disco / app / Calc / CalcFixed.php

CalcFixed.php in Discount Rules for WooCommerce – Disco | Dynamic Pricing, Conditions, Bulk, Bundle, BOGO 1.4.14, at app/Calc/CalcFixed.php

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1	<?php
2
3	namespace Disco\App\Calc;
4
5	/**
6	* Class CalcPercent
7	*
8	* @package Disco
9	* @subpackage Disco\App\Calc
10	* @author Ohidul Islam <wahid0003@gmail.com>
11	* @link https://webappick.com
12	* @license https://opensource.org/licenses/gpl-license.php GNU Public License
13	* @category Plugin
14	*/
15	class CalcFixed extends CalcAbstract {
16
17	use \Disco\App\Intents\IntentHelper;
18
19	/**
20	* @var object $cart Cart.
21	* @phpstan-ignore-next-line
22	*/
23	private $cart;
24
25	/**
26	* @var float
27	*/
28	private $discounted_quantities;
29
30	/**
31	* @var string $discount_intent
32	*/
33	private $discount_intent;
34
35	/**
36	* @var array $rule Campaign Rule.
37	*/
38	private $rule;
39
40	/**
41	* @var array $item Cart Item.
42	*/
43	private $item;
44
45	/**
46	* CalcFixed constructor.
47	*
48	* @param array $rule Campaign Rule.
49	* @param array $item Cart Item.
50	* @param \WC_Cart $cart Cart.
51	* @param object $campaign Campaign.
52	*/
53	public function __construct( $rule, $item, $cart, $campaign ) {
54	$this->item = $item;
55	$this->rule = $rule;
56	$this->cart = $cart;
57	// @phpstan-ignore-next-line
58	$this->discount_intent = $campaign->get_discount_intent();
59	}
60
61	public function calculate(): array {
62	$discount = $this->calculate_discount();
63
64	return array(
65	'price' => $this->calculate_price( $discount ),
66	'discount' => $discount,
67	'line_subtotal' => $this->calculate_line_subtotal( $discount ),
68	'discounted_quantities' => $this->discounted_quantities,
69	);
70	}
71
72	/**
73	* Calculate Discount.
74	*
75	* @return float Discount Amount.
76	*/
77	public function calculate_discount(): float { // phpcs:ignore
78	$discount_amount = 0;
79	$fixed_discount = $this->rule['discount_value'];
80	$quantity = (int) $this->item['quantity'];
81
82	/**
83	* "Count Quantity As" combined / variations: a fixed amount is a flat
84	* line discount, so eligibility (any eligible unit) gates it once rather
85	* than scaling with the eligible unit count.
86	*/
87	if ( isset( $this->item['disco_forced_qty'] ) ) {
88	$forced = max( 0, (int) $this->item['disco_forced_qty'] );
89	$this->discounted_quantities = $forced;
90
91	return apply_filters( 'disco_final_discounted_amount', $forced > 0 ? (float) $fixed_discount : 0, 'fixed' );
92	}
93
94	$min = $this->rule['min'] ? (int) $this->rule['min'] : 0; // phpcs:ignore
95	$max = $this->rule['max'] ? (int) $this->rule['max'] : 0; // phpcs:ignore
96	$recursive = isset( $this->rule['recursive'] ) && 'yes' === $this->rule['recursive']; // phpcs:ignore
97	$item_id = $this->item['product_id'];
98	$rule_ids = array_column( $this->rule['get_ids'], 'id' );
99	$discount_qty = $this->rule['get_quantity'] ? (int) $this->rule['get_quantity'] : 0; // phpcs:ignore
100
101	// Default discount for quantities.
102	$discount_for_quantities = $min;
103
104	/**
105	* Bulk / range capping — only when NOT recursive. Recursive rules ignore
106	* max: the bundle size is always min, so the qualifying quantity must not
107	* be capped to max here, otherwise floor( qty / base ) would divide by
108	* max instead of min and undercount the bundles.
109	*/
110	if ( ! $recursive && $max && $quantity >= $max ) {
111	$discount_for_quantities = $max;
112	}
113
114	// If quantity between min and max then apply discount.
115	if ( ! $recursive && $quantity >= $min && $quantity <= $max ) {
116	$discount_for_quantities = $quantity;
117	}
118
119	// Apply for the Bundle & BOGO Discount when recursive is set.
120	$multiplier = 1;
121
122	/**
123	* If discount intent is BuyXGetY then set the discount for quantities to 1.
124	* This is to ensure that the discount for selected item for BOGO discount.
125	* Here no need to check for min and max quantity.
126	*/
127	if (
128	$this->discount_intent === 'BuyXGetY'
129	&& ! empty( $rule_ids )
130	&& (
131	in_array( $item_id, $rule_ids, true )
132	\|\| $this->is_in_category( $item_id, $rule_ids )
133	)
134	) {
135	$discount_for_quantities = $discount_qty;
136	$multiplier = $discount_qty;
137	}
138
139	if ( $recursive && $min > 0 && $quantity >= $min ) {
140	/**
141	* Recursive: the number of bundles is floor( qty / min ). Divide by
142	* min, never by $discount_for_quantities — for BuyXGetY the latter
143	* holds the reward quantity (get_quantity) and would inflate the
144	* multiplier (e.g. buy 2 get 1 with 2 in cart → 1 bundle, not 2).
145	*/
146	$multiplier = (int) floor( $quantity / $min );
147	$discount_for_quantities *= $multiplier;
148	}
149
150	// Limit discount to Min or Max quantity.
151	if ( $quantity >= $discount_for_quantities ) {
152	$discount_amount = $fixed_discount * $multiplier;
153	}
154
155	$this->discounted_quantities = $discount_for_quantities;
156
157	return apply_filters( 'disco_final_discounted_amount', $discount_amount, 'fixed' );
158	}
159
160	/**
161	* Calculate Price.
162	*
163	* @param float $discount Discount Amount.
164	* @return float Price.
165	*/
166	public function calculate_price( $discount ): float {
167	$discounted_subtotal = $this->calculate_line_subtotal( $discount );
168
169	return $discounted_subtotal / $this->item['quantity'];
170	}
171
172	/**
173	* Calculate Line Subtotal.
174	*
175	* @param float $discount Discount Amount.
176	* @return float Line Subtotal.
177	*/
178	public function calculate_line_subtotal( $discount ): float {
179	if ( isset( $this->item['line_subtotal'] ) ) {
180	return $this->item['line_subtotal'] - $discount;
181	}
182
183	return 0.0;
184	}
185
186	}
187