package Data::QRCode::XS;
use strict;
use warnings;
# VERSION
use Alien::QREncode;
use Data::QRCode::XS::Inline C => ( );

my %levels = (
    L => ECLEVEL_L,
    M => ECLEVEL_M,
    Q => ECLEVEL_Q,
    H => ECLEVEL_H,
);

sub new {
    my ($class, $data, $level, $version) = @_;
    $version ||= 0;
    $level = $levels{uc $level} || ECLEVEL_M;
    return _build($class,$data,$level,$version);
}

sub data_at {
    my ($self,$x,$y) = @_;
    my $width = $self->width;
    if ($x < 0 or $x >= $width or $y < 0 or $y >= $width) {
        return;
    }
    my $value = _data_at($self,$x,$y);

    return {
        color        => $value & 0x01,
        in_data      => $value & 0x02,
        in_format    => $value & 0x04,
        in_version   => $value & 0x08,
        in_timing    => $value & 0x10,
        in_alignment => $value & 0x20,
        in_finder    => $value & 0x40,
        in_misc      => $value & 0x80,
    };
}

1;

__DATA__

__C__

int ECLEVEL_L() { return QR_ECLEVEL_L; }
int ECLEVEL_M() { return QR_ECLEVEL_M; }
int ECLEVEL_Q() { return QR_ECLEVEL_Q; }
int ECLEVEL_H() { return QR_ECLEVEL_H; }

SV* _build(const char* class, const SV* data, int level, int version ) {
    unsigned char * str;
    STRLEN len;
    SV * qrsv; SV* self;
    QRcode* qr_code;

    str = SvPVutf8(data,len);
    qr_code = QRcode_encodeData(len,data,version,(QRecLevel)level);
    qrsv = newSViv((IV)qr_code);
    self = newRV_noinc(qrsv);
    sv_bless(self, gv_stashpv(class, GV_ADD));
    SvREADONLY_on(qrsv);

    return self;
}

int version(SV* self) {
    return ((QRcode*)SvIV(SvRV(self)))->version;
}

int width(SV* self) {
    return ((QRcode*)SvIV(SvRV(self)))->width;
}

void DESTROY(SV* self) {
    QRcode* qr_code = (QRcode*)SvIV(SvRV(self));
    QRcode_free(qr_code);
}

int _data_at(SV* self, int x, int y) {
    QRcode* qr_code = (QRcode*)SvIV(SvRV(self));
    return qr_code->data[x+y*width];
}