//
// MainPage.xaml.h
// Declaration of the MainPage class.
//

#pragma once

#include "MainPage.g.h"
#include "ppl.h"
#include "ppltasks.h"
#include <collection.h>
#include <algorithm>
#include <assert.h>
#include "DocumentPage.h"
#include "status.h"

using namespace Platform;
using namespace Concurrency;
using namespace Windows::Storage;
using namespace Windows::UI::Xaml;
using namespace Windows::UI::Xaml::Media::Imaging;
using namespace Windows::Storage::Streams;
using namespace Windows::Foundation;
using namespace Windows::UI::Xaml::Controls;
using namespace Windows::UI::Xaml::Media;
using namespace Windows::UI::Xaml::Input;
using namespace Windows::UI::Xaml::Shapes;
using namespace Windows::Foundation::Collections;
using namespace Platform::Collections;
using namespace Windows::UI::ViewManagement;
using namespace Windows::UI::Popups;
using namespace Windows::UI::Xaml::Navigation;
using namespace Windows::ApplicationModel;
using namespace mupdfwinrt;

using namespace Windows::Graphics::Display;
using namespace Windows::Graphics::Printing;
using namespace Windows::UI;
using namespace Windows::UI::Text;
using namespace Windows::UI::Xaml::Documents;
using namespace Windows::Graphics::Printing::OptionDetails;
using namespace Windows::UI::Xaml::Printing;

typedef enum
{
	StatusMessage,
	ErrorMessage
} NotifyType_t;

typedef enum {
	REN_AVAILABLE = 0,
	REN_THUMBS,
	REN_UPDATE_THUMB_CANVAS,
	REN_PAGE			/* Used to ignore value when source based setting */
} RenderingStatus_t;

typedef struct spatial_info_s
{
	Point size;
	double scale_factor;
} spatial_info_t;

namespace mupdf_cpp
{

	class PageRangeException
    {
    private:
        std::wstring m_message;
    public:
        PageRangeException(std::wstring &message)
        {
            m_message = message;
        }
        ~PageRangeException()
        {        
        }
        std::wstring get_DisplayMessage()
        {
            return m_message;
        }
    };

    public value class PrintPageDesc
    {
    public:
        Size    margin;
        Size    pagesize;
        Size    printpagesize;
		Size	resolution;

        friend bool operator == (PrintPageDesc pp1, PrintPageDesc pp2)
        {
            bool equal = (std::abs(pp1.pagesize.Width - pp2.pagesize.Width) < FLT_EPSILON) &&
                         (std::abs(pp1.pagesize.Height - pp2.pagesize.Height) < FLT_EPSILON);
            if (equal)
            {
                equal = (std::abs(pp1.printpagesize.Width - pp2.printpagesize.Width) < FLT_EPSILON) &&
                        (std::abs(pp1.printpagesize.Height - pp2.printpagesize.Height) < FLT_EPSILON);
            }
            if (equal)
            {
                equal = (std::abs(pp1.resolution.Width - pp2.resolution.Width) < FLT_EPSILON) &&
                        (std::abs(pp1.resolution.Height - pp2.resolution.Height) < FLT_EPSILON);
            }
            return equal;
		}
        friend bool operator != (PrintPageDesc pp1, PrintPageDesc pp2)
        {
            return !(pp1 == pp2);
        }
    };

