api_handler_pcb.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2023 Jon Evans <[email protected]>
 * Copyright (C) 2023 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 3 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, see <http://www.gnu.org/licenses/>.
 */
 
#include <magic_enum.hpp>
 
#include <api/api_handler_pcb.h>
#include <api/api_pcb_utils.h>
#include <api/api_enums.h>
#include <api/api_utils.h>
#include <board_commit.h>
#include <board_design_settings.h>
#include <footprint.h>
#include <kicad_clipboard.h>
#include <netinfo.h>
#include <pad.h>
#include <pcb_edit_frame.h>
#include <pcb_group.h>
#include <pcb_reference_image.h>
#include <pcb_shape.h>
#include <pcb_text.h>
#include <pcb_textbox.h>
#include <pcb_track.h>
#include <project.h>
#include <tool/tool_manager.h>
#include <tools/pcb_actions.h>
#include <tools/pcb_selection_tool.h>
#include <zone.h>
 
#include <api/common/types/base_types.pb.h>
#include <widgets/appearance_controls.h>
 
using namespace kiapi::common::commands;
using types::CommandStatus;
using types::DocumentType;
using types::ItemRequestStatus;
 
 
API_HANDLER_PCB::API_HANDLER_PCB( PCB_EDIT_FRAME* aFrame ) :
        API_HANDLER_EDITOR( aFrame )
{
    registerHandler<RunAction, RunActionResponse>( &API_HANDLER_PCB::handleRunAction );
    registerHandler<GetOpenDocuments, GetOpenDocumentsResponse>(
            &API_HANDLER_PCB::handleGetOpenDocuments );
 
 
    registerHandler<GetItems, GetItemsResponse>( &API_HANDLER_PCB::handleGetItems );
 
    registerHandler<GetBoardStackup, BoardStackupResponse>( &API_HANDLER_PCB::handleGetStackup );
    registerHandler<GetGraphicsDefaults, GraphicsDefaultsResponse>(
            &API_HANDLER_PCB::handleGetGraphicsDefaults );
    registerHandler<GetBoundingBox, GetBoundingBoxResponse>(
            &API_HANDLER_PCB::handleGetBoundingBox );
    registerHandler<GetPadShapeAsPolygon, PadShapeAsPolygonResponse>(
            &API_HANDLER_PCB::handleGetPadShapeAsPolygon );
    registerHandler<GetTitleBlockInfo, types::TitleBlockInfo>(
            &API_HANDLER_PCB::handleGetTitleBlockInfo );
    registerHandler<ExpandTextVariables, ExpandTextVariablesResponse>(
            &API_HANDLER_PCB::handleExpandTextVariables );
 
    registerHandler<InteractiveMoveItems, Empty>( &API_HANDLER_PCB::handleInteractiveMoveItems );
    registerHandler<GetNets, NetsResponse>( &API_HANDLER_PCB::handleGetNets );
    registerHandler<RefillZones, Empty>( &API_HANDLER_PCB::handleRefillZones );
 
    registerHandler<SaveDocumentToString, SavedDocumentResponse>(
            &API_HANDLER_PCB::handleSaveDocumentToString );
    registerHandler<SaveSelectionToString, SavedSelectionResponse>(
            &API_HANDLER_PCB::handleSaveSelectionToString );
    registerHandler<ParseAndCreateItemsFromString, CreateItemsResponse>(
            &API_HANDLER_PCB::handleParseAndCreateItemsFromString );
    registerHandler<GetVisibleLayers, BoardLayers>( &API_HANDLER_PCB::handleGetVisibleLayers );
    registerHandler<SetVisibleLayers, Empty>( &API_HANDLER_PCB::handleSetVisibleLayers );
    registerHandler<GetActiveLayer, BoardLayerResponse>( &API_HANDLER_PCB::handleGetActiveLayer );
    registerHandler<SetActiveLayer, Empty>( &API_HANDLER_PCB::handleSetActiveLayer );
}
 
 
PCB_EDIT_FRAME* API_HANDLER_PCB::frame() const
{
    return static_cast<PCB_EDIT_FRAME*>( m_frame );
}
 
 
HANDLER_RESULT<RunActionResponse> API_HANDLER_PCB::handleRunAction( RunAction& aRequest,
                                                                    const HANDLER_CONTEXT& )
{
    if( std::optional<ApiResponseStatus> busy = checkForBusy() )
        return tl::unexpected( *busy );
 
