<?php

header('Content-Type: application/json');

require_once __DIR__ . '/../config/database.php';

$db = new Database();
$conn = $db->getConnection();

$item_id = intval($_GET['id'] ?? 0);

if (!$item_id) {
    echo json_encode([
        'success' => false,
        'message' => 'ID tidak valid'
    ]);
    exit;
}

/*
|--------------------------------------------------------------------------
| Ambil SN dari ftth_items
|--------------------------------------------------------------------------
*/

$stmt = $conn->prepare("
    SELECT sn_onu
    FROM ftth_items
    WHERE id = ?
");

$stmt->execute([$item_id]);

$item = $stmt->fetch(PDO::FETCH_ASSOC);

if (!$item || empty($item['sn_onu'])) {

    echo json_encode([
        'success' => false,
        'message' => 'SN tidak ada'
    ]);

    exit;
}

$sn = trim($item['sn_onu']);

/*
|--------------------------------------------------------------------------
| Ambil optical terakhir
|--------------------------------------------------------------------------
*/

$stmt = $conn->prepare("
    SELECT
        sn,
        ont_name,
        rx_power,
        voltage,
        min_rx,
        max_rx,
        min_voltage,
        max_voltage,
        updated_at
    FROM onu_daily_history
    WHERE sn = ?
    ORDER BY updated_at DESC
    LIMIT 1
");

$stmt->execute([$sn]);

$data = $stmt->fetch(PDO::FETCH_ASSOC);

if (!$data) {

    echo json_encode([
        'success' => false,
        'message' => 'Data optical tidak ditemukan'
    ]);

    exit;
}

/*
|--------------------------------------------------------------------------
| Format Data
|--------------------------------------------------------------------------
*/

$data['rx_power'] = number_format((float)$data['rx_power'], 2) . ' dBm';

$data['voltage'] = number_format((float)$data['voltage'], 2) . ' V';

$data['min_rx'] = number_format((float)$data['min_rx'], 2) . ' dBm';

$data['max_rx'] = number_format((float)$data['max_rx'], 2) . ' dBm';

$data['min_voltage'] = number_format((float)$data['min_voltage'], 2) . ' V';

$data['max_voltage'] = number_format((float)$data['max_voltage'], 2) . ' V';
echo json_encode([
    'success' => true,
    'data' => $data
]);