在当今电子商务环境中，动态定价策略已成为提升竞争力的关键手段。对于使用WordPress的商家来说，实现智能报价与动态定价功能可以显著提高销售转化率和利润率。本教程将指导您开发一个轻量级WordPress插件，实现小批量定制产品的智能报价与动态定价功能。

我们的插件将实现以下核心功能：

1. 根据产品数量自动计算折扣
2. 考虑用户类型（新客户、VIP客户等）提供差异化定价
3. 基于时间因素的动态定价（促销时段、季节性调整）
4. 实时报价显示与更新
5. 与WooCommerce的无缝集成

首先，我们创建插件的基本文件结构：

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smart-pricing-plugin/
├── smart-pricing.php          # 主插件文件
├── includes/
│   ├── class-pricing-engine.php
│   ├── class-ajax-handler.php
│   └── class-admin-settings.php
├── assets/
│   ├── css/
│   │   └── frontend.css
│   └── js/
│       └── frontend.js
└── templates/
    └── pricing-display.php

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<?php
/**
 * Plugin Name: 智能报价与动态定价插件
 * Plugin URI:  https://yourwebsite.com/
 * Description: 为WordPress网站提供小批量定制产品的智能报价与动态定价功能
 * Version:     1.0.0
 * Author:      您的名称
 * License:     GPL v2 or later
 * Text Domain: smart-pricing
 */

// 防止直接访问
if (!defined('ABSPATH')) {
    exit;
}

// 定义插件常量
define('SMART_PRICING_VERSION', '1.0.0');
define('SMART_PRICING_PLUGIN_DIR', plugin_dir_path(__FILE__));
define('SMART_PRICING_PLUGIN_URL', plugin_dir_url(__FILE__));

// 自动加载类文件
spl_autoload_register(function ($class_name) {
    if (strpos($class_name, 'SmartPricing_') === 0) {
        $file = SMART_PRICING_PLUGIN_DIR . 'includes/class-' . strtolower(str_replace('_', '-', $class_name)) . '.php';
        if (file_exists($file)) {
            require_once $file;
        }
    }
});

// 初始化插件
function smart_pricing_init() {
    // 检查WooCommerce是否激活
    if (!class_exists('WooCommerce')) {
        add_action('admin_notices', function() {
            echo '<div class="notice notice-error"><p>智能报价插件需要WooCommerce支持，请先安装并激活WooCommerce插件。</p></div>';
        });
        return;
    }
    
    // 初始化核心类
    SmartPricing_Pricing_Engine::get_instance();
    SmartPricing_Ajax_Handler::get_instance();
    
    if (is_admin()) {
        SmartPricing_Admin_Settings::get_instance();
    }
}
add_action('plugins_loaded', 'smart_pricing_init');

// 激活插件时的操作
register_activation_hook(__FILE__, 'smart_pricing_activate');
function smart_pricing_activate() {
    // 创建必要的数据库表
    global $wpdb;
    $charset_collate = $wpdb->get_charset_collate();
    $table_name = $wpdb->prefix . 'smart_pricing_rules';
    
    $sql = "CREATE TABLE IF NOT EXISTS $table_name (
        id mediumint(9) NOT NULL AUTO_INCREMENT,
        rule_name varchar(100) NOT NULL,
        min_quantity int NOT NULL DEFAULT 0,
        max_quantity int NOT NULL DEFAULT 9999,
        discount_type enum('percentage','fixed') DEFAULT 'percentage',
        discount_value decimal(10,2) NOT NULL,
        user_role varchar(50) DEFAULT '',
        start_date datetime DEFAULT NULL,
        end_date datetime DEFAULT NULL,
        is_active tinyint(1) DEFAULT 1,
        PRIMARY KEY (id)
    ) $charset_collate;";
    
    require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
    dbDelta($sql);
    
