#!/usr/bin/perl -w

eval 'exec /usr/bin/perl -w -S $0 ${1+"$@"}'
    if 0; # not running under some shell

use strict;
use Tkx;
use Time::HiRes qw(time);

Tkx::package_require("tile");

my $mw = Tkx::widget->new(".");

my $pane = $mw->new_ttk__panedwindow(
    -orient => "vertical",
);
$pane->g_pack(
    -expand => 1,
    -fill => "both",
);

my $frame = $pane->new_frame;
$pane->add($frame, -weight => 1);

my $tree = $frame->new_ttk__treeview(
   -columns => [qw(status time)],
   -height => 5,
);

$tree->heading("#0", -text => "Test Name", -command => sub { sort_rows("#0") });
$tree->heading("status", -text => "Status", -command => sub { sort_rows("status") });
$tree->column("status", -width => 45, -anchor => "center");
$tree->heading("time", -text => "Time", -command => sub { sort_rows("time") });
$tree->column("time", -width => 45, -anchor => "e");

my $sb = $frame->new_ttk__scrollbar(
    -orient => "vertical",
    -command => [$tree, "yview"],
);
$sb->g_pack(
    -side => "right",
    -fill => "y",
);

$tree->configure(-yscrollcommand => [$sb, "set"]);
$tree->g_pack(
    -expand => 1,
    -fill => "both",
    -side => "left",
);

my $text = $pane->new_text(
    -font => "Helvetica 10",
    -width => 10,
    -height => 2,
);
$text->tag_configure("heading", -font => "Helvetica 12 bold");
$text->tag_configure("code", -font => "Courier 8");
$pane->add($text, -weight => 3);

$frame = $mw->new_frame(
    -bd => 5,
);
$frame->g_pack(-fill => "x");
my $bb = $frame->new_ttk__button(
    -text => "Run all tests",
    -command => sub { run_tests(Tkx::SplitList($tree->children(""))) },
);
$bb->g_pack(-side => "left");

$bb = $frame->new_ttk__button(
    -text => "Run selected tests",
    -command => sub { run_tests(Tkx::SplitList($tree->selection)) },
);
$bb->g_pack(-side => "left");

$bb = $frame->new_ttk__button(
    -text => "New dir",
    -command => \&new_test_dir,
);
$bb->g_pack(-side => "left");

my $dir;
my %result;

sub new_test_dir {
    my $dir = Tkx::tk___chooseDirectory(
	-parent => $mw,
        -title => "New test directory",
        -mustexist => 1,
    );
    if ($dir) {
	$dir =~ s,/t/?$,,;
	set_dir($dir);
    }
}

sub set_dir {
    $dir = shift;
    %result = ();

    $tree->delete($tree->children(""));
    $text->delete("1.0", "end");

    use File::Find qw(find);
    find({
	wanted => sub {
	    return unless -f $_;
	    return unless /\.t$/;
	    my $name = substr($File::Find::name, length("$dir/t") + 1);
	    substr($name, -2, 2, "");
	    $tree->insert("", "end", -text => $name, -values => ["-", "-"]);
	},
	no_chdir => 1,
    }, "$dir/t");
}

use TAP::Parser;

$tree->g_bind("<<TreeviewSelect>>", \&tree_select);

new_test_dir();

Tkx::MainLoop();

sub run_tests {
    my $old_selection = $tree->selection;
    for my $item (@_) {
        my $test = "t/" . $tree->item($item, "-text") . ".t";
	#print "Item $item $test\n";
	delete $result{$item};

        $tree->selection_set($item);
	$tree->see($item);
	$tree->set($item, "status", "-");
	$tree->set($item, "time", "-");
	Tkx::update();

	my %res;
	my $parser = TAP::Parser->new( { source => "$dir/$test" } );
	while ( my $pres = $parser->next ) {
		$res{output} .= $pres->as_string . "\n";
	}
	my $used = $parser->end_time - $parser->start_time;
	$res{used_time} = sprintf "%.03f", $used;
	$res{skip_all} = $parser->skipped;
	$res{passing} = ($parser->passed == $parser->tests_run);
	$res{status} = $parser->exit;
	$res{max} = $parser->tests_run;
	$res{ok} = $parser->passed;

	#use Data::Dump; print Data::Dump::dump(\%res), "\n";
	$result{$item} = \%res;

	$tree->set($item, "status", $res{passing} ? ($res{skip_all} ? "skipped" : "ok") : "fail");
	$tree->set($item, "time", sprintf "%.2f", $used);
	tree_select();
	Tkx::update();
	#select(undef, undef, undef, 0.4);
    }
    $tree->selection_set($old_selection);
    #$tree->yview_moveto(0);
}

sub tree_select {
    my @sel = Tkx::SplitList($tree->selection);
    #print "[select @sel]\n";
    $text->delete("1.0", "end");
    if (@sel == 0) {
	$text->insert("end", "No test selected\n");
    }
    elsif (@sel == 1) {
	my $name = $tree->item($sel[0], "-text");
	#$text->insert("end", "$name\n");
	if (my $res = $result{$sel[0]}) {
	    $text->insert("end", "Skipped: $res->{skip_all}\n", "heading") if $res->{skip_all};
	    $text->insert("end", "Passed $res->{ok} of $res->{max} tests in $res->{used_time} seconds.\n");
	    $text->insert("end", "Todo tests: $res->{todo}\n") if $res->{todo};
	    $text->insert("end", "Bonus tests: $res->{bonus}\n") if $res->{bonus};
	    $text->insert("end", "Skipped tests: $res->{skip}\n") if $res->{skip};
	    $text->insert("end", "Status: $res->{status}\n") if $res->{status};
	    $text->insert("end", "\nComplete test output\n\n", "heading");
	    $text->insert("end", $res->{output}, "code");
	}
	else {
	    $text->insert("end", "No result\n");
	}
    }
    else {
	my $num_tests = @sel;
	$text->insert("end", "$num_tests tests selected\n");
    }
}


BEGIN {
    my %ascending;

    sub sort_rows {
	my $col = shift;
	$ascending{$col} = !$ascending{$col};

	my $kids = $tree->children("");
	my @kids = Tkx::SplitList($kids);
	@kids = map  { $_->[0] }
                sort {
                    my $cmp = $a->[1] cmp $b->[1];
                    $cmp = -$cmp if $ascending{$col};
                    $cmp
                }
                map  { [$_, $col eq "#0" ? $tree->item($_, "-text") : $tree->set($_, $col) ] }
                @kids;

	$tree->detach($kids);
	for my $item (@kids) {
	    $tree->move($item, "", "end");
	}
    }
}
