<?php
require_once __DIR__ . '/../api/helpers.php';
require_once __DIR__ . '/../api/config/stripe.php';
// No runAuth() — cron/public endpoint

/**
 * Scheduled task to handle tab expiry and cleanup.
 * Run every 5 minutes.
 *
 * 1. Expire idle tabs (no activity beyond business SessionLockMinutes)
 * 2. Clean up stale presence records (>30 min old)
 */

try {
    $config = getStripeConfig();
    $stripeSecretKey = $config['secretKey'] ?? '';
    if ($stripeSecretKey === '') {
        error_log('[tab_cron] FATAL: stripeSecretKey not available. Aborting.');
        jsonResponse(['OK' => false, 'ERROR' => 'no_stripe_key']);
    }

    $expiredCount = 0;
    $capturedCount = 0;
    $cancelledCount = 0;
    $presenceCleaned = 0;

    // 1. Find open tabs that have been idle beyond their business lock duration
    $idleTabs = queryTimed("
        SELECT t.ID, t.StripePaymentIntentID, t.AuthAmountCents, t.RunningTotalCents,
               t.OwnerUserID, t.BusinessID,
               b.SessionLockMinutes, b.PayfritFee, b.StripeAccountID, b.StripeOnboardingComplete
        FROM Tabs t
        JOIN Businesses b ON b.ID = t.BusinessID
        WHERE t.StatusID = 1
          AND t.LastActivityOn < DATE_SUB(NOW(), INTERVAL COALESCE(b.SessionLockMinutes, 30) MINUTE)
    ");

    foreach ($idleTabs as $tab) {
        try {
            // Re-verify tab is still open
            $recheck = queryOne("SELECT StatusID FROM Tabs WHERE ID = ? LIMIT 1", [$tab['ID']]);
            if (!$recheck || (int) $recheck['StatusID'] !== 1) {
                error_log("[tab_cron] Tab #{$tab['ID']} no longer open, skipping.");
                continue;
            }

            // Check PI state on Stripe
            $piData = stripeRequest('GET', "https://api.stripe.com/v1/payment_intents/{$tab['StripePaymentIntentID']}");

            if (empty($piData['status'])) {
                error_log("[tab_cron] Tab #{$tab['ID']} cannot read PI status. Skipping.");
                continue;
            }

            $piStatus = $piData['status'];
            error_log("[tab_cron] Tab #{$tab['ID']} PI status: {$piStatus}");

            if ($piStatus === 'canceled') {
                queryTimed("
                    UPDATE Tabs SET StatusID = 5, ClosedOn = NOW(), PaymentStatus = 'cancelled',
                        PaymentError = 'PI already cancelled on Stripe'
                    WHERE ID = ? AND StatusID = 1
                ", [$tab['ID']]);
                $cancelledCount++;

            } elseif ($piStatus !== 'requires_capture') {
                // Cancel the PI since it's not in a capturable state
                stripeRequest('POST', "https://api.stripe.com/v1/payment_intents/{$tab['StripePaymentIntentID']}/cancel");

                queryTimed("
                    UPDATE Tabs SET StatusID = 5, ClosedOn = NOW(), PaymentStatus = 'cancelled',
                        PaymentError = ?
                    WHERE ID = ? AND StatusID = 1
                ", ["PI never confirmed (status: {$piStatus})", $tab['ID']]);
                $cancelledCount++;

            } else {
                // PI is requires_capture — capture or cancel
                $qOrders = queryOne("
                    SELECT COALESCE(SUM(SubtotalCents), 0) AS TotalSubtotal,
                           COALESCE(SUM(TaxCents), 0) AS TotalTax,
                           COUNT(*) AS OrderCount
                    FROM TabOrders
                    WHERE TabID = ? AND ApprovalStatus = 'approved'
                ", [$tab['ID']]);

                if ((int) $qOrders['OrderCount'] === 0 || (int) $qOrders['TotalSubtotal'] === 0) {
                    // No orders — cancel PI and release hold
                    $cancelData = stripeRequest('POST', "https://api.stripe.com/v1/payment_intents/{$tab['StripePaymentIntentID']}/cancel");

                    if (($cancelData['status'] ?? '') === 'canceled') {
                        queryTimed("
                            UPDATE Tabs SET StatusID = 5, ClosedOn = NOW(), PaymentStatus = 'cancelled'
                            WHERE ID = ? AND StatusID = 1
                        ", [$tab['ID']]);
                        $cancelledCount++;
                    } else {
                        $errMsg = $cancelData['error']['message'] ?? 'Cancel failed';
                        queryTimed("UPDATE Tabs SET PaymentStatus = 'cancel_failed', PaymentError = ? WHERE ID = ?", [$errMsg, $tab['ID']]);
                        error_log("[tab_cron] Tab #{$tab['ID']} cancel FAILED: {$errMsg}");
                        continue;
                    }