    // 添加默认定价规则
    $default_rules = array(
        array(
            'rule_name' => '小批量折扣',
            'min_quantity' => 10,
            'max_quantity' => 50,
            'discount_type' => 'percentage',
            'discount_value' => 5.00,
            'user_role' => '',
        ),
        array(
            'rule_name' => '中批量折扣',
            'min_quantity' => 51,
            'max_quantity' => 200,
            'discount_type' => 'percentage',
            'discount_value' => 10.00,
            'user_role' => '',
        ),
        array(
            'rule_name' => 'VIP客户折扣',
            'min_quantity' => 1,
            'max_quantity' => 9999,
            'discount_type' => 'percentage',
            'discount_value' => 15.00,
            'user_role' => 'vip_customer',
        ),
    );
    
    foreach ($default_rules as $rule) {
        $wpdb->insert($table_name, $rule);
    }
}
?>

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<?php
/**
 * 智能定价引擎类
 * 负责计算动态价格和折扣
 */
class SmartPricing_Pricing_Engine {
    
    private static $instance = null;
    private $pricing_rules = array();
    
    public static function get_instance() {
        if (null === self::$instance) {
            self::$instance = new self();
        }
        return self::$instance;
    }
    
    private function __construct() {
        $this->load_pricing_rules();
        add_filter('woocommerce_product_get_price', array($this, 'calculate_dynamic_price'), 10, 2);
        add_filter('woocommerce_product_variation_get_price', array($this, 'calculate_dynamic_price'), 10, 2);
        add_action('woocommerce_before_calculate_totals', array($this, 'apply_cart_discounts'));
    }
    
    /**
     * 从数据库加载定价规则
     */
    private function load_pricing_rules() {
        global $wpdb;
        $table_name = $wpdb->prefix . 'smart_pricing_rules';
        $this->pricing_rules = $wpdb->get_results(
            "SELECT * FROM $table_name WHERE is_active = 1",
            ARRAY_A
        );
    }
    
    /**
     * 计算动态价格
     * @param float $price 原始价格
     * @param WC_Product $product 产品对象
     * @return float 计算后的价格
     */
    public function calculate_dynamic_price($price, $product) {
        // 只在特定页面应用动态定价
        if (is_admin() && !defined('DOING_AJAX')) {
            return $price;
        }
        
        // 获取当前用户信息
        $user_id = get_current_user_id();
        $user_roles = $user_id ? wp_get_current_user()->roles : array('guest');
        
        // 获取产品数量（从购物车或通过AJAX传递）
        $quantity = $this->get_product_quantity($product->get_id());
        
        // 应用定价规则
        $adjusted_price = $this->apply_pricing_rules($price, $quantity, $user_roles);
        
        return max($adjusted_price, 0); // 确保价格不为负
    }
    
    /**
     * 获取产品数量
     * @param int $product_id 产品ID
     * @return int 产品数量
     */
    private function get_product_quantity($product_id) {
        $quantity = 1; // 默认数量
        
        // 从购物车获取数量
        if (WC()->cart && !WC()->cart->is_empty()) {
            foreach (WC()->cart->get_cart() as $cart_item) {
                if ($cart_item['product_id'] == $product_id) {
                    $quantity = $cart_item['quantity'];
                    break;
                }
            }
        }
        
        // 允许通过AJAX覆盖数量
        if (defined('DOING_AJAX') && DOING_AJAX && isset($_POST['quantity'])) {
            $quantity = intval($_POST['quantity']);
        }
        
        return $quantity;
    }
    
    /**
     * 应用定价规则
     * @param float $base_price 基础价格
     * @param int $quantity 数量
     * @param array $user_roles 用户角色
     * @return float 调整后的价格
     */
    private function apply_pricing_rules($base_price, $quantity, $user_roles) {
        $best_price = $base_price;
        $current_time = current_time('mysql');
        
        foreach ($this->pricing_rules as $rule) {
            // 检查数量范围
            if ($quantity < $rule['min_quantity'] || $quantity > $rule['max_quantity']) {
                continue;
            }
            
            // 检查用户角色
            if (!empty($rule['user_role']) && !in_array($rule['user_role'], $user_roles)) {
                continue;
            }
            
