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<?php |
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|
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namespace WPDeveloper\BetterDocs\REST; |
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|
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use WP_REST_Request; |
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use WPDeveloper\BetterDocs\Core\BaseAPI; |
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use WPDeveloper\BetterDocs\Core\SiteProfiler; |
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use WPDeveloper\BetterDocs\Core\Settings; |
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use WPDeveloper\BetterDocs\Dependencies\DI\Container; |
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|
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/** |
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* REST surface for the AI "Generate Sample Docs" feature (Phase 2). |
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* |
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* Routes (namespace betterdocs/v1): |
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* POST sample-docs/detect → SiteProfiler profile + locally suggested categories |
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* POST sample-docs/generate → signs + forwards to the hosted proxy, returns articles |
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* POST sample-docs/insert → DocBuilder creates the terms/posts (Phase 4) |
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* POST sample-docs/undo → DocBuilder removes the flagged sample content (Phase 4) |
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* |
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* @since 4.5.3 |
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*/ |
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class SampleDocs extends BaseAPI { |
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/** Hard caps mirrored on the proxy (Phase 0 contract). */ |
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const MAX_CATEGORIES = 3; |
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const MAX_ARTICLES_PER_CATEGORY = 3; |
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|
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/** Default per-category palette/icons (matches the design mockup). */ |
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const PALETTE = [ '#00B884', '#3B82F6', '#8B5CF6', '#F59E0B', '#0EA5E9', '#EF4444' ]; |
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|
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/** |
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* @var SiteProfiler |
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*/ |
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protected $profiler; |
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|
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public function __construct( Settings $settings, Container $container, SiteProfiler $profiler ) { |
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parent::__construct( $settings, $container ); |
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$this->profiler = $profiler; |
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} |
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|
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public function permission_check(): bool { |
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return current_user_can( 'edit_docs_settings' ); |
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} |
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|
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public function register() { |
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$this->post( 'sample-docs/detect', [ $this, 'detect' ] ); |
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$this->post( 'sample-docs/generate', [ $this, 'generate' ] ); |
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$this->post( 'sample-docs/insert', [ $this, 'insert' ] ); |
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$this->post( 'sample-docs/undo', [ $this, 'undo' ] ); |
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} |
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|
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/** |
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* Detection step — returns the site profile and locally-derived suggested |
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* categories (no AI). Feeds the design's "detecting" + "detected profile" screens. |
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*/ |
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public function detect( WP_REST_Request $request ) { |
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if ( ! $this->is_enabled() ) { |
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return $this->error( 'feature_disabled', __( 'AI sample docs is disabled.', 'betterdocs' ), 403 ); |
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} |
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|
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$content_type = $this->content_type( $request ); |
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$profile = $this->profiler->build( (bool) $request->get_param( 'fresh' ) ); |
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|
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/** |
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* Telemetry: site detection ran. |
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* |
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* @param string $type Detected site type. |
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* @param string $content_type docs|faq |
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*/ |
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do_action( 'betterdocs_sample_docs_detected', $profile['type'] ?? 'general', $content_type ); |
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|
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return $this->success( |
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[ |
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'profile' => $profile, |
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'categories' => $this->suggested_categories( $profile, $content_type ), |
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] |
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); |
