/*********************/
/* hotkeys_basic.cpp */
/*********************/

/* Some functions to handle hotkeys in kicad
 */
#include "fctsys.h"
#include "common.h"
#include "wxstruct.h"
#include "hotkeys_basic.h"
#include "macros.h"

/* Class to handle hotkey commnands. hotkeys have a default value
 *  This class allows (for the future..) the real key code changed by user(from a key code list file, TODO)
 */

Ki_HotkeyInfo::Ki_HotkeyInfo( const wxChar* infomsg, int idcommand, int keycode )
{
    m_KeyCode   = keycode;      // Key code (ascii value for ascii keys or wxWidgets code for function key
    m_InfoMsg   = infomsg;      // info message.
    m_Idcommand = idcommand;    // internal id for the corresponding command (see hotkey_id_commnand list)
}


/* class to handle the printable name and the keycode
 */
struct hotkey_name_descr
{
    wxChar* m_Name;
    int     m_KeyCode;
};

struct hotkey_name_descr s_Hotkey_Name_List[] =
{
    { wxT( "F1" ),        WXK_F1           },
    { wxT( "F2" ),        WXK_F2           },
    { wxT( "F3" ),        WXK_F3           },
    { wxT( "F4" ),        WXK_F4           },
    { wxT( "F5" ),        WXK_F5           },
    { wxT( "F6" ),        WXK_F6           },
    { wxT( "F7" ),        WXK_F7           },
    { wxT( "F8" ),        WXK_F8           },
    { wxT( "F9" ),        WXK_F9           },
    { wxT( "F10" ),       WXK_F10          },
    { wxT( "F11" ),       WXK_F11          },
    { wxT( "F12" ),       WXK_F12          },

    { wxT( "Esc" ),       WXK_ESCAPE       },
    { wxT( "Delete" ),    WXK_DELETE       },
    { wxT( "Esc" ),       WXK_ESCAPE       },
    { wxT( "Tab" ),       '\t'             },
    { wxT( "Backspace" ), WXK_BACK         },
    { wxT( "Insert" ),    WXK_INSERT       },

    { wxT( "End" ),       WXK_END          },
    { wxT( "Page Up" ),   WXK_PAGEUP       },
    { wxT( "Page Down" ), WXK_PAGEDOWN     },
    { wxT( "+" ),         WXK_ADD          },
    { wxT( "-" ),         WXK_SUBTRACT     },

    { wxT( "Up" ),        WXK_UP           },
    { wxT( "Down" ),      WXK_DOWN         },
    { wxT( "Left" ),      WXK_LEFT         },
    { wxT( "Right" ),     WXK_RIGHT        },

    { wxT( "space" ),     ' '              },
    { wxT( "?" ),         '?'              },
    { wxT( "!" ),         '!'              },
    { wxT( ":" ),         ':'              },
    { wxT( "," ),         ','              },
    { wxT( "*" ),         '*'              },
    { wxT( "+" ),         '+'              },
    { wxT( "-" ),         '-'              },
    { wxT( "\%" ),         '%'              },
    { wxT( "A" ),         'A'              },
    { wxT( "B" ),         'B'              },
    { wxT( "C" ),         'C'              },
    { wxT( "D" ),         'D'              },
    { wxT( "E" ),         'E'              },
    { wxT( "F" ),         'F'              },
    { wxT( "G" ),         'G'              },
    { wxT( "H" ),         'H'              },
    { wxT( "I" ),         'I'              },
    { wxT( "J" ),         'J'              },
    { wxT( "K" ),         'K'              },
    { wxT( "L" ),         'L'              },
    { wxT( "M" ),         'M'              },
    { wxT( "N" ),         'N'              },
    { wxT( "O" ),         'O'              },
    { wxT( "P" ),         'P'              },
    { wxT( "Q" ),         'Q'              },
    { wxT( "R" ),         'R'              },
    { wxT( "S" ),         'S'              },
    { wxT( "T" ),         'T'              },
    { wxT( "U" ),         'U'              },
    { wxT( "V" ),         'V'              },
    { wxT( "W" ),         'W'              },
    { wxT( "X" ),         'X'              },
    { wxT( "Y" ),         'Y'              },
    { wxT( "Z" ),         'Z'              },