            // 检查时间有效性
            if ($rule['start_date'] && $rule['start_date'] > $current_time) {
                continue;
            }
            if ($rule['end_date'] && $rule['end_date'] < $current_time) {
                continue;
            }
            
            // 计算折扣价格
            $discounted_price = $this->calculate_discount($base_price, $rule);
            
            // 选择最优价格（最低价格）
            if ($discounted_price < $best_price) {
                $best_price = $discounted_price;
            }
        }
        
        return $best_price;
    }
    
    /**
     * 计算折扣
     * @param float $price 原始价格
     * @param array $rule 定价规则
     * @return float 折扣后价格
     */
    private function calculate_discount($price, $rule) {
        if ($rule['discount_type'] == 'percentage') {
            $discount = $price * ($rule['discount_value'] / 100);
            return $price - $discount;
        } else {
            return max($price - $rule['discount_value'], 0);
        }
    }
    
    /**
     * 应用购物车折扣
     * @param WC_Cart $cart 购物车对象
     */
    public function apply_cart_discounts($cart) {
        if (is_admin() && !defined('DOING_AJAX')) {
            return;
        }
        
        // 这里可以添加购物车级别的折扣逻辑
        // 例如：基于总金额的折扣或组合产品折扣
    }
}
?>

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<?php
/**
 * AJAX请求处理器
 * 处理前端实时报价请求
 */
class SmartPricing_Ajax_Handler {
    
    private static $instance = null;
    
    public static function get_instance() {
        if (null === self::$instance) {
            self::$instance = new self();
        }
        return self::$instance;
    }
    
    private function __construct() {
        add_action('wp_ajax_get_dynamic_price', array($this, 'get_dynamic_price_ajax'));
        add_action('wp_ajax_nopriv_get_dynamic_price', array($this, 'get_dynamic_price_ajax'));
    }
    
    /**
     * 处理动态价格AJAX请求
     */
    public function get_dynamic_price_ajax() {
        // 验证nonce
        if (!check_ajax_referer('smart_pricing_nonce', 'security', false)) {
            wp_die('安全验证失败');
        }
        
        // 获取请求参数
        $product_id = intval($_POST['product_id']);
        $quantity = intval($_POST['quantity']);
        
        // 验证参数
        if ($product_id <= 0 || $quantity <= 0) {
            wp_send_json_error('参数无效');
        }
        
        // 获取产品
        $product = wc_get_product($product_id);
        if (!$product) {
            wp_send_json_error('产品不存在');
        }
        
        // 获取基础价格
        $base_price = $product->get_price();
        
        // 创建临时定价引擎实例
        $pricing_engine = SmartPricing_Pricing_Engine::get_instance();
        
        // 使用反射调用私有方法（实际应用中应优化此部分）
        $reflection = new ReflectionClass($pricing_engine);
        $method = $reflection->getMethod('apply_pricing_rules');
        $method->setAccessible(true);
        
        // 获取用户角色
        $user_id = get_current_user_id();
        $user_roles = $user_id ? wp_get_current_user()->roles : array('guest');
        
        // 计算动态价格
        $dynamic_price = $method->invoke($pricing_engine, $base_price, $quantity, $user_roles);
        
        // 计算节省金额
        $savings = $base_price * $quantity - $dynamic_price * $quantity;
        
        // 准备响应数据
        $response = array(
            'success' => true,
            'data' => array(
                'base_price' => wc_price($base_price),
                'dynamic_price' => wc_price($dynamic_price),
                'total_base' => wc_price($base_price * $quantity),
                'total_dynamic' => wc_price($dynamic_price * $quantity),
                'savings' => wc_price($savings),
                'savings_percentage' => $base_price > 0 ? round(($savings / ($base_price * $quantity)) * 100, 2) : 0,
                'quantity' => $quantity,
            ),
        );
        
        wp_send_json($response);
    }
}
?>

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/**
 * 前端动态报价交互
 */
jQuery(document).ready(function($) {
    
