Warning: chmod(): Operation not permitted in /var/www/hopeinstoughton_www/wp-content/plugins/simple-universal-google-analytics/main.php on line 8
[0] in function chmod in /var/www/hopeinstoughton_www/wp-content/plugins/simple-universal-google-analytics/main.php on line 8
[1] in function include_once in /var/www/hopeinstoughton_www/wp-settings.php on line 560
[2] in function require_once in /var/www/hopeinstoughton_www/wp-config.php on line 85
[3] in function require_once in /var/www/hopeinstoughton_www/wp-load.php on line 50
[4] in function require_once in /var/www/hopeinstoughton_www/wp-blog-header.php on line 13
[5] in function require in /var/www/hopeinstoughton_www/index.php on line 17

<?php

namespace modules\freightUps;


class main extends \moduleMain {

	use \modules\input\traits {
			\modules\input\traits::__construct as __ConstructInput;
		}
	use \modules\output\traits {
			\modules\output\traits::__construct as __ConstructOutput;
		}

	private $identifier;
	
	const CARRIER_ID = 'se-613701';	

	public function __construct() {
		parent::__construct(__DIR__);
		$this->__ConstructInput();
		$this->__ConstructOutput();
		$this->identifier = 'ups';

	}

	// class must be listed in a 'depends' setting to be activated
	public function Activate() {
		hook_add('freight.calculate', [$this, '__get_calculate']);			// calculate the freight cost for the given service(s)
		hook_add('tracking.validate', [$this, '__tracking_validate']);		// do we recognize this tracking number?  (is it in the correct format, not "does it exist")
		// to do: generate a link to the tracking results
	}

	// https://shipengine.github.io/shipengine-openapi/#operation/compare_bulk_rates
	// https://www.shipengine.com/docs/rates/
	public function __get_calculate($params) {
		if (empty($params->originZip)) {
			return $params->status = 'error: no origin zip';
		}
		if (!property_exists($params, 'services')) {
			$params->services = [];
		}

		$oz = $param->weight / 1000 * 35.274;
		if ($oz < 1) $oz = 1;
		$oz = ceil($oz);

		[$from_state, $from_ctry] = \Misc::ZipToState($params->originZip);
		[$to_state, $to_ctry] = \Misc::ZipToState($params->targetZip);
		$json = [
			'carrier_id' => static::CARRIER_ID,
			'from_postal_code' 		=> $params->originZip,
			'from_state_province'	=> $from_state,
			'from_country_code' 	=> $from_ctry,
			'to_postal_code' 		=> $params->targetZip,
			'to_state_province' 	=> $to_state,
			'to_country_code' 		=> $to_ctry,
			'weight' => [
				'value' => $oz,
				'unit' => 'ounce',
			],
			'dimensions' => [
				'unit' => 'inch',
				'length' => 0,
				'width' => 0,
				'height' => 0,
			],
			'confirmation' 			=> 'none',
			'address_residential_indicator' => 'unknown',
			'ship_date' => gmdate('Y-m-d\TH:00:00.000\Z', $params->shipdate),
		];

		$curl = new \CurlObject;
		$curl->Url('https://api.shipengine.com/v1/rates/estimate')
			->postdataJson($json)
			->RequestHeader('API-Key', $this->settings['apikey'])
			->Execute();
		$body = $curl->Body();
		$result = json_decode($body, TRUE);
		foreach($result as $service) {
			$rate_item = $service['service_code'];
			$svc_id = substr(md5($rate_item . $this->identifier), 0, 8);
			$params->services[] = [ 
				'source'	=> $this->identifier, 
				'key'		=> $svc_id, 
				'value'		=> $rate_item,
				'caption'	=> $service['service_type'],
				'cost'		=> $service['shipping_amount']['amount'],
				'shipdate'	=> $params->shipdate,
				'estimated' => strtotime(str_replace('T', ' ', $service['estimated_delivery_date'])),
			];
//			error_log(json_encode($service, JSON_UNESCAPED_SLASHES));
		}
	}

	// https://www.codeproject.com/Articles/21224/Calculating-the-UPS-Tracking-Number-Check-Digit
	public function parseTrackingNumber($tracking_number) {
		$tracking_number = strtoupper($tracking_number);
		if (substr($tracking_number, 0, 2) == '1Z') {
			$result = new \StdClass;
			$result->carrier  = $this->identifier;
			$result->tracking = $tracking_number;
			$result->account  = substr($tracking_number, 2,  6);
			$result->service  = substr($tracking_number, 8,  2);		// 01 = next day, 02 = second day air, 03 = ground
			$result->invoice  = substr($tracking_number, 10, 5);
			$result->package  = substr($tracking_number, 15, 2);		// package number
			$result->check    = substr($tracking_number, 17, 1);		// check Digit
			

			$tracking = substr($tracking_number, 2, 15);			// checksum based on this
			$new = '';
			for($i = 0; $i < strlen($tracking); $i++) {
				$ch = $tracking[$i];
				if ($ch >= 'A' && $ch <= 'Z') {
					$ch = ord($ch) - 63;
					$ch = $ch % 10;
				}
				$new .= $ch;
			}
			$tracking = $new;
			
			$total = 0;
			for($i = 0; $i < strlen($tracking); $i++) {
				if ($i & 1) {	// odd
					$total += 2 * $tracking[$i];
				} else {	// even
					$total += $tracking[$i];
				}
			}	
			
			$checkdigit = $total % 10;
			if ($checkdigit > 0) $checkdigit = 10 - $checkdigit;
			$result->valid = $result->check == $checkdigit;
			return $result;
		}
		return NULL;
	}

	public function __tracking_validate(&$result, $tracking_number) {
		if (!is_object($result)) {
			$tracking_number = str_replace(' ', '', $tracking_number);
			if (preg_match('~\b1Z[A-Z0-9]{16}\b~', $tracking_number)) {
				$result = $this->parseTrackingNumber($tracking_number);
			}
		}
	}

}