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package App::ArchLinux::PackagerTools::Config;
use strictures;

use autodie;
use Function::Parameters;
use Log::Any qw($log);
use Hash::Merge qw(merge);
use Path::Tiny;
use TOML qw(from_toml);

=head1 NAME

App::ArchLinux::PackagerTools::Config - ShortDesc

=head1 SYNOPSIS

use App::ArchLinux::PackagerTools::Config;

# synopsis...

=head1 DESCRIPTION

# longer description...

=head1 METHODS

=head2 new

 my $config = App::ArchLinux::PackagerTools::Config->new();

Returns a new instance.

=cut

method new($class: $context, $deps = {}) {
	return $class->new_no_defaults($context, $deps);
}

method new_no_defaults($class: $context, $deps = {}) {
	return $context->{$class} if defined $context->{$class};

	my $self = {};
	bless $self, $class;
	$self->{deps} = $deps;
	$self->{config} = $self->_load_config();
	$context->{$class} = $self;
	return $self;
}

=head2 Public Methods

=cut

=head3 get_config

 my $conf = $config->get_config();

Return config content as a hash.

=cut

method get_config() {
	return $self->{config};
}

=head2 Private Methods

=cut

=head3 _load_config

 my $conf = $config->_load_config();

Load configuration from config file. You should use get_config() instead since
that returns a cached in-memory copy.

=cut

method _load_config() {
	my $config = $self->_get_default_config();
	my $file = path(($ENV{XDG_CONFIG_HOME} // $ENV{HOME}."/.config")."/perlpkg/config.toml");
	if ($file->exists) {
		$log->debugf("Reading config file: %s", $file);
		my ($file_config, $err) = from_toml($file->slurp);
		die $log->errorf("Failed to parse config file: %s", $err) unless $file_config;
		$log->debugf("config = %s", $config);
		$log->debugf("file_config = %s", $file_config);
		$config = merge($file_config, $config);
	} else {
		$log->debug("Config file not found. Returning default config");
	}
	$log->debugf("Loaded configuration is: %s", $config);
	return $config;
}

=head3 _get_default_config

 my $default_conf = $config->_get_default_config();

Return a hash with the default config values.

=cut

method _get_default_config() {
	return {
		cache => {
			root_dir => ($ENV{XDG_CACHE_HOME} // $ENV{HOME}."/.cache")."/perlpkg/v1/",
		},
		allowed_maintainers => [
		],
		archweb => {
			cache_timeout => '60min',
			base_url => 'https://www.archlinux.org/',
		},
		cpan => {
			cache_timeout => '60min',
			mirror_url => 'https://cpan.metacpan.org/',
		},
	};
}

1;

__END__