<?php
header("Content-Type: application/json");
$out = [];

// Widget / root index
$root = @file_get_contents("/var/www/html/index.html");
$out["root_size"] = strlen($root ?? "");
$out["widget_has_sessionstorage"] = strpos($root ?? "", "sessionStorage") !== false;
$out["widget_has_localstorage"] = strpos($root ?? "", "localStorage") !== false;
$out["widget_has_wevia"] = preg_match_all("/wevia/i", $root ?? "");

// Widget bubbler for persistent backend  
$wevia_public = @file_get_contents("/var/www/html/wevia.html");
$out["wevia_public_size"] = strlen($wevia_public ?? "");
$out["wevia_has_sessionstorage"] = strpos($wevia_public ?? "", "sessionStorage") !== false;
$out["wevia_has_session_id"] = strpos($wevia_public ?? "", "_ambre_session_id") !== false;

// Session-chat backend stores memory how
$sc = @file_get_contents("/var/www/html/api/ambre-session-chat.php");
$out["session_chat_size"] = strlen($sc ?? "");
$out["session_chat_storage"] = [];
if ($sc) {
    if (strpos($sc, "file_put_contents") !== false) $out["session_chat_storage"][] = "file";
    if (strpos($sc, "sqlite") !== false) $out["session_chat_storage"][] = "sqlite";
    if (strpos($sc, "redis") !== false) $out["session_chat_storage"][] = "redis";
    // Find TTL
    if (preg_match("/(\d{4,}).*TTL|TTL.*?(\d+)/i", $sc, $m)) $out["session_chat_ttl"] = $m[0];
}

// Sessions directory
$out["sessions_dir"] = [
    "exists" => is_dir("/var/www/html/generated/sessions"),
    "count" => count(glob("/var/www/html/generated/sessions/*.json") ?: []),
];

echo json_encode($out, JSON_PRETTY_PRINT|JSON_UNESCAPED_SLASHES);