GridViewRow).DataItem as DataRowView;
                    if (ValidationHelper.GetInteger(drv["ContactSiteID"], 0) > 0)
                    {
                        btn.Enabled = modifySite;
                    }
                    else
                    {
                        btn.Enabled = modifyGlobal;
                    }
                }
                else
                {
                    btn.Enabled = modifyPermission;
                }
                if (!btn.Enabled)
                {
                    btn.Attributes.Add("src", GetImageUrl("Design/Controls/UniGrid/Actions/DeleteDisabled.png"));
                }
                break;
        }
        return null;
    }


    /// <summary>
    /// Mass operation button "OK" click.
    /// </summary>
    protected void btnOk_Click(object sender, EventArgs e)
    {
        // Get where condition depending on mass action selection
        string where = null;

        What what = (What)ValidationHelper.GetInteger(drpWhat.SelectedValue, 0);
        switch (what)
        {
            // All items
            case What.All:
                where = SqlHelperClass.AddWhereCondition(gridElem.WhereCondition, gridElem.WhereClause);
                break;
            // Selected items
            case What.Selected:
                where = SqlHelperClass.GetWhereCondition<int>("ContactID", gridElem.SelectedItems, false);
                break;
        }

        Action action = (Action)ValidationHelper.GetInteger(drpAction.SelectedItem.Value, 0);
        switch (action)
        {
            // Action 'Change status'
            case Action.ChangeStatus:
                // Get selected status ID from hidden field
                int statusId = ValidationHelper.GetInteger(hdnIdentifier.Value, -1);
                // If status ID is 0, the status will be removed
                if (statusId >= 0)
                {
                    ContactInfoProvider.UpdateContactStatus(statusId, where);
                    ShowConfirmation(GetString("om.contact.massaction.statuschanged"));
                }
                break;
            // Action 'Add to contact group'
            case Action.AddToGroup:
                // Get contact group ID from hidden field
                int groupId = ValidationHelper.GetInteger(hdnIdentifier.Value, 0);
                if (groupId > 0)
                {
                    List<string> contactIds = null;
                    switch (what)
                    {
                        // All items
                        case What.All:
                            // Get selected IDs based on where condition
                            DataSet contacts = ContactInfoProvider.GetContacts(where, null, 0, "ContactID");
                            if (!DataHelper.DataSourceIsEmpty(contacts))
                            {
                                // Get array list with IDs
                                contactIds = DataHelper.GetUniqueValues(contacts.Tables[0], "ContactID", true);
                            }
                            break;
                        // Selected items
                        case What.Selected:
                            // Get selected IDs from unigrid
                            contactIds = gridElem.SelectedItems;
                            break;
                    }

                    if (contactIds != null)
                    {
                        // Add each selected contact to the contact group, skip contacts that are already members of the group
                        foreach (string item in contactIds)
                        {
                            int contactId = ValidationHelper.GetInteger(item, 0);
                            if (contactId > 0)
                            {
                                ContactGroupMemberInfoProvider.SetContactGroupMemberInfo(groupId, contactId, ContactGroupMemberTypeEnum.Contact, MemberAddedHowEnum.Manual);
                            }
                        }
                        // Get contact group to show result message with its display name
                        ContactGroupInfo group = ContactGroupInfoProvider.GetContactGroupInfo(groupId);
                        if (group != null)
                        {
                            ShowConfirmation(String.Format(GetString("om.contact.massaction.addedtogroup"), ResHelper.LocalizeString(group.ContactGroupDisplayName)));
                        }
                    }
                }
                break;

            // Merge click
            case Action.Merge:
                DataSet selectedContacts = ContactHelper.GetContactListInfos(null, where, null, -1, null);
                if (!DataHelper.DataSourceIsEmpty(selectedContacts))
                {
                    // Get selected contact ID from hidden field
                    int contactID = ValidationHelper.GetInteger(hdnIdentifier.Value, -1);
                    // If contact ID is 0 then new contact must be created
                    if (contactID == 0)
                    {
                        int siteID;
                        if (filter.DisplaySiteSelector || filter.DisplayGlobalOrSiteSelector)
                        {
                            siteID = filter.SelectedSiteID;
                        }
                        else
                        {
                            siteID = SiteID;
                        }

                        SetDialogParameters(selectedContacts, ContactHelper.GetNewContact(ContactHelper.MERGED, true, siteID));
                    }
                    // Selected contact to be merged into
                    else if (contactID > 0)
                    {
                        SetDialogParameters(selectedContacts, ContactInfoProvider.GetContactInfo(contactID));
                    }
                    OpenWindow();
                }

                break;

            default:
                return;
        }

        // Reload unigrid
        gridElem.ClearSelectedItems();
        gridElem.ReloadData();
        pnlUpdate.Update();
    }

