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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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|
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class AIEdit extends BaseAPI { |
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|
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const MAX_SELECTION_LENGTH = 12000; |
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const MAX_INSTRUCTION_LENGTH = 1000; |
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|
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public function register() { |
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$this->post( |
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'/ai-edit', |
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[ $this, 'generate' ], |
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[ |
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'post_id' => [ |
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'type' => 'integer', |
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'required' => true |
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], |
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'action' => [ |
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'type' => 'string', |
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'required' => true |
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], |
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'selection' => [ |
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'type' => 'string', |
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'required' => false, |
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'default' => '' |
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], |
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'selection_type' => [ |
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'type' => 'string', |
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'required' => false, |
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'default' => 'block' |
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], |
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'instruction' => [ |
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'type' => 'string', |
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'required' => false, |
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'default' => '' |
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], |
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'option' => [ |
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'type' => 'string', |
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'required' => false, |
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'default' => '' |
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] |
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] |
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); |
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} |
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|
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public function permission_check() { |
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$post_id = isset( $_REQUEST['post_id'] ) ? intval( $_REQUEST['post_id'] ) : 0; |
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|
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if ( $post_id <= 0 ) { |
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return current_user_can( 'edit_posts' ); |
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} |
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|
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return current_user_can( 'edit_post', $post_id ); |
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} |
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|
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public function generate( WP_REST_Request $request ) { |
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$write_ai = betterdocs()->ai_autowrtie; |
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|
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if ( empty( $write_ai ) || ! $write_ai->isEnabledWriteWithAI() ) { |
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return $this->error( |
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'ai_disabled', |
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__( 'Write with AI is disabled. Enable it from BetterDocs settings.', 'betterdocs' ), |
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400 |
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); |
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} |
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|
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$api_key = $write_ai->get_api_key(); |
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if ( empty( $api_key ) ) { |
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return $this->error( |
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'ai_no_key', |
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__( 'OpenAI API key is missing. Add one in BetterDocs settings.', 'betterdocs' ), |
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400 |
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); |
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} |
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|
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$action = sanitize_key( (string) $request->get_param( 'action' ) ); |
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$selection_type = sanitize_key( (string) $request->get_param( 'selection_type' ) ); |
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$selection = (string) $request->get_param( 'selection' ); |
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$instruction = (string) $request->get_param( 'instruction' ); |
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$option = sanitize_text_field( (string) $request->get_param( 'option' ) ); |
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|
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if ( strlen( $selection ) > self::MAX_SELECTION_LENGTH ) { |
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$selection = substr( $selection, 0, self::MAX_SELECTION_LENGTH ); |
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} |
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if ( strlen( $instruction ) > self::MAX_INSTRUCTION_LENGTH ) { |
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$instruction = substr( $instruction, 0, self::MAX_INSTRUCTION_LENGTH ); |
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} |
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|
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$instruction = wp_kses_post( $instruction ); |
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$selection = wp_kses_post( $selection ); |
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|
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if ( $selection_type !== 'inline' ) { |
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$selection_type = 'block'; |
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} |
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|
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$presets = self::get_presets(); |
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|
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if ( $action !== 'custom' && ! isset( $presets[ $action ] ) ) { |
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return $this->error( |
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'ai_bad_action', |
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__( 'Unknown AI action.', 'betterdocs' ), |
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400 |
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); |
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} |
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|
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if ( trim( wp_strip_all_tags( $instruction ) ) === '' ) { |
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return $this->error( |
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'ai_empty_instruction', |
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__( 'Please provide a prompt for the AI.', 'betterdocs' ), |
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400 |
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); |
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} |
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|
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if ( trim( wp_strip_all_tags( $selection ) ) === '' && $action !== 'continue' ) { |
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return $this->error( |
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'ai_empty_selection', |
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__( 'No content selected for the AI to work on.', 'betterdocs' ), |
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400 |
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); |
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} |
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|
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$prompt = $this->build_prompt( $action, $presets, $selection, $selection_type, $instruction, $option ); |
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|