    RunActionResponse response;
 
    if( frame()->GetToolManager()->RunAction( aRequest.action(), true ) )
        response.set_status( RunActionStatus::RAS_OK );
    else
        response.set_status( RunActionStatus::RAS_INVALID );
 
    return response;
}
 
 
HANDLER_RESULT<GetOpenDocumentsResponse> API_HANDLER_PCB::handleGetOpenDocuments(
        GetOpenDocuments& aMsg, const HANDLER_CONTEXT& )
{
    if( aMsg.type() != DocumentType::DOCTYPE_PCB )
    {
        ApiResponseStatus e;
        // No message needed for AS_UNHANDLED; this is an internal flag for the API server
        e.set_status( ApiStatusCode::AS_UNHANDLED );
        return tl::unexpected( e );
    }
 
    GetOpenDocumentsResponse response;
    common::types::DocumentSpecifier doc;
 
    wxFileName fn( frame()->GetCurrentFileName() );
 
    doc.set_type( DocumentType::DOCTYPE_PCB );
    doc.set_board_filename( fn.GetFullName() );
 
    doc.mutable_project()->set_name( frame()->Prj().GetProjectName().ToStdString() );
    doc.mutable_project()->set_path( frame()->Prj().GetProjectDirectory().ToStdString() );
 
    response.mutable_documents()->Add( std::move( doc ) );
    return response;
}
 
 
void API_HANDLER_PCB::pushCurrentCommit( const HANDLER_CONTEXT& aCtx, const wxString& aMessage )
{
    API_HANDLER_EDITOR::pushCurrentCommit( aCtx, aMessage );
    frame()->Refresh();
}
 
 
std::unique_ptr<COMMIT> API_HANDLER_PCB::createCommit()
{
    return std::make_unique<BOARD_COMMIT>( frame() );
}
 
 
std::optional<BOARD_ITEM*> API_HANDLER_PCB::getItemById( const KIID& aId ) const
{
    BOARD_ITEM* item = frame()->GetBoard()->GetItem( aId );
 
    if( item == DELETED_BOARD_ITEM::GetInstance() )
        return std::nullopt;
 
    return item;
}
 
 
bool API_HANDLER_PCB::validateDocumentInternal( const DocumentSpecifier& aDocument ) const
{
    if( aDocument.type() != DocumentType::DOCTYPE_PCB )
        return false;
 
    wxFileName fn( frame()->GetCurrentFileName() );
    return 0 == aDocument.board_filename().compare( fn.GetFullName() );
}
 
 
HANDLER_RESULT<std::unique_ptr<BOARD_ITEM>> API_HANDLER_PCB::createItemForType( KICAD_T aType,
        BOARD_ITEM_CONTAINER* aContainer )
{
    if( !aContainer )
    {
        ApiResponseStatus e;
        e.set_status( ApiStatusCode::AS_BAD_REQUEST );
        e.set_error_message( "Tried to create an item in a null container" );
        return tl::unexpected( e );
    }
 
    if( aType == PCB_PAD_T && !dynamic_cast<FOOTPRINT*>( aContainer ) )
    {
        ApiResponseStatus e;
        e.set_status( ApiStatusCode::AS_BAD_REQUEST );
        e.set_error_message( fmt::format( "Tried to create a pad in {}, which is not a footprint",
                                          aContainer->GetFriendlyName().ToStdString() ) );
        return tl::unexpected( e );
    }
    else if( aType == PCB_FOOTPRINT_T && !dynamic_cast<BOARD*>( aContainer ) )
    {
        ApiResponseStatus e;
        e.set_status( ApiStatusCode::AS_BAD_REQUEST );
        e.set_error_message( fmt::format( "Tried to create a footprint in {}, which is not a board",
                                          aContainer->GetFriendlyName().ToStdString() ) );
        return tl::unexpected( e );
    }
 
    std::unique_ptr<BOARD_ITEM> created = CreateItemForType( aType, aContainer );
 
    if( !created )
    {
        ApiResponseStatus e;
        e.set_status( ApiStatusCode::AS_BAD_REQUEST );
        e.set_error_message( fmt::format( "Tried to create an item of type {}, which is unhandled",
                                          magic_enum::enum_name( aType ) ) );
        return tl::unexpected( e );
    }
 
    return created;
}
 
 
HANDLER_RESULT<ItemRequestStatus> API_HANDLER_PCB::handleCreateUpdateItemsInternal( bool aCreate,
        const HANDLER_CONTEXT& aCtx,
        const types::ItemHeader &aHeader,
        const google::protobuf::RepeatedPtrField<google::protobuf::Any>& aItems,
        std::function<void( ItemStatus, google::protobuf::Any )> aItemHandler )
{
    ApiResponseStatus e;
 
    auto containerResult = validateItemHeaderDocument( aHeader );
 
    if( !containerResult && containerResult.error().status() == ApiStatusCode::AS_UNHANDLED )
    {
        // No message needed for AS_UNHANDLED; this is an internal flag for the API server
        e.set_status( ApiStatusCode::AS_UNHANDLED );
        return tl::unexpected( e );
    }
    else if( !containerResult )
    {
        e.CopyFrom( containerResult.error() );
        return tl::unexpected( e );
    }
 
