#include <applicat.h>
#include <config.h>
#include <currency.h>
#include <dongle.h>
#include <execp.h>
#include <mask.h>
#include <prefix.h>
#include <relation.h>
#include <utility.h>

#include "ba0100a.h"
#include "ba0101.h"

///////////////////////////////////////////////////////////
// Menu management
///////////////////////////////////////////////////////////

static int get_next_string(const char* s, int from, TString& str, char& brace)
{                 
  if (from < 0)
    return -1;

  char closing = '\0';
  int start = 0;
  
  for (int i = from; s[i]; i++)
  {
    if (s[i] == closing)
    {
      char* fine = (char*)(s + i);
      const char old = *fine;
      *fine = '\0';
      str = s + start;
      *fine = old;
      return i+1;
    }
    
    if (!closing)
    {
      switch(s[i])
      {                        
      case '\'':
      case '"' : closing = s[i]; break;
      case '<' : closing = '>' ; break;
      case '[' : closing = ']' ; break;
      default  : break;
      }
      if (closing)
      {
        start = i+1;
        brace = s[i];
      }
    }
  }
  
  return -1;
}

static int get_next_int(const char* s, int from, int& val)
{
  if (from < 0)
    return -1;

	const char* start = NULL;
	for (int i = from; s[i]; i++)
	{
		if (start == NULL)
		{
			if (isdigit(s[i]))
			  start = s+i;
		}
		else
		{
		  if (s[i] == ',')
				break;
		}
	}
	if (start != NULL)
		val = atoi(start);
	
	return i;
}

///////////////////////////////////////////////////////////
// TTimed_image
///////////////////////////////////////////////////////////

class TTimed_image : public TImage
{              
  clock_t _last_time;

public:
  clock_t touch() { return _last_time = clock(); }
  clock_t last_time() const { return _last_time; }
  
  TTimed_image(const char* name) : TImage(name) { touch(); }
  virtual ~TTimed_image() { }
};

///////////////////////////////////////////////////////////
// Menu Item
///////////////////////////////////////////////////////////

TMenuitem::TMenuitem(TSubmenu* sm) 
         : _submenu(sm), _exist(-1), _firm(FALSE), 
           _password(FALSE), _reloadmenu(FALSE),
           _color(NORMAL_COLOR), _icon(0)
{ }

TMenuitem::TMenuitem(const TMenuitem& mi) 
         : _submenu(mi._submenu), _exist(mi._exist), _firm(mi._firm), 
           _password(mi._password), _reloadmenu(mi._reloadmenu),
           _color(mi._color), _icon(mi._icon), _enabled(mi._enabled),
           _caption(mi._caption), _action(mi._action), _type(mi._type)
{ }


TMenu& TMenuitem::menu() const
{ return _submenu->menu(); }

void TMenuitem::create(const char* t)
{ 
  TString16 flags;            
  char brace;
  int start = 0;

  start = get_next_string(t, start, _caption, brace);
  start = get_next_string(t, start, _action,  _type);
  start = get_next_string(t, start, flags,   brace);
  start = get_next_int(t, start, _icon);
	_caption = dictionary_translate(_caption);
  
  for (int i = flags.len()-1; i >= 0; i--)
  {
    switch(toupper(flags[i]))
    {              
    case 'D': _exist = FALSE; break;
    case 'F': _firm = TRUE; break;
    case 'P': _password = TRUE; break;
    case 'R': _reloadmenu = TRUE; break;
    default : break;
    }
  }
  
  if (_type == '<')
  { 
    if (_action.find('.') < 0)
      _action << ".men";
    TFilename n = _action; n.custom_path();
		if (n.exist())
			menu().read(_action, _action);
		else
			_action.cut(0);
    _type = '[';
  }

  if (_action.empty())
  {
    _exist = FALSE;
    _enabled = FALSE;
  } 

  // Controlla lo stato di aggiornamento
  if (_enabled && is_program())
    _enabled = !menu().is_dangerous(_action);
} 