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} |
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|
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/** |
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* Generation step — signs the request and forwards it to the hosted proxy, |
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* which calls OpenAI and returns structured categories + articles. |
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*/ |
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public function generate( WP_REST_Request $request ) { |
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if ( ! $this->is_enabled() ) { |
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return $this->error( 'feature_disabled', __( 'AI sample docs is disabled.', 'betterdocs' ), 403 ); |
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} |
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|
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$content_type = $this->content_type( $request ); |
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$profile = (array) $request->get_param( 'profile' ); |
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$categories = $this->sanitize_categories( (array) $request->get_param( 'categories' ), false, $this->max_categories( $content_type ) ); |
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|
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if ( empty( $profile ) ) { |
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$profile = $this->profiler->build(); |
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} |
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if ( empty( $categories ) ) { |
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$categories = $this->suggested_categories( $profile, $content_type ); |
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} |
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|
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// Product FAQs are generated deterministically from the store's real |
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// WooCommerce settings — accurate, instant, never generic, and with no |
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// AI/proxy round-trip. |
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if ( 'product_faq' === $content_type ) { |
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return $this->success( $this->build_store_faqs( $profile, $content_type, $categories ) ); |
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} |
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|
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$payload = [ |
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'profile' => $profile, |
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'categories' => $categories, |
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'options' => [ |
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'content_type' => $content_type, |
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'maxCategories' => self::MAX_CATEGORIES, |
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'maxArticlesPerCategory' => self::MAX_ARTICLES_PER_CATEGORY, |
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'locale' => isset( $profile['site']['locale'] ) ? $profile['site']['locale'] : get_locale(), |
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], |
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]; |
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|
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$response = $this->call_proxy( $payload ); |
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|
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if ( is_wp_error( $response ) ) { |
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$code = $response->get_error_code(); |
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|
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/** |
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* Telemetry: generation failed (e.g. quota_exceeded, proxy_error). |
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* |
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* @param string $content_type docs|faq |
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* @param string $code Error code. |
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*/ |
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do_action( 'betterdocs_sample_docs_generation_failed', $content_type, $code ); |
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|
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// Typed errors the UI maps to the quota / fallback screens. |
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$data = $response->get_error_data(); |
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$status = is_array( $data ) && isset( $data['status'] ) ? $data['status'] : 502; |
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|
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return $this->error( $code, $response->get_error_message(), $status, [ 'fallback' => 'static' ] ); |
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} |
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|
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/** |
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* Telemetry: generation succeeded. |
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* |
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* @param string $content_type docs|faq |
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* @param int $count Number of categories returned. |
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*/ |
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do_action( 'betterdocs_sample_docs_generated', $content_type, count( $response['categories'] ) ); |
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|
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return $this->success( |
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[ |
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'content_type' => $content_type, |
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'categories' => $response['categories'], |
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'meta' => isset( $response['meta'] ) ? $response['meta'] : [], |
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] |
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); |
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} |
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|
