GetPaid_Payment_Form_Submission_Discount::calculate_discount() - Code Metrics - AyeCode/invoicing - Measure and Improve Code Quality continuously with Scrutinizer

calculate_discount() A
last analyzed 2025-08-28 15:29 UTC

↳ Parent: GetPaid_Payment_Form_Submission_Discount

Complexity

Conditions	1
Paths	1

Size

Total Lines	2
Code Lines	1

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	1
eloc	1
c	0
b	0
f	0
nc	1
nop	2
dl	0
loc	2
rs	10

<?php
/**
 * Processes discounts for a payment form submission.
 *
 */

defined( 'ABSPATH' ) || exit;

/**
 * Payment form submission discount class
 *
 */
class GetPaid_Payment_Form_Submission_Discount {

	/**
	 * Submission discounts.
	 * @var array
	 */
	public $discounts = array();

    /**
	 * Class constructor
	 *
	 * @param GetPaid_Payment_Form_Submission $submission
	 * @param float                           $initial_total
	 * @param float                           $recurring_total
	 */
	public function __construct( $submission, $initial_total, $recurring_total ) {

		// Process any existing invoice discounts.
		if ( $submission->has_invoice() ) {
			$this->discounts = $submission->get_invoice()->get_discounts();
		}

		// Do we have a discount?
		$discount = $submission->get_field( 'discount' );
class A
{
    function getObject()
    {
        return null;
    }

}

$a = new A();
$object = $a->getObject();

		if ( empty( $discount ) ) {

			if ( isset( $this->discounts['discount_code'] ) ) {
				unset( $this->discounts['discount_code'] );
			}

			return;
		}

		// Processes the discount code.
		$amount = max( $initial_total, $recurring_total );
		$this->process_discount( $submission, $discount, $amount );

	}

	/**
	 * Processes a submission discount.
	 *
	 * @param GetPaid_Payment_Form_Submission $submission
	 * @param string                          $discount
	 * @param float                           $amount
	 */
	public function process_discount( $submission, $discount, $amount ) {

		// Fetch the discount.
		$discount = new WPInv_Discount( $discount );

		// Ensure it is active.
        if ( ! $this->is_discount_active( $discount ) ) {
			throw new GetPaid_Payment_Exception( '.getpaid-discount-field .getpaid-custom-payment-form-errors', __( 'Invalid or expired discount code', 'invoicing' ) );
		}

		// Required items.
		if ( ! $discount->is_required_items_met( array_keys( $submission->get_items() ) ) ) {
			throw new GetPaid_Payment_Exception( '.getpaid-discount-field .getpaid-custom-payment-form-errors', __( 'You are not allowed to use this discount code.', 'invoicing' ) );
		}

		// Exceeded limit.
		if ( $discount->has_exceeded_limit() ) {
			throw new GetPaid_Payment_Exception( '.getpaid-discount-field .getpaid-custom-payment-form-errors', __( 'This discount code has been used up', 'invoicing' ) );
		}

		// Validate usages.
		$this->validate_single_use_discount( $submission, $discount );

		// Validate amount.
		$this->validate_discount_amount( $submission, $discount, $amount );

		// Save the discount.
		$this->discounts['discount_code'] = $this->calculate_discount( $submission, $discount );
	}

	/**
	 * Validates a single use discount.
	 *
	 * @param WPInv_Discount                  $discount
	 * @return bool
	 */
	public function is_discount_active( $discount ) {
		return $discount->exists() && $discount->is_active() && $discount->has_started() && ! $discount->is_expired();
	}

	/**
	 * Returns a user's id or email.
	 *
	 * @param string $email
	 * @return int|string|false
	 */
	public function get_user_id_or_email( $email ) {

		if ( is_user_logged_in() ) {
			return get_current_user_id();
		}

		return empty( $email ) ? false : sanitize_email( $email );
	}

	/**
	 * Validates a single use discount.
	 *
	 * @param GetPaid_Payment_Form_Submission $submission
	 * @param WPInv_Discount                  $discount
	 */
	public function validate_single_use_discount( $submission, $discount ) {

		// Abort if it is not a single use discount.
		if ( ! $discount->is_single_use() ) {
			return;
		}

		// Ensure there is a valid billing email.
		$user = $this->get_user_id_or_email( $submission->get_billing_email() );

		if ( empty( $user ) ) {
			throw new GetPaid_Payment_Exception( '.getpaid-discount-field .getpaid-custom-payment-form-errors', __( 'You need to either log in or enter your billing email before applying this discount', 'invoicing' ) );
		}

