use Test::More tests => 2 + 1 + 1 + 1 + 1;
use Term::TtyRec::Plus;

# "constants"
my $ttyrec = "t/nethack.ttyrec";
my $frames = 1783;
my $time = 434.991698026657;
my $time2 = 2.890479;

# check whether two floating point values are close enough
sub is_float {
    my ($a, $b, $test) = @_;
    if (abs($a - $b) < 1e-4) {
        pass($test);
    }
    else {
        fail($test);
        diag("Expected $a to be close to $b.");
    }
}

my $t;

# testing time_threshold #######################################################
my $thresh = .02;
$t = Term::TtyRec::Plus->new(
    infile         => $ttyrec,
    time_threshold => $thresh,
);

my $trunc = 0;
my $trunc2 = 0;
my $time_truncated = 0;
while (my $frame_ref = $t->next_frame()) {
    $trunc += $frame_ref->{diff};

    my $calced_diff = defined($frame_ref->{prev_timestamp}) ? $frame_ref->{timestamp} - $frame_ref->{prev_timestamp} : 0;

    $trunc2 += $calced_diff;

    $calced_diff = $thresh if $calced_diff > $thresh;
    $time_truncated += $calced_diff;
}

is_float($trunc,  $time_truncated, "time_threshold works with diffs");
is_float($trunc2, $time_truncated, "time_threshold works with timestamp - prev_timestamp");

# testing filehandle ###########################################################
open(my $handle, '<', $ttyrec);
$t = Term::TtyRec::Plus->new(
    filehandle => $handle,
);

my $t_time = 0;
while (my $frame_ref = $t->next_frame()) {
    $t_time += $frame_ref->{diff};
}

is_float($t_time, $time, "filehandle argument works well enough");

# testing infile + filehandle ##################################################
open(my $handle2, '<', $ttyrec);
$t = Term::TtyRec::Plus->new(
    filehandle => $handle2,
    infile     => "t/simple.ttyrec",
);

$t_time = 0;
while (my $frame_ref = $t->next_frame()) {
    $t_time += $frame_ref->{diff};
}

is_float($t_time, $time, "filehandle takes precedence over infile");

# testing bzip2 on filehandle ##################################################
open(my $handle3, '<', 't/simple.ttyrec.bz2');
$t = Term::TtyRec::Plus->new(
    filehandle => $handle3,
    bzip2      => 1,
);

$t_time = 0;
while (my $frame_ref = $t->next_frame()) {
    $t_time += $frame_ref->{diff};
}

is_float($t_time, $time2, "bzip2 on a filehandle works");

# testing bzip2 on infile ######################################################
$t = Term::TtyRec::Plus->new(
    infile => 't/simple.ttyrec.bz2',
);

$t_time = 0;
while (my $frame_ref = $t->next_frame()) {
    $t_time += $frame_ref->{diff};
}

is_float($t_time, $time2, "bzip2 on infile works");