<?php
$config = require __DIR__ . '/config.php';
require __DIR__ . '/lib/PayPalClient.php';
require __DIR__ . '/lib/Storage.php';

header('Content-Type: text/plain');

try {
    $client = new PayPalClient($config);
    $storage = new Storage($config['storage_path']);

    echo "Partner diagnostics\n\n";
    echo "Env: " . $config['env'] . "\n";
    echo "Base API: " . (new PayPalClient($config))->getBaseApi() . "\n";
    echo "Partner Merchant ID (Payer ID): " . $config['partner_merchant_id'] . "\n\n";

    // Try a simple pull of merchant-integrations
    $path = '/v1/customer/partners/' . urlencode($config['partner_merchant_id']) . '/merchant-integrations?page_size=20';
    $resp = $client->api('GET', $path);
    echo "GET $path => status: " . $resp['status'] . "\n";
    if ($resp['status'] >= 200 && $resp['status'] < 300) {
        $list = $resp['body']['merchant_integrations'] ?? [];
        echo "Integrations returned: " . count($list) . "\n";
        foreach ($list as $i => $mi) {
            $mid = $mi['merchant_id'] ?? 'n/a';
            $tid = $mi['tracking_id'] ?? 'n/a';
            $rid = $mi['partner_referral_id'] ?? ($mi['referral_id'] ?? 'n/a');
            $onb = $mi['onboarding_status'] ?? null;
            echo sprintf("%02d. merchant_id=%s tracking_id=%s referral_id=%s status=%s\n", $i+1, $mid, $tid, $rid, is_array($onb)? json_encode($onb): (string)$onb);
        }
    } else {
        echo json_encode($resp['body'], JSON_PRETTY_PRINT) . "\n";
    }

    echo "\nRecent sync_debug entries:\n";
    $diag = $storage->get('sync_debug', []);
    $tail = array_slice($diag, -5);
    foreach ($tail as $row) {
        echo json_encode($row, JSON_UNESCAPED_SLASHES|JSON_UNESCAPED_UNICODE) . "\n";
    }

    echo "\nPending entries:\n";
    $pending = $storage->get('pending_onboarding', []);
    foreach ($pending as $track => $row) {
        echo $track . ' => ' . json_encode($row, JSON_UNESCAPED_SLASHES|JSON_UNESCAPED_UNICODE) . "\n";
    }

} catch (Throwable $e) {
    http_response_code(500);
    echo 'Diagnostics error: ' . $e->getMessage();
}