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/** |
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* Build the deterministic, store-grounded Product FAQ payload from the site's |
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* real WooCommerce settings (payments, shipping, returns/refunds, account). This |
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* is the primary generator for product_faq — accurate, instant, and AI-free. |
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* |
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* @return array { content_type, categories, meta } |
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*/ |
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protected function build_store_faqs( $profile, $content_type, $selected = [] ) { |
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$store = $this->store_faq(); |
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$categories = $store ? $store->generate( (array) $profile ) : []; |
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// Honor the categories the user kept on the profile screen — the generator |
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// otherwise always emits the full curated set, so removing a chip had no |
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// effect on what got generated (fbs). |
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$categories = $this->filter_selected_categories( $categories, (array) $selected ); |
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$categories = $this->sanitize_categories( $categories, true, $this->max_categories( $content_type ) ); |
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|
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do_action( 'betterdocs_sample_docs_generated', $content_type, count( $categories ) ); |
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|
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return [ |
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'content_type' => $content_type, |
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'categories' => $categories, |
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'meta' => [ 'model' => 'betterdocs-local', 'source' => 'deterministic' ], |
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]; |
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} |
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|
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/** |
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* Lazily resolve the deterministic store-FAQ generator. |
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* |
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* @return \WPDeveloper\BetterDocs\Core\StoreFaqContent|null |
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*/ |
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protected function store_faq() { |
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$class = 'WPDeveloper\\BetterDocs\\Core\\StoreFaqContent'; |
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if ( ! class_exists( $class ) ) { |
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return null; |
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} |
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return $this->container->get( $class ); |
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} |
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|
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/** |
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* Insert step — DocBuilder creates the terms/posts. Wired in Phase 4. |
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*/ |
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public function insert( WP_REST_Request $request ) { |
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if ( ! $this->is_enabled() ) { |
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return $this->error( 'feature_disabled', __( 'AI sample docs is disabled.', 'betterdocs' ), 403 ); |
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} |
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|
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$builder = $this->builder(); |
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if ( null === $builder ) { |
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return $this->error( 'not_implemented', __( 'Inserting sample docs is not available yet.', 'betterdocs' ), 501 ); |
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} |
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|
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$content_type = $this->content_type( $request ); |
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$categories = $this->sanitize_categories( (array) $request->get_param( 'categories' ), true, $this->max_categories( $content_type ) ); |
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|
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$result = $builder->build( $categories, $content_type ); |
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|
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if ( is_wp_error( $result ) ) { |
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return $this->error( $result->get_error_code(), $result->get_error_message(), 400 ); |
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} |
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|
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return $this->success( $result ); |
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} |
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|
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/** |
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* Undo step — remove exactly the sample content we created. Wired in Phase 4. |
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*/ |
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public function undo( WP_REST_Request $request ) { |
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if ( ! $this->is_enabled() ) { |
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return $this->error( 'feature_disabled', __( 'AI sample docs is disabled.', 'betterdocs' ), 403 ); |
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} |
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|
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$builder = $this->builder(); |
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if ( null === $builder ) { |
