Initial commit: ATT Consent plugin v1.0.0

Google Consent Mode v2 cookie consent plugin with session attribution
preservation, custom script management, and gtag.js/GTM support.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

includes/class-consent-api.php

@@ -0,0 +1,51 @@
+<?php
+/**
+ * WP Consent API integration.
+ *
+ * Registers with the WP Consent API plugin (if active) so other plugins
+ * can query consent status via wp_has_consent().
+ *
+ * @package ATT_Consent
+ */
+
+if ( ! defined( 'ABSPATH' ) ) {
+	exit;
+}
+
+class ATT_Consent_API {
+
+	/**
+	 * Constructor.
+	 */
+	public function __construct() {
+		// Register as a compliant plugin with WP Consent API.
+		add_filter( 'wp_consent_api_registered_' . ATT_CC_PLUGIN_BASENAME, '__return_true' );
+
+		// Map our categories to WP Consent API categories.
+		add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_consent_api_bridge' ), 20 );
+	}
+
+	/**
+	 * Enqueue a small bridge script that syncs ATT Consent with WP Consent API.
+	 */
+	public function enqueue_consent_api_bridge() {
+		// Only load if WP Consent API is active.
+		if ( ! function_exists( 'wp_has_consent' ) ) {
+			return;
+		}
+
+		$script = "
+			document.addEventListener('att_consent_update', function(e) {
+				var c = e.detail;
+				if (typeof wp_set_consent === 'function') {
+					wp_set_consent('functional', c.functional ? 'allow' : 'deny');
+					wp_set_consent('statistics', c.analytics ? 'allow' : 'deny');
+					wp_set_consent('marketing', c.marketing ? 'allow' : 'deny');
+					wp_set_consent('preferences', c.functional ? 'allow' : 'deny');
+				}
+			});
+		";
+
+		wp_add_inline_script( 'att-consent-manager', $script, 'after' );
+	}
+}