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$result = $write_ai->generate_openai_response_full( $prompt ); |
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|
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if ( empty( $result['success'] ) ) { |
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$message = isset( $result['error'] ) ? (string) $result['error'] : __( 'Unknown AI error.', 'betterdocs' ); |
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return $this->error( 'ai_upstream', $message, 502 ); |
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} |
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|
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$content = $this->clean_output( (string) $result['content'] ); |
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|
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if ( $content === '' ) { |
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return $this->error( |
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'ai_empty_response', |
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__( 'The AI returned no content. Try again or rephrase your instruction.', 'betterdocs' ), |
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502 |
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); |
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} |
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|
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return $this->success( |
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[ |
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'content' => $content, |
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'action' => $action, |
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'usage' => [ |
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'prompt_tokens' => isset( $result['prompt_tokens'] ) ? $result['prompt_tokens'] : null, |
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'completion_tokens' => isset( $result['completion_tokens'] ) ? $result['completion_tokens'] : null, |
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'total_tokens' => isset( $result['total_tokens'] ) ? $result['total_tokens'] : null, |
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], |
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'model' => isset( $result['model'] ) ? $result['model'] : null, |
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] |
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); |
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} |
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|
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protected function build_prompt( $action, $presets, $selection, $selection_type, $instruction, $option ) { |
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$core = trim( $instruction ); |
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|
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$preset = $action !== 'custom' && isset( $presets[ $action ] ) ? $presets[ $action ] : null; |
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$format_hint = isset( $preset['format'] ) && $preset['format'] |
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? $preset['format'] |
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: ( $selection_type === 'inline' |
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? __( 'Return only plain text (no block markup, no quotes, no explanations).', 'betterdocs' ) |
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: __( 'Return only valid Gutenberg-compatible HTML using standard tags such as <p>, <h2>, <ul>, <ol>, <li>, <strong>, <em>, <a>, <code>. Do not include explanations, preambles, code fences, or markdown.', 'betterdocs' ) ); |
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|
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$prompt = $core . "\n\n"; |
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$prompt .= __( 'Formatting requirements:', 'betterdocs' ) . ' ' . $format_hint . "\n\n"; |
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$prompt .= __( 'Content to work on:', 'betterdocs' ) . "\n"; |
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$prompt .= "---\n" . $selection . "\n---"; |
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|
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return $prompt; |
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} |
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|
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protected function clean_output( $content ) { |
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$content = trim( $content ); |
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|
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$content = preg_replace( '/^```(?:html|HTML)?\s*\n?/', '', $content ); |
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$content = preg_replace( '/\n?```\s*$/', '', $content ); |
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|
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return trim( $content ); |
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} |
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|
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public static function get_presets() { |
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return [ |
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'improve' => [ |
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'prompt' => 'Improve the writing quality, clarity, grammar, and structure of the content below while preserving its original meaning and intent.' |
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], |
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'rewrite' => [ |
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'prompt' => 'Rewrite the content below with different wording while keeping the same meaning, tone, and level of detail.' |
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], |
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'shorten' => [ |
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'prompt' => 'Make the content below more concise. Preserve all essential information; remove redundancy and filler.' |
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], |
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'expand' => [ |
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'prompt' => 'Expand the content below with more detail, examples, and clear explanations. Keep the original voice.' |
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], |
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'simplify' => [ |
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'prompt' => 'Rewrite the content below in simpler language so it is easy to understand for a non-technical reader.' |
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], |
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'fix_grammar' => [ |
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'prompt' => 'Fix only the grammar, spelling, and punctuation in the content below. Do not rewrite or change the meaning or style.' |
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], |
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'change_tone' => [ |
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'prompt' => 'Rewrite the content below in a {option} tone while preserving its meaning.', |
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'needs_option' => true |
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], |
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'translate' => [ |
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'prompt' => 'Translate the content below into {option}. Preserve meaning, tone, and any HTML structure.', |
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'needs_option' => true |
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], |
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'summarize' => [ |
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'prompt' => 'Summarize the content below into 2 to 3 clear sentences.' |
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], |
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'continue' => [ |
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'prompt' => 'Continue writing naturally from where the content below ends. Match its tone, style, and level of detail.' |
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], |
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'create_table' => [ |
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'prompt' => 'Extract the statistics, figures, or comparable data from the content below and represent them as a single HTML table. Infer clear column headers. Include every distinct data point. If no tabular data can be reasonably inferred, return the best possible structured representation.', |
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'format' => 'Return only one complete <table> element with <thead> and <tbody>. Use <th scope="col"> for header cells. Do not include <style>, <script>, inline CSS classes, comments, explanations, preambles, code fences, or markdown.' |
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] |
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]; |
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} |
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} |
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|