    BOARD* board = frame()->GetBoard();
    BOARD_ITEM_CONTAINER* container = board;
 
    if( containerResult->has_value() )
    {
        const KIID& containerId = **containerResult;
        std::optional<BOARD_ITEM*> optItem = getItemById( containerId );
 
        if( optItem )
        {
            container = dynamic_cast<BOARD_ITEM_CONTAINER*>( *optItem );
 
            if( !container )
            {
                e.set_status( ApiStatusCode::AS_BAD_REQUEST );
                e.set_error_message( fmt::format(
                        "The requested container {} is not a valid board item container",
                        containerId.AsStdString() ) );
                return tl::unexpected( e );
            }
        }
        else
        {
            e.set_status( ApiStatusCode::AS_BAD_REQUEST );
            e.set_error_message( fmt::format(
                    "The requested container {} does not exist in this document",
                    containerId.AsStdString() ) );
            return tl::unexpected( e );
        }
    }
 
    BOARD_COMMIT* commit = static_cast<BOARD_COMMIT*>( getCurrentCommit( aCtx ) );
 
    for( const google::protobuf::Any& anyItem : aItems )
    {
        ItemStatus status;
        std::optional<KICAD_T> type = TypeNameFromAny( anyItem );
 
        if( !type )
        {
            status.set_code( ItemStatusCode::ISC_INVALID_TYPE );
            status.set_error_message( fmt::format( "Could not decode a valid type from {}",
                                                   anyItem.type_url() ) );
            aItemHandler( status, anyItem );
            continue;
        }
 
        if( type == PCB_DIMENSION_T )
        {
            board::types::Dimension dimension;
            anyItem.UnpackTo( &dimension );
 
            switch( dimension.dimension_style_case() )
            {
            case board::types::Dimension::kAligned:    type = PCB_DIM_ALIGNED_T;    break;
            case board::types::Dimension::kOrthogonal: type = PCB_DIM_ORTHOGONAL_T; break;
            case board::types::Dimension::kRadial:     type = PCB_DIM_RADIAL_T;     break;
            case board::types::Dimension::kLeader:     type = PCB_DIM_LEADER_T;     break;
            case board::types::Dimension::kCenter:     type = PCB_DIM_CENTER_T;     break;
            case board::types::Dimension::DIMENSION_STYLE_NOT_SET: break;
            }
        }
 
        HANDLER_RESULT<std::unique_ptr<BOARD_ITEM>> creationResult =
                createItemForType( *type, container );
 
        if( !creationResult )
        {
            status.set_code( ItemStatusCode::ISC_INVALID_TYPE );
            status.set_error_message( creationResult.error().error_message() );
            aItemHandler( status, anyItem );
            continue;
        }
 
        std::unique_ptr<BOARD_ITEM> item( std::move( *creationResult ) );
 
        if( !item->Deserialize( anyItem ) )
        {
            e.set_status( ApiStatusCode::AS_BAD_REQUEST );
            e.set_error_message( fmt::format( "could not unpack {} from request",
                                              item->GetClass().ToStdString() ) );
            return tl::unexpected( e );
        }
 
        std::optional<BOARD_ITEM*> optItem = getItemById( item->m_Uuid );
 
        if( aCreate && optItem )
        {
            status.set_code( ItemStatusCode::ISC_EXISTING );
            status.set_error_message( fmt::format( "an item with UUID {} already exists",
                                                   item->m_Uuid.AsStdString() ) );
            aItemHandler( status, anyItem );
            continue;
        }
        else if( !aCreate && !optItem )
        {
            status.set_code( ItemStatusCode::ISC_NONEXISTENT );
            status.set_error_message( fmt::format( "an item with UUID {} does not exist",
                                                   item->m_Uuid.AsStdString() ) );
            aItemHandler( status, anyItem );
            continue;
        }
 
        if( aCreate && !board->GetEnabledLayers().Contains( item->GetLayer() ) )
        {
            status.set_code( ItemStatusCode::ISC_INVALID_DATA );
            status.set_error_message( fmt::format( "attempted to add item on disabled layer {}",
                                                   LayerName( item->GetLayer() ).ToStdString() ) );
            aItemHandler( status, anyItem );
            continue;
        }
 
        status.set_code( ItemStatusCode::ISC_OK );
        google::protobuf::Any newItem;
 
