<?php
// FINAL TWO-TIER: FS + URL - prevents APP_ROOT vs APP_URL bug

if (!defined('APP_ROOT')) {
    $BASE_ROOT_FS = '/Users/rbutare/websites';
    $SYSTEM_ROOT_FS = $BASE_ROOT_FS . '/system';
    $APPS_ROOT_FS = $BASE_ROOT_FS . '/apps';

    $BASE_URL = '/'; // rickweb docroot = websites/
    $SYSTEM_URL = '/system';
    $APPS_URL = '/apps';

    if (!function_exists('_load_env')) {
        function _load_env($f, &$e)
        {
            if (!is_file($f) || !is_readable($f)) {
                return;
            }

            $fh = fopen($f, 'r');
            if ($fh === false) {
                return;
            }

            while (($l = fgets($fh)) !== false) {
                $l = trim($l);
                if ($l === '' || $l[0] === '#') {
                    continue;
                }

                $eq = strpos($l, '=');
                if ($eq === false || $eq === 0) {
                    continue;
                }

                $k = trim(substr($l, 0, $eq));
                $v = trim(substr($l, $eq + 1), "\"' ");

                // Accept uppercase keys with underscores/digits.
                if (strspn($k, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_0123456789') !== strlen($k)) {
                    continue;
                }

                $baseRoot = $e['BASE_ROOT'] ?? '/Users/rbutare/websites';
                $v = str_replace(['$BASE_ROOT', '${BASE_ROOT}'], [$baseRoot, $baseRoot], $v);
                $e[$k] = $v;
            }

            fclose($fh);
        }
    }

    $env = [
        'BASE_ROOT' => $BASE_ROOT_FS,
        'SYSTEM_ROOT' => $SYSTEM_ROOT_FS,
        'APPS_ROOT' => $APPS_ROOT_FS,
        'APP_ROOT' => $APPS_ROOT_FS . '/defapp',
        'APP_HOME' => $APPS_ROOT_FS . '/defapp',
    ];

    _load_env($SYSTEM_ROOT_FS . '/.env', $env);

    // Faster than debug_backtrace for normal HTTP/CLI entrypoints.
    $caller = $_SERVER['SCRIPT_FILENAME'] ?? __FILE__;
    $APP_NAME = $env['APP_NAME'] ?? 'aiwizard';
    if (preg_match('#/apps/([^/]+)#', $caller, $m)) {
        $APP_NAME = $m[1];
    }

    $APP_ROOT_FS = $APPS_ROOT_FS . '/' . $APP_NAME;
    _load_env($APP_ROOT_FS . '/.env', $env);

    $resolvedAppRoot = $APP_ROOT_FS;
    $envAppRoot = $env['APP_HOME'] ?? ($env['APP_ROOT'] ?? '');
    if (is_string($envAppRoot) && $envAppRoot !== '') {
        $envAppRoot = rtrim($envAppRoot, '/');
        $expectedRoot = $APPS_ROOT_FS . '/' . $APP_NAME;
        if ($envAppRoot === $expectedRoot || str_starts_with($envAppRoot, $expectedRoot . '/')) {
            $resolvedAppRoot = $envAppRoot;
        }
    }

    define('BASE_ROOT', $env['BASE_ROOT'] ?? $BASE_ROOT_FS);
    define('SYSTEM_ROOT', $SYSTEM_ROOT_FS);
    define('APPS_ROOT', $APPS_ROOT_FS);
    define('APP_ROOT', $resolvedAppRoot);
    define('PROJECT_ROOT', APP_ROOT);
    define('APP_NAME', $env['APP_NAME'] ?? $APP_NAME);
    define('APP_HOME', APP_ROOT);
    define('DEFAULT_APP_VERSION', $env['DEFAULT_APP_VERSION'] ?? 'v1.0.0');
    define('DB_HOST', $env['DB_HOST'] ?? 'localhost');
    define('DB_NAME', $env['DB_NAME'] ?? '');
    define('DB_USER', $env['DB_USER'] ?? '');
    define('DB_PASS', $env['DB_PASS'] ?? '');

    define('BASE_URL', $BASE_URL);
    define('SYSTEM_URL', $SYSTEM_URL);
    define('APPS_URL', $APPS_URL);
    define('APP_URL', APPS_URL . '/' . APP_NAME);
    define('ADMIN_URL', APP_URL . '/admin');
    define('PAGES_URL', APP_URL . '/pages');

    // Rule #1 enforcement marker: lets auth.php (and anything else
    // security-sensitive) refuse to run if it's ever included before this
    // file finishes — see GOLDEN_RULES: "No hardcoded paths, ever".
    define('BOOTSTRAP_LOADED', true);

    // Optional diagnostics file write: disabled by default for performance.
    if (($env['PATHS_WRITE_JSON'] ?? 'false') === 'true') {
        @file_put_contents(
            SYSTEM_ROOT . '/php/paths.json',
            json_encode(['BASE_URL' => BASE_URL, 'APP_URL' => APP_URL, 'APP_NAME' => APP_NAME], JSON_PRETTY_PRINT)
        );
    }
}

if (!function_exists('sys_include')) {
    function sys_include($p)
    {
        $p = ltrim($p, '/');
        foreach ([APP_ROOT . '/' . $p, APP_ROOT . '/templates/' . basename($p), SYSTEM_ROOT . '/' . $p] as $c) {
            if (file_exists($c)) {
                return $c;
            }
        }
        return APP_ROOT . '/' . $p;
    }
}

if (!function_exists('app_url')) {
    function app_url($path = '')
    {
        $path = ltrim($path, '/');
        return APP_URL . '/' . $path;
    }
}

if (!function_exists('app_path')) {
    function app_path($path = '')
    {
        $path = ltrim($path, '/');
        return APP_ROOT . '/' . $path;
    }
}