    { wxT( "Ctrl A" ),    GR_KB_CTRL + 'A' },
    { wxT( "Ctrl B" ),    GR_KB_CTRL + 'B' },
    { wxT( "Ctrl C" ),    GR_KB_CTRL + 'C' },
    { wxT( "Ctrl D" ),    GR_KB_CTRL + 'D' },
    { wxT( "Ctrl E" ),    GR_KB_CTRL + 'E' },
    { wxT( "Ctrl F" ),    GR_KB_CTRL + 'F' },
    { wxT( "Ctrl G" ),    GR_KB_CTRL + 'G' },
    { wxT( "Ctrl H" ),    GR_KB_CTRL + 'H' },
    { wxT( "Ctrl I" ),    GR_KB_CTRL + 'I' },
    { wxT( "Ctrl J" ),    GR_KB_CTRL + 'J' },
    { wxT( "Ctrl K" ),    GR_KB_CTRL + 'K' },
    { wxT( "Ctrl L" ),    GR_KB_CTRL + 'L' },
    { wxT( "Ctrl M" ),    GR_KB_CTRL + 'M' },
    { wxT( "Ctrl N" ),    GR_KB_CTRL + 'N' },
    { wxT( "Ctrl O" ),    GR_KB_CTRL + 'O' },
    { wxT( "Ctrl P" ),    GR_KB_CTRL + 'P' },
    { wxT( "Ctrl Q" ),    GR_KB_CTRL + 'Q' },
    { wxT( "Ctrl R" ),    GR_KB_CTRL + 'R' },
    { wxT( "Ctrl S" ),    GR_KB_CTRL + 'S' },
    { wxT( "Ctrl T" ),    GR_KB_CTRL + 'T' },
    { wxT( "Ctrl U" ),    GR_KB_CTRL + 'U' },
    { wxT( "Ctrl V" ),    GR_KB_CTRL + 'V' },
    { wxT( "Ctrl W" ),    GR_KB_CTRL + 'W' },
    { wxT( "Ctrl X" ),    GR_KB_CTRL + 'X' },
    { wxT( "Ctrl Y" ),    GR_KB_CTRL + 'Y' },
    { wxT( "Ctrl Z" ),    GR_KB_CTRL + 'Z' },

    { wxT( "" ),          0                } // Do not change: end of list
};


/****************************************************/
wxString ReturnKeyNameFromKeyCode( int keycode )
/****************************************************/

/*
 * return the key name from the key code
 * Only some wxWidgets key values are handled for function key
 * @param key = key code (ascii value, or wxWidgets value for function keys)
 * @return the key name in a wxString
 */
{
    wxString keyname, modifier, fullkeyname;
    int      ii;

    if( (keycode & GR_KB_CTRL) != 0 )
        modifier << wxT( "Ctrl " );
    if( (keycode & GR_KB_ALT) != 0 )
        modifier << wxT( "Alt " );
    if( (keycode & GR_KB_SHIFT) != 0 )
        modifier << wxT( "Shift " );

    keycode &= ~(GR_KB_CTRL | GR_KB_ALT | GR_KB_SHIFT);
    for( ii = 0; ; ii++ )
    {
        if( s_Hotkey_Name_List[ii].m_KeyCode == 0 )
        {
            keyname = wxT( "<unknown>" );
            break;
        }
        if( s_Hotkey_Name_List[ii].m_KeyCode == keycode )
        {
            keyname = s_Hotkey_Name_List[ii].m_Name;
            break;
        }
    }

    fullkeyname = modifier + keyname;
    return fullkeyname;
}


/**********************************************************************************/
wxString AddHotkeyName( const wxString& text, Ki_HotkeyInfo** List, int CommandId )
/**********************************************************************************/

/*
 * Add the key name from the Command id value ( m_Idcommand member value)
 * @param List = pointer to a Ki_HotkeyInfo list of commands
 * @param CommandId = Command Id value
 * @return text (key name) in a wxString if found or text without modification
 */
{
    wxString msg     = text;
    wxString keyname = ReturnKeyNameFromCommandId( List, CommandId );

    if( !keyname.IsEmpty() )
        msg << wxT( " (" ) << keyname << wxT( ")" );
    return msg;
}


/***********************************************************************/
wxString ReturnKeyNameFromCommandId( Ki_HotkeyInfo** List, int CommandId )
/***********************************************************************/