        if( aCreate )
        {
            item->Serialize( newItem );
            commit->Add( item.release() );
        }
        else
        {
            BOARD_ITEM* boardItem = *optItem;
            commit->Modify( boardItem );
            boardItem->SwapItemData( item.get() );
            boardItem->Serialize( newItem );
        }
 
        aItemHandler( status, newItem );
    }
 
    if( !m_activeClients.count( aCtx.ClientName ) )
    {
        pushCurrentCommit( aCtx, aCreate ? _( "Created items via API" )
                                         : _( "Added items via API" ) );
    }
 
 
    return ItemRequestStatus::IRS_OK;
}
 
 
HANDLER_RESULT<GetItemsResponse> API_HANDLER_PCB::handleGetItems( GetItems& aMsg,
                                                                  const HANDLER_CONTEXT& )
{
    if( std::optional<ApiResponseStatus> busy = checkForBusy() )
        return tl::unexpected( *busy );
 
    if( !validateItemHeaderDocument( aMsg.header() ) )
    {
        ApiResponseStatus e;
        // No message needed for AS_UNHANDLED; this is an internal flag for the API server
        e.set_status( ApiStatusCode::AS_UNHANDLED );
        return tl::unexpected( e );
    }
 
    GetItemsResponse response;
 
    BOARD* board = frame()->GetBoard();
    std::vector<BOARD_ITEM*> items;
    std::set<KICAD_T> typesRequested, typesInserted;
    bool handledAnything = false;
 
    for( int typeRaw : aMsg.types() )
    {
        auto typeMessage = static_cast<common::types::KiCadObjectType>( typeRaw );
        KICAD_T type = FromProtoEnum<KICAD_T>( typeMessage );
 
        if( type == TYPE_NOT_INIT )
            continue;
 
        typesRequested.emplace( type );
 
        if( typesInserted.count( type ) )
            continue;
 
        switch( type )
        {
        case PCB_TRACE_T:
        case PCB_ARC_T:
        case PCB_VIA_T:
            handledAnything = true;
            std::copy( board->Tracks().begin(), board->Tracks().end(),
                       std::back_inserter( items ) );
            typesInserted.insert( { PCB_TRACE_T, PCB_ARC_T, PCB_VIA_T } );
            break;
 
        case PCB_PAD_T:
        {
            handledAnything = true;
 
            for( FOOTPRINT* fp : board->Footprints() )
            {
                std::copy( fp->Pads().begin(), fp->Pads().end(),
                           std::back_inserter( items ) );
            }
 
            typesInserted.insert( PCB_PAD_T );
            break;
        }
 
        case PCB_FOOTPRINT_T:
        {
            handledAnything = true;
 
            std::copy( board->Footprints().begin(), board->Footprints().end(),
                       std::back_inserter( items ) );
 
            typesInserted.insert( PCB_FOOTPRINT_T );
            break;
        }
 
        case PCB_SHAPE_T:
        case PCB_TEXT_T:
        case PCB_TEXTBOX_T:
        {
            handledAnything = true;
            bool inserted = false;
 
            for( BOARD_ITEM* item : board->Drawings() )
            {
                if( item->Type() == type )
                {
                    items.emplace_back( item );
                    inserted = true;
                }
            }
 
            if( inserted )
                typesInserted.insert( PCB_SHAPE_T );
 
            break;
        }
 
        case PCB_ZONE_T:
        {
            handledAnything = true;
 
            std::copy( board->Zones().begin(), board->Zones().end(),
                       std::back_inserter( items ) );
 
            typesInserted.insert( PCB_ZONE_T );
            break;
        }
 
        default:
            break;
        }
    }
 
    if( !handledAnything )
    {
        ApiResponseStatus e;
        e.set_status( ApiStatusCode::AS_BAD_REQUEST );
        e.set_error_message( "none of the requested types are valid for a Board object" );
        return tl::unexpected( e );
    }
 
    for( const BOARD_ITEM* item : items )
    {
        if( !typesRequested.count( item->Type() ) )
            continue;
 
        google::protobuf::Any itemBuf;
        item->Serialize( itemBuf );
        response.mutable_items()->Add( std::move( itemBuf ) );
    }
 
    response.set_status( ItemRequestStatus::IRS_OK );
    return response;
}
 
 
void API_HANDLER_PCB::deleteItemsInternal( std::map<KIID, ItemDeletionStatus>& aItemsToDelete,
                                           const HANDLER_CONTEXT& aCtx )
{
    BOARD* board = frame()->GetBoard();
    std::vector<BOARD_ITEM*> validatedItems;
 
    for( std::pair<const KIID, ItemDeletionStatus> pair : aItemsToDelete )
    {
        if( BOARD_ITEM* item = board->GetItem( pair.first ) )
        {
            validatedItems.push_back( item );
            aItemsToDelete[pair.first] = ItemDeletionStatus::IDS_OK;
        }
 
