| 1 |
<?php |
| 2 |
|
| 3 |
namespace WPDeveloper\BetterDocs\REST; |
| 4 |
|
| 5 |
use WP_REST_Request; |
| 6 |
use WPDeveloper\BetterDocs\Core\BaseAPI; |
| 7 |
use WPDeveloper\BetterDocs\Utils\AIUsage; |
| 8 |
|
| 9 |
class AIEdit extends BaseAPI { |
| 10 |
|
| 11 |
const MAX_SELECTION_LENGTH = 12000; |
| 12 |
const MAX_INSTRUCTION_LENGTH = 1000; |
| 13 |
|
| 14 |
public function register() { |
| 15 |
$this->post( |
| 16 |
'/ai-edit', |
| 17 |
array( $this, 'generate' ), |
| 18 |
array( |
| 19 |
'post_id' => array( |
| 20 |
'type' => 'integer', |
| 21 |
'required' => true |
| 22 |
), |
| 23 |
'action' => array( |
| 24 |
'type' => 'string', |
| 25 |
'required' => true |
| 26 |
), |
| 27 |
'selection' => array( |
| 28 |
'type' => 'string', |
| 29 |
'required' => false, |
| 30 |
'default' => '' |
| 31 |
), |
| 32 |
'selection_type' => array( |
| 33 |
'type' => 'string', |
| 34 |
'required' => false, |
| 35 |
'default' => 'block' |
| 36 |
), |
| 37 |
'instruction' => array( |
| 38 |
'type' => 'string', |
| 39 |
'required' => false, |
| 40 |
'default' => '' |
| 41 |
), |
| 42 |
'option' => array( |
| 43 |
'type' => 'string', |
| 44 |
'required' => false, |
| 45 |
'default' => '' |
| 46 |
) |
| 47 |
) |
| 48 |
); |
| 49 |
} |
| 50 |
|
| 51 |
public function permission_check() { |
| 52 |
$post_id = isset( $_REQUEST[ 'post_id' ] ) ? intval( $_REQUEST[ 'post_id' ] ) : 0; // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- REST permission_check; read-only id, request auth handled by the route's permission_callback. |
| 53 |
|
| 54 |
if ( $post_id <= 0 ) { |
| 55 |
return current_user_can( 'edit_posts' ); |
| 56 |
} |
| 57 |
|
| 58 |
return current_user_can( 'edit_post', $post_id ); |
| 59 |
} |
| 60 |
|
| 61 |
public function generate( WP_REST_Request $request ) { |
| 62 |
$write_ai = betterdocs()->ai_autowrtie; |
| 63 |
|
| 64 |
if ( empty( $write_ai ) || ! $write_ai->isEnabledWriteWithAI() ) { |
| 65 |
return $this->error( |
| 66 |
'ai_disabled', |
| 67 |
__( 'Write with AI is disabled. Enable it from BetterDocs settings.', 'betterdocs' ), |
| 68 |
400 |
| 69 |
); |
| 70 |
} |
| 71 |
|
| 72 |
$api_key = $write_ai->get_api_key(); |
| 73 |
if ( empty( $api_key ) ) { |
| 74 |
return $this->error( |
| 75 |
'ai_no_key', |
| 76 |
__( 'OpenAI API key is missing. Add one in BetterDocs settings.', 'betterdocs' ), |
| 77 |
400 |
| 78 |
); |
| 79 |
} |
| 80 |
|
| 81 |
$action = sanitize_key( (string) $request->get_param( 'action' ) ); |
| 82 |
$selection_type = sanitize_key( (string) $request->get_param( 'selection_type' ) ); |
| 83 |
$selection = (string) $request->get_param( 'selection' ); |
| 84 |
$instruction = (string) $request->get_param( 'instruction' ); |
| 85 |
$option = sanitize_text_field( (string) $request->get_param( 'option' ) ); |
| 86 |
|
| 87 |
if ( strlen( $selection ) > self::MAX_SELECTION_LENGTH ) { |
| 88 |
$selection = substr( $selection, 0, self::MAX_SELECTION_LENGTH ); |
| 89 |
} |
| 90 |
if ( strlen( $instruction ) > self::MAX_INSTRUCTION_LENGTH ) { |
| 91 |
$instruction = substr( $instruction, 0, self::MAX_INSTRUCTION_LENGTH ); |
| 92 |
} |
| 93 |
|
| 94 |
$instruction = wp_kses_post( $instruction ); |
| 95 |
$selection = wp_kses_post( $selection ); |
| 96 |
|
| 97 |
if ( 'inline' !== $selection_type ) { |
| 98 |
$selection_type = 'block'; |
| 99 |
} |
| 100 |
|
| 101 |
$presets = self::get_presets(); |
| 102 |
|
| 103 |
if ( 'custom' !== $action && ! isset( $presets[ $action ] ) ) { |
| 104 |
return $this->error( |
| 105 |
'ai_bad_action', |
| 106 |
__( 'Unknown AI action.', 'betterdocs' ), |
| 107 |
400 |
| 108 |
); |
| 109 |
} |
| 110 |
|
| 111 |
if ( trim( wp_strip_all_tags( $instruction ) ) === '' ) { |
| 112 |
return $this->error( |
| 113 |
'ai_empty_instruction', |
| 114 |
__( 'Please provide a prompt for the AI.', 'betterdocs' ), |
| 115 |
400 |
| 116 |
); |
| 117 |
} |
| 118 |
|
| 119 |
if ( trim( wp_strip_all_tags( $selection ) ) === '' && 'continue' !== $action ) { |
| 120 |
return $this->error( |
| 121 |
'ai_empty_selection', |
| 122 |
__( 'No content selected for the AI to work on.', 'betterdocs' ), |
| 123 |
400 |
| 124 |
); |
| 125 |
} |
| 126 |
|
| 127 |
$prompt = $this->build_prompt( $action, $presets, $selection, $selection_type, $instruction, $option ); |
| 128 |
|
| 129 |
$result = $write_ai->generate_openai_response_ai_edit( $prompt ); |
| 130 |
|
| 131 |
if ( empty( $result[ 'success' ] ) ) { |
| 132 |
