/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2013 CERN
 * @author Tomasz Wlostowski <tomasz.wlostowski@cern.ch>
 *
 * 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 <cstring>
#include <string>

#include <tool/tool_event.h>
#include <tool/tool_action.h>
#include <tool/tool_manager.h>
#include <tool/actions.h>

struct FlagString
{
    int flag;
    std::string str;
};


static const std::string flag2string( int aFlag, const FlagString* aExps )
{
    std::string rv;

    for( int i = 0; aExps[i].str.length(); i++ )
    {
        if( aExps[i].flag & aFlag )
            rv += aExps[i].str + " ";
    }

    return rv;
}


void TOOL_EVENT::init()
{
    // By default only MESSAGEs and Cancels are passed to multiple recipients
    m_passEvent = m_category == TC_MESSAGE || TOOL_EVT_UTILS::IsCancelInteractive( *this );

    m_hasPosition = ( m_category == TC_MOUSE || m_category == TC_COMMAND );
}


bool TOOL_EVENT::IsAction( const TOOL_ACTION* aAction ) const
{
    return Matches( aAction->MakeEvent() );
}


const std::string TOOL_EVENT::Format() const
{
    std::string ev;

    const FlagString categories[] =
    {
        { TC_MOUSE,    "mouse"    },
        { TC_KEYBOARD, "keyboard" },
        { TC_COMMAND,  "command"  },
        { TC_MESSAGE,  "message"  },
        { TC_VIEW,     "view"     },
        { 0,           ""         }
    };

    const FlagString actions[] =
    {
        { TA_MOUSE_CLICK,        "click"               },
        { TA_MOUSE_DBLCLICK,     "double click"        },
        { TA_MOUSE_UP,           "button-up"           },
        { TA_MOUSE_DOWN,         "button-down"         },
        { TA_MOUSE_DRAG,         "drag"                },
        { TA_MOUSE_MOTION,       "motion"              },
        { TA_MOUSE_WHEEL,        "wheel"               },
        { TA_KEY_PRESSED,        "key-pressed"         },
        { TA_VIEW_REFRESH,       "view-refresh"        },
        { TA_VIEW_ZOOM,          "view-zoom"           },
        { TA_VIEW_PAN,           "view-pan"            },
        { TA_VIEW_DIRTY,         "view-dirty"          },
        { TA_CHANGE_LAYER,       "change-layer"        },
        { TA_CANCEL_TOOL,        "cancel-tool"         },
        { TA_CHOICE_MENU_UPDATE, "choice-menu-update"  },
        { TA_CHOICE_MENU_CHOICE, "choice-menu-choice"  },
        { TA_UNDO_REDO_PRE,      "undo-redo-pre"       },
        { TA_UNDO_REDO_POST,     "undo-redo-post"      },
        { TA_ACTION,             "action"              },
        { TA_ACTIVATE,           "activate"            },
        { 0,                     ""                    }
    };

    const FlagString buttons[] =
    {
        { BUT_NONE,   "none"   },
        { BUT_LEFT,   "left"   },
        { BUT_RIGHT,  "right"  },
        { BUT_MIDDLE, "middle" },
        { 0,          ""       }
    };

    const FlagString modifiers[] =
    {
        { MD_SHIFT, "shift" },
        { MD_CTRL,  "ctrl"  },
        { MD_ALT,   "alt"   },
        { 0,        ""      }
    };

    ev = "category: ";
    ev += flag2string( m_category, categories );
    ev += " action: ";
    ev += flag2string( m_actions, actions );

    if( m_actions & TA_MOUSE )
    {
        ev += " btns: ";
        ev += flag2string( m_mouseButtons, buttons );
    }

    if( m_actions & TA_KEYBOARD )
    {
        char tmp[128];
        sprintf( tmp, "key: %d", m_keyCode );
        ev += tmp;
    }

    if( m_actions & ( TA_MOUSE | TA_KEYBOARD ) )
    {
        ev += " mods: ";
        ev += flag2string( m_modifiers, modifiers );
    }

    if( m_commandId )
    {
        char tmp[128];
        sprintf( tmp, "cmd-id: %d", *m_commandId );
        ev += tmp;
    }

    if( m_commandStr )
        ev += "cmd-str: " + ( *m_commandStr );

    return ev;
}


const std::string TOOL_EVENT_LIST::Format() const
{
    std::string s;

    for( const TOOL_EVENT& e : m_events )
        s += e.Format() + " ";

    return s;
}


bool TOOL_EVENT::IsClick( int aButtonMask ) const
{
    return m_actions == TA_MOUSE_CLICK && ( m_mouseButtons & aButtonMask ) == aButtonMask;
}


bool TOOL_EVENT::IsDblClick( int aButtonMask ) const
{
    return m_actions == TA_MOUSE_DBLCLICK && ( m_mouseButtons & aButtonMask ) == aButtonMask;
}


bool TOOL_EVT_UTILS::IsCancelInteractive( const TOOL_EVENT& aEvt )
{
    if( aEvt.GetCommandStr() && aEvt.GetCommandStr().get() == ACTIONS::cancelInteractive.GetName() )
        return true;

    if( aEvt.GetCommandId() && aEvt.GetCommandId().get() == ACTIONS::cancelInteractive.GetId() )
        return true;

    return aEvt.IsCancel();
}


bool TOOL_EVT_UTILS::IsSelectionEvent( const TOOL_EVENT& aEvt )
{
    return aEvt.Matches( EVENTS::ClearedEvent )
           || aEvt.Matches( EVENTS::UnselectedEvent )
           || aEvt.Matches( EVENTS::SelectedEvent );
}


bool TOOL_EVT_UTILS::IsPointEditor( const TOOL_EVENT& aEvt )
{
    if( aEvt.GetCommandStr() && aEvt.GetCommandStr().get().find( "PointEditor" ) >= 0 )
        return true;

    if( aEvt.GetCommandId() && aEvt.GetCommandId() == ACTIONS::activatePointEditor.GetId() )
        return true;

    return false;
}