        // Note: we don't currently support locking items from API modification, but here is where
        // to add it in the future (and return IDS_IMMUTABLE)
    }
 
    COMMIT* commit = getCurrentCommit( aCtx );
 
    for( BOARD_ITEM* item : validatedItems )
        commit->Remove( item );
 
    if( !m_activeClients.count( aCtx.ClientName ) )
        pushCurrentCommit( aCtx, _( "Deleted items via API" ) );
}
 
 
std::optional<EDA_ITEM*> API_HANDLER_PCB::getItemFromDocument( const DocumentSpecifier& aDocument,
                                                               const KIID& aId )
{
    if( !validateDocument( aDocument ) )
        return std::nullopt;
 
    return getItemById( aId );
}
 
 
HANDLER_RESULT<BoardStackupResponse> API_HANDLER_PCB::handleGetStackup( GetBoardStackup& aMsg,
        const HANDLER_CONTEXT& aCtx )
{
    if( std::optional<ApiResponseStatus> busy = checkForBusy() )
        return tl::unexpected( *busy );
 
    HANDLER_RESULT<bool> documentValidation = validateDocument( aMsg.board() );
 
    if( !documentValidation )
        return tl::unexpected( documentValidation.error() );
 
    BoardStackupResponse  response;
    google::protobuf::Any any;
 
    frame()->GetBoard()->GetStackupOrDefault().Serialize( any );
 
    any.UnpackTo( response.mutable_stackup() );
 
    return response;
}
 
 
HANDLER_RESULT<GraphicsDefaultsResponse> API_HANDLER_PCB::handleGetGraphicsDefaults(
        GetGraphicsDefaults& aMsg,
        const HANDLER_CONTEXT& aCtx )
{
    if( std::optional<ApiResponseStatus> busy = checkForBusy() )
        return tl::unexpected( *busy );
 
    HANDLER_RESULT<bool> documentValidation = validateDocument( aMsg.board() );
 
    if( !documentValidation )
        return tl::unexpected( documentValidation.error() );
 
    const BOARD_DESIGN_SETTINGS& bds = frame()->GetBoard()->GetDesignSettings();
    GraphicsDefaultsResponse response;
 
    // TODO: This should change to be an enum class
    constexpr std::array<kiapi::board::BoardLayerClass, LAYER_CLASS_COUNT> classOrder = {
        kiapi::board::BLC_SILKSCREEN,
        kiapi::board::BLC_COPPER,
        kiapi::board::BLC_EDGES,
        kiapi::board::BLC_COURTYARD,
        kiapi::board::BLC_FABRICATION,
        kiapi::board::BLC_OTHER
    };
 
    for( int i = 0; i < LAYER_CLASS_COUNT; ++i )
    {
        kiapi::board::BoardLayerGraphicsDefaults* l = response.mutable_defaults()->add_layers();
 
        l->set_layer( classOrder[i] );
        l->mutable_line_thickness()->set_value_nm( bds.m_LineThickness[i] );
 
        kiapi::common::types::TextAttributes* text = l->mutable_text();
        text->mutable_size()->set_x_nm( bds.m_TextSize[i].x );
        text->mutable_size()->set_y_nm( bds.m_TextSize[i].y );
        text->mutable_stroke_width()->set_value_nm( bds.m_TextThickness[i] );
        text->set_italic( bds.m_TextItalic[i] );
        text->set_keep_upright( bds.m_TextUpright[i] );
    }
 
    return response;
}
 
 
HANDLER_RESULT<GetBoundingBoxResponse> API_HANDLER_PCB::handleGetBoundingBox( GetBoundingBox& aMsg,
        const HANDLER_CONTEXT& aCtx )
{
    if( std::optional<ApiResponseStatus> busy = checkForBusy() )
        return tl::unexpected( *busy );
 
    if( !validateItemHeaderDocument( aMsg.header() ) )
    {
        ApiResponseStatus e;
        // No message needed for AS_UNHANDLED; this is an internal flag for the API server
        e.set_status( ApiStatusCode::AS_UNHANDLED );
        return tl::unexpected( e );
    }
 
    GetBoundingBoxResponse response;
    bool includeText = aMsg.mode() == BoundingBoxMode::BBM_ITEM_AND_CHILD_TEXT;
 
    for( const types::KIID& idMsg : aMsg.items() )
    {
        KIID id( idMsg.value() );
        std::optional<BOARD_ITEM*> optItem = getItemById( id );
 
        if( !optItem )
            continue;
 
