package App::Changelord::Role::Versions;

use v5.36.0;

use List::AllUtils qw/ first min /;
use Version::Dotted::Semantic;

use Moo::Role;

use feature 'try';

requires 'changelog';

sub latest_version($self){
    first { $_ } grep { $_ ne 'NEXT' } map { eval { $_->{version} } } $self->changelog->{releases}->@*;
}

sub next_version($self) {
    my $version = Version::Dotted::Semantic->new($self->latest_version // '0.0.0');

    my $upcoming = $self->changelog->{releases}[0];

    if( $upcoming->{version} and $upcoming->{version} ne 'NEXT') {
        $upcoming = { changes => [] };
    }

    my %mapping = map {
        my $level = $_->{level};
        map { $_ => $level } $_->{keywords}->@*
    } $self->change_types->@*;

    my $bump =min 2, map { $_ eq 'major' ? 0 : $_ eq 'minor' ? 1 : 2 } map { $mapping{$_->{type}} || 'patch' } $upcoming->{changes}->@*;

    $version->bump($bump);

    return $version->normal;
}

sub is_next($self,$release) {
    my $version = $release->{version};
    return !$version || $version eq 'NEXT';
}

sub next_release($self) {
    my $changelog = $self->changelog;

    my $release = $changelog->{releases}[0];

    unless( $self->is_next($release) ) {
        unshift $changelog->{releases}->@*,
        $release = {
            version => 'NEXT',
            changes => [],
        };
    }

    return $release;
}

1;