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Website : phonehp.ir

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: / home / nehpir / www / wp-content / plugins / woocommersa / includes / Services /

Filename : Profit_Margin_Service.php

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<?php
namespace WooCommersa\Services;

if (!defined('ABSPATH')) exit;

/**
 * Senior Profit & Margin Service
 * Handles precision-critical financial calculations for WooCommerce products.
 */
class Profit_Margin_Service {

    /**
     * Calculate all financial metrics for a product
     * Formula: Margin % = ((Price - EffectiveCost) / Price) * 100
     */
    public function calculate_metrics($product_id) {
        $product = wc_get_product($product_id);
        if (!$product) return false;

        $settings = get_option('woocommersa_settings', []);
        $overhead_percent = floatval($settings['profit_overhead_percent'] ?? 0);

        $price = floatval($product->get_price());
        $cost = floatval(get_post_meta($product_id, '_cost_price', true));
        
        // Stock potential
        $stock = floatval($product->get_stock_quantity() ?: 0);

        if ($price <= 0) {
            return [
                'profit' => 0,
                'margin' => 0,
                'effective_cost' => $cost,
                'revenue_potential' => 0,
                'profit_potential' => 0
            ];
        }

        // Calculation Logic
        $overhead_value = $price * ($overhead_percent / 100);
        $effective_cost = $cost + $overhead_value;
        $profit = $price - $effective_cost;
        $margin = ($profit / $price) * 100;

        $metrics = [
            'profit' => round($profit, 2),
            'margin' => round($margin, 2),
            'effective_cost' => round($effective_cost, 2),
            'revenue_potential' => round($price * $stock, 2),
            'profit_potential' => round($profit * $stock, 2)
        ];

        // Sync to DB for filtering/sorting performance
        $this->sync_to_meta($product_id, $metrics);

        return $metrics;
    }

    /**
     * Persist calculated values to post meta for high-speed SQL queries (sorting/filtering)
     */
    public function sync_to_meta($product_id, $metrics) {
        update_post_meta($product_id, '_profit', $metrics['profit']);
        update_post_meta($product_id, '_margin', $metrics['margin']);
        update_post_meta($product_id, '_profit_potential', $metrics['profit_potential']);
    }

    /**
     * Bulk update margin for a set of products
     * This is an Architectural rule-based update.
     */
    public function apply_bulk_margin($product_ids, $target_margin_percent) {
        $affected = 0;
        foreach ($product_ids as $id) {
            $product = wc_get_product($id);
            if (!$product) continue;

            $cost = floatval(get_post_meta($id, '_cost_price', true));
            if ($cost <= 0) continue;

            $settings = get_option('woocommersa_settings', []);
            $overhead = floatval($settings['profit_overhead_percent'] ?? 0);

            // Back-solve for Price based on target Margin:
            // Margin = (Price - Cost - (Price * OH)) / Price
            // Margin * Price = Price - Cost - (Price * OH)
            // Price - (Price * OH) - (Price * Margin) = Cost
            // Price * (1 - OH - Margin) = Cost
            // Price = Cost / (1 - OH - Margin)
            
            $oh_dec = $overhead / 100;
            $margin_dec = $target_margin_percent / 100;

            if ((1 - $oh_dec - $margin_dec) <= 0) continue; // Division by zero or logic error safety

            $new_price = $cost / (1 - $oh_dec - $margin_dec);
            
            $product->set_regular_price(round($new_price, 0));
            $product->save();
            
            $this->calculate_metrics($id); // Refetch and re-sync
            $affected++;
        }
        return $affected;
    }
}