    // 初始化报价计算器
    function initPricingCalculator() {
        $('.smart-pricing-calculator').each(function() {
            var $calculator = $(this);
            var productId = $calculator.data('product-id');
            var basePrice = $calculator.data('base-price');
            
            // 创建数量输入
            var $quantityInput = $('<input>', {
                type: 'number',
                min: 1,
                value: 1,
                class: 'pricing-quantity'
            });
            
            // 创建计算按钮
            var $calculateBtn = $('<button>', {
                text: '计算报价',
                class: 'button pricing-calculate-btn'
            });
            
            // 创建结果显示区域
            var $results = $('<div>', {
                class: 'pricing-results',
                html: '<div class="price-breakdown"></div>'
            });
            
            // 组装计算器
            $calculator.append(
                $('<div class="quantity-selector">').append(
                    $('<label>').text('数量: '),
                    $quantityInput
                ),
                $calculateBtn,
                $results
            );
            
            // 绑定计算事件
            $calculateBtn.on('click', function() {
                calculateDynamicPrice(productId, $quantityInput.val(), $results);
            });
            
            // 实时计算（输入时自动计算）
            $quantityInput.on('input', function() {
                calculateDynamicPrice(productId, $(this).val(), $results);
            });
            
            // 初始计算
            calculateDynamicPrice(productId, 1, $results);
        });
    }
    
    // 计算动态价格
    function calculateDynamicPrice(productId, quantity, $resultsContainer) {
        if (!productId || quantity < 1) {
            return;
        }
        
        // 显示加载状态
        $resultsContainer.find('.price-breakdown').html('<div class="loading">计算中...</div>');
        
        // 发送AJAX请求
        $.ajax({
            url: smartPricing.ajax_url,
            type: 'POST',
            data: {
                action: 'get_dynamic_price',
                product_id: productId,
                quantity: quantity,
                security: smartPricing.nonce
            },
            success: function(response) {
                if (response.success) {
                    var data = response.data;
                    var html = `
                        <div class="price-summary">
                            <h4>报价详情</h4>
                            <table class="price-table">
                                <tr>
                                    <td>单价:</td>
                                    <td>${data.base_price} → <strong>${data.dynamic_price}</strong></td>
                                </tr>
                                <tr>
                                    <td>${quantity}件总价:</td>
                                    <td>${data.total_base} → <strong>${data.total_dynamic}</strong></td>
                                </tr>
                                <tr class="savings-row">
                                    <td>节省金额:</td>
                                    <td class="savings-amount">${data.savings} (${data.savings_percentage}%)</td>
                                </tr>
                            </table>
                        </div>
                    `;
                    $resultsContainer.find('.price-breakdown').html(html);
                } else {
                    $resultsContainer.find('.price-breakdown').html('<div class="error">计算失败，请重试</div>');
                }
            },
            error: function() {
                $resultsContainer.find('.price-breakdown').html('<div class="error">网络错误，请刷新页面</div>');
            }
        });
    }
    
    // 初始化
    initPricingCalculator();
    
    // 添加到购物车时更新价格显示
    $(document).on('found_variation', function(event, variation) {
        // 当产品变体选择时更新价格计算器
        setTimeout(initPricingCalculator, 100);
    });
});

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<?php
/**
 * 管理设置类
 * 提供定价规则管理界面
 */
class SmartPricing_Admin_Settings {
    
    private static $instance = null;
    
    public static function get_instance() {
        if (null === self::$instance) {
            self::$instance = new self();
        }
        return self::$instance;
    }
    

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    private function __construct() {
        add_action('admin_menu', array($this, 'add_admin_menu'));
        add_action('admin_enqueue_scripts', array($this, 'enqueue_admin_scripts'));
        add_action('admin_init', array($this, 'register_settings'));
    }
    
    /**
     * 添加管理菜单
     */
    public function add_admin_menu() {
        add_submenu_page(
            'woocommerce',
            '智能定价设置',
            '智能定价',
            'manage_options',
            'smart-pricing-settings',
            array($this, 'render_settings_page')
        );
    }
    
