# Define the target URL
# $targetUrl = "https://www.nasa.gov/history/alsj/a11/video11.html"
$targetUrl = Read-Host "Enter the target URL to scan for video links"

# Define the folder to save downloads
$downloadFolder = "V:\INTERNET\nasa\powershell"
New-Item -ItemType Directory -Path $downloadFolder -Force | Out-Null

# Define video extensions to look for
$videoExtensions = @(".mp4", ".webm", ".mov", ".avi", ".mkv", ".flv", ".rm")

# Fetch the HTML content
$response = Invoke-WebRequest -Uri $targetUrl

# Extract all href links
$links = $response.Links | Where-Object {
    $ext = [System.IO.Path]::GetExtension($_.href)
    $videoExtensions -contains $ext.ToLower()
}

# Download each video file using curl
foreach ($link in $links) {
    $url = $link.href
    if ($url -notmatch "^https?://") {
        # Convert relative URL to absolute
        $uri = [System.Uri]::new($targetUrl, $url)
        $url = $uri.AbsoluteUri
    }

    $fileName = [System.IO.Path]::GetFileName($url)
    $outputPath = Join-Path $downloadFolder $fileName

    Write-Host "Downloading $fileName..."
    curl.exe -L $url -o $outputPath
}