<?php
use App\ModuleConfigException;

$moduleName = 'pihole';
$mm = isset($modules) && $modules instanceof App\ModuleManager ? $modules : modules();

$mm->registerFunction($moduleName, 'settings', function () use ($moduleName): array {
    return modules()->settings($moduleName);
});

$mm->registerFunction($moduleName, 'instances', function () use ($moduleName): array {
    $settings = modules()->settings($moduleName);
    $apiPath = trim((string)($settings['api_path'] ?? '/admin/api.php'));
    if ($apiPath === '') {
        $apiPath = '/admin/api.php';
    }
    if ($apiPath[0] !== '/') {
        $apiPath = '/' . $apiPath;
    }

    $timeout = (int)($settings['api_timeout_sec'] ?? 8);
    if ($timeout <= 0) {
        $timeout = 8;
    }

    $verifyTls = !isset($settings['verify_tls']) || $settings['verify_tls'] === '1' || $settings['verify_tls'] === 1 || $settings['verify_tls'] === true;

    $instances = [];

    $rawJson = trim((string)($settings['instances_json'] ?? ''));
    if ($rawJson !== '') {
        $decoded = json_decode($rawJson, true);
        if (is_array($decoded)) {
            foreach ($decoded as $row) {
                if (!is_array($row)) {
                    continue;
                }
                $id = trim((string)($row['id'] ?? ''));
                $url = trim((string)($row['url'] ?? ''));
                if ($id === '' || $url === '') {
                    continue;
                }
                $instances[$id] = [
                    'id' => $id,
                    'name' => trim((string)($row['name'] ?? '')) ?: $id,
                    'url' => rtrim($url, '/'),
                    'token' => trim((string)($row['token'] ?? '')),
                    'api_path' => $apiPath,
                    'timeout' => $timeout,
                    'verify_tls' => $verifyTls,
                    'is_primary' => !empty($row['is_primary']),
                ];
            }
        }
    }

    if (empty($instances)) {
        foreach (['primary', 'secondary'] as $key) {
            $urlKey = $key . '_url';
            $tokenKey = $key . '_token';
            $nameKey = $key . '_name';
            $url = trim((string)($settings[$urlKey] ?? ''));
            if ($url === '') {
                continue;
            }
            $instances[$key] = [
                'id' => $key,
                'name' => trim((string)($settings[$nameKey] ?? '')) ?: ($key === 'primary' ? 'Primaer' : 'Sekundaer'),
                'url' => rtrim($url, '/'),
                'token' => trim((string)($settings[$tokenKey] ?? '')),
                'api_path' => $apiPath,
                'timeout' => $timeout,
                'verify_tls' => $verifyTls,
                'is_primary' => $key === 'primary',
            ];
        }
    }

    $primaryId = trim((string)($settings['primary_id'] ?? ''));
    if ($primaryId !== '' && isset($instances[$primaryId])) {
        foreach ($instances as $id => &$row) {
            $row['is_primary'] = ($id === $primaryId);
        }
        unset($row);
    } else {
        $hasPrimary = false;
        foreach ($instances as $row) {
            if (!empty($row['is_primary'])) {
                $hasPrimary = true;
                break;
            }
        }
        if (!$hasPrimary && $instances) {
            $firstKey = array_key_first($instances);
            if ($firstKey !== null) {
                $instances[$firstKey]['is_primary'] = true;
            }
        }
    }

    return $instances;
});

$mm->registerFunction($moduleName, 'lists_primary_only', function () use ($moduleName): bool {
    $settings = modules()->settings($moduleName);
    return !empty($settings['lists_primary_only']);
});