int TMenuitem::icon() const
{
	return _icon;
}

bool TMenuitem::enabled() const
{
  bool yes = FALSE;
  if (_exist)
  {
    if (is_submenu())
    {
      TSubmenu* mnu = menu().find(_action);
      yes = mnu && mnu->enabled() && mnu->items() > 0;
    }  
    else
    {       
      if (_exist < 0)
      {
        if (menu().is_dangerous(_action))
        {
          yes = FALSE;
        }             
        else
        {
          const int endname = _action.find(' ');
          TFilename name(endname > 0 ? _action.left(endname) : _action);
          const char* ext[] = { "exe", "pif", "com", "bat", NULL };
          for (int e = 0; ext[e]; e++)
          {
            name.ext(ext[e]);
            if (name.exist())
              break;
          }                               
          yes = ext[e] != NULL;
        }
        ((TMenuitem*)this)->_exist = yes;
      }
      if (_exist)
      {
        TExternal_app app(_action);
        yes = app.can_run();
      }
      if (!yes)
        ((TMenuitem*)this)->_enabled = FALSE;
    }
  }
  return yes;
}  
    
bool TMenuitem::perform_submenu() const
{   
  TSubmenu* mnu = menu().find(_action);
  bool ok = mnu != NULL && mnu->enabled();
  if (ok)
    ok = menu().jumpto(mnu);
  return ok;
}

bool TMenuitem::perform_program() const
{    
  bool ok = TRUE;
  
  if (_password) 
  {
    TMask mask("ba0100a");
    mask.disable(F_USER);
    mask.set(F_USER, "SERVIZIO");
    ok = FALSE;
    if (mask.run() == K_ENTER)
    {                    
      const TDate oggi(TODAY);
      TString16 pwd; pwd << dongle().administrator() << (oggi.month() + oggi.day());
      ok = pwd == mask.get(F_PASSWORD);
    }
    if (!ok) error_box("Password di servizio errata!\nAccesso negato.");
  }
          
  if (_firm && main_app().get_firm() == 0)
#ifdef _DEMO_
     ok = menu().set_firm(1);
#else     
     ok = menu().set_firm(0);
#endif
          
  if (ok)
  {  
    TCurrency::force_cache_update();         // Chiude cache valute
    prefix().set(NULL);                      // Chiude prefix
    TExternal_app a(_action);
    a.run(FALSE,3);

    const bool maintenance_app = _action.starts_with("ba1 -0", TRUE) == 0;
    if (maintenance_app)
    { 
      char line1[16],line2[16];

      while  (fexist("conv.his"))
      {
        FILE* fp = fopen("conv.his","r");
        fgets(line1,15,fp);
        fclose(fp);
        // Ora aspetta...
        time_t old_time ;
        time( &old_time) ;
        while (  time( (time_t *) 0 ) <= old_time ) do_events();
        TExternal_app auto_conv("ba1 -0 -C");
        auto_conv.run();
        fp = fopen("conv.his","r");
        if (fp != NULL)
        {
          fgets(line2,15,fp);
          fclose(fp);
        }
        else strcpy(line2,"");
        if (strcmp(line1,line2) == 0)
          if (!yesno_box("La conversione non sembra procedere. Continuare?"))
            break; 
      }
    }
    prefix().set("DEF");                     // Aggiorna prefix
  }  
  
  return ok;
}  

bool TMenuitem::perform() const
{
  bool ok = enabled();
  if (ok)
  {
    if (is_submenu())
      ok = perform_submenu();
    else                
      ok = perform_program();
  }    
  return ok;
}    

///////////////////////////////////////////////////////////
// Submenu
///////////////////////////////////////////////////////////

TSubmenu::TSubmenu(TMenu* menu, const char* name)
        : _menu(menu), _name(name), _enabled(TRUE), _firm(FALSE), _items(12)
{
}

void TSubmenu::read(TScanner& scanner)
{
  while (scanner.ok())
  {
    TString& line = scanner.line();
    if (line.empty())
      break;
    if (line[0] == '[')  
    {
      scanner.push();
      break;
    }
    
