adding back CNP

readme.md

@@ -1203,6 +1203,18 @@ echo $faker->prefixFemale; // "d-na."
 echo $faker->firstNameMale; // "Adrian"
 // Generates a random female fist name
 echo $faker->firstNameFemale; // "Miruna"
+
+
+// Generates a random Personal Numerical Code (CNP)
+echo $faker->cnp; // "2800523081231"
+// Valid option values:
+//    $gender: null (random), male, female
+//    $dateOfBirth (1800+): null (random), Y-m-d, Y-m (random day), Y (random month and day)
+//          i.e. '1981-06-16', '2015-03', '1900'
+//    $county: 2 letter ISO 3166-2:RO county codes and B1, B2, B3, B4, B5, B6 for Bucharest's 6 sectors
+//    $isResident true/false flag if the person resides in Romania
+echo $faker->cnp($gender = null, $dateOfBirth = null, $county = null, $isResident = true);
+
 ```
 
 ### `Faker\Provider\ro_RO\PhoneNumber`

src/Faker/Provider/ro_RO/Person.php

@@ -87,4 +87,152 @@ class Person extends \Faker\Provider\Person
 
     protected static $titleMale = array('dl.', 'ing.', 'dr.');
     protected static $titleFemale = array('d-na.', 'd-șoara', 'ing.', 'dr.');
+
+    protected static $cnpCountyCodes = array(
+        'AB' => '01', 'AR' => '02', 'AG' => '03', 'B'  => '40', 'BC' => '04', 'BH' => '05',
+        'BN' => '06', 'BT' => '07', 'BV' => '08', 'BR' => '09', 'BZ' => '10', 'CS' => '11',
+        'CL' => '51', 'CJ' => '12', 'CT' => '13', 'CV' => '14', 'DB' => '15', 'DJ' => '16',
+        'GL' => '17', 'GR' => '52', 'GJ' => '18', 'HR' => '19', 'HD' => '20', 'IL' => '21',
+        'IS' => '22', 'IF' => '23', 'MM' => '24', 'MH' => '25', 'MS' => '26', 'NT' => '27',
+        'OT' => '28', 'PH' => '29', 'SM' => '30', 'SJ' => '31', 'SB' => '32', 'SV' => '33',
+        'TR' => '34', 'TM' => '35', 'TL' => '36', 'VS' => '37', 'VL' => '38', 'VN' => '39',
+
+        'B1' => '41', 'B2' => '42', 'B3' => '43', 'B4' => '44', 'B5' => '45', 'B6' => '46'
+    );
+
+    /**
+     * Personal Numerical Code (CNP)
+     *
+     * @link http://ro.wikipedia.org/wiki/Cod_numeric_personal
+     * @example 1111111111118
+     *
+     * @param null|string $gender Person::GENDER_MALE or Person::GENDER_FEMALE
+     * @param null|string $dateOfBirth (1800-2099) 'Y-m-d', 'Y-m', 'Y'  I.E. '1981-06-16', '2085-03', '1900'
+     * @param null|string $county county code where the CNP was issued
+     * @param null|bool $isResident flag if the person resides in Romania
+     * @return string 13 digits CNP code
+     */
+    public function cnp($gender = null, $dateOfBirth = null, $county = null, $isResident = true)
+    {
+        $genders = array(Person::GENDER_MALE, Person::GENDER_FEMALE);
+        if (empty($gender)) {
+            $gender = static::randomElement($genders);
+        } elseif (!in_array($gender, $genders)) {
+            throw new \InvalidArgumentException("Gender must be '{Person::GENDER_MALE}' or '{Person::GENDER_FEMALE}'");
+        }
+
+        $date = $this->getDateOfBirth($dateOfBirth);
+
+        if (is_null($county)) {
+            $countyCode = static::randomElement(array_values(static::$cnpCountyCodes));
+        } elseif (!array_key_exists($county, static::$cnpCountyCodes)) {
+            throw new \InvalidArgumentException("Invalid county code '{$county}' received");
+        } else {
+            $countyCode = static::$cnpCountyCodes[$county];
+        }
+
+        $cnp = (string)$this->getGenderDigit($date, $gender, $isResident)
+            . $date->format('ymd')
+            . $countyCode
+            . static::numerify('##%')
+        ;
+
+        $checksum = $this->getChecksumDigit($cnp);
+
+        return $cnp.$checksum;
+    }
+
+    /**
+     * @param $dateOfBirth
+     * @return \DateTime
+     */
+    protected function getDateOfBirth($dateOfBirth)
+    {
+        if (empty($dateOfBirth)) {
+            $dateOfBirthParts = array(static::numberBetween(1800, 2099));
+        } else {
+            $dateOfBirthParts = explode('-', $dateOfBirth);
+        }
+        $baseDate = \Faker\Provider\DateTime::dateTimeBetween("first day of {$dateOfBirthParts[0]}", "last day of {$dateOfBirthParts[0]}");
+
+        switch (count($dateOfBirthParts)) {
+            case 1:
+                $dateOfBirthParts[] = $baseDate->format('m');
+            //don't break, we need the day also
+            case 2:
+                $dateOfBirthParts[] = $baseDate->format('d');
+            //don't break, next line will
+            case 3:
+                break;
+            default:
+                throw new \InvalidArgumentException("Invalid date of birth - must be null or in the 'Y-m-d', 'Y-m', 'Y' format");
+        }
+
+        if ($dateOfBirthParts[0] < 1800 || $dateOfBirthParts[0] > 2099) {
+            throw new \InvalidArgumentException("Invalid date of birth - year must be between 1900 and 2099, '{$dateOfBirthParts[0]}' received");
+        }
+
+        $dateOfBirthFinal = implode('-', $dateOfBirthParts);
+        $date = \DateTime::createFromFormat('Y-m-d', $dateOfBirthFinal);
+        //a full (invalid) date might have been supplied, check if it converts
+        if ($date->format('Y-m-d') !== $dateOfBirthFinal) {
+            throw new \InvalidArgumentException("Invalid date of birth - '{$date->format('Y-m-d')}' generated based on '{$dateOfBirth}' received");
+        }
+
+        return $date;
+    }
+
+    /**
+     *
+     * https://ro.wikipedia.org/wiki/Cod_numeric_personal#S
+     *
+     * @param \DateTime $dateOfBirth
+     * @param bool $isResident
+     * @param string $gender
+     * @return int
+     */
+    protected static function getGenderDigit(\DateTime $dateOfBirth, $gender, $isResident)
+    {
+        if (!$isResident) {
+            return 9;
+        }
+
+        if ($dateOfBirth->format('Y') < 1900) {
+            if ($gender == Person::GENDER_MALE) {
+                return 3;
+            }
+            return 4;
+        }
+
+        if ($dateOfBirth->format('Y') < 2000) {
+            if ($gender == Person::GENDER_MALE) {
+                return 1;
+            }
+            return 2;
+        }
+
+        if ($gender == Person::GENDER_MALE) {
+            return 5;
+        }
+        return 6;
+    }
+
+    /**
+     * Calculates a checksum for the Personal Numerical Code (CNP).
+     *
+     * @param string $value 12 digit CNP
+     * @return int checksum digit
+     */
+    protected function getChecksumDigit($value)
+    {
+        $checkNumber = 279146358279;
+
+        $checksum = 0;
+        foreach (range(0, 11) as $digit) {
+            $checksum += (int)substr($value, $digit, 1) * (int)substr($checkNumber, $digit, 1);
+        }
+        $checksum = $checksum % 11;
+
+        return $checksum == 10 ? 1 : $checksum;
+    }
 }