        BOARD_ITEM* item = *optItem;
        BOX2I bbox;
 
        if( item->Type() == PCB_FOOTPRINT_T )
            bbox = static_cast<FOOTPRINT*>( item )->GetBoundingBox( includeText );
        else
            bbox = item->GetBoundingBox();
 
        response.add_items()->set_value( idMsg.value() );
        PackBox2( *response.add_boxes(), bbox );
    }
 
    return response;
}
 
 
HANDLER_RESULT<PadShapeAsPolygonResponse> API_HANDLER_PCB::handleGetPadShapeAsPolygon(
        GetPadShapeAsPolygon& aMsg,
        const HANDLER_CONTEXT& aCtx )
{
    HANDLER_RESULT<bool> documentValidation = validateDocument( aMsg.board() );
 
    if( !documentValidation )
        return tl::unexpected( documentValidation.error() );
 
    SHAPE_POLY_SET poly;
    PadShapeAsPolygonResponse response;
    PCB_LAYER_ID layer = FromProtoEnum<PCB_LAYER_ID, board::types::BoardLayer>( aMsg.layer() );
 
    for( const types::KIID& padRequest : aMsg.pads() )
    {
        KIID id( padRequest.value() );
        std::optional<BOARD_ITEM*> optPad = getItemById( id );
 
        if( !optPad || ( *optPad )->Type() != PCB_PAD_T )
            continue;
 
        response.add_pads()->set_value( padRequest.value() );
 
        PAD* pad = static_cast<PAD*>( *optPad );
        pad->TransformShapeToPolygon( poly, pad->Padstack().EffectiveLayerFor( layer ), 0,
                                      ARC_HIGH_DEF, ERROR_INSIDE );
 
        types::PolygonWithHoles* polyMsg = response.mutable_polygons()->Add();
        PackPolyLine( *polyMsg->mutable_outline(), poly.COutline( 0 ) );
    }
 
    return response;
}
 
 
HANDLER_RESULT<types::TitleBlockInfo> API_HANDLER_PCB::handleGetTitleBlockInfo(
        GetTitleBlockInfo& aMsg,
        const HANDLER_CONTEXT& aCtx )
{
    HANDLER_RESULT<bool> documentValidation = validateDocument( aMsg.document() );
 
    if( !documentValidation )
        return tl::unexpected( documentValidation.error() );
 
    BOARD* board = frame()->GetBoard();
    const TITLE_BLOCK& block = board->GetTitleBlock();
 
    types::TitleBlockInfo response;
 
    response.set_title( block.GetTitle().ToUTF8() );
    response.set_date( block.GetDate().ToUTF8() );
    response.set_revision( block.GetRevision().ToUTF8() );
    response.set_company( block.GetCompany().ToUTF8() );
    response.set_comment1( block.GetComment( 0 ).ToUTF8() );
    response.set_comment2( block.GetComment( 1 ).ToUTF8() );
    response.set_comment3( block.GetComment( 2 ).ToUTF8() );
    response.set_comment4( block.GetComment( 3 ).ToUTF8() );
    response.set_comment5( block.GetComment( 4 ).ToUTF8() );
    response.set_comment6( block.GetComment( 5 ).ToUTF8() );
    response.set_comment7( block.GetComment( 6 ).ToUTF8() );
    response.set_comment8( block.GetComment( 7 ).ToUTF8() );
    response.set_comment9( block.GetComment( 8 ).ToUTF8() );
 
    return response;
}
 
 
HANDLER_RESULT<ExpandTextVariablesResponse> API_HANDLER_PCB::handleExpandTextVariables(
    ExpandTextVariables& aMsg, const HANDLER_CONTEXT& aCtx )
{
    HANDLER_RESULT<bool> documentValidation = validateDocument( aMsg.document() );
 
    if( !documentValidation )
        return tl::unexpected( documentValidation.error() );
 
    ExpandTextVariablesResponse reply;
    BOARD* board = frame()->GetBoard();
 
    std::function<bool( wxString* )> textResolver =
            [&]( wxString* token ) -> bool
            {
                // Handles m_board->GetTitleBlock() *and* m_board->GetProject()
                return board->ResolveTextVar( token, 0 );
            };
 
    for( const std::string& textMsg : aMsg.text() )
    {
        wxString text = ExpandTextVars( wxString::FromUTF8( textMsg ), &textResolver );
        reply.add_text( text.ToUTF8() );
    }
 
    return reply;
}
 
 
HANDLER_RESULT<Empty> API_HANDLER_PCB::handleInteractiveMoveItems( InteractiveMoveItems& aMsg,
                                                                   const HANDLER_CONTEXT& aCtx )
{
    if( std::optional<ApiResponseStatus> busy = checkForBusy() )
        return tl::unexpected( *busy );
 