		// Has the user used this discount code before?
		if ( ! $discount->is_valid_for_user( $user ) ) {
			throw new GetPaid_Payment_Exception( '.getpaid-discount-field .getpaid-custom-payment-form-errors', __( 'You have already used this discount', 'invoicing' ) );
		}

	}

	/**
	 * Validates the discount's amount.
	 *
	 * @param GetPaid_Payment_Form_Submission $submission
	 * @param WPInv_Discount         $discount
	 * @param float                  $amount
	 */
	public function validate_discount_amount( $submission, $discount, $amount ) {

		// Validate minimum amount.
		if ( ! $discount->is_minimum_amount_met( $amount ) ) {
			$min = wpinv_price( $discount->get_minimum_total(), $submission->get_currency() );
			throw new GetPaid_Payment_Exception( '.getpaid-discount-field .getpaid-custom-payment-form-errors', sprintf( __( 'The minimum total for using this discount is %s', 'invoicing' ), $min ) );
		}

		// Validate the maximum amount.
		if ( ! $discount->is_maximum_amount_met( $amount ) ) {
			$max = wpinv_price( $discount->get_maximum_total(), $submission->get_currency() );
			throw new GetPaid_Payment_Exception( '.getpaid-discount-field .getpaid-custom-payment-form-errors', sprintf( __( 'The maximum total for using this discount is %s', 'invoicing' ), $max ) );
		}

	}

	/**
	 * Calculates the discount code's amount.
	 *
	 * Ensure that the discount exists and has been validated before calling this method.
	 *
	 * @param GetPaid_Payment_Form_Submission $submission
	 * @param WPInv_Discount                  $discount
	 * @return array
	 */
	public function calculate_discount( $submission, $discount ) {
		return getpaid_calculate_invoice_discount( $submission, $discount );
	}

