QuickScanPro.ps1

[Console]::OutputEncoding = [System.Text.Encoding]::UTF8
Add-Type -AssemblyName System.Windows.Forms

# Load the required DLLs and handle any loading errors
function Load-RequiredDLLs {
    $dlls = @("BouncyCastle.Crypto.dll", "itextsharp.dll")
    foreach ($dll in $dlls) {
        try {
            Unblock-File -Path ".\$dll"
            Add-Type -Path ".\$dll"
        } catch [System.Reflection.ReflectionTypeLoadException] {
            $_.Exception.LoaderExceptions | ForEach-Object { Write-Host $_.Message }
        }
    }
}

# Show the main menu
function Show-Menu {
    Clear-Host
    Write-Host "================ Select the desired option: ================"
    Write-Host "1: Scan a Polaroid photo"
    Write-Host "2: Scan the entire page"
    Write-Host "Q: Exit"
}

# Ask the user to select the DPI
function Get-DPI {
    Write-Host "`nSelect the desired DPI:"
    Write-Host "1: 300 DPI"
    Write-Host "2: 600 DPI"
    Write-Host "3: 1200 DPI"
    do {
        $inputDPI = Read-Host "Enter the number corresponding to the desired DPI"
        switch ($inputDPI) {
            '1' { return 300 }
            '2' { return 600 }
            '3' { return 1200 }
            default { Write-Host "Invalid choice. Please try again." }
        }
    } while ($true)
}

# Show a post-scan options menu
function Show-PostScanMenu {
    Write-Host "What do you want to do now?"
    Write-Host "1: Repeat the scan with the same settings"
    Write-Host "2: Start a new scan with new settings"
    Write-Host "Q: Exit"
}

# Handle the post-scan choice
function Get-PostScanChoice {
    do {
        $inputPostScan = Read-Host "Enter your choice"
        switch ($inputPostScan) {
            '1' { return 'repeat' }
            '2' { return 'new' }
            'Q' { return 'quit' }
            default { Write-Host "Invalid choice. Please try again.`n" }
        }
    } while ($true)
}

# Generate a unique file name
function Get-UniqueFileName($fullPath) {
    $timestamp = Get-Date -Format "yyyyMMddHHmmss"
    $directory = [IO.Path]::GetDirectoryName($fullPath)
    $fileName = [IO.Path]::GetFileNameWithoutExtension($fullPath)
    $extension = [IO.Path]::GetExtension($fullPath)
    $uniqueFileName = "{0}_{1}{2}" -f $fileName, $timestamp, $extension
    return [IO.Path]::Combine($directory, $uniqueFileName)
}

# Convert the image to PDF
function ConvertTo-PDF {
    param (
        [string]$ImagePath,
        [string]$PDFPath
    )
    $document = New-Object iTextSharp.text.Document
    $writer = [iTextSharp.text.pdf.PdfWriter]::GetInstance($document, [System.IO.File]::Create($PDFPath))
    $document.Open()
    $image = [iTextSharp.text.Image]::GetInstance($ImagePath)
    $image.ScaleToFit($document.PageSize.Width - 40, $document.PageSize.Height - 40)
    $image.Alignment = [iTextSharp.text.Image]::ALIGN_CENTER
    $document.Add($image)
    $document.Close()
}

# Load the required DLLs
Load-RequiredDLLs

# Status variables for the scanning session
$lastInput = $null
$lastDPI = $null
$postScanChoice = $null

# Main loop
do {
    Show-Menu
    if (-not $lastInput) {
        $input = Read-Host "Enter your choice"
        $lastInput = $input
    } else {
        $input = $lastInput
    }

    if ($input -eq 'Q') { break }

    if (-not $lastDPI -and ($input -eq '1' -or $input -eq '2')) {
        $dpi = Get-DPI
        $lastDPI = $dpi
    } else {
        $dpi = $lastDPI
    }

    # Insert the scanning logic here, which depends on the specific device and its APIs

    # After scanning, show the post-scan menu
    Show-PostScanMenu
    $postScanChoice = Get-PostScanChoice
    switch ($postScanChoice) {
        'repeat' { continue }
        'new' {
            $lastInput = $null
            $lastDPI = $null
            continue
        }
        'quit' { break }
    }
} while ($true)

Write-Host "Scanning completed. Press any key to exit..."
Read-Host