    HANDLER_RESULT<bool> documentValidation = validateDocument( aMsg.board() );
 
    if( !documentValidation )
        return tl::unexpected( documentValidation.error() );
 
    TOOL_MANAGER* mgr = frame()->GetToolManager();
    std::vector<EDA_ITEM*> toSelect;
 
    for( const kiapi::common::types::KIID& id : aMsg.items() )
    {
        if( std::optional<BOARD_ITEM*> item = getItemById( KIID( id.value() ) ) )
            toSelect.emplace_back( static_cast<EDA_ITEM*>( *item ) );
    }
 
    if( toSelect.empty() )
    {
        ApiResponseStatus e;
        e.set_status( ApiStatusCode::AS_BAD_REQUEST );
        e.set_error_message( fmt::format( "None of the given items exist on the board",
                                          aMsg.board().board_filename() ) );
        return tl::unexpected( e );
    }
 
    PCB_SELECTION_TOOL* selectionTool = mgr->GetTool<PCB_SELECTION_TOOL>();
    selectionTool->GetSelection().SetReferencePoint( toSelect[0]->GetPosition() );
 
    mgr->RunAction( PCB_ACTIONS::selectionClear );
    mgr->RunAction<EDA_ITEMS*>( PCB_ACTIONS::selectItems, &toSelect );
 
    COMMIT* commit = getCurrentCommit( aCtx );
    mgr->PostAction( PCB_ACTIONS::move, commit );
 
    return Empty();
}
 
 
HANDLER_RESULT<NetsResponse> API_HANDLER_PCB::handleGetNets( GetNets& aMsg,
        const HANDLER_CONTEXT& aCtx )
{
    if( std::optional<ApiResponseStatus> busy = checkForBusy() )
        return tl::unexpected( *busy );
 
    HANDLER_RESULT<bool> documentValidation = validateDocument( aMsg.board() );
 
    if( !documentValidation )
        return tl::unexpected( documentValidation.error() );
 
    NetsResponse response;
    BOARD* board = frame()->GetBoard();
 
    std::set<wxString> netclassFilter;
 
    for( const std::string& nc : aMsg.netclass_filter() )
        netclassFilter.insert( wxString( nc.c_str(), wxConvUTF8 ) );
 
    for( NETINFO_ITEM* net : board->GetNetInfo() )
    {
        NETCLASS* nc = net->GetNetClass();
 
        if( !netclassFilter.empty() && nc && !netclassFilter.count( nc->GetName() ) )
            continue;
 
        board::types::Net* netProto = response.add_nets();
        netProto->set_name( net->GetNetname() );
        netProto->mutable_code()->set_value( net->GetNetCode() );
    }
 
    return response;
}
 
 
HANDLER_RESULT<Empty> API_HANDLER_PCB::handleRefillZones( RefillZones& aMsg,
                                                          const HANDLER_CONTEXT& aCtx )
{
    if( std::optional<ApiResponseStatus> busy = checkForBusy() )
        return tl::unexpected( *busy );
 
    HANDLER_RESULT<bool> documentValidation = validateDocument( aMsg.board() );
 
    if( !documentValidation )
        return tl::unexpected( documentValidation.error() );
 
    if( aMsg.zones().empty() )
    {
        TOOL_MANAGER* mgr = frame()->GetToolManager();
        frame()->CallAfter( [mgr]()
                            {
                                mgr->RunAction( PCB_ACTIONS::zoneFillAll );
                            } );
    }
    else
    {
        // TODO
        ApiResponseStatus e;
        e.set_status( ApiStatusCode::AS_UNIMPLEMENTED );
        return tl::unexpected( e );
    }
 
    return Empty();
}
 
 
HANDLER_RESULT<SavedDocumentResponse> API_HANDLER_PCB::handleSaveDocumentToString(
        SaveDocumentToString& aMsg, const HANDLER_CONTEXT& aCtx )
{
    HANDLER_RESULT<bool> documentValidation = validateDocument( aMsg.document() );
 
    if( !documentValidation )
        return tl::unexpected( documentValidation.error() );
 
    SavedDocumentResponse response;
    response.mutable_document()->CopyFrom( aMsg.document() );
 
    CLIPBOARD_IO io;
    io.SetWriter(
        [&]( const wxString& aData )
        {
            response.set_contents( aData.ToUTF8() );
        } );
 
    io.SaveBoard( wxEmptyString, frame()->GetBoard(), nullptr );
 
    return response;
}
 
 
HANDLER_RESULT<SavedSelectionResponse> API_HANDLER_PCB::handleSaveSelectionToString(
        SaveSelectionToString& aMsg, const HANDLER_CONTEXT& aCtx )
{
    SavedSelectionResponse response;
 