                } else {
                    // Has orders — capture with 0% tip (auto-close)
                    $payfritFee = is_numeric($tab['PayfritFee']) ? (float) $tab['PayfritFee'] : 0.05;
                    $totalSubtotal = (int) $qOrders['TotalSubtotal'];
                    $totalTax = (int) $qOrders['TotalTax'];
                    $platformFee = (int) round($totalSubtotal * $payfritFee);
                    $totalBeforeCard = $totalSubtotal + $totalTax + $platformFee;
                    $cardFeeCents = (int) round(($totalBeforeCard + 30) / (1 - 0.029)) - $totalBeforeCard;
                    $captureCents = $totalBeforeCard + $cardFeeCents;
                    $applicationFeeCents = $platformFee * 2;

                    // Cap at authorized amount
                    if ($captureCents > (int) $tab['AuthAmountCents']) {
                        $captureCents = (int) $tab['AuthAmountCents'];
                        if (($totalBeforeCard + $cardFeeCents) > 0) {
                            $applicationFeeCents = (int) round($applicationFeeCents * ($captureCents / ($totalBeforeCard + $cardFeeCents)));
                        }
                    }

                    // Mark as closing (prevents race)
                    $closing = queryTimed("UPDATE Tabs SET StatusID = 2 WHERE ID = ? AND StatusID = 1", [$tab['ID']]);
                    if ($closing->rowCount() === 0) {
                        error_log("[tab_cron] Tab #{$tab['ID']} already being closed. Skipping.");
                        continue;
                    }

                    $captureParams = [
                        'amount_to_capture'    => $captureCents,
                        'metadata[type]'       => 'tab_auto_close',
                        'metadata[tab_id]'     => $tab['ID'],
                    ];
                    if (!empty(trim($tab['StripeAccountID'] ?? '')) && (int) ($tab['StripeOnboardingComplete'] ?? 0) === 1) {
                        $captureParams['application_fee_amount'] = $applicationFeeCents;
                    }

                    $captureData = stripeRequest('POST', "https://api.stripe.com/v1/payment_intents/{$tab['StripePaymentIntentID']}/capture", $captureParams);

                    if (($captureData['status'] ?? '') === 'succeeded') {
                        queryTimed("
                            UPDATE Tabs SET StatusID = 3, ClosedOn = NOW(), PaymentStatus = 'captured',
                                CapturedOn = NOW(), FinalCaptureCents = ?, TipAmountCents = 0
                            WHERE ID = ?
                        ", [$captureCents, $tab['ID']]);

                        queryTimed("
                            UPDATE Orders SET PaymentStatus = 'paid', PaymentCompletedOn = NOW()
                            WHERE ID IN (SELECT OrderID FROM TabOrders WHERE TabID = ? AND ApprovalStatus = 'approved')
                        ", [$tab['ID']]);

                        $capturedCount++;
                        error_log("[tab_cron] Tab #{$tab['ID']} auto-closed. Captured {$captureCents} cents (fee={$applicationFeeCents}).");
                    } else {
                        $errMsg = $captureData['error']['message'] ?? 'Capture failed';
                        queryTimed("UPDATE Tabs SET StatusID = 1, PaymentStatus = 'capture_failed', PaymentError = ? WHERE ID = ?", [$errMsg, $tab['ID']]);
                        error_log("[tab_cron] Tab #{$tab['ID']} capture FAILED: {$errMsg}. Tab reverted to open.");
                        continue;
                    }
                }
            }

            // Release all members
            queryTimed("UPDATE TabMembers SET StatusID = 3, LeftOn = NOW() WHERE TabID = ? AND StatusID = 1", [$tab['ID']]);

            // Reject pending orders
            queryTimed("UPDATE TabOrders SET ApprovalStatus = 'rejected' WHERE TabID = ? AND ApprovalStatus = 'pending'", [$tab['ID']]);

            $expiredCount++;

        } catch (Exception $tabErr) {
            error_log("[tab_cron] Error expiring tab #{$tab['ID']}: {$tabErr->getMessage()}");
        }
    }

    // 2. Clean stale presence records (>30 min)
    $cleanStmt = queryTimed("DELETE FROM UserPresence WHERE LastSeenOn < DATE_SUB(NOW(), INTERVAL 30 MINUTE)");
    $presenceCleaned = $cleanStmt->rowCount();

    jsonResponse([
        'OK'                => true,
        'MESSAGE'           => 'Tab cron complete',
        'EXPIRED_TABS'      => $expiredCount,
        'CAPTURED_TABS'     => $capturedCount,
        'CANCELLED_TABS'    => $cancelledCount,
        'PRESENCE_CLEANED'  => $presenceCleaned,
    ]);

} catch (Exception $e) {
    error_log("[tab_cron] Cron error: {$e->getMessage()}");
    jsonResponse(['OK' => false, 'ERROR' => 'server_error', 'MESSAGE' => $e->getMessage()]);
}