    char brace;
    if (line.compare("Caption", 7, TRUE) == 0)
		{
      get_next_string(line, 8, _caption, brace); 
			_caption = dictionary_translate(_caption);
		}	else  
    if (line.compare("Module", 6, TRUE) == 0)
    {
      const int equal = line.find('=');
      if (equal > 0)
      { 
        bool disable = TRUE;
        TToken_string mod(line.mid(equal+1, -1), ',');
        FOR_EACH_TOKEN(mod, cod)
        {
          const int code = atoi(cod);
          if (code == 0 || main_app().has_module(code))
          {
            disable = FALSE;
            break;
          }
        }
        if (disable)
          _enabled = FALSE;
      }
    } else
    if (line.compare("Picture", 7, TRUE) == 0)
    {
      // Estrae solamente il nome del file immagine, elimina path ed estensione
      TFilename name;
      get_next_string(line, 8, name, brace); 
      xvt_fsys_parse_pathname(name, NULL, NULL, _picture.get_buffer(), NULL, NULL); 
    } else  
    if (line.compare("Flags", 5, TRUE) == 0)
    {                 
      TString16 flags;
      get_next_string(line, 6, flags, brace);
      if (flags.find('D') >= 0)
        _enabled = FALSE; 
      if (flags.find('F') >= 0)
        _firm = TRUE; 
    } else
    if (line.compare("Item", 4, TRUE) == 0)
    {
      TMenuitem* item = new TMenuitem(this);
      add(item);
      item->create(line);
    }
  }
}

int TSubmenu::find_string(const TString& str) const
{             
  bool found = FALSE;

  TString caption;
  caption = _caption; caption.upper();
  if (caption.find(str) >= 0 || caption.match(str))
    found = TRUE;
  
  for (int i = 0; i < items(); i++) 
  { 
    const TMenuitem& mi = item(i);
    caption = item(i).caption();
    caption.upper();
    const bool match = caption.find(str) >= 0 || caption.match(str);
    found = match && mi.is_program() && mi.enabled();
    if (found)  
      return i;
  }    
  
  return found ? 0 : -1;
}

int TSubmenu::find(const TMenuitem& it) const
{
  int i;
  for (i = items()-1; i >= 0; i--) 
  { 
    const TMenuitem& mi = item(i);
    if (mi.action() == it.action())
      break;
  }
  return i;
}

TImage& TSubmenu::image() const 
{ 
	return menu().image(picture()); 
}

bool TSubmenu::perform(int i)
{
  bool ok = i >= 0 && i < items();
  if (ok)
    ok = item(i).perform();
  return ok;  
}

bool TMenu::read(const char* name, TString& root)
{   
  TString str(255);
  bool first = TRUE;

  TFilename menuname = name;
  menuname.custom_path();
  TScanner scanner(menuname);
  while (scanner.ok())
  {
    const TString& line = first ? scanner.line() : scanner.pop();
    if (line.empty())
      break;
    
    char brace = '[';  
    get_next_string(line, 0, str, brace);  

    if (first)
    {
      root = str;
      first = FALSE;
    }  

    if (objptr(str) == NULL)
    {
      TSubmenu* mnu = new TSubmenu(this, str);
      mnu->read(scanner);
      add(str, mnu);
    }
    else
      break;   // Menu gia' caricato!
  }
  
  return first == FALSE;
}

///////////////////////////////////////////////////////////
// Menu
///////////////////////////////////////////////////////////


bool TMenu::read(const char* name) 
{ 
  TString root;
  bool ok = read(name, root); 
  if (ok && _current == NULL)
  {
    _default_menu = root;
    _current = find(root);
    _item = 0;
  }  
  return ok;
}

bool TMenu::set_firm(long firm) const
{
  if (firm <= 0)
  {
    TRelation rel(LF_NDITTE);
    TCursor cur(&rel);
    if (cur.items() == 1)
    {
      cur = 0L;
      firm = rel.curr().get_long("CODDITTA");
      if (!prefix().exist(firm))
        firm = 0;
    }
  }
  return main_app().set_firm(firm);
}

bool TMenu::jumpto(TSubmenu* next)
{
  if (next && next->disabled())
    next = NULL;

  if (next)
  {                        
    if (next->query_firm())
    {
#ifdef _DEMO_
      if (!set_firm(1))
        next = NULL;
#else    
      if (!set_firm(0))
        next = NULL;
#endif
    }
    if (next)
    {
      if (_stack.count() >= 32)
        _stack.destroy_base();
      _stack.push(_current->name());
      _current = next;
      _item = 0;
    }
  }  
  
  return next != NULL;  
}

bool TMenu::jumpto_root()
{
  TSubmenu* sm = find(_default_menu);
  return jumpto(sm);
}

TSubmenu& TMenu::pop()
{
  TSubmenu* sm = _current;
  if (!at_top())
  {                                       
    TString& name = (TString&)_stack.pop();
    sm = (TSubmenu*)objptr(name);
  }      
  if (sm)
  {
    _current = sm;
    _item = 0;
  }
  return *sm;
}

