46fda89e18
New internal plugin: weekly LLM probes of core peptides (Perplexity sonar + GPT/Gemini-search via OpenRouter/CF gateway) -> custom table -> wp-admin trendline + standings. Provider interface + cost ledger w/ hard $5/mo cap + collector/panel seam (AI-visibility only). v1 = AI-visibility only. QA: APPROVE-WITH-P2-NOTES — qa-reviews/peptide-geo-monitor/2026-06-13-f488f4a966cbb9e771d3abc20daee3fa49074520.md (P2 follow-ups: ltrim www display bug, PHPCS mandatory, dead cache) Agent-Session: geomonitor v0.1.0 merge
81 lines
2.2 KiB
PHP
81 lines
2.2 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* Detects whether peptiderepo.com appears in a list of source domains.
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*
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* Centralises the citation-detection logic so both providers can share it
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* without duplication. Also parses raw citation arrays/URLs into a clean
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* domain list.
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*
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* Who triggers: PGM_Perplexity_Provider, PGM_OpenRouter_Provider.
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* Dependencies: None (pure PHP).
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*
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* @see CONTEXT.md — "cited", "our_position", "source_domains".
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* @package PeptideGeoMonitor
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*/
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class PGM_Citation_Detector {
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/**
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* Parse raw citation data from an API response into a clean domain list.
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*
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* Accepts either a flat array of URL strings or an array of objects with
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* a 'url' key (Perplexity style). Unknown shapes are skipped gracefully.
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*
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* @param array<mixed> $raw_citations Raw citations from the API response.
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*
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* @return string[] Lowercase domain names (e.g. ['peptiderepo.com', 'examine.com']).
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*/
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public function parse_domains( array $raw_citations ): array {
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$domains = array();
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foreach ( $raw_citations as $item ) {
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$url = '';
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if ( is_string( $item ) ) {
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$url = $item;
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} elseif ( is_array( $item ) && isset( $item['url'] ) && is_string( $item['url'] ) ) {
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$url = $item['url'];
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}
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if ( '' === $url ) {
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continue;
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}
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$host = (string) wp_parse_url( $url, PHP_URL_HOST );
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if ( '' !== $host ) {
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$domains[] = strtolower( ltrim( $host, 'www.' ) );
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}
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}
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return array_values( array_unique( $domains ) );
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}
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/**
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* Detect whether PGM_TARGET_DOMAIN appears in a domain list.
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*
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* @param string[] $domains Parsed domain list from parse_domains().
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*
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* @return bool
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*/
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public function is_cited( array $domains ): bool {
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return in_array( PGM_TARGET_DOMAIN, $domains, true );
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}
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/**
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* Find the 1-based position of PGM_TARGET_DOMAIN in a domain list.
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*
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* Returns null when the target domain is not found.
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*
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* @param string[] $domains Parsed domain list.
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*
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* @return int|null
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*/
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public function get_our_position( array $domains ): ?int {
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$pos = array_search( PGM_TARGET_DOMAIN, $domains, true );
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if ( false === $pos ) {
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return null;
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}
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return (int) $pos + 1; // Convert 0-based index to 1-based position.
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}
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}
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