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return $this->error( 'not_implemented', __( 'Removing sample docs is not available yet.', 'betterdocs' ), 501 ); |
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} |
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|
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$content_type = $this->content_type( $request ); |
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return $this->success( $builder->undo( $content_type ) ); |
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} |
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|
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/** |
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* Lazily resolve the DocBuilder (added in Phase 4) so this class loads even |
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* before the builder exists. |
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* |
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* @return \WPDeveloper\BetterDocs\Core\SampleDocBuilder|null |
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*/ |
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protected function builder() { |
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$class = 'WPDeveloper\\BetterDocs\\Core\\SampleDocBuilder'; |
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if ( ! class_exists( $class ) ) { |
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return null; |
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} |
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return $this->container->get( $class ); |
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} |
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|
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/* --------------------------------------------------------------------- */ |
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/* Proxy plumbing */ |
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/* --------------------------------------------------------------------- */ |
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|
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/** |
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* Sign + POST the payload to the hosted proxy, with one retry. |
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* |
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* @return array|\WP_Error Parsed { categories, meta } on success. |
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*/ |
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protected function call_proxy( array $payload ) { |
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$url = $this->proxy_url(); |
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$secret = $this->proxy_secret(); |
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$body = wp_json_encode( $payload ); |
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|
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$args = [ |
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'timeout' => 30, |
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'headers' => [ |
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'Content-Type' => 'application/json', |
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'Accept' => 'application/json', |
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'X-BetterDocs-Site' => esc_url_raw( home_url() ), |
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'X-BetterDocs-License' => $this->license_key(), |
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'X-BetterDocs-Signature' => hash_hmac( 'sha256', $body, $secret ), |
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], |
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'body' => $body, |
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]; |
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|
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$attempts = 0; |
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$response = null; |
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while ( $attempts < 2 ) { |
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$attempts++; |
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$response = wp_remote_post( $url, $args ); |
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|
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// Retry ONLY on a genuine transport failure (no HTTP response). A 5xx may |
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// mean the proxy already called OpenAI and spent tokens, so re-POSTing |
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// would risk double-billing — treat any received status as final. |
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if ( ! is_wp_error( $response ) ) { |
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break; |
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} |
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} |
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|
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if ( is_wp_error( $response ) ) { |
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return $this->error( 'proxy_unreachable', __( 'Could not reach the BetterDocs AI service. Please try again.', 'betterdocs' ), 502 ); |
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} |
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|
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$status = wp_remote_retrieve_response_code( $response ); |
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$parsed = json_decode( wp_remote_retrieve_body( $response ), true ); |
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|
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if ( 429 === $status || ( isset( $parsed['status'] ) && 'quota_exceeded' === $parsed['status'] ) ) { |
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return $this->error( 'quota_exceeded', __( 'You have used your free AI generation for this site.', 'betterdocs' ), 429 ); |
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} |
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|
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if ( $status >= 400 || empty( $parsed['categories'] ) || ! is_array( $parsed['categories'] ) ) { |
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$message = isset( $parsed['message'] ) ? $parsed['message'] : __( 'The AI service returned an unexpected response.', 'betterdocs' ); |
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return $this->error( 'proxy_error', $message, 502 ); |
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} |
