<?php
// Aktifkan error log (minimalis)
error_reporting(E_ALL);
ini_set('display_errors', 0);
ini_set('log_errors', 1);
ini_set('error_log', __DIR__ . '/../logs/create_link_flip.log');

// Fungsi sanitasi string
function sanitizeString($input) {
    $str01 = preg_replace('/[^a-zA-Z0-9\s]/', ' ', $input);
    $str02 = preg_replace('/\s+/', ' ', $str01);
    return trim($str02);
}

include "../config/connect.php";

try {
    $linkCreated = false; // Penanda apakah ada link yang berhasil dibuat

    // Ambil semua server dengan payment gateway aktif
    $sqlData = "SELECT id, apikey_payment_gateway, url_payment_gateway
                FROM data_server
                WHERE status_payment_gateway = 'ACTIVE'
                  AND apikey_payment_gateway != ''
                  AND tokenkey_payment_gateway != ''
                  AND url_payment_gateway != ''";
    $stmtData = $pdo->query($sqlData);
    
    while ($dataambil = $stmtData->fetch(PDO::FETCH_ASSOC)) {
        $idds   = $dataambil['id'];
        $apiKey = $dataambil['apikey_payment_gateway'];
        $apiUrl = $dataambil['url_payment_gateway'];

        // Ambil hanya 1 profile_tagihan untuk server ini
        $sqlProfil = "SELECT id, kirim_tagihan
                      FROM profile_tagihan
                      WHERE id_data_server = :id_data_server
                      LIMIT 1";
        $stmtProfil = $pdo->prepare($sqlProfil);
        $stmtProfil->bindParam(':id_data_server', $idds, PDO::PARAM_INT);
        $stmtProfil->execute();

        if ($dataprofil = $stmtProfil->fetch(PDO::FETCH_ASSOC)) {
            // Ambil hanya 1 tagihan yang valid
            $sql = "SELECT * FROM v_tagihan
                    WHERE id_data_server = :idds
                      AND id_profile_tagihan = :idpt
                      AND status = 'buat'
                      AND transaction_id IS NULL
                      AND transaction_link IS NULL
                      AND transaction_status IS NULL
                      AND verifikasi_tagihan > 1000
                      AND RIGHT(email, 10) = '@gmail.com'
                    ORDER BY id ASC
                    LIMIT 1";
            $stmt = $pdo->prepare($sql);
            $stmt->execute([
                ':idds' => $idds,
                ':idpt' => $dataprofil['id']
            ]);

            if ($data = $stmt->fetch(PDO::FETCH_ASSOC)) {
                try {
                    if (!empty($data['limit_pembayaran'])) {
                        $day = str_pad($dataprofil['kirim_tagihan'], 2, '0', STR_PAD_LEFT);
                        $cekkirim = substr($data['limit_pembayaran'], 0, 8) . $day;

                        $date = new DateTime($cekkirim);
                        $date->modify('-1 day');
                        $cektanggal = $date->format('Y-m-d');
                        $sekarang   = date('Y-m-d');

                        if ($sekarang === $cektanggal) {
                            
                            $keteranganName = ucwords(strtolower(preg_replace('/[^a-zA-Z\s]/', '', $data['nama'])));
                            $keteranganFlip = str_replace('Layanan Internet ', '', $data['keterangan']) . " (an. " . $keteranganName . ")";
                            
                            // Buat link payment gateway
                            require '../payment/flip/Flip/Transaction.php';
                            $flip = new FlipPaymentGateway($apiKey, $apiUrl);

                            $response = $flip->createBill(
                                sanitizeString($keteranganFlip),
                                sanitizeString($data['verifikasi_tagihan']),
                                $data['email'],
                                sanitizeString($data['nama']),
                                sanitizeString($data['nomor_whatsapp']),
                                sanitizeString($data['alamat'])
                            );

                            if (!empty($response['link_id']) && !empty($response['link_url']) && !empty($response['status'])) {
                                $transaction_id     = $response['link_id'];
                                $transaction_link   = $response['link_url'];
                                $transaction_status = $response['status'];

                                $update = $pdo->prepare("UPDATE tagihan
                                    SET transaction_id = :transaction_id,
                                        transaction_link = :transaction_link,
                                        transaction_status = :transaction_status
                                    WHERE id = :idtag");
                                $update->execute([
                                    ':transaction_id' => $transaction_id,
                                    ':transaction_link' => $transaction_link,
                                    ':transaction_status' => $transaction_status,
                                    ':idtag' => $data['id']
                                ]);
                                

                                echo "[SUCCESS] {$data['nama']} ({$data['id']}) Server Id :{$data['id_data_server']} , link dibuat.\n";
                                $linkCreated = true; // Set penanda ada link dibuat
                            } else {
                                error_log("[ERROR] Flip API gagal untuk tagihan ID {$data['id']}");
                            }
                        }
                    }
                } catch (Exception $e) {
                    error_log("[EXCEPTION] {$e->getMessage()} untuk tagihan ID {$data['id']}");
                }
            }
        }
    }

    // Jika tidak ada satupun link yang dibuat
    if (!$linkCreated) {
        // error_log("[INFO] Tidak ada tagihan yang perlu dibuat link Flip.");
        echo "[INFO] Tidak ada tagihan yang perlu dibuat link.\n";
    }

    echo "[DONE] Proses selesai pada " . date('Y-m-d H:i:s') . "\n";
} catch (PDOException $e) {
    error_log('[DB ERROR] ' . $e->getMessage());
    echo "[DB ERROR] " . $e->getMessage();
} catch (Exception $e) {
    error_log('[GENERAL ERROR] ' . $e->getMessage());
    echo "[ERROR] " . $e->getMessage();
}
?>