	/// <summary>
	/// An empty page that can be used on its own or navigated to within a Frame.
	/// </summary>
	public ref class MainPage sealed
	{
	public:
		MainPage();

		property Windows::ApplicationModel::Activation::ProtocolActivatedEventArgs^ ProtocolEvent
		{
			Windows::ApplicationModel::Activation::ProtocolActivatedEventArgs^ get() { return _protocolEventArgs; }
			void set(Windows::ApplicationModel::Activation::ProtocolActivatedEventArgs^ value) { _protocolEventArgs = value; }
		}

		property Windows::ApplicationModel::Activation::FileActivatedEventArgs^ FileEvent
		{
			Windows::ApplicationModel::Activation::FileActivatedEventArgs^ get() { return _fileEventArgs; }
			void set(Windows::ApplicationModel::Activation::FileActivatedEventArgs^ value) { _fileEventArgs = value; }
		}
		void NotifyUser(String^ strMessage, int type);

	protected:
		virtual void OnNavigatedTo(Windows::UI::Xaml::Navigation::NavigationEventArgs^ e) override;
		virtual void OnKeyDown(Windows::UI::Xaml::Input::KeyRoutedEventArgs^ e) override;
        property Windows::Graphics::Printing::IPrintDocumentSource^ PrintDocumentSource
        {
            Windows::Graphics::Printing::IPrintDocumentSource^ get()
            {
                return m_printdoc_source;
            }
        }

	private:
		Windows::Foundation::EventRegistrationToken _pageLoadedHandlerToken;
		Vector<DocumentPage^>^ m_docPages;
		Vector<DocumentPage^>^ m_thumbnails;
		Vector<IVector<RectList^>^>^ m_page_link_list;
		Vector<int>^ m_linkset;
		Vector<RectList^>^ m_text_list;
		int m_rectlist_page;
		mudocument^ mu_doc;
		bool m_file_open;
		int  m_currpage;
		int  m_searchpage;
		int  m_num_pages;
		int  m_slider_min;
		int  m_slider_max;
		bool m_init_done;
		bool m_flip_from_searchlink;
		bool m_links_on;
		int m_search_rect_count;
		cancellation_token_source m_searchcts;
		bool m_page_update;
		long long m_memory_use;
		WriteableBitmap ^m_BlankBmp;
		String^ m_textcolor;
		String^ m_linkcolor;
		FlipView^ m_curr_flipView;
		RenderingStatus_t m_ren_status;
		cancellation_token_source m_ThumbCancel;
		bool m_insearch;		/* Used for UI display */
		bool m_search_active;  /* Used to avoid multiple UI clicks */
		bool m_sliderchange;
		double m_Progress;
		double m_doczoom;

		/* Print related */
		Vector<DocumentPage^>^ m_printpages;
		concurrency::critical_section m_printlock;
        EventRegistrationToken m_printTaskRequestedEventToken;
        PrintDocument^ m_printdoc;
        IPrintDocumentSource^  m_printdoc_source;
        LONGLONG m_requestCount;
        PrintPageDesc m_printpagedesc;
		int m_printresolution;
		bool m_printcrop;
		bool m_pageRangeEditVisible;
		std::vector<int> m_ppage_num_list;