    #endregion


    #region "Methods"

    /// <summary>
    /// Sets the dialog parameters to the context.
    /// </summary>
    private void SetDialogParameters(DataSet mergedContacts, ContactInfo parentContact)
    {
        Hashtable parameters = new Hashtable();
        parameters["MergedContacts"] = mergedContacts;
        parameters["ParentContact"] = parentContact;
        parameters["issitemanager"] = ContactHelper.IsSiteManager;
        WindowHelper.Add(Identifier, parameters);
    }


    /// <summary>
    /// Registers JS for opening window.
    /// </summary>
    private void OpenWindow()
    {
        ScriptHelper.RegisterDialogScript(Page);

        string url = MERGE_DIALOG + "?params=" + Identifier;
        url += "&hash=" + QueryHelper.GetHash(url, false);

        StringBuilder script = new StringBuilder();
        script.Append(@"modalDialog('" + ResolveUrl(url) + @"', 'mergeDialog', 700, 700, null, null, true);");
        ScriptHelper.RegisterStartupScript(Page, typeof(string), "test", ScriptHelper.GetScript(script.ToString()));
    }


    /// <summary>
    /// Registers JS.
    /// </summary>
    private void RegisterScripts()
    {
        ScriptHelper.RegisterDialogScript(Page);
        StringBuilder script = new StringBuilder();

        // Register script to open dialogs
        script.Append(@"
function Delete(queryParameters)
{
    document.location.href = '" + ResolveUrl(DELETE_PAGE) + @"' + queryParameters;
}
function SelectStatus(queryParameters)
{
    modalDialog('" + ResolveUrl(CONTACT_STATUS_DIALOG) + @"' + queryParameters, 'selectStatus', '660px', '590px');
}
function SelectContactGroup(queryParameters)
{
    modalDialog('" + ResolveUrl(CONTACT_GROUP_DIALOG) + @"' + queryParameters, 'selectGroup', '500px', '435px');
}
function SelectContact(queryParameters)
{
    modalDialog('" + ResolveUrl(CONTACT_SELECT_DIALOG) + @"' + queryParameters, 'selectContact', '700px', '600px');
}
function Refresh()
{
    __doPostBack('" + pnlUpdate.ClientID + @"', '');
}
function RefreshPage()
{
    __doPostBack('" + pnlUpdate.ClientID + @"', '" + CONTACTS_MERGED + @"');
}");
        ScriptHelper.RegisterClientScriptBlock(this, typeof(string), "GridActions", ScriptHelper.GetScript(script.ToString()));
        ScriptHelper.RegisterClientScriptBlock(this, GetType(), "ContactStatus_" + ClientID, ScriptHelper.GetScript("var dialogParams_" + ClientID + " = '';"));

        // Register script for mass actions
        script = new StringBuilder();
        script.Append(@"
function PerformAction(selectionFunction, selectionField, actionId, actionLabel, whatId) {
    var confirmation = null;
    var label = document.getElementById(actionLabel);
    var action = document.getElementById(actionId).value;
    var whatDrp = document.getElementById(whatId);
    var selectionFieldElem = document.getElementById(selectionField);
    label.innerHTML = '';
    if (action == '", (int)Action.SelectAction, @"') {
        label.innerHTML = '", GetString("MassAction.SelectSomeAction"), @"'
    }
    else if (eval(selectionFunction) && (whatDrp.value == '", (int)What.Selected, @"')) {
        label.innerHTML = '", GetString("om.contact.massaction.select"), @"';
    }
    else {
        var param = 'massaction;' + whatDrp.value;
        if (whatDrp.value == '", (int)What.Selected, @"') {
            param = param + '#' + selectionFieldElem.value;
        }
        switch(action) {
            case '", (int)Action.Delete, @"':
                dialogParams_", ClientID, @" = param + ';", (int)Action.Delete, @"';", Page.ClientScript.GetCallbackEventReference(this, "dialogParams_" + ClientID, "Delete", null), @";
                break;
            case '", (int)Action.ChangeStatus, @"':
                dialogParams_", ClientID, @" = param + ';", (int)Action.ChangeStatus, @"';", Page.ClientScript.GetCallbackEventReference(this, "dialogParams_" + ClientID, "SelectStatus", null), @";
                break;
            case '", (int)Action.AddToGroup, @"':
                dialogParams_", ClientID, @" = param + ';", (int)Action.AddToGroup, @"';", Page.ClientScript.GetCallbackEventReference(this, "dialogParams_" + ClientID, "SelectContactGroup", null), @";
                break;
            case '", (int)Action.Merge, @"':
                dialogParams_", ClientID, @" = param + ';", (int)Action.Merge, @"';", Page.ClientScript.GetCallbackEventReference(this, "dialogParams_" + ClientID, "SelectContact", null), @";
                break;
            default:
                confirmation = null;
                break;
        }
        if (confirmation != null) {
            return confirm(confirmation)
        }
    }
    return false;
}
function SelectValue_" + ClientID + @"(valueID) {
    document.getElementById('" + hdnIdentifier.ClientID + @"').value = valueID;" + ControlsHelper.GetPostBackEventReference(btnOk, null) + @";
}");

