Giv dine øjne en pause.
Velkommen til Horizon.

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

function Show-DarkScreen {
    param($Seconds)
    
    $form = New-Object System.Windows.Forms.Form
    $form.BackColor = 'Black'
    $form.Opacity = 0.8
    $form.TopMost = $true
    $form.FormBorderStyle = 'None'
    $form.WindowState = 'Maximized'

    $labelTekst = New-Object System.Windows.Forms.Label
    $labelTekst.Text = "Take a break"
    $labelTekst.Font = New-Object System.Drawing.Font("Arial", 50)
    $labelTekst.ForeColor = 'White'
    $labelTekst.Dock = 'Top'
    $labelTekst.Height = 300
    $labelTekst.TextAlign = 'BottomCenter'

    $labelTimer = New-Object System.Windows.Forms.Label
    $labelTimer.Name = "MinTimer"
    $labelTimer.Text = $Seconds
    $labelTimer.Font = New-Object System.Drawing.Font("Arial", 150)
    $labelTimer.ForeColor = 'White'
    $labelTimer.Dock = 'Fill'
    $labelTimer.TextAlign = 'TopCenter'
    
    $form.Controls.Add($labelTimer)
    $form.Controls.Add($labelTekst)

    $timer = New-Object System.Windows.Forms.Timer
    $timer.Interval = 1000
    $script:timeLeft = $Seconds

    $timer.Add_Tick({
        $script:timeLeft--
        $form.Controls["MinTimer"].Text = $script:timeLeft
        if ($script:timeLeft -le 0) {
            $timer.Stop()
            $form.Close()
        }
    })

    $form.KeyPreview = $true
    $form.Add_KeyDown({
        if ($_.KeyCode -eq 'Escape') {
            $timer.Stop()
            $form.Close()
        }
    })

    $form.Add_Load({
        $timer.Start()
    })

    $form.Add_Shown({
        $form.Activate()
        $form.Focus()
    })

    $form.ShowDialog() | Out-Null
}

while ($true) {
    Clear-Host
    Write-Host "Enter work minutes (this also sets pause length in seconds)."
    Write-Host "Type '0' for a quick test:"
    $choice = Read-Host ">"

    $parsedValue = 0

    if ($choice -eq '0') { 
        $minutes = 0.166
        $seconds = 5 
    } elseif ([int]::TryParse($choice, [ref]$parsedValue) -and $parsedValue -gt 0) { 
        $minutes = $parsedValue
        $seconds = $parsedValue 
    } else { 
        Write-Host "Invalid input. Defaulting to 20."
        $minutes = 20
        $seconds = 20 
        Start-Sleep -Seconds 2
    }

    $returnToMenu = $false

    while (-not $returnToMenu) {
        $secondsToPause = [math]::Round($minutes * 60)
        
        while ($secondsToPause -gt 0) {
            Clear-Host
            $minRest = [math]::Floor($secondsToPause / 60)
            $secRest = $secondsToPause % 60
            Write-Host "Time until next pause: $minRest minutes and $secRest seconds"
            Write-Host ""
            Write-Host "Press 'M' to cancel and choose a new time."
            Write-Host "Press 'Escape' to close the dark screen early."
            Write-Host "Close this window to stop the program completely."
            
            $waitTime = 0
            while ($waitTime -lt 1000) {
                if ([console]::KeyAvailable) {
                    $key = [console]::ReadKey($true)
                    if ($key.Key -eq 'M') {
                        $returnToMenu = $true
                        break
                    }
                }
                Start-Sleep -Milliseconds 50
                $waitTime += 50
            }
            
            if ($returnToMenu) { break }
            $secondsToPause--
        }
        
        if ($returnToMenu) { break }
        Show-DarkScreen -Seconds $seconds
    }
}