Merged in feature/from-pantheon (pull request #16)

code from pantheon

* code from pantheon

wp/wp-content/plugins/woocommerce/src/Admin/RemoteInboxNotifications/NoteStatusRuleProcessor.php

@@ -0,0 +1,61 @@
+<?php
+/**
+ * Rule processor that compares against the status of another note. For
+ * example, this could be used to conditionally create a note only if another
+ * note has not been actioned.
+ */
+
+namespace Automattic\WooCommerce\Admin\RemoteInboxNotifications;
+
+defined( 'ABSPATH' ) || exit;
+
+use Automattic\WooCommerce\Admin\Notes\Notes;
+
+/**
+ * Rule processor that compares against the status of another note.
+ */
+class NoteStatusRuleProcessor implements RuleProcessorInterface {
+	/**
+	 * Compare against the status of another note.
+	 *
+	 * @param object $rule         The rule being processed by this rule processor.
+	 * @param object $stored_state Stored state.
+	 *
+	 * @return bool The result of the operation.
+	 */
+	public function process( $rule, $stored_state ) {
+		$status = Notes::get_note_status( $rule->note_name );
+		if ( ! $status ) {
+			return false;
+		}
+
+		return ComparisonOperation::compare(
+			$status,
+			$rule->status,
+			$rule->operation
+		);
+	}
+
+	/**
+	 * Validates the rule.
+	 *
+	 * @param object $rule The rule to validate.
+	 *
+	 * @return bool Pass/fail.
+	 */
+	public function validate( $rule ) {
+		if ( ! isset( $rule->note_name ) ) {
+			return false;
+		}
+
+		if ( ! isset( $rule->status ) ) {
+			return false;
+		}
+
+		if ( ! isset( $rule->operation ) ) {
+			return false;
+		}
+
+		return true;
+	}
+}