/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2015 Jean-Pierre Charras, jp.charras at wanadoo.fr
 * Copyright (C) 2015-2018 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
 */

/**
 * @file viewlibs.cpp
 */

#include <fctsys.h>
#include <kiway.h>
#include <pgm_base.h>
#include <class_drawpanel.h>
#include <confirm.h>
#include <eda_doc.h>

#include <viewlib_frame.h>
#include <eeschema_id.h>
#include <class_library.h>
#include <dialog_helpers.h>
#include <dialog_choose_component.h>
#include <symbol_tree_model_adapter.h>
#include <symbol_lib_table.h>

void LIB_VIEW_FRAME::OnSelectSymbol( wxCommandEvent& aEvent )
{
    std::unique_lock<std::mutex> dialogLock( DIALOG_CHOOSE_COMPONENT::g_Mutex, std::defer_lock );
    wxString                     dialogTitle;
    SYMBOL_LIB_TABLE*            libs = Prj().SchSymbolLibTable();

    // One CHOOSE_COMPONENT dialog at a time.  User probaby can't handle more anyway.
    if( !dialogLock.try_lock() )
        return;

    // Container doing search-as-you-type.
    auto adapterPtr( SYMBOL_TREE_MODEL_ADAPTER::Create( libs ) );
    auto adapter = static_cast<SYMBOL_TREE_MODEL_ADAPTER*>( adapterPtr.get() );

    const auto libNicknames = libs->GetLogicalLibs();

    adapter->AddLibraries( libNicknames, this );

    dialogTitle.Printf( _( "Choose Symbol (%d items loaded)" ), adapter->GetItemCount() );
    DIALOG_CHOOSE_COMPONENT dlg( this, dialogTitle, adapterPtr, m_convert, false, false, false );

    if( dlg.ShowQuasiModal() == wxID_CANCEL )
        return;

    /// @todo: The unit selection gets reset to 1 by SetSelectedComponent() so the unit
    ///        selection feature of the choose symbol dialog doesn't work.
    LIB_ID id = dlg.GetSelectedLibId( &m_unit );

    if( !id.IsValid() || id.GetLibNickname().empty() )
        return;

    if( m_libraryName == id.GetLibNickname() )
    {
        if( m_entryName != id.GetLibItemName() )
            SetSelectedComponent( id.GetLibItemName() );
    }
    else
    {
        m_entryName = id.GetLibItemName();
        SetSelectedLibrary( id.GetLibNickname() );
        SetSelectedComponent( id.GetLibItemName() );
    }

    Zoom_Automatique( false );
}


void LIB_VIEW_FRAME::onSelectNextSymbol( wxCommandEvent& aEvent )
{
    wxCommandEvent evt( wxEVT_COMMAND_LISTBOX_SELECTED, ID_LIBVIEW_CMP_LIST );
    int ii = m_cmpList->GetSelection();

    // Select the next symbol or stop at the end of the list.
    if( ii != wxNOT_FOUND || ii != (int)m_cmpList->GetCount() - 1 )
        ii += 1;

    m_cmpList->SetSelection( ii );
    ProcessEvent( evt );
}


void LIB_VIEW_FRAME::onSelectPreviousSymbol( wxCommandEvent& aEvent )
{
    wxCommandEvent evt( wxEVT_COMMAND_LISTBOX_SELECTED, ID_LIBVIEW_CMP_LIST );
    int ii = m_cmpList->GetSelection();

    // Select the previous symbol or stop at the beginning of list.
    if( ii != wxNOT_FOUND && ii != 0 )
        ii -= 1;

    m_cmpList->SetSelection( ii );
    ProcessEvent( evt );
}


void LIB_VIEW_FRAME::onViewSymbolDocument( wxCommandEvent& aEvent )
{
    LIB_ID id( m_libraryName, m_entryName );
    LIB_ALIAS* entry = Prj().SchSymbolLibTable()->LoadSymbol( id );

    if( entry && !entry->GetDocFileName().IsEmpty() )
    {
        SEARCH_STACK* lib_search = Prj().SchSearchS();

        GetAssociatedDocument( this, entry->GetDocFileName(), lib_search );
    }
}


void LIB_VIEW_FRAME::onSelectSymbolBodyStyle( wxCommandEvent& aEvent )
{
    int id = aEvent.GetId();

    switch( id )
    {
    default:
    case ID_LIBVIEW_DE_MORGAN_NORMAL_BUTT:
        m_convert = 1;
        break;

    case ID_LIBVIEW_DE_MORGAN_CONVERT_BUTT:
        m_convert = 2;
        break;
    }

    m_canvas->Refresh();
}


void LIB_VIEW_FRAME::onSelectSymbolUnit( wxCommandEvent& aEvent )
{
    int ii = m_selpartBox->GetCurrentSelection();

    if( ii < 0 )
        return;

    m_unit = ii + 1;
    m_canvas->Refresh();
}


void LIB_VIEW_FRAME::OnLeftClick( wxDC* DC, const wxPoint& MousePos )
{
}


bool LIB_VIEW_FRAME::OnRightClick( const wxPoint& MousePos, wxMenu* PopMenu )
{
    return true;
}


void LIB_VIEW_FRAME::DisplayLibInfos()
{
    if( m_libList && !m_libList->IsEmpty() && !m_libraryName.IsEmpty() )
    {
        const SYMBOL_LIB_TABLE_ROW* row = Prj().SchSymbolLibTable()->FindRow( m_libraryName );

        wxString title = wxString::Format( _( "Symbol Library Browser -- %s" ),
                                           row ? row->GetFullURI() : _( "no library selected" ) );
        SetTitle( title );
    }
}


void LIB_VIEW_FRAME::RedrawActiveWindow( wxDC* DC, bool EraseBg )
{
    LIB_ID id( m_libraryName, m_entryName );
    LIB_ALIAS* entry = nullptr;

    try
    {
        entry = Prj().SchSymbolLibTable()->LoadSymbol( id );
    }
    catch( const IO_ERROR& ) {} // ignore, it is handled below

    if( !entry )
        return;

    LIB_PART* part = entry->GetPart();

    if( !part )
        return;

    wxString    msg;
    wxString    tmp;

    m_canvas->DrawBackGround( DC );

    if( !entry->IsRoot() )
    {
        // Temporarily change the name field text to reflect the alias name.
        msg = entry->GetName();
        tmp = part->GetName();

        part->SetName( msg );

        if( m_unit < 1 )
            m_unit = 1;

        if( m_convert < 1 )
            m_convert = 1;
    }
    else
        msg = _( "None" );

    auto opts = PART_DRAW_OPTIONS::Default();
    opts.show_elec_type = GetShowElectricalType();
    part->Draw( m_canvas, DC, wxPoint( 0, 0 ), m_unit, m_convert, opts );

    // Redraw the cursor
    m_canvas->DrawCrossHair( DC );

    if( !tmp.IsEmpty() )
        part->SetName( tmp );

    ClearMsgPanel();
    AppendMsgPanel( _( "Name" ), part->GetName(), BLUE, 6 );
    AppendMsgPanel( _( "Alias" ), msg, RED, 6 );
    AppendMsgPanel( _( "Description" ), entry->GetDescription(), CYAN, 6 );
    AppendMsgPanel( _( "Key words" ), entry->GetKeyWords(), DARKDARKGRAY );
}