// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using System.Windows.Xps.Packaging;
using System.Windows.Documents;
using System.Windows.Markup;
 
namespace System.Windows.Xps.Serialization
{
    /// <summary>
    /// Class defining common functionality required to
    /// serialize a Document Paginator.
    /// </summary>
    internal class XpsOMDocumentPaginatorSerializer :
                   ReachSerializer
    {
        public
        XpsOMDocumentPaginatorSerializer(
            PackageSerializationManager manager
            )
            :
        base(manager)
        {
            ///
            /// Fail if manager is not XpsOMSerializationManager
            /// 
            _xpsOMSerializationManager = (XpsOMSerializationManager)manager;
        }
 
        public
        override
        void
        SerializeObject(
            Object serializedObject
            )
        {
            SerializableObjectContext serializableObjectContext = SerializeObjectInternal(serializedObject);
            PersistObjectData(serializableObjectContext);
        }
 
        internal
        SerializableObjectContext
        SerializeObjectInternal(
            Object serializedObject
            )
        {
            //
            // Create the ImageTable required by the Type Converters
            // The Image table at this time is shared / document
            //
            _xpsOMSerializationManager.ResourcePolicy.ImageCrcTable = new Dictionary<UInt32, Uri>();
 
            _xpsOMSerializationManager.ResourcePolicy.ImageUriHashTable = new Dictionary<int, Uri>();
            //
            // Create the ColorContextTable required by the Type Converters
            // The ColorContext table at this time is shared / document
            //
            _xpsOMSerializationManager.ResourcePolicy.ColorContextTable = new Dictionary<int, Uri>();
            SerializableObjectContext serializableObjectContext = new SerializableObjectContext(serializedObject, null);
            return serializableObjectContext;
        }
 
        /// <summary>
        ///
        /// </summary>
        internal
        override
        void
        PersistObjectData(
            SerializableObjectContext serializableObjectContext
            )
        {
            DocumentPaginator paginator = BeginPersistObjectData(serializableObjectContext);
 
            for (int i = 0; !paginator.IsPageCountValid || (i < paginator.PageCount); i++)
            {
                DocumentPage page = Toolbox.GetPage(paginator, i);
 
                ReachSerializer serializer = SerializationManager.GetSerializer(page);
 
                serializer?.SerializeObject(page);
            }
 
            EndPersistObjectData();
        }
 
        internal
        DocumentPaginator
        BeginPersistObjectData(
            SerializableObjectContext serializableObjectContext
            )
        {
            if (_xpsOMSerializationManager != null)
            {
                _xpsOMSerializationManager.RegisterDocumentStart();
                XpsSerializationPrintTicketRequiredEventArgs e =
                new XpsSerializationPrintTicketRequiredEventArgs(PrintTicketLevel.FixedDocumentPrintTicket,
                                                                 0);
 
                _xpsOMSerializationManager.OnXPSSerializationPrintTicketRequired(e);
 
                //
                // Serialize the data for the PrintTicket
                //
                if (e.Modified)
                {
                    if (e.PrintTicket != null)
                    {
                        PrintTicketSerializer serializer = new PrintTicketSerializer(SerializationManager);
                        serializer.SerializeObject(e.PrintTicket);
                    }
                }
 
                _xpsOMSerializationManager.StartNewDocument();
            }
 
            DocumentPaginator paginator = (DocumentPaginator)serializableObjectContext.TargetObject;
 
            XmlLanguage language = null;
 
            DependencyObject dependencyObject = paginator.Source as DependencyObject;
            if (dependencyObject != null)
            {
                language = (XmlLanguage)dependencyObject.GetValue(FrameworkContentElement.LanguageProperty);
            }
 
            if (language == null)
            {
                //If the language property is null, assign the language to the default
                language = XmlLanguage.GetLanguage(XpsS0Markup.XmlLangValue);
            }
 
            SerializationManager.Language = language;
 
            return paginator;
        }
 
        internal
        void
        EndPersistObjectData(
            )
        {
            _xpsOMSerializationManager.ReleaseXpsOMWriterForFixedDocument();
 
            //
            // Clear off the table from the resource policy
            //
            _xpsOMSerializationManager.ResourcePolicy.ImageCrcTable = null;
 
            _xpsOMSerializationManager.ResourcePolicy.ImageUriHashTable = null;
            //
            // Clear off the table from the resource policy
            //
            _xpsOMSerializationManager.ResourcePolicy.ColorContextTable = null;
            //
            // Signal to any registered callers that the Document has been serialized
            //
            XpsSerializationProgressChangedEventArgs progressEvent =
            new XpsSerializationProgressChangedEventArgs(XpsWritingProgressChangeLevel.FixedDocumentWritingProgress,
                                                         0,
                                                         0,
                                                         null);
 
            _xpsOMSerializationManager.RegisterDocumentEnd();
 
            _xpsOMSerializationManager.OnXPSSerializationProgressChanged(progressEvent);
        }
 
        private XpsOMSerializationManager _xpsOMSerializationManager;
    };
}