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|
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// Enforce caps + sanitize defensively on our side too. |
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$parsed['categories'] = $this->sanitize_categories( $parsed['categories'], true ); |
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|
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return $parsed; |
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} |
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|
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protected function proxy_url() { |
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$base = get_option( 'betterdocs_ai_proxy_url', 'https://api.betterdocs.co/ai' ); |
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/** Filter the hosted proxy base URL. */ |
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$base = apply_filters( 'betterdocs_ai_proxy_url', $base ); |
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return trailingslashit( $base ) . 'v1/sample-docs'; |
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} |
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|
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protected function proxy_secret() { |
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$secret = get_option( 'betterdocs_ai_proxy_secret', 'betterdocs-local-dev-secret' ); |
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/** Filter the HMAC shared secret used to sign proxy requests. */ |
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return apply_filters( 'betterdocs_ai_proxy_secret', $secret ); |
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} |
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|
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protected function license_key() { |
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/** Filter the license key sent to the proxy for per-site identity. */ |
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return apply_filters( 'betterdocs_ai_proxy_license', (string) get_option( 'betterdocs_pro_licenses', '' ) ); |
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} |
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|
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/* --------------------------------------------------------------------- */ |
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/* Helpers */ |
| 330 |
/* --------------------------------------------------------------------- */ |
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|
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protected function is_enabled() { |
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return (bool) $this->settings->get( 'enable_ai_sample_docs', true ); |
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} |
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|
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protected function content_type( WP_REST_Request $request ) { |
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$type = $request->get_param( 'content_type' ); |
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if ( 'faq' === $type || 'product_faq' === $type ) { |
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return $type; |
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} |
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return 'docs'; |
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} |
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|
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/** |
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* Per-content-type category cap. Product FAQs cover the four store-ops groups |
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* (Payments & Billing, Shipping & Delivery, Returns & Refunds, Orders & Account); |
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* docs and general FAQ keep the default cap. |
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* |
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* @return int |
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*/ |
| 351 |
protected function max_categories( $content_type ) { |
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return 'product_faq' === $content_type ? 4 : self::MAX_CATEGORIES; |
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} |
| 354 |
|
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/** |
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* Deterministic, type-aware suggested categories (no AI) for the profile screen. |
| 357 |
* |
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* @return array |
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*/ |
| 360 |
protected function suggested_categories( array $profile, $content_type ) { |
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$type = isset( $profile['type'] ) ? $profile['type'] : 'general'; |
| 362 |
|
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// WooCommerce Product FAQ: the curated store starter set is the single |
| 364 |
// source of truth (StoreFaqContent), so the chips/titles shown here match |
| 365 |
// what the deterministic fallback generates. |
| 366 |
if ( 'product_faq' === $content_type ) { |
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$store = $this->store_faq(); |
| 368 |
$defs = $store ? $store->definition() : []; |
| 369 |
$defs = array_slice( $defs, 0, $this->max_categories( $content_type ) ); |
| 370 |
|
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$cats = []; |
| 372 |
foreach ( $defs as $i => $group ) { |
| 373 |
$cats[] = [ |
| 374 |
'id' => sanitize_key( 'sd_' . $i ), |
| 375 |
'name' => $group['name'], |
| 376 |
'icon' => isset( $group['icon'] ) ? sanitize_key( $group['icon'] ) : 'help', |
| 377 |
'color' => self::PALETTE[ $i % count( self::PALETTE ) ], |
| 378 |
'articles' => array_values( (array) $group['questions'] ), |
| 379 |
]; |
| 380 |
} |
| 381 |
|
| 382 |
return $cats; |
| 383 |
} |
| 384 |
|
| 385 |
if ( 'faq' === $content_type ) { |
| 386 |
// FAQ groups: product-store questions on a WooCommerce/ecommerce |
| 387 |
// site, general site questions otherwise. |
| 388 |
$names = 'ecommerce' === $type |
| 389 |
? [ 'Shipping & Delivery', 'Returns & Refunds', 'Payments & Orders' ] |
| 390 |
: [ 'Getting Started', 'Account & Billing', 'Troubleshooting' ]; |
| 391 |
} else { |
| 392 |
// Documentation categories — article-style guides, NOT FAQ groups (no |
| 393 |
// "FAQs" category here; FAQs are a separate content type). The hosted |
| 394 |
