#!/usr/bin/perl

use strict;
use warnings;

use CGI;
use JSON qw( encode_json );
use Moose::Util::TypeConstraints qw( find_type_constraint );

use Piny;

my $q = CGI->new( );

my $type = $q->param( 't' );
my $value = $q->param( 'v' );

if ( not defined $type or not defined $value ) {
  print "Status: 400 Bad Request\nContent-type: application/json\n\n";
  print encode_json( { "ok" => JSON::false, "msg" => "Unable to validate due to client-side error, please reload this page. Required parameter missing." } );
} else {

  my $constraint = find_type_constraint( $type );

  if ( not defined $constraint ) {
    print "Status: 400 Bad Request\nContent-type: application/json\n\n";
    print encode_json( { "ok" => JSON::false, "msg" => "Unable to validate due to client-side error, please reload this page. Invalid constraint name." } );
  } else {

    print "Status: 200 OK\nContent-type: application/json\n\n";

    my $error = $constraint->validate( $value );

    if ( defined $error ) {
      print encode_json( { "ok" => JSON::false, "msg" => $error } );
    } else {
      print encode_json( { "ok" => JSON::true } );
    };

  };

};