/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright The KiCad Developers, see AUTHORS.TXT for contributors.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, you may find one here:
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 * or you may search the http://www.gnu.org website for the version 2 license,
 * or you may write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 */

#include <vector>
#include <map>

#include <gal/cursors.h>
#include <kiplatform/ui.h>

// Cursor files
#include <cursors/cursor-add.xpm>
#include <cursors/cursor-component.xpm>
#include <cursors/cursor-eraser.xpm>
#include <cursors/cursor-label-global.xpm>
#include <cursors/cursor-label-hier.xpm>
#include <cursors/cursor-label-net.xpm>
#include <cursors/cursor-line-bus.xpm>
#include <cursors/cursor-line-graphic.xpm>
#include <cursors/cursor-line-wire.xpm>
#include <cursors/cursor-measure.xpm>
#include <cursors/cursor-pencil.xpm>
#include <cursors/cursor-select-lasso.xpm>
#include <cursors/cursor-select-window.xpm>
#include <cursors/cursor-subtract.xpm>
#include <cursors/cursor-text.xpm>
#include <cursors/cursor-xor.xpm>
#include <cursors/cursor-zoom-in.xpm>
#include <cursors/cursor-zoom-out.xpm>
#include <cursors/cursor_tune.xpm>
#include <cursors/voltage_probe.xpm>
#include <cursors/current_probe.xpm>

// HiDPI cursor files
#include <cursors/cursor-add64.xpm>
#include <cursors/cursor-component64.xpm>
#include <cursors/cursor-eraser64.xpm>
#include <cursors/cursor-label-global64.xpm>
#include <cursors/cursor-label-hier64.xpm>
#include <cursors/cursor-label-net64.xpm>
#include <cursors/cursor-line-bus64.xpm>
#include <cursors/cursor-line-graphic64.xpm>
#include <cursors/cursor-line-wire64.xpm>
#include <cursors/cursor-measure64.xpm>
#include <cursors/cursor-pencil64.xpm>
#include <cursors/cursor-select-lasso64.xpm>
#include <cursors/cursor-select-window64.xpm>
#include <cursors/cursor-subtract64.xpm>
#include <cursors/cursor-text64.xpm>
#include <cursors/cursor-xor64.xpm>
#include <cursors/cursor-zoom-in64.xpm>
#include <cursors/cursor-zoom-out64.xpm>
#include <cursors/cursor_tune64.xpm>
#include <cursors/voltage_probe64.xpm>
#include <cursors/current_probe64.xpm>


// Under MSW, the standard cursor is white on black.  Elsewhere it is black on white
#ifdef __WINDOWS__
#include <cursors/cursor-place.xpm>
#include <cursors/cursor-place64.xpm>
#include <cursors/cursor-select-m.xpm>
#include <cursors/cursor-select-m64.xpm>
#else
#include <cursors/cursor-place-black.xpm>
#include <cursors/cursor-place-black64.xpm>
#include <cursors/cursor-select-m-black.xpm>
#include <cursors/cursor-select-m-black64.xpm>
#endif

