first commit

class/class.PriceLevel.php

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+<?php
+
+use Query\Operator;
+
+/**
+ * Class representing PriceLevel.
+ *
+ * @author Joe
+ */
+#[AllowDynamicProperties]
+class PriceLevel
+{
+    use DatabaseCommunication;
+
+    /**
+     * Pro Level ID.
+     *
+     * @var int
+     */
+    public $id = -1;
+
+    /**
+     * Product texts.
+     *
+     * @var string
+     */
+    public $name;
+    public $discount = 0;
+    public $discount_discount;
+    public $unit;
+
+    public $sections;
+    public $products;
+    public $producers;
+    public $ranges;
+    public $descr;
+    public $combine;
+
+    public $add = true;
+
+    /**
+     * Constructor.
+     *
+     * @param int $id
+     */
+    public function __construct($id = -1)
+    {
+        $this->id = $id;
+    }
+
+    /**
+     * Fetches data from database, price level ID specified in $id.
+     *
+     * @param int $id
+     *
+     * @return $this
+     */
+    public function createFromDB($id)
+    {
+        $this->id = $id;
+
+        $row = sqlFetchAssoc($this->selectSQL('price_levels', ['id' => $id]));
+        if ($row) {
+            foreach ($row as $key => $value) {
+                $this->$key = $value;
+            }
+        }
+
+        if (!empty($this->combine)) {
+            $this->add = $this->combine != 'N';
+        }
+
+        // ------------------------------------------------------------------
+        // prohleda, jestli k dane cenove hladine jsou urceny slevy k sekcim
+        $this->sections = sqlFetchAll($this->selectSQL('price_levels_sections', ['id_price_level' => $id]), 'id_section');
+
+        // ------------------------------------------------------------------
+        // prohleda, jestli k dane cenove hladine jsou urceny slevy k produktum
+        $this->products = sqlFetchAll($this->selectSQL('price_levels_products', ['id_price_level' => $id]), 'id_product');
+
+        // ------------------------------------------------------------------
+        // prohleda, jestli k dane cenove hladine jsou urceny slevy k vyrobcum
+        $this->producers = sqlFetchAll($this->selectSQL('price_levels_producers', ['id_price_level' => $id]), 'id_producer');
+
+        $this->ranges = $this->getRanges();
+
+        wpj_debug(['discount_discount', $this]);
+
+        return $this;
+    }
+
+    public function getDiscount($IDp = null, $IDcat = null, $IDprod = -1, &$product = null)
+    {
+        if ($product && !toDecimal($product['discount'])->isZero() && !is_null($this->discount_discount)) {
+            return [
+                'discount' => $this->discount_discount,
+                'unit' => $this->unit,
+                'add' => $this->add,
+            ];
+        }
+
+        // urceni slevy podle slevy k produktu
+        if ($IDp && isset($this->products[$IDp])) {
+            return $this->products[$IDp] + ['add' => $this->add];
+        }
+
+        // urceni slevy podle slevy k sekci
+        if ($this->sections) {
+            // pokud neni urcena sekce - dohledat sekci k produktu
+            if ($IDp && is_null($IDcat)) {
+                $IDcat = $product['priceLevelSections'] ?? null;
+                if (is_null($IDcat)) {
+                    $IDcat = $this->selectSQL('products_in_sections', ['id_product' => $IDp], ['id_section'])->fetchAll();
+                    $IDcat = array_column($IDcat, 'id_section');
+                }
+            }
+            if ($IDcat) {
+                $product['priceLevelSections'] = $IDcat;
+                $discount = null;
+                foreach ($IDcat as $cat) {
+                    if (isset($this->sections[$cat])) {
+                        $this->products[$IDp] = $this->mergeDiscounts($discount, $this->sections[$cat]);
+                    }
+                }
+
+                if (isset($this->products[$IDp])) {
+                    return $this->products[$IDp] + ['add' => $this->add];
+                }
+            }
+        }
+
+        // urceni slevy podle vyrobce
+        if ($this->producers) {
+            // urceni slevy podle vyrobce - dohledat vyrobce k produktu
+            // default $IDprod = -1 (ne null), protoze product->producer muze byt null
+            // $IDprod = null znamena ze vyrobce = null a nemusime to fetchovat
+            // $IDprod = -1 znamena ze nebyl vyrobce jeste nafetchovany
+            if ($IDp && ($IDprod == -1)) {
+                $IDprod = $this->selectSQL('products', ['id' => $IDp], ['producer'])->fetchColumn();
+            }
+
+            if ($IDprod && isset($this->producers[$IDprod])) {
+                return $this->producers[$IDprod] + ['add' => $this->add];
+            }
+        }
+
+        // globalni sleva
+        return [
+            'discount' => $this->discount,
+            'unit' => $this->unit,
+            'add' => $this->add,
+        ];
+    }
+
+    protected function getRanges()
+    {
+        if ($this->ranges) {
+            return $this->ranges;
+        }
+
+        return sqlQueryBuilder()
+            ->select('*')
+            ->from('price_levels_ranges')
+            ->where(Operator::equals(['id_price_level' => $this->id]))
+            ->orderBy('range_from')
+            ->execute()
+            ->fetchAll();
+    }
+
+    /**
+     * @return bool or $range
+     */
+    public function getRangeByPrice(Decimal $price)
+    {
+        if (isset($this->ranges)) {
+            foreach ($this->ranges as $range) {
+                if ($price->lowerThan(toDecimal($range['range_to'])) && !$price->lowerThan(toDecimal($range['range_from']))) {
+                    return $range;
+                }
+            }
+        }
+
+        return false;
+    }
+
+    public function mergeDiscounts(&$target, $from)
+    {
+        if (empty($target)) {
+            return $from;
+        }
+
+        if ($from['discount'] > $target['discount'] && $from['unit'] == $target['unit']) {
+            return $from;
+        }
+
+        if ($from['unit'] == 'perc' && $target['unit'] == 'price') {
+            return $from;
+        }
+
+        return $target;
+    }
+
+    public function getName(): string
+    {
+        return $this->name;
+    }
+
+    public function getId(): int
+    {
+        return $this->id;
+    }
+}