twilio-wp-plugin/includes/class-twp-shortcodes.php

<?php
/**
 * Handle plugin shortcodes
 */
class TWP_Shortcodes {
    
    /**
     * Initialize shortcodes
     */
    public static function init() {
        add_action('init', array(__CLASS__, 'register_shortcodes'));
        add_action('wp_enqueue_scripts', array(__CLASS__, 'enqueue_frontend_assets'));
    }
    
    /**
     * Register all shortcodes
     */
    public static function register_shortcodes() {
        add_shortcode('twp_browser_phone', array(__CLASS__, 'browser_phone_shortcode'));
    }
    
    /**
     * Enqueue frontend assets when shortcode is present
     */
    public static function enqueue_frontend_assets() {
        global $post;
        
        if (is_a($post, 'WP_Post') && has_shortcode($post->post_content, 'twp_browser_phone')) {
            // Enqueue Twilio Voice SDK with multiple fallbacks
            wp_enqueue_script(
                'twilio-voice-sdk',
                'https://sdk.twilio.com/js/voice/2.11.1/twilio.min.js',
                array(),
                '2.11.1',
                false // Load in head to ensure it's available
            );
            
            // Add backup SDK loading
            wp_add_inline_script('twilio-voice-sdk', "
                window.twpLoadTwilioSDK = function() {
                    if (typeof Twilio === 'undefined') {
                        console.warn('Primary Twilio SDK failed, attempting fallback load');
                        var script = document.createElement('script');
                        script.src = 'https://sdk.twilio.com/js/voice/2.11.1/twilio.min.js';
                        script.onload = function() { console.log('Fallback Twilio SDK loaded'); };
                        script.onerror = function() { console.error('Fallback Twilio SDK failed'); };
                        document.head.appendChild(script);
                    }
                };
                
                // Try loading after a delay if not available
                setTimeout(window.twpLoadTwilioSDK, 2000);
            ", 'after');
            
            // Enqueue our browser phone script
            wp_enqueue_script(
                'twp-browser-phone-frontend',
                TWP_PLUGIN_URL . 'assets/js/browser-phone-frontend.js',
                array('jquery', 'twilio-voice-sdk'),
                TWP_VERSION,
                true
            );
            
            // Enqueue mobile-friendly styles
            wp_enqueue_style(
                'twp-browser-phone-frontend',
                TWP_PLUGIN_URL . 'assets/css/browser-phone-frontend.css',
                array(),
                TWP_VERSION
            );
            
            // Localize script with AJAX data
            wp_localize_script('twp-browser-phone-frontend', 'twp_frontend_ajax', array(
                'ajax_url' => admin_url('admin-ajax.php'),
                'nonce' => wp_create_nonce('twp_frontend_nonce'),
                'user_id' => get_current_user_id(),
                'is_logged_in' => is_user_logged_in()
            ));
        }
    }
    
    /**
     * Browser phone shortcode handler
     */
    public static function browser_phone_shortcode($atts) {
        // Check if user is logged in
        if (!is_user_logged_in()) {
            return '<div class="twp-error">You must be logged in to access the browser phone.</div>';
        }
        
        // Check if user has permission
        if (!current_user_can('twp_access_browser_phone') && !current_user_can('manage_options')) {
            return '<div class="twp-error">You don\'t have permission to access the browser phone.</div>';
        }
        
        // Parse shortcode attributes
        $atts = shortcode_atts(array(
            'title' => 'Browser Phone',
            'show_title' => 'true',
            'compact' => 'false'
        ), $atts, 'twp_browser_phone');
        
        $show_title = ($atts['show_title'] === 'true');
        $compact_mode = ($atts['compact'] === 'true');
        
        ob_start();
        ?>
        <div id="twp-frontend-browser-phone" class="twp-browser-phone-container <?php echo $compact_mode ? 'compact' : ''; ?>">
            <?php if ($show_title): ?>
                <h3 class="twp-browser-phone-title"><?php echo esc_html($atts['title']); ?></h3>
            <?php endif; ?>
            