#include <wx/bitmap.h>
#include <wx/debug.h>
#include <wx/bmpbndl.h>


static const std::map<KICURSOR, std::vector<CURSOR_STORE::CURSOR_DEF>> cursors_defs = {
    {
        KICURSOR::VOLTAGE_PROBE,
        {
            { voltage_probe_xpm, { 1, 31 } },
            { voltage_probe64_xpm, { 1, 62 } }
        }
    },
    {
        KICURSOR::CURRENT_PROBE,
        {
            { current_probe_xpm, { 4, 27 } },
            { current_probe64_xpm, { 8, 54 } }
        }
    },
    {
        KICURSOR::TUNE,
        {
            { cursor_tune_xpm, { 1, 30 } },
            { cursor_tune64_xpm, { 2, 60 } }
        }
    },
    {
        KICURSOR::PENCIL,
        {
            { cursor_pencil_xpm, { 4, 27 } },
            { cursor_pencil64_xpm, { 8, 54 } }
        }
    },
    {
        KICURSOR::MOVING,
        {
            {
#ifdef __WINDOWS__
                cursor_select_m_xpm,
#else
                cursor_select_m_black_xpm,
#endif
                { 1, 1 }
            },
            {
#ifdef __WINDOWS__
                cursor_select_m64_xpm,
#else
                cursor_select_m_black64_xpm,
#endif
                { 2, 2 }
            }
        }
    },
    {
        KICURSOR::REMOVE,
        {
            { cursor_eraser_xpm, { 4, 4 } },
            { cursor_eraser64_xpm, { 8, 8 } }
        }
    },
    {
        KICURSOR::TEXT,
        {
            { cursor_text_xpm, { 7, 7 } },
            { cursor_text64_xpm, { 14, 14 } }
        }
    },
    {
        KICURSOR::MEASURE,
        {
            { cursor_measure_xpm, { 4, 4 } },
            { cursor_measure64_xpm, { 8, 8 } }
        }
    },
    {
        KICURSOR::ADD,
        {
            { cursor_add_xpm, { 7, 7 } },
            { cursor_add64_xpm, { 14, 14 } }
        }
    },
    {
        KICURSOR::SUBTRACT,
        {
            { cursor_subtract_xpm, { 7, 7 } },
            { cursor_subtract64_xpm, { 14, 14 } }
        }
    },
    {
        KICURSOR::XOR,
        {
            { cursor_xor_xpm, { 7, 7 } },
            { cursor_xor64_xpm, { 14, 14 } }
        }
    },
    {
        KICURSOR::ZOOM_IN,
        {
            { cursor_zoom_in_xpm, { 6, 6 } },
            { cursor_zoom_in64_xpm, { 12, 12 } }
        }
    },
    {
        KICURSOR::ZOOM_OUT,
        {
            { cursor_zoom_out_xpm, { 6, 6 } },
            { cursor_zoom_out64_xpm, { 12, 12 } }
        }
    },
    {
        KICURSOR::LABEL_NET,
        {
            { cursor_label_net_xpm, { 7, 7 } },
            { cursor_label_net64_xpm, { 14, 14 } }
        }
    },
    {
        KICURSOR::LABEL_GLOBAL,
        {
            { cursor_label_global_xpm, { 7, 7 } },
            { cursor_label_global64_xpm, { 14, 14 } }
        }
    },
    {
        KICURSOR::COMPONENT,
        {
            { cursor_component_xpm, { 7, 7 } },
            { cursor_component64_xpm, { 14, 14 } }
        }
    },
    {
        KICURSOR::SELECT_LASSO,
        {
            { cursor_select_lasso_xpm, { 7, 7 } },
            { cursor_select_lasso64_xpm, { 14, 14 } }
        }
    },
    {
        KICURSOR::SELECT_WINDOW,
        {
            { cursor_select_window_xpm, { 7, 10 } },
            { cursor_select_window64_xpm, { 14, 20 } }
        }
    },
    {
        KICURSOR::LINE_BUS,
        {
            { cursor_line_bus_xpm, { 5, 26 } },
            { cursor_line_bus64_xpm, { 10, 52 } }
        }
    },
    {
        KICURSOR::LINE_WIRE,
        {
            { cursor_line_wire_xpm, { 5, 26 } },
            { cursor_line_wire64_xpm, { 10, 52 } }
        }
    },
    {
        KICURSOR::LINE_GRAPHIC,
        {
            { cursor_line_graphic_xpm, { 5, 26 } },
            { cursor_line_graphic64_xpm, { 10, 52 } }
        }
    },
    {
        KICURSOR::LABEL_HIER,
        {
            { cursor_label_hier_xpm, { 7, 7 } },
            { cursor_label_hier64_xpm, { 14, 14 } }
        }
    },
    {
        KICURSOR::PLACE,
        {
            {
#ifdef __WINDOWS__
                cursor_place_xpm,
#else
                cursor_place_black_xpm,
#endif
                { 1, 1 }
            },
            {
#ifdef __WINDOWS__
                cursor_place64_xpm,
#else
                cursor_place_black64_xpm,
#endif
                { 2, 2 }
            }
        }
    }
};


CURSOR_STORE::CURSOR_STORE()
{
    for( const auto& [cursorId, defs] : cursors_defs )
    {
        wxCHECK2( !defs.empty(), continue );

