186 lines
8.6 KiB
PHP
186 lines
8.6 KiB
PHP
<?php
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/**
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* 前端：产品页订阅选项渲染、加入购物车的校验与价格计算。
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*/
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defined('ABSPATH') || exit;
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class Yoone_Subscriptions_Frontend {
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protected static $instance = null;
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public static function instance() {
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if (null === self::$instance) self::$instance = new self();
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return self::$instance;
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}
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private function __construct() {
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// 在简单产品的 add-to-cart 区域前渲染订阅选项
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add_action('woocommerce_before_add_to_cart_button', array($this, 'render_subscription_options'));
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// 校验与存储购物车项数据
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add_filter('woocommerce_add_to_cart_validation', array($this, 'validate_add_to_cart'), 10, 6);
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add_filter('woocommerce_add_cart_item_data', array($this, 'add_cart_item_data'), 10, 3);
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// 展示购物车/订单中的订阅摘要
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add_filter('woocommerce_get_item_data', array($this, 'display_item_data'), 10, 2);
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// 动态设置行项目价格
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add_action('woocommerce_before_calculate_totals', array($this, 'adjust_subscription_price'), 20, 1);
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}
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/**
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* 渲染订阅选择 UI（产品页）。
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*/
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public function render_subscription_options() {
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global $product;
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if (! $product || ! is_a($product, 'WC_Product')) return;
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$cfg = Yoone_Subscriptions::get_config($product);
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if (! $cfg['enabled']) return; // 未开启订阅
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// 前端样式/脚本
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wp_enqueue_style('yoone-subs-frontend');
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wp_enqueue_script('yoone-subs-frontend');
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$regular_price = floatval($product->get_price());
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$sub_price = $cfg['price'] > 0 ? $cfg['price'] : $regular_price;
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$discount = ($regular_price > 0 && $sub_price < $regular_price) ? (1 - $sub_price / $regular_price) * 100.0 : 0.0;
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// 简单模板输出（不使用专门模板文件，保持轻量）
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echo '<div class="yoone-subs-block">';
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echo '<h3>' . esc_html__('订阅选项', 'yoone-subscriptions') . '</h3>';
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// 一次性 vs 订阅
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if ($cfg['allow_onetime']) {
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echo '<p><label><input type="radio" name="yoone_sub_purchase_mode" value="onetime" checked> ' . esc_html__('一次性购买', 'yoone-subscriptions') . '</label></p>';
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echo '<p><label><input type="radio" name="yoone_sub_purchase_mode" value="subscribe"> ' . esc_html__('订阅购买', 'yoone-subscriptions') . '</label></p>';
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} else {
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echo '<input type="hidden" name="yoone_sub_purchase_mode" value="subscribe" />';
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}
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// 周期选择
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echo '<p class="yoone-subs-row">'
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. '<label>' . esc_html__('订阅周期', 'yoone-subscriptions') . '</label> '
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. '<select name="yoone_sub_period">'
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. '<option value="month"' . selected($cfg['period'], 'month', false) . '>' . esc_html__('月', 'yoone-subscriptions') . '</option>'
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. '<option value="year"' . selected($cfg['period'], 'year', false) . '>' . esc_html__('年', 'yoone-subscriptions') . '</option>'
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. '</select>'
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. '</p>';
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// 数量输入
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echo '<p class="yoone-subs-row">'
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. '<label>' . esc_html__('订阅数量', 'yoone-subscriptions') . '</label> '
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. '<input type="number" name="yoone_sub_quantity" min="1" step="1" value="' . esc_attr($cfg['qty_default']) . '" />'
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. '</p>';
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// 价格与折扣展示（每周期价格）
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echo '<p class="yoone-subs-price">'
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. esc_html__('订阅价格（每周期）：', 'yoone-subscriptions')
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. wc_price($sub_price)
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. ($discount > 0 ? ' <span class="yoone-subs-discount">' . sprintf(esc_html__('折扣约 %.1f%%', 'yoone-subscriptions'), $discount) . '</span>' : '')
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. '</p>';
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echo '</div>';
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}
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/**
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* 校验加入购物车的订阅参数。
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*/
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public function validate_add_to_cart($passed, $product_id, $quantity, $variation_id, $variations, $cart_item_data) {
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$product = wc_get_product($product_id);
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if (! $product) return $passed;
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$cfg = Yoone_Subscriptions::get_config($product);
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if (! $cfg['enabled']) return $passed;
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$mode = isset($_POST['yoone_sub_purchase_mode']) ? sanitize_text_field($_POST['yoone_sub_purchase_mode']) : '';
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if ($cfg['allow_onetime'] && $mode === 'onetime') return $passed; // 一次性购买，无需校验订阅参数
