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

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

if (!function_exists('kirimWA')) {
function kirimWA($pesan) {
    $token = "XjC9oSr4jECWG93JQRWf";

    $data = [
        "target" => "120363407747513164@g.us",
        "message" => $pesan,
    ];

    $curl = curl_init();

    curl_setopt_array($curl, [
        CURLOPT_URL => "https://api.fonnte.com/send",
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_POST => true,
        CURLOPT_POSTFIELDS => http_build_query($data),
        CURLOPT_HTTPHEADER => [
            "Authorization: $token"
        ],
    ]);

    curl_exec($curl);
    curl_close($curl);
}
}

// ✅ Ambil semua ODP (KHUSUS USER 22)
$stmt = $conn->query("
    SELECT i.id, i.name, i.latitude, i.longitude
    FROM ftth_items i
    LEFT JOIN item_types it ON i.item_type_id = it.id
    WHERE LOWER(it.name) = 'odp'
    AND i.user_id = 22
");

$odps = $stmt->fetchAll(PDO::FETCH_ASSOC);

foreach ($odps as $odp) {

    // 🔥 ambil status terakhir
    $cek = $conn->prepare("
        SELECT last_status FROM notif_log 
        WHERE odp_id = ?
    ");
    $cek->execute([$odp['id']]);

    $last = $cek->fetch(PDO::FETCH_ASSOC);
    $lastStatus = $last['last_status'] ?? null;

    // 🔥 ambil client
    $stmtClient = $conn->prepare("
        SELECT fi.id, fi.name, fi.serial_number
        FROM cable_routes cr
        JOIN ftth_items fi 
            ON (cr.to_item_id = fi.id OR cr.from_item_id = fi.id)
        WHERE (cr.from_item_id = :id OR cr.to_item_id = :id)
        AND fi.id != :id
    ");
    $stmtClient->bindParam(':id', $odp['id']);
    $stmtClient->execute();

    $clients = $stmtClient->fetchAll(PDO::FETCH_ASSOC);

    $rxValues = [];
    $clientBad = [];

    foreach ($clients as $c) {

        if (empty($c['serial_number'])) continue;

        $query = json_encode(["_id" => $c['serial_number']]);
        $url = "http://rmtstb.megadataisp.net:7557/devices/?query=" . urlencode($query);

        $res = @file_get_contents($url);
        if (!$res) continue;

        $json = json_decode($res, true);

        if (
            isset($json[0]['VirtualParameters']['RXPower']['_value']) &&
            is_numeric($json[0]['VirtualParameters']['RXPower']['_value'])
        ) {
            $rx = floatval($json[0]['VirtualParameters']['RXPower']['_value']);

            $rxValues[] = $rx;

            if ($rx < -23) {
                $clientBad[] = $c['name'] . " (" . $rx . " dBm)";
            }
        }
    }

    // 🔴 skip kalau tidak ada data
    if (count($rxValues) == 0) continue;

    // 🔥 HITUNG (SAMA PERSIS KAYAK MANUAL)
    $total = count($rxValues);
    $bad = count($clientBad);
    $good = $total - $bad;

    $avg = round(array_sum($rxValues) / $total, 2);
    $min = min($rxValues);

    // 🔥 STATUS (SAMA PERSIS)
    $selisih = abs($avg - $min);

$status = "BAIK";

if ($selisih > 1.5) {
    $status = "WARNING";
}

if ($avg < -23 || $bad > ($total * 0.3)) {
    $status = "WARNING";
}

if ($avg < -25 || $bad > ($total * 0.5)) {
    $status = "BURUK";
}

if ($min < -27) {
    $status = "KRITIS";
}

    // ❌ ANTI SPAM (kalau status sama, skip)
    if ($status == $lastStatus) continue;

    // 🔥 FORMAT WA (PERSIS KAYAK MANUAL)
    $maps = "https://www.google.com/maps?q={$odp['latitude']},{$odp['longitude']}";

    // ==============================
    // 🚨 KIRIM SAAT BERMASALAH
    // ==============================
    if ($status != "BAIK") {

        $pesan = "🚨 *AUTO LAPORAN ODP*\n\n";
        $pesan .= "📍 *ODP:* {$odp['name']}\n";
        $pesan .= "📊 *Status:* {$status}\n\n";

        $pesan .= "👥 *Total Client:* {$total}\n";
        $pesan .= "🟢 Client Baik: {$good}\n";
        $pesan .= "🔴 Client Buruk: {$bad}\n\n";

        $pesan .= "📶 *AVG RX:* {$avg} dBm\n";
        $pesan .= "📉 *MIN RX:* {$min} dBm\n\n";

        if (!empty($clientBad)) {
            $pesan .= "⚠ *Client Bermasalah:*\n";
            $pesan .= implode("\n", array_slice($clientBad, 0, 10));
            $pesan .= "\n\n";
        }

        $pesan .= "📌 Lokasi:\n$maps\n\n";
        $pesan .= "🔎 Silakan cek detail di dashboard.";

        kirimWA($pesan);
    }

    // ==============================
    // ✅ OPSIONAL: KIRIM SAAT NORMAL
    // ==============================
    elseif ($status == "BAIK" && $lastStatus != "BAIK") {

        $pesan = "✅ *ODP SUDAH NORMAL*\n\n";
        $pesan .= "📍 ODP: {$odp['name']}\n";
        $pesan .= "Status sekarang: BAIK\n";
        $pesan .= "AVG RX: {$avg} dBm\n";
        $pesan .= "MIN RX: {$min} dBm\n\n";
        $pesan .= "Jaringan sudah stabil 👍";

        kirimWA($pesan);
    }

    // 🔥 UPDATE STATUS TERAKHIR
    $update = $conn->prepare("
        INSERT INTO notif_log (odp_id, last_status, last_sent)
        VALUES (?, ?, NOW())
        ON DUPLICATE KEY UPDATE 
        last_status = VALUES(last_status),
        last_sent = NOW()
    ");
    $update->execute([$odp['id'], $status]);
}