    TOOL_MANAGER* mgr = frame()->GetToolManager();
    PCB_SELECTION_TOOL* selectionTool = mgr->GetTool<PCB_SELECTION_TOOL>();
    PCB_SELECTION& selection = selectionTool->GetSelection();
 
    CLIPBOARD_IO io;
    io.SetWriter(
        [&]( const wxString& aData )
        {
            response.set_contents( aData.ToUTF8() );
        } );
 
    io.SetBoard( frame()->GetBoard() );
    io.SaveSelection( selection, false );
 
    return response;
}
 
 
HANDLER_RESULT<CreateItemsResponse> API_HANDLER_PCB::handleParseAndCreateItemsFromString(
        ParseAndCreateItemsFromString& aMsg, const HANDLER_CONTEXT& aCtx )
{
    if( std::optional<ApiResponseStatus> busy = checkForBusy() )
        return tl::unexpected( *busy );
 
    HANDLER_RESULT<bool> documentValidation = validateDocument( aMsg.document() );
 
    if( !documentValidation )
        return tl::unexpected( documentValidation.error() );
 
    CreateItemsResponse response;
    return response;
}
 
 
HANDLER_RESULT<BoardLayers> API_HANDLER_PCB::handleGetVisibleLayers( GetVisibleLayers&      aMsg,
                                                                     const HANDLER_CONTEXT& aCtx )
{
    HANDLER_RESULT<bool> documentValidation = validateDocument( aMsg.board() );
 
    if( !documentValidation )
        return tl::unexpected( documentValidation.error() );
 
    BoardLayers response;
 
    for( PCB_LAYER_ID layer : frame()->GetBoard()->GetVisibleLayers() )
        response.add_layers( ToProtoEnum<PCB_LAYER_ID, board::types::BoardLayer>( layer ) );
 
    return response;
}
 
 
HANDLER_RESULT<Empty> API_HANDLER_PCB::handleSetVisibleLayers( SetVisibleLayers&      aMsg,
                                                               const HANDLER_CONTEXT& aCtx )
{
    if( std::optional<ApiResponseStatus> busy = checkForBusy() )
        return tl::unexpected( *busy );
 
    HANDLER_RESULT<bool> documentValidation = validateDocument( aMsg.board() );
 
    if( !documentValidation )
        return tl::unexpected( documentValidation.error() );
 
    LSET visible;
    LSET enabled = frame()->GetBoard()->GetEnabledLayers();
 
    for( int layerIdx : aMsg.layers() )
    {
        PCB_LAYER_ID layer =
                FromProtoEnum<PCB_LAYER_ID>( static_cast<board::types::BoardLayer>( layerIdx ) );
 
        if( enabled.Contains( layer ) )
            visible.set( layer );
    }
 
    frame()->GetBoard()->SetVisibleLayers( visible );
    frame()->GetAppearancePanel()->OnBoardChanged();
    frame()->GetCanvas()->SyncLayersVisibility( frame()->GetBoard() );
    frame()->Refresh();
    return Empty();
}
 
 
HANDLER_RESULT<BoardLayerResponse> API_HANDLER_PCB::handleGetActiveLayer(
            GetActiveLayer& aMsg, const HANDLER_CONTEXT& aCtx )
{
    HANDLER_RESULT<bool> documentValidation = validateDocument( aMsg.board() );
 
    if( !documentValidation )
        return tl::unexpected( documentValidation.error() );
 
    BoardLayerResponse response;
    response.set_layer(
            ToProtoEnum<PCB_LAYER_ID, board::types::BoardLayer>( frame()->GetActiveLayer() ) );
 
    return response;
}
 
 
HANDLER_RESULT<Empty> API_HANDLER_PCB::handleSetActiveLayer( SetActiveLayer&        aMsg,
                                                             const HANDLER_CONTEXT& aCtx )
{
    if( std::optional<ApiResponseStatus> busy = checkForBusy() )
        return tl::unexpected( *busy );
 
    HANDLER_RESULT<bool> documentValidation = validateDocument( aMsg.board() );
 
    if( !documentValidation )
        return tl::unexpected( documentValidation.error() );
 
    PCB_LAYER_ID layer = FromProtoEnum<PCB_LAYER_ID>( aMsg.layer() );
 
    if( !frame()->GetBoard()->GetEnabledLayers().Contains( layer ) )
    {
        ApiResponseStatus err;
        err.set_status( ApiStatusCode::AS_BAD_REQUEST );
        err.set_error_message( fmt::format( "Layer {} is not a valid layer for the given board",
                                            magic_enum::enum_name( layer ) ) );
        return tl::unexpected( err );
    }
 
    frame()->SetActiveLayer( layer );
    return Empty();
}