// proxy refines these names to fit the specific site and writes real |
| 395 |
// article titles + bodies for each. |
| 396 |
$presets = [ |
| 397 |
'ecommerce' => [ 'Getting Started', 'Shipping & Delivery', 'Product Guides' ], |
| 398 |
'course_lms' => [ 'Getting Started', 'Course Access', 'Lessons & Content' ], |
| 399 |
'digital_downloads' => [ 'Getting Started', 'Downloads & Licenses', 'Installation' ], |
| 400 |
'membership' => [ 'Getting Started', 'Membership & Plans', 'Member Benefits' ], |
| 401 |
'community' => [ 'Getting Started', 'Using the Community', 'Your Profile' ], |
| 402 |
'business_site' => [ 'Getting Started', 'Our Services', 'How-to Guides' ], |
| 403 |
'general' => [ 'Getting Started', 'Guides & How-tos', 'Features & Settings' ], |
| 404 |
]; |
| 405 |
$names = isset( $presets[ $type ] ) ? $presets[ $type ] : $presets['general']; |
| 406 |
} |
| 407 |
|
| 408 |
// Never suggest more than the cap, so the preview matches what actually |
| 409 |
// gets generated and inserted. |
| 410 |
$names = array_slice( $names, 0, $this->max_categories( $content_type ) ); |
| 411 |
|
| 412 |
$icons = [ 'book', 'truck', 'help', 'refund' ]; |
| 413 |
|
| 414 |
$cats = []; |
| 415 |
foreach ( $names as $i => $name ) { |
| 416 |
$cats[] = [ |
| 417 |
'id' => sanitize_key( 'sd_' . $i ), |
| 418 |
'name' => $name, |
| 419 |
'icon' => $icons[ $i % count( $icons ) ], |
| 420 |
'color' => self::PALETTE[ $i % count( self::PALETTE ) ], |
| 421 |
'articles' => $this->seed_articles( $name, $content_type ), |
| 422 |
]; |
| 423 |
} |
| 424 |
|
| 425 |
return $cats; |
| 426 |
} |
| 427 |
|
| 428 |
/** |
| 429 |
* Placeholder article/question titles so the profile-step counters render. |
| 430 |
* The proxy replaces these with real generated content. |
| 431 |
* |
| 432 |
* @return array |
| 433 |
*/ |
| 434 |
protected function seed_articles( $name, $content_type ) { |
| 435 |
if ( 'faq' === $content_type ) { |
| 436 |
return [ |
| 437 |
/* translators: %s: suggested FAQ group / category name. */ |
| 438 |
sprintf( __( 'What is %s?', 'betterdocs' ), $name ), |
| 439 |
__( 'Common questions', 'betterdocs' ), |
| 440 |
__( 'Tips & best practices', 'betterdocs' ), |
| 441 |
]; |
| 442 |
} |
| 443 |
|
| 444 |
return [ |
| 445 |
/* translators: %s: suggested category name. */ |
| 446 |
sprintf( __( '%s — overview', 'betterdocs' ), $name ), |
| 447 |
__( 'Key concepts', 'betterdocs' ), |
| 448 |
__( 'Step-by-step guide', 'betterdocs' ), |
| 449 |
]; |
| 450 |
} |
| 451 |
|
| 452 |
/** |
| 453 |
* Keep only the generated categories the user left selected on the profile |
| 454 |
* screen, matched by normalized name. Falls back to the full generated set when |
| 455 |
* the selection is empty or nothing matches, so we never return zero categories. |
| 456 |
* |
| 457 |
* @param array $generated Categories produced by the deterministic generator. |
| 458 |
* @param array $selected The user's kept categories (each with a 'name'). |
| 459 |
* @return array |
| 460 |
*/ |
| 461 |
protected function filter_selected_categories( array $generated, array $selected ) { |
| 462 |
if ( empty( $selected ) ) { |
| 463 |
return $generated; |
| 464 |
} |
| 465 |
|
| 466 |
$wanted = []; |
| 467 |
foreach ( $selected as $cat ) { |
| 468 |
if ( is_array( $cat ) && ! empty( $cat['name'] ) ) { |
| 469 |
$wanted[ $this->normalize_category_name( $cat['name'] ) ] = true; |
| 470 |
} |
| 471 |
} |
| 472 |
if ( empty( $wanted ) ) { |
| 473 |
return $generated; |
| 474 |
} |
| 475 |
|
| 476 |
$filtered = array_values( |
| 477 |
array_filter( |
| 478 |
$generated, |
| 479 |
function ( $group ) use ( $wanted ) { |
| 480 |
return ! empty( $group['name'] ) && isset( $wanted[ $this->normalize_category_name( $group['name'] ) ] ); |
| 481 |
} |
| 482 |
) |
| 483 |
); |
| 484 |
|
| 485 |
return ! empty( $filtered ) ? $filtered : $generated; |
| 486 |
} |
| 487 |
|
| 488 |
/** |
| 489 |
* Normalize a category name for loose matching between the user's selection and |
| 490 |
* the generated set (case/whitespace/tag-insensitive). |
| 491 |
* |
| 492 |
* @return string |
| 493 |
*/ |
| 494 |
protected function normalize_category_name( $name ) { |
| 495 |
return strtolower( trim( wp_strip_all_tags( (string) $name ) ) ); |
| 496 |
} |
| 497 |
|
| 498 |
/** |
| 499 |
* Sanitize + cap an incoming categories array (used both for the user's edited |
| 500 |
* list and the proxy response). |
| 501 |
* |
| 502 |
* @param bool $with_content Keep article body HTML (proxy response) vs titles only. |
| 503 |
* @param int $max Category cap (defaults to MAX_CATEGORIES; product_faq uses more). |
| 504 |
* @return array |
| 505 |
*/ |
| 506 |
protected function sanitize_categories( array $categories, $with_content = false, $max = self::MAX_CATEGORIES ) { |
| 507 |
$max = max( 1, (int) $max ); |
| 508 |
$clean = []; |
| 509 |
foreach ( array_slice( $categories, 0, $max ) as $i => $cat ) { |
| 510 |
if ( empty( $cat['name'] ) ) { |
| 511 |
continue; |
| 512 |
} |
| 513 |
|
| 514 |
$articles = []; |
| 515 |
$raw = isset( $cat['articles'] ) && is_array( $cat['articles'] ) ? $cat['articles'] : []; |
| 516 |
foreach ( array_slice( $raw, 0, self::MAX_ARTICLES_PER_CATEGORY ) as $article ) { |
| 517 |
if ( is_array( $article ) ) { |
| 518 |
$entry = [ |
| 519 |
'title' => sanitize_text_field( isset( $article['title'] ) ? $article['title'] : '' ), |
| 520 |
'excerpt' => sanitize_text_field( isset( $article['excerpt'] ) ? $article['excerpt'] : '' ), |
| 521 |
]; |
| 522 |
if ( $with_content ) { |
| 523 |
$entry['content_html'] = wp_kses_post( isset( $article['content_html'] ) ? $article['content_html'] : '' ); |
| 524 |
} |
| 525 |
if ( '' !== $entry['title'] ) { |
| 526 |
$articles[] = $entry; |
| 527 |
} |
| 528 |
} else { |
| 529 |
$title = sanitize_text_field( $article ); |
| 530 |
if ( '' !== $title ) { |
| 531 |
$articles[] = $with_content ? [ 'title' => $title, 'content_html' => '', 'excerpt' => '' ] : $title; |
| 532 |
} |
| 533 |
} |
| 534 |
} |
| 535 |
|
| 536 |
$clean[] = [ |
| 537 |
'id' => sanitize_key( isset( $cat['id'] ) ? $cat['id'] : 'sd_' . $i ), |
| 538 |
'name' => sanitize_text_field( $cat['name'] ), |
| 539 |
'description' => isset( $cat['description'] ) ? sanitize_text_field( $cat['description'] ) : '', |
| 540 |
'icon' => isset( $cat['icon'] ) ? sanitize_key( $cat['icon'] ) : 'book', |
| 541 |
'color' => sanitize_hex_color( isset( $cat['color'] ) ? $cat['color'] : '' ) ?: self::PALETTE[ $i % count( self::PALETTE ) ], |
| 542 |
'articles' => $articles, |
| 543 |
]; |
| 544 |
} |
| 545 |
|
| 546 |
return $clean; |
| 547 |
} |
| 548 |
} |
| 549 |
|
