package Net::Iugu::Request;
$Net::Iugu::Request::VERSION = '0.000002';
use Moo;

use LWP::UserAgent;
use HTTP::Headers;
use HTTP::Request;

use JSON qw{ from_json to_json };
use MIME::Base64 qw{ encode_base64 };
use String::CamelCase qw{ decamelize };

has 'base_uri' => (
    is      => 'ro',
    builder => sub { 'https://api.iugu.com/v1' },
);

has 'object' => (
    is      => 'rw',
    default => sub {
        my $pkg = ref shift;
        my @parts = split /::/, $pkg;

        return decamelize $parts[-1];
    },
);

has 'token' => (
    is       => 'rw',
    required => 1,
);

has 'endpoint' => (
    is      => 'ro',
    lazy    => 1,
    builder => sub {
        my ($self) = @_;

        return $self->base_uri . '/' . $self->object;
    },
);

has 'ua' => (
    is      => 'ro',
    lazy    => 1,
    builder => sub { LWP::UserAgent->new },
);

has 'headers' => (
    is      => 'ro',
    lazy    => 1,
    builder => sub {
        my ($self) = @_;

        my $auth = 'Basic ' . encode_base64( $self->token . ':', '' );

        return HTTP::Headers->new(
            'Authorization' => $auth,
            'Content-Type'  => 'application/json',
        );
    },
);

sub request {
    my ( $self, $method, $uri, $data ) = @_;

    my $content = $data ? to_json $data : undef;

    my $req = HTTP::Request->new(
        $method => $uri,
        $self->headers,
        $content,
    );

    my $res = $self->ua->request($req);

    return from_json $res->content;
}

1;

# ABSTRACT: Net::Iugu::Request - General HTTP requests to Iugu API

__END__

=pod

=encoding UTF-8

=head1 NAME

Net::Iugu::Request - Net::Iugu::Request - General HTTP requests to Iugu API

=head1 VERSION

version 0.000002

=head1 SYNOPSIS

Encapsulates HTTP requests to Iugu API to properly set the headers,
encode the data sent and decode the data received.

It is used as base class for other modules and shouldn't be instantiated
direclty.

    package Net::Iugu::Endpoint;

    use Moo;
    extends 'Net::Iugu::Request';

    ...

    package main;

    use Net::Iugu::Endpoint;

    my $endpoint = Net::Iugu::Endpoint->new(
        token => 'my_api_token'
    );

    my $res = $endpoint->request( $method, $uri, $data );

=head1 METHODS

=head2 request( $method, $uri, $data )

Encodes the C<$data> as JSON and send it to C<$uri> via C<$method> HTTP
method.

The data is received from the webservice as JSON but are inflated to Perl
data structures before it returns.

=head1 AUTHOR

Blabos de Blebe <blabos@cpan.org>

=head1 COPYRIGHT AND LICENSE

This software is copyright (c) 2015 by Blabos de Blebe.

This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.

=cut