/*
 * return the key name from the Command id value ( m_Idcommand member value)
 * @param List = pointer to a Ki_HotkeyInfo list of commands
 * @param CommandId = Command Id value
 * @return the key name in a wxString
 */
{
    wxString keyname;

    for( ; *List != NULL; List++ )
    {
        Ki_HotkeyInfo* hk_decr = *List;
        if( hk_decr->m_Idcommand == CommandId )
        {
            keyname = ReturnKeyNameFromKeyCode( hk_decr->m_KeyCode );
            break;
        }
    }

    return keyname;
}


/************************************************************/
static int ReturnKeyCodeFromKeyName( const wxString& keyname )
/************************************************************/

/*
 * return the key code from its key name
 * Only some wxWidgets key values are handled for function key
 * @param keyname = wxString key name to find in s_Hotkey_Name_List[]
 * @return the key code
 */
{
    int ii, keycode = 0;

    for( ii = 0; ; ii++ )
    {
        if( s_Hotkey_Name_List[ii].m_KeyCode == 0 )  // End of list reached
            break;
        if( keyname.CmpNoCase( s_Hotkey_Name_List[ii].m_Name ) == 0 )
        {
            keycode = s_Hotkey_Name_List[ii].m_KeyCode;
            break;
        }
    }

    return keycode;
}


/****************************************************************************/
void DisplayHotkeyList( WinEDA_DrawFrame* frame, Ki_HotkeyInfo** List )
/*****************************************************************************/

/*
 * Displays the current hotkey list
 * @param frame = current open frame
 * @param List = pointer to a Ki_HotkeyInfo list of commands
 * @return none
 */
{
    wxString keyname;

    wxString msg = _( "Current hotkey list:\n\n" );

    for( ; *List != NULL; List++ )
    {
        Ki_HotkeyInfo* hk_decr = *List;
        msg    += _( "key " );
        keyname = ReturnKeyNameFromKeyCode( hk_decr->m_KeyCode );
        msg += keyname + wxT( ":    " ) + hk_decr->m_InfoMsg + wxT( "\n" );
    }

    DisplayInfo( frame, msg );
}


/******************************************************************/
int GetCommandCodeFromHotkey( int key, Ki_HotkeyInfo** List )
/******************************************************************/

/*
 * Return an id identifier fron a key code for OnHotKey() function
 * @param key = key code (ascii value, or wxWidgets value for function keys
 * @param List = pointer to a Ki_HotkeyInfo list of commands
 * @return the corresponding function identifier from the Ki_HotkeyInfo  List
 */
{
    for( ; *List != NULL; List++ )
    {
        Ki_HotkeyInfo* hk_decr = *List;
        if( hk_decr->m_KeyCode == key )
            return hk_decr->m_Idcommand;
    }

    return 0;
}


/*************************************************************************/
int WinEDA_BasicFrame::WriteHotkeyConfigFile( const wxString& Filename,
                                              Ki_HotkeyInfo** List, bool verbose )
/*************************************************************************/

/*
 * Create a configuration file (*.key) from the current hotkey list
 * @param Filename = default full file name to create. If void, A filename will be asked
 * @param List = pointer to the current hotkey list.
 * the ouput format is: shortcut  "key"  "function"
 * lines starting by # are comments
 *
 */
{
    wxString FullFilename = Filename;
    FILE*    cfgfile;
    wxString msg;

    if( FullFilename.IsEmpty() || verbose )
    {
        wxString Mask, Path, Ext;
        Ext  = DEFAULT_HOTKEY_FILENAME_EXT;
        Mask = wxT( "*" ) + Ext;
        Path = DEFAULT_HOTKEY_FILENAME_PATH;
        FullFilename = EDA_FileSelector( _( "Hotkey configuration file:" ),
                                         Path,          /* Chemin par defaut */
                                         FullFilename,  /* nom fichier par defaut */
                                         Ext,           /* extension par defaut */
                                         Mask,          /* Masque d'affichage */
                                         this,
                                         wxFD_SAVE,
                                         TRUE
                                         );
    }
    if( FullFilename.IsEmpty() )
        return 0;

    cfgfile = wxFopen( FullFilename, wxT( "wt" ) );

    if( cfgfile == NULL )
    {
        if( verbose )
        {
            msg = _( "Unable to create " ) + FullFilename;
            DisplayError( this, msg );
        }
        return 0;
    }

    wxString keyname, infokey;

    msg = wxT( "$hotkey list\n" );
    fprintf( cfgfile, CONV_TO_UTF8( msg ) );