            <!-- Connection Status -->
            <div class="twp-connection-status">
                <span class="status-indicator offline" id="twp-status-indicator"></span>
                <span class="status-text" id="twp-status-text">Connecting...</span>
            </div>
            
            <!-- Phone Number Selection -->
            <div class="twp-phone-selection">
                <label for="twp-caller-id">Caller ID:</label>
                <select id="twp-caller-id" class="twp-select">
                    <option value="">Loading...</option>
                </select>
            </div>
            
            <!-- Dial Pad -->
            <div class="twp-dialpad">
                <div class="twp-number-display">
                    <input type="tel" id="twp-dial-number" placeholder="Enter number to dial" />
                    <button id="twp-clear-number" class="twp-btn-clear" title="Clear">×</button>
                </div>
                
                <div class="twp-dial-grid">
                    <button class="twp-dial-btn" data-digit="1">1<span></span></button>
                    <button class="twp-dial-btn" data-digit="2">2<span>ABC</span></button>
                    <button class="twp-dial-btn" data-digit="3">3<span>DEF</span></button>
                    <button class="twp-dial-btn" data-digit="4">4<span>GHI</span></button>
                    <button class="twp-dial-btn" data-digit="5">5<span>JKL</span></button>
                    <button class="twp-dial-btn" data-digit="6">6<span>MNO</span></button>
                    <button class="twp-dial-btn" data-digit="7">7<span>PQRS</span></button>
                    <button class="twp-dial-btn" data-digit="8">8<span>TUV</span></button>
                    <button class="twp-dial-btn" data-digit="9">9<span>WXYZ</span></button>
                    <button class="twp-dial-btn" data-digit="*">*</button>
                    <button class="twp-dial-btn" data-digit="0">0<span>+</span></button>
                    <button class="twp-dial-btn" data-digit="#">#</button>
                </div>
            </div>
            
            <!-- Call Controls -->
            <div class="twp-call-controls">
                <button id="twp-call-btn" class="twp-btn twp-btn-primary">
                    <span class="call-icon">📞</span>
                    <span class="call-text">Call</span>
                </button>
                <button id="twp-hangup-btn" class="twp-btn twp-btn-danger" style="display: none;">
                    <span class="hangup-icon">📞</span>
                    <span class="hangup-text">Hang Up</span>
                </button>
            </div>
            
            <!-- Call Info -->
            <div class="twp-call-info" id="twp-call-info" style="display: none;">
                <div class="call-timer">
                    <span class="timer-label">Call Duration:</span>
                    <span class="timer-value" id="twp-call-timer">00:00</span>
                </div>
                <div class="call-status">
                    <span id="twp-call-status">Connecting...</span>
                </div>
            </div>
            
            <!-- Queue Management Section -->
            <div class="twp-queue-section" id="twp-queue-section">
                <h4>Your Queues</h4>
                <div class="twp-queue-list" id="twp-queue-list">
                    <div class="queue-loading">Loading queues...</div>
                </div>
                
                <!-- Queue Controls -->
                <div class="twp-queue-controls" id="twp-queue-controls" style="display: none;">
                    <div class="selected-queue-info">
                        <h5 id="selected-queue-name">No queue selected</h5>
                        <div class="queue-stats">
                            <span class="waiting-count">Waiting: <span id="twp-waiting-count">0</span></span>
                            <span class="queue-size">Max: <span id="twp-queue-max-size">-</span></span>
                        </div>
                    </div>
                    <div class="queue-actions">
                        <button id="twp-accept-queue-call" class="twp-btn twp-btn-success">
                            Accept Next Call
                        </button>
                        <button id="twp-refresh-queues" class="twp-btn twp-btn-secondary">
                            Refresh
                        </button>
                    </div>
                </div>
            </div>
            
            <!-- Audio elements for incoming calls handled by browser -->
            <audio id="twp-ringtone" style="display: none;"></audio>
            
            <!-- Error/Success Messages -->
            <div class="twp-messages" id="twp-messages"></div>
        </div>
        <?php
        return ob_get_clean();
    }
}