<?php
require_once '/opt/DragonCore/config.php';


function createv2table()
{
    global $db_host, $db_port, $db_name, $db_user, $db_pass;


$conn = pg_connect("host=localhost dbname=dragoncore user=dragoncore 2password=$db_pass");

    if (!$conn) {
        echo "Failed to connect to PostgreSQL";
        exit;
    }

    $query = "CREATE TABLE IF NOT EXISTS v2ray (
                ID SERIAL PRIMARY KEY,
                UUID TEXT,
                nck TEXT,
                vlc TEXT
              )";

    $result = pg_query($conn, $query);

    if (!$result) {
        echo "Error creating table: " . pg_last_error($conn);
    }

    pg_close($conn);
}


function v2users()
{
    global $db_host, $db_port, $db_name, $db_user, $db_pass;


$conn = pg_connect("host=localhost dbname=dragoncore user=dragoncore 2password=$db_pass");
    if (!$conn) {
        die("Connection failed: " . pg_last_error());
    }
    $query = "SELECT * FROM v2ray";
    $result = pg_query($conn, $query);
    if (!$result) {
        die("Query execution failed: " . pg_last_error());
    }
    while ($row = pg_fetch_assoc($result)) {
        $ID = $row['id'];
        $UUID = $row['uuid'];
        $nick = $row['nck'];
        echo "ID: " . $ID . " | " . "NOME: " . $nick . " | " . "UUID: " . $UUID . "\n";
    }
    pg_close($conn);
}


function v2uid($id)
{
    global $db_host, $db_port, $db_name, $db_user, $db_pass;


$conn = pg_connect("host=localhost dbname=dragoncore user=dragoncore 2password=$db_pass");
    if (!$conn) {
        die("Connection failed: " . pg_last_error());
    }
    $query = "SELECT uuid FROM v2ray WHERE id=$id";
    $result = pg_query($conn, $query);
    if (!$result) {
        die("Query execution failed: " . pg_last_error());
    }
    while ($row = pg_fetch_assoc($result)) {
        $UUID = $row['uuid'];
        echo $UUID;
    }
    pg_close($conn);
}


function inv2($uuid, $nick, $valid)
{
    global $db_host, $db_port, $db_name, $db_user, $db_pass;


$conn = pg_connect("host=localhost dbname=dragoncore user=dragoncore 2password=$db_pass");
    if (!$conn) {
        die("Connection failed: " . pg_last_error());
    }
    $query = "INSERT INTO v2ray (UUID, nck, vlc) VALUES ($1, $2, $3)";
    $result = pg_prepare($conn, "", $query);
    if (!$result) {
        die("Statement preparation failed: " . pg_last_error());
    }
    $result = pg_execute($conn, "", array($uuid, $nick, $valid));
    if (!$result) {
        die("Execution failed: " . pg_last_error());
    }
    pg_close($conn);
}


function intallv2()
{
    $filePath = '/bin/v2ray';
    if (file_exists($filePath)) {
        echo "/opt/DragonCore/v2ray --remove";
    } else {
        echo "apt install python3-pip -y" . "\n" . "/opt/DragonCore/v2ray";
    }

}


function v2protocol()
{
    echo "v2ray stream";
}


function v2tls()
{
    echo "v2ray tls";
}


function v2port()
{
    echo "v2ray port";
}


function v2stats()
{
    echo "v2ray stats";
}


function removev2()
{
    echo "/opt/DragonCore/v2ray --remove";
}


function v2info()
{
    echo "v2ray info";
}


function uuidgen()
{
    return shell_exec('uuidgen');
}


function addv2user($nick)
{
    $valid = date("Y-m-d", strtotime("+31 days"));
    $MAILITO = substr(str_shuffle("0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"), 0, 10);
    $UUID = uuidgen();
    $UUID2 = str_replace(array("\r", "\n"), '', $UUID);
    $configPath = "/etc/v2ray/config.json";
    $newClient = [
        '{
            "alterId": 0,',
        '    "id": "' . $UUID2 . '",',
        '    "email": "' . $MAILITO . '@gmail.com"}'
    ];
    $config = file_get_contents($configPath);
    $pos = strpos($config, '"clients": [');
    if ($pos !== false) {
        $config = substr_replace($config, implode("\n", $newClient) . ',', $pos + strlen('"clients": ['), 0);
        file_put_contents($configPath, $config);
        inv2($UUID, $nick, $valid);
        system("v2ray restart > /dev/null 2>&1");
        echo "UUID Criado: " . $UUID2 . "\n\n" . extractVmessUrlByUUID($UUID2);
    } else {
        echo "Error: Unable to find 'clients' array in the config file.";
    }
}


function delv2($uuidel)
{
    $lineP = shell_exec("sed -n '/'" . $uuidel . "'/=' /etc/v2ray/config.json");
    $numl1 = 2;
    $resta = $lineP - $numl1;
    shell_exec("sed -i \"" . $resta . "d\" /etc/v2ray/config.json");
    shell_exec("sed -i \"" . $resta . "d\" /etc/v2ray/config.json");
    shell_exec("sed -i \"" . $resta . "d\" /etc/v2ray/config.json");
    shell_exec("sed -i \"" . $resta . "d\" /etc/v2ray/config.json");
    shell_exec("sed -i \"" . $resta . "d\" /etc/v2ray/config.json");
    shell_exec("v2ray restart > /dev/null 2>&1");

}


function dlv2($id)
{
    global $db_host, $db_port, $db_name, $db_user, $db_pass;


$conn = pg_connect("host=localhost dbname=dragoncore user=dragoncore 2password=$db_pass");
    if (!$conn) {
        die("Connection failed: " . pg_last_error());
    }
    $query = "DELETE FROM v2ray WHERE id = $1";
    $result = pg_prepare($conn, "", $query);
    if (!$result) {
        die("Statement preparation failed: " . pg_last_error());
    }
    $result = pg_execute($conn, "", array($id));
    if (!$result) {
        die("Execution failed: " . pg_last_error());
    }
    pg_close($conn);
}


function v2cho()
{
    $filePath = '/bin/v2ray';
    if (file_exists($filePath)) {
        return "Remover";
    } else {
        return "Instalar";
    }
}


function extractVmessUrlByUUID($uuid)
{
    $v2link = shell_exec("v2ray info | grep -A4 \"UUID: $uuid\" | tail -n1 | grep -o 'vmess://.*'");
    if (str_contains($v2link, "vmess")) {
        return "$v2link";
    } else {
        $v2link2 = shell_exec("v2ray info | grep -A4 \"ID: $uuid\" | tail -n1 | grep -o 'vless://.*'");
        if (str_contains($v2link2, "vless")) {
            return "$v2link2";
        } else {
            return null;
        }
    }
}