        ScriptHelper.RegisterClientScriptBlock(this, typeof(string), "MassActions", ScriptHelper.GetScript(script.ToString()));

        // Add action to button
        btnOk.OnClientClick = "return PerformAction('" + gridElem.GetCheckSelectionScript() + "','" + gridElem.GetSelectionFieldClientID() + "','" + drpAction.ClientID + "','" + lblInfo.ClientID + "','" + drpWhat.ClientID + "');";
    }


    /// <summary>
    /// Returns where condition depending on mass action selection.
    /// </summary>
    /// <param name="whatValue">Value of What dd-list; if the value is 'selected' it also contains selected items</param>
    private string GetWhereCondition(string whatValue)
    {
        string where = string.Empty;

        if (!string.IsNullOrEmpty(whatValue))
        {
            string selectedItems = null;
            string whatAction = null;

            if (whatValue.Contains("#"))
            {
                // Char '#' devides what-value and selected items
                whatAction = whatValue.Substring(0, whatValue.IndexOfCSafe("#"));
                selectedItems = whatValue.Substring(whatValue.IndexOfCSafe("#") + 1);
            }
            else
            {
                whatAction = whatValue;
            }

            What what = (What)ValidationHelper.GetInteger(whatAction, 0);

            switch (what)
            {
                case What.All:
                    // For all items get where condition from grid setting
                    where = SqlHelperClass.AddWhereCondition(gridElem.WhereCondition, gridElem.WhereClause);
                    break;
                case What.Selected:
                    // Convert array to integer values to make sure no sql injection is possible (via string values)
                    string[] items = selectedItems.Split(new string[] { "|" }, StringSplitOptions.RemoveEmptyEntries);
                    items = ContactHelper.GetSafeArray(items);
                    where = SqlHelperClass.GetWhereCondition<int>("ContactID", items, false);
                    break;
            }
        }

        return where;
    }

    #endregion


    #region "ICallbackEventHandler Members"

    /// <summary>
    /// Gets callback result.
    /// </summary>
    public string GetCallbackResult()
    {
        string queryString = string.Empty;

        if (!string.IsNullOrEmpty(CallbackArgument))
        {
            // Prepare parameters...
            mParameters = new Hashtable();
            mParameters["issitemanager"] = ContactHelper.IsSiteManager;

            // ...for mass action
            if (CallbackArgument.StartsWithCSafe("massaction;", true))
            {
                // Get values of callback argument
                string[] selection = CallbackArgument.Split(new string[] { ";" }, StringSplitOptions.RemoveEmptyEntries);
                if (selection.Length != 3)
                {
                    return null;
                }

                // Get selected actions from DD-list
                Action action = (Action)ValidationHelper.GetInteger(selection[2], 0);
                switch (action)
                {
                    case Action.Delete:
                        mParameters["where"] = GetWhereCondition(selection[1]);
                        break;
                    case Action.ChangeStatus:
                        mParameters["allownone"] = true;
                        mParameters["clientid"] = ClientID;
                        break;
                    case Action.AddToGroup:
                        mParameters["clientid"] = ClientID;
                        break;
                    case Action.Merge:
                        mParameters["where"] = GetWhereCondition(selection[1]);
                        mParameters["clientid"] = ClientID;
                        break;
                    default:
                        return null;
                }
            }
            // ...for unigrid action
            else
            {
                mParameters["where"] = SqlHelperClass.GetWhereCondition<int>("ContactID", new string[] { CallbackArgument }, false);
            }
            if (filter.DisplayGlobalOrSiteSelector || filter.DisplaySiteSelector)
            {
                mParameters["siteid"] = filter.SelectedSiteID;
            }
            else
            {
                mParameters["siteid"] = SiteID;
            }
            WindowHelper.Add(Identifier, mParameters);

            queryString = "?params=" + Identifier;
            queryString = URLHelper.AddParameterToUrl(queryString, "hash", QueryHelper.GetHash(queryString));
        }

        return queryString;
    }


    /// <summary>
    /// Raise callback method.
    /// </summary>
    public void RaiseCallbackEvent(string eventArgument)
    {
        CallbackArgument = eventArgument;
    }

    #endregion
}