package App::Asciio ;

$|++ ;

use strict;
use warnings;

use Data::Dumper ;
use Data::TreeDumper ;
use File::Slurp ;
use Readonly ;
#~ use Compress::LZF ':compress';
use Compress::Bzip2 qw(:all :utilities :gzip);

#-----------------------------------------------------------------------------

sub load_file
{
my ($self, $file_name)  = @_;

return unless defined $file_name ;

my ($base_name, $path, $extension) = File::Basename::fileparse($file_name, ('\..*')) ;
$extension =~ s/^\.// ;

my $type =  $extension ne q{}
			? $extension
			: 'internal_asciio_format';

my $title ;

if
	(
	exists $self->{IMPORT_EXPORT_HANDLERS}{$type}{IMPORT} 
	&& defined $self->{IMPORT_EXPORT_HANDLERS}{$type}{IMPORT}
	)
	{
	my ($saved_self, $handler_data) ;
	
	($saved_self, $title, $handler_data) =
		$self->{IMPORT_EXPORT_HANDLERS}{$type}{IMPORT}->
			(
			$self,
			$file_name,
			) ;
		
	$self->load_self($saved_self) ; # resurect from momified
	$self->{IMPORT_EXPORT_HANDLERS}{HANDLER_DATA} = $handler_data ;
	}
else
	{
	my $serialized_self = decompress(read_file($file_name)) ;
	
	my $VAR1 ;
	my $saved_self  = eval $serialized_self or die "load_file: can't load file '$file_name': $! $@\n" ;
	$self->load_self($saved_self) ; # resurect
	delete $self->{IMPORT_EXPORT_HANDLERS}{HANDLER_DATA} ;
	
	$title = $file_name ;
	}	

return $title ;
}

#-----------------------------------------------------------------------------

 # gtk elements memory is handled by Gtk2 module
Readonly my  @GTK_ELEMENTS => 
	qw
		(
		widget PIXMAP 
		ALLOCATED_COLORS 
		ACTIONS CURRENT_ACTIONS ACTIONS_BY_NAME
		HOOKS IMPORT_EXPORT_HANDLERS
		TITLE
		) ;

sub load_self
{
my ($self, $new_self)  = @_;

return unless defined $new_self ;

delete @{$new_self}{@GTK_ELEMENTS} ;
my @keys = keys %{$new_self} ;
@{$self}{@keys} = @{$new_self}{@keys} ;
}

#-----------------------------------------------------------------------------

sub load_elements
{
my ($self, $file_name, $path)  = @_;

return unless defined $file_name ;

my $elements = do $file_name or die "can't load file '$file_name': $! $@\n" ;
$path = '' unless defined $path ;

for my $new_element (@{$elements})
	{
	my $new_element_type = ref $new_element or die "element without type in file '$file_name'!" ;
	
	unless(exists $self->{LOADED_TYPES}{$new_element_type})
		{
		eval "use $new_element_type" ;
		die "Error loading type '$new_element_type' :$@" if $@ ;
		
		$self->{LOADED_TYPES}{$new_element_type}++ ;
		}
	
	my $next_element_type_index = @{$self->{ELEMENT_TYPES}} ;
	
	$new_element->{NAME} = "$path/$new_element->{NAME}" ;
	$new_element->{NAME} =~ s~/+~/~g ;
	$new_element->{NAME} =~ s~^/~~g ;
	
	#~ print $new_element->{NAME} . "\n" ;
	
	if(exists $new_element->{NAME})
		{
		if(exists $self->{ELEMENT_TYPES_BY_NAME}{$new_element->{NAME}})
			{
			print "Overriding element type '$new_element->{NAME}'!\n" ;
			$self->{ELEMENT_TYPES}[$self->{ELEMENT_TYPES_BY_NAME}{$new_element->{NAME}}]
				= $new_element ;
			}
		else
			{
			$self->{ELEMENT_TYPES_BY_NAME}{$new_element->{NAME}} = $next_element_type_index ;
			push @{$self->{ELEMENT_TYPES}}, $new_element ;
			
			$next_element_type_index++ ;
			}
		}
		
	if(exists $new_element->{X})
		{
		push @{$self->{ELEMENTS}}, $new_element ;
		}
	}
}

#-----------------------------------------------------------------------------

sub save_stencil
{
my ($self) = @_ ;

my $name = $self->display_edit_dialog('stencil name') ;

if(defined $name && $name ne q[])
	{
	my $file_name = $self->get_file_name('save') ;

	if(defined $file_name && $file_name ne q[])
		{
		if(-e $file_name)
			{
			my $override = $self->display_yes_no_cancel_dialog
						(
						"Override file!",
						"File '$file_name' exists!\nOverride file?"
						) ;
						
			$file_name = undef unless $override eq 'yes' ;
			}
		}

	if(defined $file_name && $file_name ne q[])
		{
		use Data::Dumper ;
		my ($element) = $self->get_selected_elements(1) ;
		
		my $stencil = Clone::clone($element) ;
		
		delete $stencil->{X} ;
		delete $stencil->{Y} ;
		$stencil->{NAME} = $name;
		
		write_file($file_name, Dumper [$stencil]) ;
		}
	}
}

#-----------------------------------------------------------------------------

sub serialize_self
{
my ($self, $indent) = @_ ;

local $self->{widget} = undef ;
local $self->{PIXMAP} = undef ;
local $self->{ALLOCATED_COLORS} = undef ;
local $self->{ACTIONS} = [] ;
local $self->{HOOKS} = [] ;
local $self->{CURRENT_ACTIONS} = [] ;
local $self->{ACTIONS_BY_NAME} = [] ;
local $self->{DO_STACK} = undef ;
local $self->{IMPORT_EXPORT_HANDLERS} = undef ;
local $self->{MODIFIED} => 0 ;
local $self->{TITLE} = '' ;
local $self->{CREATE_BACKUP} = undef ;

local $Data::Dumper::Purity = 1 ;
local $Data::Dumper::Indent = $indent || 0 ;
local $Data::Dumper::Sortkeys = 1 ;

Dumper($self) ;
}

#-----------------------------------------------------------------------------

sub save_with_type
{
my ($self, $elements_to_save, $type, $file_name) = @_ ;

my $title ;

if
	(
	exists $self->{IMPORT_EXPORT_HANDLERS}{$type}{EXPORT} 
	&& defined $self->{IMPORT_EXPORT_HANDLERS}{$type}{EXPORT}
	)
	{
	$title = $self->{IMPORT_EXPORT_HANDLERS}{$type}{EXPORT}->
			(
			$self,
			$elements_to_save,
			$file_name,
			$self->{IMPORT_EXPORT_HANDLERS}{HANDLER_DATA},
			) ;
	
	}
else
	{
	if($self->{CREATE_BACKUP} && -e $file_name)
		{
		use File::Copy;
		copy($file_name,"$file_name.bak") or die "save_with_type: Copy failed while making backup copy: $!";		
		}
		
	write_file($file_name,compress($self->serialize_self() .'$VAR1 ;')) ;
	$title = $file_name ;
	}	
	
return $title ;
}

#-----------------------------------------------------------------------------

1 ;