    /**
     * 加载管理端脚本和样式
     */
    public function enqueue_admin_scripts($hook) {
        if ('woocommerce_page_smart-pricing-settings' !== $hook) {
            return;
        }
        
        wp_enqueue_style(
            'smart-pricing-admin',
            SMART_PRICING_PLUGIN_URL . 'assets/css/admin.css',
            array(),
            SMART_PRICING_VERSION
        );
        
        wp_enqueue_script(
            'smart-pricing-admin',
            SMART_PRICING_PLUGIN_URL . 'assets/js/admin.js',
            array('jquery', 'jquery-ui-datepicker'),
            SMART_PRICING_VERSION,
            true
        );
        
        wp_localize_script('smart-pricing-admin', 'smartPricingAdmin', array(
            'ajax_url' => admin_url('admin-ajax.php'),
            'nonce' => wp_create_nonce('smart_pricing_admin_nonce'),
            'confirm_delete' => __('确定要删除这条规则吗？', 'smart-pricing'),
        ));
    }
    
    /**
     * 注册设置选项
     */
    public function register_settings() {
        register_setting('smart_pricing_settings', 'smart_pricing_options');
        
        add_settings_section(
            'smart_pricing_main',
            '定价规则管理',
            array($this, 'render_section_callback'),
            'smart-pricing-settings'
        );
    }
    
    /**
     * 渲染设置页面
     */
    public function render_settings_page() {
        if (!current_user_can('manage_options')) {
            wp_die('权限不足');
        }
        
        // 处理表单提交
        $this->handle_form_submissions();
        
        // 获取所有定价规则
        global $wpdb;
        $table_name = $wpdb->prefix . 'smart_pricing_rules';
        $rules = $wpdb->get_results("SELECT * FROM $table_name ORDER BY min_quantity ASC", ARRAY_A);
        
        // 获取用户角色
        $user_roles = get_editable_roles();
        ?>
        <div class="wrap smart-pricing-settings">
            <h1><?php echo esc_html(get_admin_page_title()); ?></h1>
            
            <div class="notice notice-info">
                <p>在此管理智能定价规则。规则按优先级从上到下应用，匹配的第一个规则将被使用。</p>
            </div>
            
            <!-- 添加新规则表单 -->
            <div class="card">
                <h2>添加新定价规则</h2>
                <form method="post" action="">
                    <?php wp_nonce_field('smart_pricing_add_rule', 'smart_pricing_nonce'); ?>
                    <input type="hidden" name="action" value="add_rule">
                    
