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# ABSTRACT: Basecamp.com API Client
package API::Basecamp;

use Data::Object::Class;
use Data::Object::Signatures;

use Data::Object::Library qw(
    Str
);

extends 'API::Client';

our $VERSION = '0.06'; # VERSION

our $DEFAULT_URL = "https://basecamp.com";

# ATTRIBUTES

has account => (
    is       => 'rw',
    isa      => Str,
    required => 1,
);

has password => (
    is       => 'rw',
    isa      => Str,
    required => 1,
);

has username => (
    is       => 'rw',
    isa      => Str,
    required => 1,
);

# DEFAULTS

has '+identifier' => (
    default  => 'API::Basecamp (Perl)',
    required => 0,
);

has '+url' => (
    default  => $DEFAULT_URL,
    required => 0,
);

has '+version' => (
    default  => 1,
    required => 0,
);

# CONSTRUCTION

after BUILD => method {

    my $username   = $self->username;
    my $password   = $self->password;
    my $account    = $self->account;
    my $version    = $self->version;

    my $userinfo   = "$username:$password";
    my $url        = $self->url;

    $url->path("/$account/api/v$version");
    $url->userinfo($userinfo);

    return $self;

};

# METHODS

method PREPARE ($ua, $tx, %args) {

    my $headers = $tx->req->headers;
    my $url     = $tx->req->url;

    # default headers
    $headers->header('Content-Type' => 'application/json');

    # append path suffix
    $url->path("@{[$url->path]}.json") if $url->path !~ /\.json$/;

}

method resource (@segments) {

    # build new resource instance
    my $instance = __PACKAGE__->new(
        debug      => $self->debug,
        fatal      => $self->fatal,
        retries    => $self->retries,
        timeout    => $self->timeout,
        user_agent => $self->user_agent,
        account    => $self->account,
        identifier => $self->identifier,
        username   => $self->username,
        password   => $self->password,
        version    => $self->version,
    );

    # resource locator
    my $url = $instance->url;

    # modify resource locator if possible
    $url->path(join '/', $self->url->path, @segments);

    # return resource instance
    return $instance;