<?php
/**
 * Load required classes
 */
require_once('USPSBase.php');

/**
 */
class USPSInternationalLabel extends USPSBase {
  /**
   * @var string - the api version used for this type of call
   */
  protected $apiVersion = 'ExpressMailIntl';
  /**
   * @var array - route added so far.
   */
  protected $fields = array();

  protected $contents = array();
  /**
   * Perform the API call.
   * @return string
   */
  public function createLabel() {
  	// Add contents
  	if($this->contents && count($this->contents)) {
  		$this->setField(31, 'ShippingContents', $this->contents);
  	}

  	// Add missing required
  	$this->addMissingRequired();

  	// Sort them
  	// Hack by the only way this will work properly
  	// since usps wants the tags to be in 
  	// a certain order
  	ksort($this->fields, SORT_NUMERIC);

  	// remove the \d. from the key
  	foreach($this->fields as $key => $value) {
  		$newKey = str_replace('.', '', $key);
  		$newKey = preg_replace('/\d+\:/', '', $newKey);
  		unset($this->fields[$key]);
  		$this->fields[$newKey] = $value;
  	}

    return $this->doRequest();
  }

  /**
   * Return the USPS confirmation/tracking number if we have one
   * @return string|bool
   */
  public function getConfirmationNumber() {
  	$response = $this->getArrayResponse();
  	// Check to make sure we have it
  	if(isset($response[$this->getResponseApiName()])) {
  		if(isset($response[$this->getResponseApiName()]['BarcodeNumber'])) {
  			return $response[$this->getResponseApiName()]['BarcodeNumber'];
  		}
  	}

  	return false;
  }

  /**
   * Return the USPS label as a base64 encoded string
   * @return string|bool
   */
  public function getLabelContents() {
    $response = $this->getArrayResponse();
    // Check to make sure we have it
    if(isset($response[$this->getResponseApiName()])) {
      if(isset($response[$this->getResponseApiName()]['LabelImage'])) {
        return $response[$this->getResponseApiName()]['LabelImage'];
      }
    }

    return false;
  }

  /**
   * returns array of all fields added
   * @return array
   */
  public function getPostFields() {
    return $this->fields;
  }

  /**
   * Add shipping contents
   * 
   * @return object
   */
  public function addContent($description, $value, $pounds, $ounces, $quantity=1, $tarrifNumber=null, $countryOfOrigin=null) {
	  	$this->contents['ItemDetail'][] = array(
	  		'Description' => $description,
	  		'Quantity' => $quantity,
	  		'Value' => $value,
	  		'NetPounds' => $pounds,
	  		'NetOunces' => $ounces,
	  		'HSTariffNumber' => $tarrifNumber,
	  		'CountryOfOrigin' => $countryOfOrigin,
	  	);

	  	return $this;
  }

  /**
   * Set the from address
   * @param string $firstName
   * @param string $lastName
   * @param string $company
   * @param string $address
   * @param string $city
   * @param string $state
   * @param string $zip
   * @param string $address2
   * @param string $zip4
   * @param string $phone
   * @return object
   */
  public function setFromAddress($firstName, $lastName, $company, $address, $city, $state, $zip, $address2=null, $zip4=null, $phone=null, $middleName=null) {
  	$this->setField(5, 'FromFirstName', $firstName);
  	$this->setField(6, 'FromMiddleInitial', $middleName);
  	$this->setField(7, 'FromLastName', $lastName);
  	$this->setField(8, 'FromFirm', $company);
  	$this->setField(9, 'FromAddress1', $address2);
  	$this->setField(10, 'FromAddress2', $address);
  	$this->setField(11, 'FromCity', $city);
  	$this->setField(12, 'FromState', $state);
  	$this->setField(13, 'FromZip5', $zip);
  	$this->setField(14, 'FromZip4', $zip4);
  	$this->setField(15, 'FromPhone', $phone);

  	return $this;
  }

  /**
   * Set the to address
   * @param string $firstName
   * @param string $lastName
   * @param string $company
   * @param string $address
   * @param string $city
   * @param string $state
   * @param string $zip
   * @param string $address2
   * @param string $zip4
   * @param string $phone
   * @return object
   */
  public function setToAddress($firstName, $lastName, $company, $address, $city, $province, $country, $zip, $address2=null, $poBoxFlag='N', $phone=null, $fax=null, $email=null) {
  	$this->setField(16, 'ToFirstName', $firstName);
  	$this->setField(17, 'ToLastName', $lastName);
  	$this->setField(18, 'ToFirm', $company);
  	$this->setField(19, 'ToAddress1', $address2);
  	$this->setField(20, 'ToAddress2', $address);
  	$this->setField(21, 'ToCity', $city);
  	$this->setField(22, 'ToProvince', $province);
  	$this->setField(23, 'ToCountry', $country);
  	$this->setField(24, 'ToPostalCode', $zip);
  	$this->setField(25, 'ToPOBoxFlag', $poBoxFlag);
  	$this->setField(26, 'ToPhone', $phone);
  	$this->setField(27, 'ToFax', $fax);
  	$this->setField(28, 'ToEmail', $email);

  	return $this;
  }

  /** 
   * Set any other requried string make sure you set the correct position as well
   * as the position of the items matters
   * @param int $position 
   * @param string $key
   * @param string $value
   * @return object
   */
  public function setField($position, $key, $value) {
  	$this->fields[$position . ':' . $key] = $value;
  	return $this;
  }

  /**
   * Set package weight in ounces
   *
   */
  public function setWeightOunces($weight) {
  	$this->setField(33, 'GrossOunces', $weight);
  	return $this;
  }

  /**
   * Set package weight in ounces
   *
   */
  public function setWeightPounds($weight) {
  	$this->setField(32, 'GrossPounds', $weight);
  	return $this;
  }


  /**
   * Add missing required elements
   * @return void
   */
  protected function addMissingRequired() {
  	$required = array(
  		'1:Option' => '',
  		'1.1:Revision' => '2',
  		'4:ImageParameters' => '',

  		
  		'30:Container' => 'NONRECTANGULAR',
  		'32:GrossPounds' => '',
  		'33:GrossOunces' => '',
  		'34:ContentType' => 'Documents',
  		'35:Agreement' => 'Y',
  		'36:ImageType' => 'PDF',
  		'37:ImageLayout' => 'ALLINONEFILE',
  		'38:POZipCode' => '',
  		'39:LabelDate' => '',
  		'40:HoldForManifest' => 'N',
  		'41:Size' => 'LARGE',
  		'42:Length' => '',
  		'43:Width' => '',
  		'44:Height' => 'false',
  		'45:Girth' => '',
  	);


  	// We need to add additional fields based on api we are using
  	if($this->apiVersion == 'ExpressMailIntl') {
  		$required = array_merge($required, array(
  			'29:NonDeliveryOption' => 'Return',
  		));
  	} elseif($this->apiVersion == 'PriorityMailIntl') {
  		$required = array_merge($required, array(
  			'29:NonDeliveryOption' => 'Return',
  			'31.1:Insured' => 'N',
  			'40.1:EELPFC' => '',
  		));
  	} elseif($this->apiVersion == 'FirstClassMailIntl') {
  		$required = array_merge($required, array(
  			'30.1:FirstClassMailType' => 'PARCEL',
  			'31.1:Insured' => 'N',
  			'33.1:Machinable' => 'false',
  			'40.1:EELPFC' => '',
  		));
  	}

  	foreach($required as $item => $value) {
  		$explode = explode(':', $item);
  		if(!isset($this->fields[$item])) {
  			$this->setField($explode[0], $explode[1], $value);
  		}
  	}
  }

}