<?php
namespace AskTamMCP\Tools;
defined('ABSPATH') || exit;

class TaxonomyTools {
    public static function listTerms(array $args): array {
        $terms = get_terms(['taxonomy'=>$args['taxonomy'],'hide_empty'=>false,'parent'=>$args['parent']??'','search'=>$args['search']??'','number'=>(int)($args['per_page']??50)]);
        if (is_wp_error($terms)) throw new \RuntimeException($terms->get_error_message());
        return ['terms'=>array_map(fn($t)=>['id'=>$t->term_id,'name'=>$t->name,'slug'=>$t->slug,'count'=>$t->count,'parent'=>$t->parent],$terms),'total'=>count($terms)];
    }
    public static function createTerm(array $args): array {
        $r = wp_insert_term($args['name'],$args['taxonomy'],['slug'=>$args['slug']??'','description'=>$args['description']??'','parent'=>$args['parent']??0]);
        if (is_wp_error($r)) throw new \RuntimeException($r->get_error_message());
        return ['id'=>$r['term_id'],'name'=>$args['name'],'taxonomy'=>$args['taxonomy']];
    }
    public static function updateTerm(array $args): array {
        $r = wp_update_term((int)$args['term_id'],$args['taxonomy'],array_filter(['name'=>$args['name']??null,'slug'=>$args['slug']??null,'description'=>$args['description']??null,'parent'=>$args['parent']??null],fn($v)=>$v!==null));
        if (is_wp_error($r)) throw new \RuntimeException($r->get_error_message());
        return ['id'=>(int)$args['term_id'],'updated'=>true];
    }
    public static function deleteTerm(array $args): array {
        $r = wp_delete_term((int)$args['term_id'],$args['taxonomy']);
        if (is_wp_error($r)) throw new \RuntimeException($r->get_error_message());
        return ['id'=>(int)$args['term_id'],'deleted'=>true];
    }
    public static function countTerms(array $args): array {
        $count = wp_count_terms(['taxonomy'=>$args['taxonomy']??'category']);
        return ['taxonomy'=>$args['taxonomy'],'count'=>(int)$count];
    }
}