		void ReplaceImage(int page_num, InMemoryRandomAccessStream^ ras, Point ras_size, double zoom);
		void Picker(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e);
		void Searcher(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e);
		void OpenDocumentPrep(StorageFile^ file);
		void OpenDocument(StorageFile^ file);
		void InitialRender();
		void RenderRange(int curr_page);
		void CleanUp();
		void UpdatePage(int page_num, InMemoryRandomAccessStream^ ras, Point ras_size, Page_Content_t content_type, double zoom);
		void CreateBlank(int width, int height);
		void HandleFileNotFoundException(Platform::COMException^ e);
		void NotifyUserFileNotExist();
		void SetFlipView();
		void FlipView_SelectionChanged(Object^ sender, SelectionChangedEventArgs^ e);
		void SearchNext(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e);
		void SearchPrev(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e);
		void CancelSearch(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e);
		void SearchInDirection(int dir, String^ textToFind);
		void ShowSearchResults(int page_num, int box_count);
		void ClearTextSearch();
		void AddTextCanvas();
		void GridSizeChanged();
		void UpDatePageSizes();
		void ShowThumbnail();
		void Canvas_ManipulationCompleted(Platform::Object^ sender, Windows::UI::Xaml::Input::ManipulationCompletedRoutedEventArgs^ e);
		void AddThumbNail(int page_num, FlipView^ flip_view);
		spatial_info_t InitSpatial(double scale);
		void RenderThumbs();
		void SetThumb(int page_num, bool replace);
		void ReleasePages(int old_page, int new_page);
		void Linker(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e);
		void AddLinkCanvas();
		void ClearLinks();
		void InvalidateLinks();
		void ContentDisplay(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e);
		void ListView_Single_Tap(Platform::Object^ sender, Windows::UI::Xaml::Input::TappedRoutedEventArgs^ e);
		void ContentSelected(Platform::Object^ sender, Windows::UI::Xaml::Controls::ItemClickEventArgs^ e);
		void ContentChanged(Platform::Object^ sender, Windows::UI::Xaml::Controls::SelectionChangedEventArgs^ e);
		void Reflower(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e);
		void topAppBar_Loaded(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e);
		void UpdateAppBarButtonViewState();
		bool EnsureUnsnapped();
		void ExitInvokedHandler(Windows::UI::Popups::IUICommand^ command);
		void OKInvokedHandler(Windows::UI::Popups::IUICommand^ command);
		Point ComputePageSize(spatial_info_t spatial_info, int page_num);
		void ScrollChanged(Platform::Object^ sender, Windows::UI::Xaml::Controls::ScrollViewerViewChangedEventArgs^ e);
		void LinkTapped(Platform::Object^ sender, Windows::UI::Xaml::Input::TappedRoutedEventArgs^ e);
		void SearchProgress(IAsyncOperationWithProgress<int, double>^ operation, double status);
		void PasswordOK(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e);
		void App_Suspending(Object^ sender, SuspendingEventArgs^ e);
		void ExceptionHandler(Object^ sender, UnhandledExceptionEventArgs^ e);
		void ZoomInPress(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e);
		void ZoomOutPress(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e);
		void NonTouchZoom(int zoom);
		void ShowSearchBox();
		bool IsNotStandardView();
		void Page_Loaded(Object^ sender, RoutedEventArgs^ e);
		Windows::ApplicationModel::Activation::ProtocolActivatedEventArgs^ _protocolEventArgs;
		Windows::ApplicationModel::Activation::FileActivatedEventArgs^ _fileEventArgs;
		void Slider_ValueChanged(Platform::Object^ sender, Windows::UI::Xaml::Input::PointerRoutedEventArgs^ e);
		void Slider_Key(Platform::Object^ sender, Windows::UI::Xaml::Input::KeyRoutedEventArgs^ e);
		void Slider_Common();
		void FlipView_Started(Platform::Object^ sender, Windows::UI::Xaml::Input::ManipulationStartedRoutedEventArgs^ e);
		void UpdateZoom(int page_num, bool ignore_curr);

		/* Print Related */
		void RegisterForPrinting();
		void UnregisterForPrinting();
		void PrintTaskRequested(PrintManager^ sender, PrintTaskRequestedEventArgs^ e);
		void ClearPrintCollection();
		void CreatePrintPreviewPages(Object^ sender, PaginateEventArgs^ e);
		void GetPrintPreviewPages(Object^ sender, GetPreviewPageEventArgs^ e);
		void UpdatePreview(int page_num, InMemoryRandomAccessStream^ ras, 
						   Point ras_size, Page_Content_t content_type, double zoom_in);
		void CleanUpPreview(int new_page);
		void AddPrintPages(Object^ sender, AddPagesEventArgs^ e);
		void PrintOptionsChanged(PrintTaskOptionDetails^ sender, PrintTaskOptionChangedEventArgs^ args);
		void RefreshPreview();
		void RemovePageRangeEdit(PrintTaskOptionDetails^ printTaskOptionDetails);
		void SplitString(String^ string, wchar_t delimiter, std::vector<std::wstring>& words);
		void GetPagesInRange(String^ pageRange);
	};
}