    /* print the allowed keys, for info
     */
    msg = wxT( "# " ); msg += _( "Allowed keys:\n" );
    fprintf( cfgfile, CONV_TO_UTF8( msg ) );
    msg.Empty();
    for( int ii = 0; ; ii++ )
    {
        if( s_Hotkey_Name_List[ii].m_KeyCode == 0 )
            break;;
        if( msg.IsEmpty() )
            msg = wxT( "# " );
        else
            msg += wxT( ", " );
        msg += s_Hotkey_Name_List[ii].m_Name;
        if( msg.Len() > 60 )
        {
            msg += wxT( "\n" );
            fprintf( cfgfile, CONV_TO_UTF8( msg ) );
            msg.Empty();
        }
    }

    /* print the last line */
    if( !msg.IsEmpty() )
        msg += wxT( "\n" );
    msg += wxT( "#\n#\n" );
    fprintf( cfgfile, CONV_TO_UTF8( msg ) );

    /* Print the current list */
    for( ; *List != NULL; List++ )
    {
        Ki_HotkeyInfo* hk_decr = *List;
        msg     = wxT( "shortcut   " );
        keyname = ReturnKeyNameFromKeyCode( hk_decr->m_KeyCode );
        AddDelimiterString( keyname );
        infokey = hk_decr->m_InfoMsg;
        AddDelimiterString( infokey );
        msg += keyname + wxT( ":    " ) + infokey + wxT( "\n" );
        fprintf( cfgfile, CONV_TO_UTF8( msg ) );
    }

    msg = wxT( "$Endlist\n" );
    fprintf( cfgfile, CONV_TO_UTF8( msg ) );
    fclose( cfgfile );
    return 1;
}


/********************************************************************************************/
int WinEDA_BasicFrame::ReadHotkeyConfigFile( const wxString& Filename,
                                             Ki_HotkeyInfo** CurrentHotkeyList, bool verbose )
/********************************************************************************************/

/*
 * Read a configuration file (<file>.key) and fill the current hotkey list with hotkeys
 * @param Filename = default full file name to create. If void, A filename will be asked
 * @param CurrentHotkeyList = current hotkey list to initialise.
 * the input format is: shortcut  "key"  "function"
 * lines starting by # are ignored (comments)
 *
 */
{
    wxString FullFilename = Filename;
    FILE*    cfgfile;
    wxString msg;

    if( FullFilename.IsEmpty() || verbose )
    {
        wxString Mask, Path, Ext;
        Ext  = DEFAULT_HOTKEY_FILENAME_EXT;
        Mask = wxT( "*" ) + Ext;
        Path = DEFAULT_HOTKEY_FILENAME_PATH;
        FullFilename = EDA_FileSelector( _( "Hotkey configuration file:" ),
                                         Path,          /* Chemin par defaut */
                                         FullFilename,  /* nom fichier par defaut */
                                         Ext,           /* extension par defaut */
                                         Mask,          /* Masque d'affichage */
                                         this,
                                         wxFD_OPEN,
                                         TRUE
                                         );
        if( FullFilename.IsEmpty() )
            return 0;
    }

    cfgfile = wxFopen( FullFilename, wxT( "rt" ) );

    if( cfgfile == NULL )
    {
        if( verbose )
        {
            msg = _( "Unable to read " ) + FullFilename;
            DisplayError( this, msg );
        }
        return 0;
    }

    wxString keyname;
    char     Line[1024];
    int      LineNum = 0;
    /* Read the file */
    while(  GetLine( cfgfile, Line, &LineNum ) != NULL )
    {
        char* line_type, * keyname, * fctname;
        line_type = strtok( Line, " \t\n\r" );
        msg = CONV_FROM_UTF8( line_type );
        if( msg != wxT( "shortcut" ) )
            continue;
        if( msg == wxT( "$Endlist" ) )
            break;

        /* Get the key name */
        strtok( NULL, "\"\n\r" );
        keyname = strtok( NULL, "\"\n\r" );
        strtok( NULL, "\"\n\r" );
        /* Get the command name */
        fctname = strtok( NULL, "\"\n\r" );
        msg = CONV_FROM_UTF8( fctname );
        /* search the hotkey in current hotkey list */
        for( Ki_HotkeyInfo** List = CurrentHotkeyList; *List != NULL; List++ )
        {
            Ki_HotkeyInfo* hk_decr = *List;
            if( hk_decr->m_InfoMsg == msg )
            {
                msg = CONV_FROM_UTF8( keyname );
                int code = ReturnKeyCodeFromKeyName( msg );
                if( code )
                    hk_decr->m_KeyCode = code;
                break;
            }
        }
    }

    fclose( cfgfile );
    return 1;
}