<?php
/**
 * Shared CLI bootstrap for the tools in this directory.
 *
 * Locates the app root the same way public/index.php does (config.php + vendor/autoload.php +
 * src/Config.php, probing the private container first), so a tool run from the delivered
 * package finds the same config the web app uses. Returns [Config, PDO].
 *
 * CLI ONLY: these tools write to the database. Refuse to run over the web, where an operator
 * could be tricked into hitting them with a browser.
 */
declare(strict_types=1);

if (PHP_SAPI !== 'cli') {
    http_response_code(404);
    exit;
}

const APP_PRIVATE_DIR = 'move_detect_app';

function tool_app_root(): string
{
    $isAppRoot = static fn (string $d): bool =>
        is_file($d . '/config.php')
        && is_file($d . '/vendor/autoload.php')
        && is_file($d . '/src/Config.php');

    for ($dir = dirname(__DIR__), $i = 0; $i < 4; $i++) {
        foreach ([$dir . '/' . APP_PRIVATE_DIR, $dir] as $candidate) {
            if ($isAppRoot($candidate)) return $candidate;
        }
        if (dirname($dir) === $dir) break;
        $dir = dirname($dir);
    }
    fwrite(STDERR, "config.php / vendor/autoload.php / src/Config.php 를 찾지 못했습니다.\n");
    exit(1);
}

/** @return array{0: \App\Config, 1: \PDO} */
function tool_boot(): array
{
    $root = tool_app_root();
    require_once $root . '/vendor/autoload.php';
    $cfg = \App\Config::fromArray(require $root . '/config.php');
    return [$cfg, \App\Db\Database::connect($cfg)];
}

/** Parse `--key=value` / `--flag` argv into an array. */
function tool_args(array $argv): array
{
    $out = [];
    foreach (array_slice($argv, 1) as $a) {
        if (!str_starts_with($a, '--')) continue;
        $a = substr($a, 2);
        if (str_contains($a, '=')) {
            [$k, $v] = explode('=', $a, 2);
            $out[$k] = $v;
        } else {
            $out[$a] = true;
        }
    }
    return $out;
}

/** true when the DSN targets sqlite — a few statements differ and the tools must not guess. */
function tool_is_sqlite(\PDO $pdo): bool
{
    return $pdo->getAttribute(\PDO::ATTR_DRIVER_NAME) === 'sqlite';
}