}


1			<?php
2			/**
3			* Processes discounts for a payment form submission.
4			*
5			*/
6
7			defined( 'ABSPATH' ) \|\| exit;
8
9			/**
10			* Payment form submission discount class
11			*
12			*/
13			class GetPaid_Payment_Form_Submission_Discount {
14
15			/**
16			* Submission discounts.
17			* @var array
18			*/
19			public $discounts = array();
20
21			/**
22			* Class constructor
23			*
24			* @param GetPaid_Payment_Form_Submission $submission
25			* @param float $initial_total
26			* @param float $recurring_total
27			*/
28			public function __construct( $submission, $initial_total, $recurring_total ) {
29
30			// Process any existing invoice discounts.
31			if ( $submission->has_invoice() ) {
32			$this->discounts = $submission->get_invoice()->get_discounts();
33			}
34
35			// Do we have a discount?
36			$discount = $submission->get_field( 'discount' );
			0 ignored issues – show Bug introduced 2020-11-06 11:40 UTC by Report Bug Copy Issue Report Are you sure the assignment to `$discount` is correct as `$submission->get_field('discount')` targeting `GetPaid_Payment_Form_Submission::get_field()` seems to always return null. This check looks for function or method calls that always return null and whose return value is assigned to a variable. class A { function getObject() { return null; } } $a = new A(); $object = $a->getObject(); The method `getObject()` can return nothing but null, so it makes no sense to assign that value to a variable. The reason is most likely that a function or method is imcomplete or has been reduced for debug purposes. Loading history...
37
38			if ( empty( $discount ) ) {
39
40			if ( isset( $this->discounts['discount_code'] ) ) {
41			unset( $this->discounts['discount_code'] );
42			}
43
44			return;
45			}
46
47			// Processes the discount code.
48			$amount = max( $initial_total, $recurring_total );
49			$this->process_discount( $submission, $discount, $amount );
50
51			}
52
53			/**
54			* Processes a submission discount.
55			*
56			* @param GetPaid_Payment_Form_Submission $submission
57			* @param string $discount
58			* @param float $amount
59			*/
60			public function process_discount( $submission, $discount, $amount ) {
61
62			// Fetch the discount.
63			$discount = new WPInv_Discount( $discount );
64
65			// Ensure it is active.
66			if ( ! $this->is_discount_active( $discount ) ) {
67			throw new GetPaid_Payment_Exception( '.getpaid-discount-field .getpaid-custom-payment-form-errors', __( 'Invalid or expired discount code', 'invoicing' ) );
68			}
69
70			// Required items.
71			if ( ! $discount->is_required_items_met( array_keys( $submission->get_items() ) ) ) {
72			throw new GetPaid_Payment_Exception( '.getpaid-discount-field .getpaid-custom-payment-form-errors', __( 'You are not allowed to use this discount code.', 'invoicing' ) );
73			}
74
75			// Exceeded limit.
76			if ( $discount->has_exceeded_limit() ) {
77			throw new GetPaid_Payment_Exception( '.getpaid-discount-field .getpaid-custom-payment-form-errors', __( 'This discount code has been used up', 'invoicing' ) );
78			}
79
80			// Validate usages.
81			$this->validate_single_use_discount( $submission, $discount );
82
83			// Validate amount.
84			$this->validate_discount_amount( $submission, $discount, $amount );
85
86			// Save the discount.
87			$this->discounts['discount_code'] = $this->calculate_discount( $submission, $discount );
88			}
89
90			/**
91			* Validates a single use discount.
92			*
93			* @param WPInv_Discount $discount
94			* @return bool
95			*/
96			public function is_discount_active( $discount ) {
97			return $discount->exists() && $discount->is_active() && $discount->has_started() && ! $discount->is_expired();
98			}
99
100			/**
101			* Returns a user's id or email.
102			*
103			* @param string $email
104			* @return int\|string\|false
105			*/
106			public function get_user_id_or_email( $email ) {
107
108			if ( is_user_logged_in() ) {
109			return get_current_user_id();
110			}
111
112			return empty( $email ) ? false : sanitize_email( $email );
113			}
114
115			/**
116			* Validates a single use discount.
117			*
118			* @param GetPaid_Payment_Form_Submission $submission
119			* @param WPInv_Discount $discount
120			*/
121			public function validate_single_use_discount( $submission, $discount ) {
122
123			// Abort if it is not a single use discount.
124			if ( ! $discount->is_single_use() ) {
125			return;
126			}
127
128			// Ensure there is a valid billing email.
129			$user = $this->get_user_id_or_email( $submission->get_billing_email() );
130
131			if ( empty( $user ) ) {
132			throw new GetPaid_Payment_Exception( '.getpaid-discount-field .getpaid-custom-payment-form-errors', __( 'You need to either log in or enter your billing email before applying this discount', 'invoicing' ) );
133			}
134
135			// Has the user used this discount code before?
136			if ( ! $discount->is_valid_for_user( $user ) ) {
137			throw new GetPaid_Payment_Exception( '.getpaid-discount-field .getpaid-custom-payment-form-errors', __( 'You have already used this discount', 'invoicing' ) );
138			}
139
140			}
141
142			/**
143			* Validates the discount's amount.
144			*
145			* @param GetPaid_Payment_Form_Submission $submission
146			* @param WPInv_Discount $discount
147			* @param float $amount
148			*/
149			public function validate_discount_amount( $submission, $discount, $amount ) {
150
151			// Validate minimum amount.
152			if ( ! $discount->is_minimum_amount_met( $amount ) ) {
153			$min = wpinv_price( $discount->get_minimum_total(), $submission->get_currency() );
154			throw new GetPaid_Payment_Exception( '.getpaid-discount-field .getpaid-custom-payment-form-errors', sprintf( __( 'The minimum total for using this discount is %s', 'invoicing' ), $min ) );
155			}
156
157			// Validate the maximum amount.
158			if ( ! $discount->is_maximum_amount_met( $amount ) ) {
159			$max = wpinv_price( $discount->get_maximum_total(), $submission->get_currency() );
160			throw new GetPaid_Payment_Exception( '.getpaid-discount-field .getpaid-custom-payment-form-errors', sprintf( __( 'The maximum total for using this discount is %s', 'invoicing' ), $max ) );
161			}
162
163			}
164
165			/**
166			* Calculates the discount code's amount.
167			*
168			* Ensure that the discount exists and has been validated before calling this method.
169			*
170			* @param GetPaid_Payment_Form_Submission $submission
171			* @param WPInv_Discount $discount
172			* @return array
173			*/
174			public function calculate_discount( $submission, $discount ) {
175			return getpaid_calculate_invoice_discount( $submission, $discount );
176			}
177
178			}
179

AyeCode / invoicing

calculate_discount() A last analyzed 2025-08-28 15:29 UTC

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calculate_discount() A
last analyzed 2025-08-28 15:29 UTC