<?php
// Plugin runtime loader — autodiscovery /opt/weval-plugins/*/plugin.json
// Called from wevia_opus_intents() via wevia_plugin_intents($msg)
function wevia_plugin_intents($msg) {
    static $plugins_cache = null;
    static $cache_ts = 0;
    
    // Reload cache every 60s (lightweight discovery)
    if ($plugins_cache === null || (time() - $cache_ts) > 60) {
        $plugins_cache = [];
        $cache_ts = time();
        $store = "/opt/weval-plugins";
        if (is_dir($store)) {
            foreach (scandir($store) as $d) {
                if ($d === '.' || $d === '..') continue;
                $meta = "$store/$d/plugin.json";
                if (!file_exists($meta)) continue;
                $p = json_decode(@file_get_contents($meta), true);
                if (!$p || empty($p['intents'])) continue;
                foreach ($p['intents'] as $intent) {
                    if (empty($intent['name']) || empty($intent['trigger_regex']) || empty($intent['script'])) continue;
                    $script_path = "$store/$d/" . $intent['script'];
                    if (!file_exists($script_path) || !is_executable($script_path)) continue;
                    $plugins_cache[] = [
                        'name' => $intent['name'],
                        'regex' => $intent['trigger_regex'],
                        'script' => $script_path,
                        'plugin' => $p['name']
                    ];
                }
            }
        }
    }
    
    $m = mb_strtolower(trim($msg));
    foreach ($plugins_cache as $p) {
        if (@preg_match('/' . $p['regex'] . '/iu', $m)) {
            $out = trim(@shell_exec(escapeshellcmd($p['script']) . ' 2>&1'));
            return [
                "provider" => "plugin-store",
                "content" => "PLUGIN [{$p['plugin']}::{$p['name']}]:\n" . $out,
                "tool" => "plugin-store",
                "plugin" => $p['plugin']
            ];
        }
    }
    return null;
}