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$period = isset($_POST['yoone_sub_period']) ? sanitize_text_field($_POST['yoone_sub_period']) : $cfg['period'];
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$qty = isset($_POST['yoone_sub_quantity']) ? absint($_POST['yoone_sub_quantity']) : $cfg['qty_default'];
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$period = in_array($period, array('month','year'), true) ? $period : $cfg['period'];
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$qty = max(1, $qty);
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if ($mode !== 'subscribe' && ! $cfg['allow_onetime']) {
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wc_add_notice(__('该产品仅支持订阅购买。', 'yoone-subscriptions'), 'error');
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return false;
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}
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// 可根据需要扩展更多校验（库存、最大值等）
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return $passed;
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}
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/**
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* 将订阅参数写入购物车项。
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*/
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public function add_cart_item_data($cart_item_data, $product_id, $variation_id) {
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$product = wc_get_product($product_id);
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if (! $product) return $cart_item_data;
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$cfg = Yoone_Subscriptions::get_config($product);
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if (! $cfg['enabled']) return $cart_item_data;
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$mode = isset($_POST['yoone_sub_purchase_mode']) ? sanitize_text_field($_POST['yoone_sub_purchase_mode']) : '';
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$period = isset($_POST['yoone_sub_period']) ? sanitize_text_field($_POST['yoone_sub_period']) : $cfg['period'];
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$qty = isset($_POST['yoone_sub_quantity']) ? absint($_POST['yoone_sub_quantity']) : $cfg['qty_default'];
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$period = in_array($period, array('month','year'), true) ? $period : $cfg['period'];
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$qty = max(1, $qty);
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if ($cfg['allow_onetime'] && $mode === 'onetime') {
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// 标记为一次性购买，便于显示
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$cart_item_data['yoone_subscriptions'] = array(
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'mode' => 'onetime',
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);
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return $cart_item_data;
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}
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$cart_item_data['yoone_subscriptions'] = array(
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'mode' => 'subscribe',
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'period' => $period,
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'qty' => $qty,
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'price' => ($cfg['price'] > 0 ? $cfg['price'] : floatval($product->get_price())), // 每周期价格
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);
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return $cart_item_data;
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}
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/**
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* 购物车/订单行项目中展示订阅摘要。
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*/
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public function display_item_data($item_data, $cart_item) {
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if (empty($cart_item['yoone_subscriptions'])) return $item_data;
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$data = $cart_item['yoone_subscriptions'];
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if ($data['mode'] === 'onetime') {
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$item_data[] = array('key' => __('购买方式', 'yoone-subscriptions'), 'value' => __('一次性购买', 'yoone-subscriptions'));
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return $item_data;
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}
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$period_label = $data['period'] === 'year' ? __('年', 'yoone-subscriptions') : __('月', 'yoone-subscriptions');
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$item_data[] = array('key' => __('购买方式', 'yoone-subscriptions'), 'value' => __('订阅', 'yoone-subscriptions'));
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$item_data[] = array('key' => __('周期', 'yoone-subscriptions'), 'value' => $period_label);
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$item_data[] = array('key' => __('订阅数量', 'yoone-subscriptions'), 'value' => intval($data['qty']));
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$item_data[] = array('key' => __('订阅价格（每周期）', 'yoone-subscriptions'), 'value' => wc_price(floatval($data['price'])));
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return $item_data;
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}
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/**
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* 根据订阅规则设置行项目价格：价格 = 每周期价格 × 周期系数 × 订阅数量 × 购物车数量。
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*/
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public function adjust_subscription_price($cart) {
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if (is_admin() && ! defined('DOING_AJAX')) return;
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if (empty($cart) || ! method_exists($cart, 'get_cart')) return;
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foreach ($cart->get_cart() as $key => $item) {
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if (empty($item['yoone_subscriptions'])) continue;
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$data = $item['yoone_subscriptions'];
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if ($data['mode'] !== 'subscribe') continue;
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$product = isset($item['data']) ? $item['data'] : null;
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if (! $product || ! is_a($product, 'WC_Product')) continue;
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$price_per_cycle = floatval($data['price']);
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$factor = Yoone_Subscriptions::period_factor($data['period']);
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$sub_qty = absint($data['qty']);
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$cart_qty = absint(isset($item['quantity']) ? $item['quantity'] : 1);
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$line_price = $price_per_cycle * $factor * $sub_qty * $cart_qty;
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$product->set_price($line_price);
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}
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}
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} |