using System;

using System.Collections.Generic;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Media.Imaging;

using Microsoft.Phone.Tasks;



namespace DIS.WindowsPhone.Toolkit.Controls

{

    /// <summary>

    /// Represents an Ad that displays the Microsoft Ad Control and falls back to a user specified banner if no ads to display

    /// </summary>

    public class AdControl : Control

    {

        Microsoft.Advertising.Mobile.UI.AdControl adControl1;

        Image image1;

        string deferredApplicationID = null;

        string deferredAdUnitID = null;

        public AdControl()

        {

            DefaultStyleKey = typeof(AdControl);

        }



        void msftAdControl_ErrorOccurred(object sender, Microsoft.Advertising.AdErrorEventArgs e)

        {

            if (e.Error != null)

            {

                adControl1.Visibility = System.Windows.Visibility.Collapsed;

                image1.Visibility = System.Windows.Visibility.Visible;

                ChooseRandomApplicationBanner();

            }

        }



        void Image_Tap(object sender, System.Windows.Input.GestureEventArgs e)

        {

            MarketplaceDetailTask task = new MarketplaceDetailTask();

            task.ContentIdentifier = image1.Tag.ToString();

            task.Show();

        }



        void ChooseRandomApplicationBanner()

        {

            if (ApplicationBanners == null || ApplicationBanners.Count == 0)

            {

                this.Visibility = System.Windows.Visibility.Collapsed;

                return;

            }



            Random random = new Random((int)DateTime.Now.Ticks);

            int index = random.Next(0, ApplicationBanners.Count);

            image1.Source = new BitmapImage(ApplicationBanners[index].AppBannerUri);

            image1.Tag = ApplicationBanners[index].ApplicationID;

        }



        public override void OnApplyTemplate()

        {

            base.OnApplyTemplate();

            adControl1 = GetTemplateChild("msftAdControl") as Microsoft.Advertising.Mobile.UI.AdControl;

            image1 = GetTemplateChild("image1") as Image;



            adControl1.ErrorOccurred += msftAdControl_ErrorOccurred;

            image1.Tap += Image_Tap;



            if (!String.IsNullOrWhiteSpace(deferredAdUnitID))

            {

                adControl1.AdUnitId = deferredAdUnitID;

                deferredAdUnitID = null;

            }

            if (!String.IsNullOrWhiteSpace(deferredApplicationID))

            {

                adControl1.ApplicationId = deferredApplicationID;

                deferredApplicationID = null;

            }

        }



        #region AdUnitID

        public static readonly DependencyProperty AdUnitProperty =

            DependencyProperty.Register("AdUnitID", typeof(string), typeof(AdControl), new PropertyMetadata(null, AdUnit_PropertyChangedCallback));



        private static void AdUnit_PropertyChangedCallback(DependencyObject d, DependencyPropertyChangedEventArgs e)

        {

            AdControl control = ((AdControl)d);

            if (control.adControl1 != null)

                control.adControl1.AdUnitId = e.NewValue.ToString();

            else

                control.deferredAdUnitID = e.NewValue.ToString();

        }



        /// <summary>

        /// <para>Gets or sets the ad unit identifier for the Microsoft <c>AdControl</c> instance.</para>

        /// <para>This value is provided to the publisher when the publisher creates an <c>AdUnit</c> in pubCenter. See the Publisher Onboarding Guide for more information</para>

        /// </summary>

        /// <remarks>

        /// <para>This property can only be set when the <c>AdControl</c> is instantiated by using the default constructor</para>

        /// <para>Once set, this property cannot be modified</para>

        /// </remarks>

        public string AdUnitID

        {

            get

            {

                return (string)GetValue(AdUnitProperty);

            }

            set

            {

                SetValue(AdUnitProperty, value);

            }

        }

        #endregion AdUnitID



        #region ApplicationBanners



        public static readonly DependencyProperty ApplicationBannersProperty =

            DependencyProperty.Register("ApplicationBanners", typeof(List<ApplicationBanner>), typeof(AdControl),

            new PropertyMetadata(null));



        /// <summary>

        /// The list of <c>ApplicationBanner</c> used when the <c>AdControl</c> object doesn't have any ads to show.

        /// </summary>

        public List<ApplicationBanner> ApplicationBanners

        {

            get

            {

                return (List<ApplicationBanner>)GetValue(ApplicationBannersProperty);

            }

            set

            {

                SetValue(ApplicationBannersProperty, value);

            }

        }

        #endregion ApplicationBanners



        #region ApplicationID

        public static readonly DependencyProperty ApplicationIDProperty =

            DependencyProperty.Register("ApplicationID", typeof(string), typeof(AdControl), new PropertyMetadata(null, ApplicationID_PropertyChangedCallback));



        private static void ApplicationID_PropertyChangedCallback(DependencyObject d, DependencyPropertyChangedEventArgs e)

        {

            AdControl control = ((AdControl)d);

            if (control.adControl1 != null)

                control.adControl1.ApplicationId = e.NewValue.ToString();

            else

                control.deferredApplicationID = e.NewValue.ToString();

        }



        /// <summary>

        /// The application ID of the app. This value is provided to you when you register the app with pubCenter

        /// </summary>

        /// <remarks>

        /// <para>Only one value for the application ID can be used within an app.</para>

        /// <para>If more than one value for the <c>ApplicationID</c> is used in different <c>AdControl</c> objects that are in the app, some controls will not receive ads and will raise an <c>ErrorOccurred</c> event.</para>

        /// </remarks>

        public string ApplicationID

        {

            get

            {

                return (string)GetValue(ApplicationIDProperty);

            }

            set

            {

                SetValue(ApplicationIDProperty, value);

            }

        }

        #endregion ApplicationID

    }

}