#if wxCHECK_VERSION( 3, 3, 0 )
        // For wx 3.3+, create cursor bundles from the cursor definitions
        std::vector<wxBitmap> bitmaps;
            
        for( const auto& [xpm, hotspot_def] : defs )
        {
            wxCHECK2( xpm, continue );
            bitmaps.push_back( wxBitmap( xpm ) );
        }

        wxBitmapBundle bitmapBundle = wxBitmapBundle::FromBitmaps( bitmaps );

        wxPoint hotspot = defs[0].m_hotspot; // Use hotspot from standard cursor
        m_bundleMap[cursorId] = wxCursorBundle( bitmapBundle, hotspot );
#else
        auto constructCursor = []( const CURSOR_STORE::CURSOR_DEF& aDef ) -> wxCursor
        {
            wxCHECK( aDef.m_xpm, wxNullCursor );
            wxImage xpmImage = wxImage( aDef.m_xpm );

            xpmImage.SetOption( wxIMAGE_OPTION_CUR_HOTSPOT_X, aDef.m_hotspot.x );
            xpmImage.SetOption( wxIMAGE_OPTION_CUR_HOTSPOT_Y, aDef.m_hotspot.y );

            return wxCursor( xpmImage );
        };

        // Add standard cursor (first definition)
        m_standardCursorMap[cursorId] = constructCursor( defs[0] );

        // Add HiDPI cursor (second definition if available, otherwise fallback to standard)
        if( defs.size() > 1 )
            m_hidpiCursorMap[cursorId] = constructCursor( defs[1] );
        else
            m_hidpiCursorMap[cursorId] = m_standardCursorMap[cursorId];
#endif
    }
}

#if wxCHECK_VERSION( 3, 3, 0 )
const wxCursorBundle& CURSOR_STORE::storeGetBundle( KICURSOR aIdKey ) const
{
    const auto find_iter = m_bundleMap.find( aIdKey );

    if( find_iter != m_bundleMap.end() )
        return find_iter->second;

    wxASSERT_MSG( false, wxString::Format( "Could not find cursor bundle with ID %d",
                                           static_cast<int>( aIdKey ) ) );

    static const wxCursorBundle invalid;

    return invalid;
}
#else
const wxCursor& CURSOR_STORE::storeGetCursor( KICURSOR aIdKey, bool aHiDPI ) const
{
    const auto& store = aHiDPI ? m_hidpiCursorMap : m_standardCursorMap;
    const auto  find_iter = store.find( aIdKey );

    if( find_iter != store.end() )
        return find_iter->second;

    wxASSERT_MSG( false, wxString::Format( "Could not find cursor with ID %d", static_cast<int>( aIdKey ) ) );

    return wxNullCursor;
}
#endif

/* static */
const WX_CURSOR_TYPE CURSOR_STORE::GetCursor( KICURSOR aCursorType, bool aHiDPI )
{
    // Use a single cursor store instance
    static CURSOR_STORE store;

    wxStockCursor stock = GetStockCursor( aCursorType );

    if( stock != wxCURSOR_MAX )
        return WX_CURSOR_TYPE( stock );

#if wxCHECK_VERSION( 3, 3, 0 )
    // For wx 3.3+, return the pre-built cursor bundle (aHiDPI is ignored as bundles contain both)
    return store.storeGetBundle( aCursorType );
#else
    return store.storeGetCursor( aCursorType, aHiDPI );
#endif
}

/* static */
wxStockCursor CURSOR_STORE::GetStockCursor( KICURSOR aCursorType )
{
    wxStockCursor stockCursor;
    switch( aCursorType )
    {
    case KICURSOR::MOVING:
        stockCursor = wxCURSOR_SIZING;
        break;
    case KICURSOR::BULLSEYE:
        stockCursor = wxCURSOR_BULLSEYE;
        break;
    case KICURSOR::HAND:
        stockCursor = wxCURSOR_HAND;
        break;
    case KICURSOR::ARROW:
        stockCursor = wxCURSOR_ARROW;
        break;
    default:
        stockCursor = wxCURSOR_MAX;
        break;
    }

    if( !KIPLATFORM::UI::IsStockCursorOk( stockCursor ) )
        stockCursor = wxCURSOR_MAX;

    return stockCursor;
}