TSubmenu* TMenu::find_string(const TString& str)
{
  TString upstr(str);
  upstr.upper();

	if (_last_search != upstr)
	{
		_last_search = upstr;
		_ignore_list.destroy();
	}
  
  restart();
  for (TSubmenu* sm = (TSubmenu*)get(); sm; sm = (TSubmenu*)get())
  {
    if (sm->enabled() && !_ignore_list.is_key(sm->name()))
    {                  
      const int item = sm->find_string(upstr);
      if (item >= 0)
      {
        jumpto(sm);
        _item = item;
        break;
      }  
    }  
  }

	if (sm != NULL)
		_ignore_list.add(sm->name());
  else
		_ignore_list.destroy();

  return sm;
} 

TSubmenu* TMenu::find_parent(const TSubmenu& sub)
{
  restart();
  for (TSubmenu* sm = (TSubmenu*)get(); sm; sm = (TSubmenu*)get())
  {
		for (int i = sm->items()-1; i >= 0; i--)
		{
			const TMenuitem& mi = sm->item(i);
			if (mi.is_submenu() && mi.action().find(sub.name()) >= 0)
				break;
		}
	}
	return sm;
}

bool TMenu::perform()
{
  bool ok = _current != NULL;
  if (ok)
    ok = _current->perform(_item);
  return ok;
}

bool TMenu::can_be_transparent(const TImage& i) const
{
	const int w = i.width()-1;
	const int h = i.height()-1;
	const COLOR col = i.get_pixel(0,0);
	if (i.get_pixel(w,0) != col)
		return FALSE;
	if (i.get_pixel(w,h) != col)
		return FALSE;
	if (i.get_pixel(0,h) != col)
		return FALSE;
	return TRUE;
}

TImage& TMenu::image(const char* name)
{                 
  TTimed_image* image = (TTimed_image*)_images.objptr(name);
  if (image == NULL)
  { 
    TFilename realname;
    const char* ext[3] = { "jpg", "gif", "bmp" };
    for (int i = 0; i < 3; i++)
    {
      realname = name;
      realname << '.' << ext[i];
      realname.custom_path();
      if (realname.exist())
        break;
    }
    if (realname.exist())
    {
      if (_images.items() == 0)
        _default_bmp = name;      // Store default bitmap name

      image = new TTimed_image(realname);  
      if (can_be_transparent(*image))
        image->convert_transparent_color(MASK_BACK_COLOR);
      _images.add(name, image);
    }  
    else
    {
      image = (TTimed_image*)_images.objptr(_default_bmp);
      if (image == NULL)
        fatal_box(FR("Impossibile trovare l'immagine %s"), (const char*)_default_bmp);
    }  
      
    if (_images.items() > 3)  
    {
      TString worst_bmp;
      clock_t worst_time = image->touch();  // Impedisco di cancellare la prossima
      _images.restart();
      for (THash_object* o = _images.get_hashobj(); o; o = _images.get_hashobj())
      {       
        if (o->key() != _default_bmp)         
        {
          TTimed_image& i = (TTimed_image&)o->obj();
          if (i.last_time() < worst_time)
          {
            worst_time = i.last_time();
            worst_bmp = o->key();
          }
        }  
      }
      _images.remove(worst_bmp);
    }  
  }
  image->touch();
  return *image;
}

void TMenu::reload_images()
{ 
	_images.destroy();
}

bool TMenu::has_module(const char* mod)
{
  TString16 key;

  if (_modules.items() == 0)
  {
    TScanner scanner(AUT_FILE);
    TString16 val;
    for (int aut = 0; scanner.line() != ""; aut++)
    {              
      key.strncpy(scanner.token(), 2);
      key.lower();
      val.format("%d", aut);
      _modules.add(key, val);
    }  
  }
  
  key.strncpy(mod, 2);
  key.lower();
  
  int module = 0;
  TString* cod = (TString*)_modules.objptr(key);
  if (cod) module = atoi(*cod);
  return main_app().has_module(module);
}

bool TMenu::is_dangerous(const char* mod)
{
  TString code(mod);
  code.cut(2);
  return _dangerous.get_pos(code) >= 0;
}

TMenu::TMenu() : _current(NULL), _item(0)
{ }

TMenu::~TMenu()
{ }