---

[Console]::OutputEncoding = [System.Text.Encoding]::UTF8
[Console]::InputEncoding = [System.Text.Encoding]::UTF8

Add-Type -AssemblyName System.Windows.Forms
Add-Type -AssemblyName System.Drawing

# Настройки
$alertFile      = "\\server\AlertShare\alert.txt"
$checkInterval  = 5

$AlertTitle = "ЭКСТРЕННОЕ ОПОВЕЩЕНИЕ"
$AlertMessage = @"
Срочно покиньте помещение
"@
$SoundRepeat = $true
$BlinkSpeed = 500
# Конец настроек

while ($true) {
    
    # Ждём появления файла тревоги
    while (-not (Test-Path $alertFile)) {
        Start-Sleep -Seconds $checkInterval
    }
    
    # Создаём форму
    $Form = New-Object System.Windows.Forms.Form
    $Form.Text = $AlertTitle
    $Form.StartPosition = "CenterScreen"
    $Form.FormBorderStyle = "None"
    $Form.ControlBox = $false
    $Form.TopMost = $true
    $Form.WindowState = "Maximized"
    $Form.BackColor = [System.Drawing.Color]::FromArgb(192, 0, 0)
    $Form.KeyPreview = $true
    
    # Запрещаем закрытие пользователем
    $Form.Add_FormClosing({
        if ($_.CloseReason -eq "UserClosing") {
            $_.Cancel = $true
        }
    })
    
    # Заголовок
    $LabelTitle = New-Object System.Windows.Forms.Label
    $LabelTitle.Text = "БЕСПИЛОТНАЯ ОПАСНОСТЬ"
    $LabelTitle.Font = New-Object System.Drawing.Font("Arial", 32, [System.Drawing.FontStyle]::Bold)
    $LabelTitle.ForeColor = [System.Drawing.Color]::White
    $LabelTitle.AutoSize = $true
    $LabelTitle.TextAlign = "MiddleCenter"
    $Form.Add_Shown({
        $LabelTitle.Left = ($Form.ClientSize.Width - $LabelTitle.Width) / 2
        $LabelTitle.Top = ($Form.ClientSize.Height * 0.15) - ($LabelTitle.Height / 2)
    })
    $Form.Controls.Add($LabelTitle)
    
    # Основной текст
    $LabelMessage = New-Object System.Windows.Forms.Label
    $LabelMessage.Text = $AlertMessage
    $LabelMessage.Font = New-Object System.Drawing.Font("Arial", 20)
    $LabelMessage.ForeColor = [System.Drawing.Color]::White
    $LabelMessage.AutoSize = $true
    $LabelMessage.TextAlign = "MiddleCenter"
    $Form.Add_Shown({
        $LabelMessage.Left = ($Form.ClientSize.Width - $LabelMessage.Width) / 2
        $LabelMessage.Top = ($Form.ClientSize.Height / 2) - ($LabelMessage.Height / 2)
    })
    $Form.Controls.Add($LabelMessage)
    
    # Футер
    $LabelFooter = New-Object System.Windows.Forms.Label
    $LabelFooter.Text = "Ждите дальнейших указаний"
    $LabelFooter.Font = New-Object System.Drawing.Font("Arial", 12, [System.Drawing.FontStyle]::Italic)
    $LabelFooter.ForeColor = [System.Drawing.Color]::LightGray
    $LabelFooter.AutoSize = $true
    $LabelFooter.TextAlign = "MiddleCenter"
    $Form.Add_Shown({
        $LabelFooter.Left = ($Form.ClientSize.Width - $LabelFooter.Width) / 2
        $LabelFooter.Top = ($Form.ClientSize.Height * 0.92) - ($LabelFooter.Height / 2)
    })
    $Form.Controls.Add($LabelFooter)
    
    # Таймер возврата фокуса
    $FocusTimer = New-Object System.Windows.Forms.Timer
    $FocusTimer.Interval = 200
    $FocusTimer.Add_Tick({
        try {
            $Form.Activate()
            $Form.BringToFront()
            $Form.TopMost = $true
        } catch {}
    })
    
    # Таймер проверки отбоя
    $CheckTimer = New-Object System.Windows.Forms.Timer
    $CheckTimer.Interval = 1000
    $CheckTimer.Add_Tick({
        if (-not (Test-Path $alertFile)) {
            $Form.Close()
        }
    })
    
    # Таймер мерцания
    $BlinkState = $false
    $BlinkTimer = New-Object System.Windows.Forms.Timer
    $BlinkTimer.Interval = $BlinkSpeed
    $BlinkTimer.Add_Tick({
        $BlinkState = -not $BlinkState
        
        if ($BlinkState) {
            $Form.BackColor = [System.Drawing.Color]::FromArgb(255, 0, 0)
            $LabelTitle.ForeColor = [System.Drawing.Color]::White
            $LabelMessage.ForeColor = [System.Drawing.Color]::White
            $LabelFooter.ForeColor = [System.Drawing.Color]::White
        } else {
            $Form.BackColor = [System.Drawing.Color]::FromArgb(100, 0, 0)
            $LabelTitle.ForeColor = [System.Drawing.Color]::Yellow
            $LabelMessage.ForeColor = [System.Drawing.Color]::Yellow
            $LabelFooter.ForeColor = [System.Drawing.Color]::LightGray
        }
    })
    
    # Звук
    $SoundTimer = $null
    if ($SoundRepeat) {
        $SoundTimer = New-Object System.Windows.Forms.Timer
        $SoundTimer.Interval = 10000
        $SoundTimer.Add_Tick({ [System.Console]::Beep(800, 500) })
    }
    
    # Запуск таймеров
    $Form.Add_Shown({
        $FocusTimer.Start()
        $CheckTimer.Start()
        $BlinkTimer.Start()
        if ($SoundTimer) { $SoundTimer.Start() }
    })
    
    # Показываем форму
    $Form.ShowDialog()
    
    # Остановка таймеров
    $FocusTimer.Stop()
    $CheckTimer.Stop()
    $BlinkTimer.Stop()
    if ($SoundTimer) { $SoundTimer.Stop() }
    
    # Очистка
    $FocusTimer.Dispose()
    $CheckTimer.Dispose()
    $BlinkTimer.Dispose()
    if ($SoundTimer) { $SoundTimer.Dispose() }
    $Form.Dispose()
}