                    <table class="form-table">
                        <tr>
                            <th scope="row"><label for="rule_name">规则名称</label></th>
                            <td>
                                <input type="text" id="rule_name" name="rule_name" 
                                       class="regular-text" required>
                            </td>
                        </tr>
                        <tr>
                            <th scope="row"><label for="min_quantity">最小数量</label></th>
                            <td>
                                <input type="number" id="min_quantity" name="min_quantity" 
                                       min="0" value="0" class="small-text" required>
                            </td>
                        </tr>
                        <tr>
                            <th scope="row"><label for="max_quantity">最大数量</label></th>
                            <td>
                                <input type="number" id="max_quantity" name="max_quantity" 
                                       min="1" value="9999" class="small-text" required>
                                <p class="description">设置为9999表示无上限</p>
                            </td>
                        </tr>
                        <tr>
                            <th scope="row"><label>折扣类型</label></th>
                            <td>
                                <label>
                                    <input type="radio" name="discount_type" value="percentage" checked>
                                    百分比折扣
                                </label>
                                <label style="margin-left: 20px;">
                                    <input type="radio" name="discount_type" value="fixed">
                                    固定金额折扣
                                </label>
                            </td>
                        </tr>
                        <tr>
                            <th scope="row"><label for="discount_value">折扣值</label></th>
                            <td>
                                <input type="number" id="discount_value" name="discount_value" 
                                       step="0.01" min="0" class="small-text" required>
                                <span class="discount-unit">%</span>
                            </td>
                        </tr>
                        <tr>
                            <th scope="row"><label for="user_role">适用用户角色</label></th>
                            <td>
                                <select id="user_role" name="user_role">
                                    <option value="">所有用户</option>
                                    <?php foreach ($user_roles as $role => $details): ?>
                                        <option value="<?php echo esc_attr($role); ?>">
                                            <?php echo esc_html($details['name']); ?>
                                        </option>
                                    <?php endforeach; ?>
                                </select>
                                <p class="description">留空表示适用于所有用户</p>
                            </td>
                        </tr>
                        <tr>
                            <th scope="row"><label for="start_date">生效时间</label></th>
                            <td>
                                <input type="text" id="start_date" name="start_date" 
                                       class="datepicker" placeholder="YYYY-MM-DD">
                                <p class="description">留空表示立即生效</p>
                            </td>
                        </tr>
                        <tr>
                            <th scope="row"><label for="end_date">结束时间</label></th>
                            <td>
                                <input type="text" id="end_date" name="end_date" 
                                       class="datepicker" placeholder="YYYY-MM-DD">
                                <p class="description">留空表示永久有效</p>
                            </td>
                        </tr>
                    </table>
                    
                    <?php submit_button('添加规则', 'primary', 'submit_rule'); ?>
                </form>
            </div>
            
            <!-- 现有规则列表 -->
            <div class="card">
                <h2>现有定价规则</h2>
                
                <?php if (empty($rules)): ?>
                    <p>暂无定价规则。</p>
                <?php else: ?>
                    <table class="wp-list-table widefat fixed striped">
                        <thead>
                            <tr>
                                <th>规则名称</th>
                                <th>数量范围</th>
                                <th>折扣</th>
                                <th>适用角色</th>
                                <th>生效时间</th>
                                <th>状态</th>
                                <th>操作</th>
                            </tr>
                        </thead>
                        <tbody>
                            <?php foreach ($rules as $rule): ?>
                                <tr>
                                    <td><?php echo esc_html($rule['rule_name']); ?></td>
                                    <td>
                                        <?php 
                                        echo esc_html($rule['min_quantity']);
                                        echo ' - ';
                                        echo $rule['max_quantity'] == 9999 ? '∞' : esc_html($rule['max_quantity']);
                                        ?>
                                    </td>
                                    <td>
                                        <?php 
                                        if ($rule['discount_type'] == 'percentage') {
                                            echo esc_html($rule['discount_value']) . '%';
                                        } else {
                                            echo '¥' . esc_html($rule['discount_value']);
                                        }
                                        ?>
                                    </td>
                                    <td>
                                        <?php 
                                        echo empty($rule['user_role']) 
                                            ? '所有用户' 
                                            : esc_html($rule['user_role']);
                                        ?>
                                    </td>
                                    <td>
                                        <?php
                                        $dates = array();
                                        if ($rule['start_date']) {
                                            $dates[] = date('Y-m-d', strtotime($rule['start_date']));
                                        }
                                        if ($rule['end_date']) {
                                            $dates[] = date('Y-m-d', strtotime($rule['end_date']));
                                        }
                                        echo $dates ? implode(' 至 ', $dates) : '永久';
                                        ?>
                                    </td>
                                    <td>
                                        <?php if ($rule['is_active']): ?>
                                            <span class="status-active">启用</span>
                                        <?php else: ?>
                                            <span class="status-inactive">禁用</span>
                                        <?php endif; ?>
                                    </td>
                                    <td>
                                        <form method="post" action="" style="display: inline;">
                                            <?php wp_nonce_field('smart_pricing_toggle_rule', 'smart_pricing_nonce'); ?>
                                            <input type="hidden" name="action" value="toggle_rule">
                                            <input type="hidden" name="rule_id" value="<?php echo esc_attr($rule['id']); ?>">
                                            <button type="submit" class="button button-small">
                                                <?php echo $rule['is_active'] ? '禁用' : '启用'; ?>
                                            </button>
                                        </form>
                                        
