#! /usr/bin/env -S nice raku

use v6;
use Shell::Piping;
use Shell::Piping::Whereceptions;

my int $exitcode = 0;

multi sub MAIN(‚test‘, $dir = ‚.‘, Bool :$verbose?) {

    constant cores = $*KERNEL.cpu-cores - 1;
    constant NL = $?NL;
    my &RED = { „\e[31m$_\e[0m“ };
    my &BOLD = { „\e[1m$_\e[0m“ };

    &RED = &BOLD = { $_ } unless $*OUT.t;

    sub run-test(IO::Path $file where &it-is-a-file) {
        my @out;
        my @err;
        my $failed;
        px«raku -Ilib $file» |» @out :stderr(@err) :done({$exitcode ⚛= 1 if .exitcodes.so});

        („Testing: {$file}“.&BOLD, @out, @err».&RED).flat.join(NL);
    }

    my \test-files = gather {
        for „$dir/t“.IO.d ?? „$dir/t“ !! $dir {
            if .IO.l && !.IO.e {
                warn „WARN: dangling symlink in ⟨$_⟩.“;
                next;
            }
            .take when .IO.extension eq ‚t‘ && !.IO.d;
            .IO.dir()».&?BLOCK when .IO.d;
        }
    }

    .put for test-files.sort.hyper(:batch(1), :degree(cores)).map(*.&run-test);

    exit $exitcode;
}

multi sub MAIN() {
    MAIN(‚test‘, ‚.‘)
}