# --- Force UTF-8 for all console IO ---
$utf8 = [System.Text.UTF8Encoding]::new($false)
try { chcp 65001 | Out-Null } catch {}
[Console]::InputEncoding  = $utf8
[Console]::OutputEncoding = $utf8
$OutputEncoding           = $utf8
$PSDefaultParameterValues['*:Encoding'] = 'utf8'


# ===========================================================
#  V2rayN Proxy Config (Mixed Port 10808)
# ===========================================================

# -----------------------------------------------------------
#  GLOBAL SETTINGS
# -----------------------------------------------------------
if (Test-Path Alias:curl) { Remove-Item Alias:curl }
if (Test-Path Alias:wget) { Remove-Item Alias:wget }

$V2RAY_PORT   = "10808"
$PROXY_HTTP   = "http://127.0.0.1:$V2RAY_PORT"
$PROXY_SOCKS5 = "socks5://127.0.0.1:$V2RAY_PORT"

# -----------------------------------------------------------
#  ENABLE PROXY
# -----------------------------------------------------------
function proxy {
    Write-Host ""
    Write-Host "Configuring Proxy (Mixed Port 10808)..." -ForegroundColor Cyan

    $env:all_proxy   = $PROXY_HTTP
    $env:ALL_PROXY   = $PROXY_HTTP
    $env:http_proxy  = $PROXY_HTTP
    $env:https_proxy = $PROXY_HTTP
    $env:HTTP_PROXY  = $PROXY_HTTP
    $env:HTTPS_PROXY = $PROXY_HTTP
    Write-Host "  [Env Vars]  Set to $PROXY_HTTP OK" -ForegroundColor Green

    if (Get-Command git -ErrorAction SilentlyContinue) {
        git config --global http.proxy $PROXY_SOCKS5
        git config --global https.proxy $PROXY_SOCKS5
        Write-Host "  [Git]       Set to $PROXY_SOCKS5 OK" -ForegroundColor Green
    }

    if (Get-Command npm -ErrorAction SilentlyContinue) {
        npm config set proxy $PROXY_HTTP > $null 2>&1
        npm config set https-proxy $PROXY_HTTP > $null 2>&1
        Write-Host "  [NPM]       Configured OK" -ForegroundColor Green
    }

    if (Get-Command yarn -ErrorAction SilentlyContinue) {
        yarn config set proxy $PROXY_HTTP > $null 2>&1
        yarn config set https-proxy $PROXY_HTTP > $null 2>&1
        Write-Host "  [Yarn]      Configured OK" -ForegroundColor Green
    }

    Write-Host ""
    Write-Host "Proxy IS READY." -ForegroundColor Black -BackgroundColor Green
    Write-Host "---------------------------------------------------------------" -ForegroundColor DarkGray
    Write-Host "  > Type 'proxy'       to Enable Proxy" -ForegroundColor Green
    Write-Host "  > Type 'unproxy'     to Disable Proxy" -ForegroundColor Yellow
    Write-Host "  > Type 'check-proxy' to View Settings" -ForegroundColor Cyan
    Write-Host "  > Type 'test-proxy'  to Test Connectivity (Google Check)" -ForegroundColor Magenta
    Write-Host "---------------------------------------------------------------" -ForegroundColor DarkGray
    Write-Host ""
}

# -----------------------------------------------------------
#  DISABLE PROXY
# -----------------------------------------------------------
function unproxy {
    Remove-Item Env:\all_proxy -ErrorAction SilentlyContinue
    Remove-Item Env:\ALL_PROXY -ErrorAction SilentlyContinue
    Remove-Item Env:\http_proxy -ErrorAction SilentlyContinue
    Remove-Item Env:\https_proxy -ErrorAction SilentlyContinue
    Remove-Item Env:\HTTP_PROXY -ErrorAction SilentlyContinue
    Remove-Item Env:\HTTPS_PROXY -ErrorAction SilentlyContinue

    if (Get-Command git -ErrorAction SilentlyContinue) {
        git config --global --unset http.proxy 2>$null
        git config --global --unset https.proxy 2>$null
    }

    if (Get-Command npm -ErrorAction SilentlyContinue) {
        npm config delete proxy > $null 2>&1
        npm config delete https-proxy > $null 2>&1
    }
    if (Get-Command yarn -ErrorAction SilentlyContinue) {
        yarn config delete proxy > $null 2>&1
        yarn config delete https-proxy > $null 2>&1
    }

    Write-Host ""
    Write-Host "Proxy DISABLED." -ForegroundColor Yellow
    Write-Host ""
}

# -----------------------------------------------------------
#  CHECK STATUS
# -----------------------------------------------------------
function check-proxy {
    Write-Host ""
    Write-Host "PROXY STATUS" -ForegroundColor Cyan
    Write-Host "------------" -ForegroundColor Gray

    if ($env:http_proxy) {
        Write-Host "Status:     " -NoNewline
        Write-Host "ENABLED" -ForegroundColor Green
        Write-Host "Port:       $env:http_proxy" -ForegroundColor Gray
    } else {
        Write-Host "Status:     " -NoNewline
        Write-Host "DISABLED" -ForegroundColor Yellow
    }
    Write-Host ""
}

# -----------------------------------------------------------
#  TEST CONNECTIVITY
# -----------------------------------------------------------
function test-proxy {
    Write-Host ""
    Write-Host "Diagnostics (Port 10808)..." -ForegroundColor Cyan

    $test_port = 10808

    try {
        $tcp = New-Object System.Net.Sockets.TcpClient
        $connect = $tcp.BeginConnect("127.0.0.1", $test_port, $null, $null)
        if ($connect.AsyncWaitHandle.WaitOne(500, $false)) {
            Write-Host "  [Port $test_port] : LISTENING OK" -ForegroundColor Green
            $tcp.Close()
        } else {
            Write-Host "  [Port $test_port] : NOT FOUND X" -ForegroundColor Red
            Write-Host "  Make sure v2rayN is running!" -ForegroundColor Yellow
            return
        }
    } catch {
        Write-Host "  Error checking port." -ForegroundColor Red
        return
    }

    Write-Host "  [Google]      : " -NoNewline
    try {
        $request = [System.Net.WebRequest]::Create("https://www.google.com")
        $request.Method = "HEAD"
        $request.Timeout = 3000
        $proxyObj = New-Object System.Net.WebProxy("http://127.0.0.1:$test_port")
        $request.Proxy = $proxyObj
        $response = $request.GetResponse()
        Write-Host "SUCCESS ($($response.StatusCode)) OK" -ForegroundColor Green
        $response.Close()
    } catch {
        Write-Host "FAILED X" -ForegroundColor Red
        Write-Host "  Error: $($_.Exception.Message)" -ForegroundColor DarkGray
    }
    Write-Host ""
}

Write-Host "Proxy Tools Loaded (Mixed Port)." -ForegroundColor DarkCyan
proxy