                                        <form method="post" action="" style="display: inline;">
                                            <?php wp_nonce_field('smart_pricing_delete_rule', 'smart_pricing_nonce'); ?>
                                            <input type="hidden" name="action" value="delete_rule">
                                            <input type="hidden" name="rule_id" value="<?php echo esc_attr($rule['id']); ?>">
                                            <button type="submit" class="button button-small button-delete" 
                                                    onclick="return confirm('确定要删除这条规则吗？');">
                                                删除
                                            </button>
                                        </form>
                                    </td>
                                </tr>
                            <?php endforeach; ?>
                        </tbody>
                    </table>
                <?php endif; ?>
            </div>
            
            <!-- 批量定价工具 -->
            <div class="card">
                <h2>批量定价工具</h2>
                <form method="post" action="">
                    <?php wp_nonce_field('smart_pricing_bulk_update', 'smart_pricing_nonce'); ?>
                    <input type="hidden" name="action" value="bulk_update">
                    
                    <table class="form-table">
                        <tr>
                            <th scope="row"><label>应用范围</label></th>
                            <td>
                                <select name="product_scope">
                                    <option value="all">所有产品</option>
                                    <option value="category">特定分类</option>
                                    <option value="selected">选定产品</option>
                                </select>
                            </td>
                        </tr>
                        <tr>
                            <th scope="row"><label>定价规则</label></th>
                            <td>
                                <select name="pricing_rule">
                                    <option value="">-- 选择规则 --</option>
                                    <?php foreach ($rules as $rule): ?>
                                        <?php if ($rule['is_active']): ?>
                                            <option value="<?php echo esc_attr($rule['id']); ?>">
                                                <?php echo esc_html($rule['rule_name']); ?>
                                            </option>
                                        <?php endif; ?>
                                    <?php endforeach; ?>
                                </select>
                            </td>
                        </tr>
                    </table>
                    
                    <?php submit_button('应用批量定价', 'secondary', 'submit_bulk'); ?>
                </form>
            </div>
        </div>
        
        <script>
        jQuery(document).ready(function($) {
            // 日期选择器
            $('.datepicker').datepicker({
                dateFormat: 'yy-mm-dd',
                changeMonth: true,
                changeYear: true
            });
            
            // 折扣类型切换
            $('input[name="discount_type"]').change(function() {
                var unit = $(this).val() === 'percentage' ? '%' : '¥';
                $('.discount-unit').text(unit);
            });
        });
        </script>
        <?php
    }
    
    /**
     * 处理表单提交
     */
    private function handle_form_submissions() {
        if (!isset($_POST['action'])) {
            return;
        }
        
        // 验证nonce
        if (!isset($_POST['smart_pricing_nonce']) || 
            !wp_verify_nonce($_POST['smart_pricing_nonce'], 'smart_pricing_' . $_POST['action'])) {
            wp_die('安全验证失败');
        }
        
        global $wpdb;
        $table_name = $wpdb->prefix . 'smart_pricing_rules';
        
        switch ($_POST['action']) {
            case 'add_rule':
                $data = array(
                    'rule_name' => sanitize_text_field($_POST['rule_name']),
                    'min_quantity' => intval($_POST['min_quantity']),
                    'max_quantity' => intval($_POST['max_quantity']),
                    'discount_type' => sanitize_text_field($_POST['discount_type']),
                    'discount_value' => floatval($_POST['discount_value']),
                    'user_role' => sanitize_text_field($_POST['user_role']),
                    'start_date' => !empty($_POST['start_date']) ? sanitize_text_field($_POST['start_date']) . ' 00:00:00' : null,
                    'end_date' => !empty($_POST['end_date']) ? sanitize_text_field($_POST['end_date']) . ' 23:59:59' : null,
                    'is_active' => 1,
                );
                
