Script for playing files from a folder matching a regex one by one.

Next.ps1

function next()
{
    $nextFilesDir = "SomeDirContainingNextAndNextHistoryFiles"
    $nextFilePath =  "$nextFilesDir\Next.txt"
    $nextFileContent = Get-Content ($nextFilePath)
    "Next file content is: '$nextFileContent'"

    $filesDir = $nextFileContent[0].Replace("files-dir:", "")
    $fileRegex = $nextFileContent[1].Replace("file-regex:", "")
    
    $historyFilePath = "$nextFilesDir\Next-History.txt"
    $history = Get-Content $historyFilePath
    
    if($history -eq $null)
    {
        $history = @("")
    }

    $matchingFiles = Get-ChildItem $filesDir | Where-Object { $_.Name -match $fileRegex  }
    
    $firstNotOpened = $matchingFiles | Where-Object { $history.Contains( $_ ) -eq $false} | Select -First 1
    if($firstNotOpened -eq $null) {
        "There are no files left to open."
        return
    } 
    else {
        "I have decided that the first not opened is $firstNotOpened"
    }

    $yesOrSomethingElse = Read-Host -Prompt "Enter 'y' to open $firstNotOpened"
    if($yesOrSomethingElse.ToLower() -eq "y")
    {
        explorer.exe "$filesDir\$firstNotOpened"
    }else {
        return
    }

    $history += $firstNotOpened.Name
    Set-Content $historyFilePath $history
}

Next.txt

files-dir:SomeDirOfFilesToOpen
file-regex:some|regex.+