$message = isset( $result[ 'error' ] ) ? (string) $result[ 'error' ] : __( 'Unknown AI error.', 'betterdocs' ); |
| 133 |
return $this->error( 'ai_upstream', $message, 502 ); |
| 134 |
} |
| 135 |
|
| 136 |
$content = $this->clean_output( (string) $result[ 'content' ] ); |
| 137 |
|
| 138 |
if ( '' === $content ) { |
| 139 |
return $this->error( |
| 140 |
'ai_empty_response', |
| 141 |
__( 'The AI returned no content. Try again or rephrase your instruction.', 'betterdocs' ), |
| 142 |
502 |
| 143 |
); |
| 144 |
} |
| 145 |
|
| 146 |
AIUsage::record( 'ai_edit', (int) $request->get_param( 'post_id' ), $action ); |
| 147 |
|
| 148 |
return $this->success( |
| 149 |
array( |
| 150 |
'content' => $content, |
| 151 |
'action' => $action, |
| 152 |
'usage' => array( |
| 153 |
'prompt_tokens' => isset( $result[ 'prompt_tokens' ] ) ? $result[ 'prompt_tokens' ] : null, |
| 154 |
'completion_tokens' => isset( $result[ 'completion_tokens' ] ) ? $result[ 'completion_tokens' ] : null, |
| 155 |
'total_tokens' => isset( $result[ 'total_tokens' ] ) ? $result[ 'total_tokens' ] : null |
| 156 |
), |
| 157 |
'model' => isset( $result[ 'model' ] ) ? $result[ 'model' ] : null |
| 158 |
) |
| 159 |
); |
| 160 |
} |
| 161 |
|
| 162 |
protected function build_prompt( $action, $presets, $selection, $selection_type, $instruction, $option ) { |
| 163 |
$core = trim( $instruction ); |
| 164 |
|
| 165 |
$preset = 'custom' !== $action && isset( $presets[ $action ] ) ? $presets[ $action ] : null; |
| 166 |
$format_hint = isset( $preset[ 'format' ] ) && $preset[ 'format' ] |
| 167 |
? $preset[ 'format' ] |
| 168 |
: ( 'inline' === $selection_type ? __( 'Return only plain text (no block markup, no quotes, no explanations).', 'betterdocs' ) |
| 169 |
: __( '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' ) ); |
| 170 |
|
| 171 |
$prompt = $core . "\n\n"; |
| 172 |
$prompt .= __( 'Formatting requirements:', 'betterdocs' ) . ' ' . $format_hint . "\n\n"; |
| 173 |
$prompt .= __( 'Content to work on:', 'betterdocs' ) . "\n"; |
| 174 |
$prompt .= "---\n" . $selection . "\n---"; |
| 175 |
|
| 176 |
return $prompt; |
| 177 |
} |
| 178 |
|
| 179 |
protected function clean_output( $content ) { |
| 180 |
$content = trim( $content ); |
| 181 |
|
| 182 |
$content = preg_replace( '/^```(?:html|HTML)?\s*\n?/', '', $content ); |
| 183 |
$content = preg_replace( '/\n?```\s*$/', '', $content ); |
| 184 |
|
| 185 |
return trim( $content ); |
| 186 |
} |
| 187 |
|
| 188 |
public static function get_presets() { |
| 189 |
return array( |
| 190 |
'improve' => array( |
| 191 |
'prompt' => 'Improve the writing quality, clarity, grammar, and structure of the content below while preserving its original meaning and intent.' |
| 192 |
), |
| 193 |
'rewrite' => array( |
| 194 |
'prompt' => 'Rewrite the content below with different wording while keeping the same meaning, tone, and level of detail.' |
| 195 |
), |
| 196 |
'shorten' => array( |
| 197 |
'prompt' => 'Make the content below more concise. Preserve all essential information; remove redundancy and filler.' |
| 198 |
), |
| 199 |
'expand' => array( |
| 200 |
'prompt' => 'Expand the content below with more detail, examples, and clear explanations. Keep the original voice.' |
| 201 |
), |
| 202 |
'simplify' => array( |
| 203 |
'prompt' => 'Rewrite the content below in simpler language so it is easy to understand for a non-technical reader.' |
| 204 |
), |
| 205 |
'fix_grammar' => array( |
| 206 |
'prompt' => 'Fix only the grammar, spelling, and punctuation in the content below. Do not rewrite or change the meaning or style.' |
| 207 |
), |
| 208 |
'change_tone' => array( |
| 209 |
'prompt' => 'Rewrite the content below in a {option} tone while preserving its meaning.', |
| 210 |
'needs_option' => true |
| 211 |
), |
| 212 |
'translate' => array( |
| 213 |
'prompt' => 'Translate the content below into {option}. Preserve meaning, tone, and any HTML structure.', |
| 214 |
'needs_option' => true |
| 215 |
), |
| 216 |
'summarize' => array( |
| 217 |
'prompt' => 'Summarize the content below into 2 to 3 clear sentences.' |
| 218 |
), |
| 219 |
'continue' => array( |
| 220 |
'prompt' => 'Continue writing naturally from where the content below ends. Match its tone, style, and level of detail.' |
| 221 |
), |
| 222 |
'create_table' => array( |
| 223 |
'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.', |
| 224 |
'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.' |
| 225 |
) |
| 226 |
); |
| 227 |
} |
| 228 |
} |
| 229 |
|
