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package MooseX::Net::API::Meta::Method;
use Moose;
use MooseX::Net::API::Error;
use MooseX::Types::Moose qw/Str Int ArrayRef/;
extends 'Moose::Meta::Method';
use Moose::Util::TypeConstraints;
subtype UriPath => as 'Str' => where { $_ =~ m!^/! } =>
message {"path must start with /"};
enum 'Method' => qw(GET POST PUT DELETE);
has description => (is => 'ro', isa => 'Str');
has method => (is => 'ro', isa => 'Method', required => 1);
has path => (is => 'ro', isa => 'UriPath', required => 1, coerce => 1);
has params_in_url => (is => 'ro', isa => 'Bool', default => 0);
has authentication => (is => 'ro', isa => 'Bool', required => 0, default => 0);
has expected => (
traits => ['Array'],
is => 'ro',
isa => ArrayRef [Int],
auto_deref => 1,
required => 0,
predicate => 'has_expected',
handles => {find_expected_code => 'grep',},
);
has params => (
traits => ['Array'],
is => 'ro',
isa => ArrayRef [Str],
required => 0,
default => sub { [] },
auto_deref => 1,
handles => {find_param => 'first',}
);
has required => (
traits => ['Array'],
is => 'ro',
isa => ArrayRef [Str],
default => sub { [] },
auto_deref => 1,
required => 0,
);
before wrap => sub {
my $class = shift;
my %args = @_;
$class->_validate_params_before_install(\%args);
$class->_validate_required_before_install(\%args);
};
sub wrap {
my $class = shift;
my %args = @_;
if (!defined $args{body}) {
my $code = sub {
my ($self, %method_args) = @_;
my $method =
$self->meta->find_method_by_name($args{name})
->get_original_method;
$method->_validate_before_execute(\%method_args);
my $path = $method->build_path(\%method_args);
my $local_url = $method->build_uri($self, $path);
my $result = $self->http_request(
$method->method => $local_url,
$method->params_in_url, \%method_args
);
my $code = $result->code;
if ($method->has_expected
&& !$method->find_expected_code(sub {/$code/}))
{
die MooseX::Net::API::Error->new(
reason => "unexpected code",
http_error => $result
);
}
my $content_type = $self->api_format
// $result->header('Content-Type');
$content_type =~ s/(;.+)$//;
my $content;
if ($result->is_success && $code != 204) {
my @deserialize_order = ($content_type, $self->api_format);
$content =
$self->deserialize($result->content, \@deserialize_order);
if (!$content) {
die MooseX::Net::API::Error->new(
reason => "can't deserialize content",
http_error => $result,
);
}
}
if ($result->is_success) {
if (wantarray) {
return ($content, $result);
}
else {
return $content;
}
}
die MooseX::Net::API::Error->new(
http_error => $result,
reason => $result->reason,
);
};
$args{body} = $code;
}
$class->SUPER::wrap(%args);
}
sub _validate_params_before_install {
my ( $class, $args ) = @_;
if ( !$args->{params} && $args->{required} ) {
die MooseX::Net::API::Error->new( reason =>
"You can't require a param that have not been declared" );
}
}
sub _validate_required_before_install {
my ( $class, $args ) = @_;
if ( $args->{required} ) {
foreach my $required ( @{ $args->{required} } ) {
die MooseX::Net::API::Error->new( reason =>
"$required is required but is not declared in params" )
if ( !grep { $_ eq $required } @{ $args->{params} } );
}
}
}
sub _validate_before_execute {
my ($self, $args) = @_;
for my $method (qw/check_params_before_run check_required_before_run/) {
$self->$method($args);
}
}
sub check_params_before_run {
my ($self, $args) = @_;
# check if there is no undeclared param
foreach my $arg (keys %$args) {
if (!$self->find_param(sub {/$arg/})) {
die MooseX::Net::API::Error->new(
reason => "'$arg' is not declared as a param");
}
}
}
sub check_required_before_run {
my ($self, $args) = @_;
# check if all our params declared as required are present
foreach my $required ($self->required) {
if (!grep { $required eq $_ } keys %$args) {
die MooseX::Net::API::Error->new(reason =>
"'$required' is declared as required, but is not present");
}
}
}
sub build_path {
my ($self, $args) = @_;
my $path = $self->path;
my $max_iter = keys %$args;
my $i = 0;
while ($path =~ /(?:\$|:)(\w+)/g) {
my $match = $1;
$i++;
if (my $value = delete $args->{$match}) {
$path =~ s/(?:\$|:)$match/$value/;
}
if ($max_iter > $i) {
$path =~ s/(?:\$|:)(\w+)//;
}
}
return $path;
}
sub build_uri {
my ($method, $self, $path) = @_;
my $local_url = $self->api_base_url->clone;
my $path_url_base = $local_url->path;
$path_url_base =~ s/\/$// if $path_url_base =~ m!/$!;
$path_url_base .= $path;
if ($self->api_format && $self->api_format_mode eq 'append') {
my $format = $self->api_format;
$path_url_base .= "." . $format;
}
$local_url->path($path_url_base);
return $local_url;
}
1;
|