                $wpdb->insert($table_name, $data);
                echo '<div class="notice notice-success"><p>规则添加成功！</p></div>';
                break;
                
            case 'toggle_rule':
                $rule_id = intval($_POST['rule_id']);
                $current_status = $wpdb->get_var(
                    $wpdb->prepare("SELECT is_active FROM $table_name WHERE id = %d", $rule_id)
                );
                
                $wpdb->update(
                    $table_name,
                    array('is_active' => $current_status ? 0 : 1),
                    array('id' => $rule_id)
                );
                
                echo '<div class="notice notice-success"><p>规则状态已更新！</p></div>';
                break;
                
            case 'delete_rule':
                $rule_id = intval($_POST['rule_id']);
                $wpdb->delete($table_name, array('id' => $rule_id));
                echo '<div class="notice notice-success"><p>规则已删除！</p></div>';
                break;
                
            case 'bulk_update':
                // 这里可以实现批量更新产品价格的逻辑
                echo '<div class="notice notice-success"><p>批量更新功能开发中...</p></div>';
                break;
        }
    }
}
?>

复制

<?php
/**
 * 前端价格显示模板
 * 在产品页面显示动态价格计算器
 */

class SmartPricing_Frontend_Display {
    
    private static $instance = null;
    
    public static function get_instance() {
        if (null === self::$instance) {
            self::$instance = new self();
        }
        return self::$instance;
    }
    
    private function __construct() {
        add_action('wp_enqueue_scripts', array($this, 'enqueue_frontend_scripts'));
        add_action('woocommerce_before_add_to_cart_button', array($this, 'display_pricing_calculator'));
        add_filter('woocommerce_get_price_html', array($this, 'display_dynamic_price_range'), 10, 2);
    }
    
    /**
     * 加载前端脚本和样式
     */
    public function enqueue_frontend_scripts() {
        if (!is_product()) {
            return;
        }
        
        wp_enqueue_style(
            'smart-pricing-frontend',
            SMART_PRICING_PLUGIN_URL . 'assets/css/frontend.css',
            array(),
            SMART_PRICING_VERSION
        );
        
        wp_enqueue_script(
            'smart-pricing-frontend',
            SMART_PRICING_PLUGIN_URL . 'assets/js/frontend.js',
            array('jquery'),
            SMART_PRICING_VERSION,
            true
        );
        
        global $product;
        wp_localize_script('smart-pricing-frontend', 'smartPricing', array(
            'ajax_url' => admin_url('admin-ajax.php'),
            'nonce' => wp_create_nonce('smart_pricing_nonce'),
            'product_id' => $product->get_id(),
            'base_price' => $product->get_price(),
        ));
    }
    
    /**
     * 显示价格计算器
     */
    public function display_pricing_calculator() {
        global $product;
        
        if (!$product || !$product->is_purchasable()) {
            return;
        }
        
        // 只对简单产品和变体产品显示
        if (!$product->is_type('simple') && !$product->is_type('variable')) {
            return;
        }
        
        ?>
        <div class="smart-pricing-calculator" 
             data-product-id="<?php echo esc_attr($product->get_id()); ?>"
             data-base-price="<?php echo esc_attr($product->get_price()); ?>">
            <h3>批量报价计算器</h3>
            <p class="description">输入数量查看优惠价格</p>
            <!-- 内容由JavaScript动态生成 -->
        </div>
        <?php
    }
    
    /**
     * 显示动态价格范围
     */
    public function display_dynamic_price_range($price_html, $product) {
        if (is_admin() || !$product->is_type('simple')) {
            return $price_html;
        }
        
        // 获取价格范围
        $price_range = $this->get_price_range($product);
        
        if ($price_range['min'] != $price_range['max']) {
            $price_html = sprintf(
                '<span class="price-range">%s - %s</span>',
                wc_price($price_range['min']),
                wc_price($price_range['max'])
            );
            
            $price_html .= '<small class="price-range-note">(价格随数量变化)</small>';
        }