#
# Copyright (C) 2008-2021 Alexis Bienvenüe <paamc@passoire.fr>
#
# This file is part of Auto-Multiple-Choice
#
# Auto-Multiple-Choice 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.
#
# Auto-Multiple-Choice 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 Auto-Multiple-Choice.  If not, see
# <http://www.gnu.org/licenses/>.

use warnings;
use 5.012;

package AMC::Gui::Avancement;

use AMC::Basic;

sub new {
    my ( $entier, %o ) = (@_);
    my $self = {
        entier    => $entier,
        progres   => 0,
        debug     => 0,
        epsilon   => 0.02,
        lastshown => 0,
        id        => '',
        bar       => '',
    };

    for ( keys %o ) {
        $self->{$_} = $o{$_} if ( defined( $self->{$_} ) );
    }

    $self->{entier} = 0 if ( !$self->{entier} );

    debug "Create progression pipe for <$self->{id}> up to $self->{entier}"
      . ( $self->{bar} ? " (progress bar side)" : "" );

    bless $self;
    $|++ if ( $self->{id} );

    return ($self);
}

sub progres {
    my ( $self, $suite ) = (@_);
    $suite *= $self->{entier};
    $self->{progres} += $suite;
    if ( $self->{progres} > $self->{entier} ) {
        $suite -= $self->{progres} - $self->{entier};
        $self->{progres} = $self->{entier};
    }
    print "===<" . $self->{id} . ">=+$suite\n" if ( $self->{id} );
}

sub text {
    my ( $self, $text ) = (@_);
    print "===<" . $self->{id} . ">=T($text)\n" if ( $self->{id} );
}

sub progres_abs {
    my ( $self, $suite ) = (@_);
    $self->progres( $suite - $self->{progres} );
}

sub fin {
    my ( $self, $suite ) = (@_);
    $self->progres_abs(1);
}

sub etat {
    my ($self) = @_;
    return ( $self->{progres} );
}

sub lit {
    my ( $self, $s ) = (@_);
    my $r = -1;
    if ( $s =~ /===<(.*)>=\+([0-9,.]+(?:e[+-]?[0-9]+)?)/ ) {
        my $id    = $1;
        my $suite = $2;
        $suite =~ s/,/./;
        $self->{progres} += $suite;

        if ( $self->{progres} < 0 ) {
            debug("progres($id)=$self->{progres}");
            $self->{progres} = 0;
        }
        if ( $self->{progres} > 1 ) {
            debug("progres($id)=$self->{progres}");
            $self->{progres} = 1;
        }

        $r = $self->{progres};
    }
    if ( $s =~ /===<(.*)>=T\((.*)\)$/ ) {
        if ( $self->{bar} ) {
            $self->{bar}->set_text($2);
        }
        $self->{progres} = 0;
        $r = 0;
    }
    if ( $r >= 0 && $self->{bar} ) {
        $self->{bar}->set_fraction($r);
        if ( $r == 0 || $r >= $self->{lastshown} + $self->{epsilon} ) {
            $self->{lastshown} = $r;
        }
    }
    return ($r);
}

1;