run.ps1

try {
    $applicationPath = "C:\GitRepos\GraphViewerApp\app.py"
    $streamlitModule = "C:\GitRepos\GraphViewerApp\venv\Scripts\streamlit.exe"
    $uniqueIdentifier = "*streamlit*run*$applicationPath*"
    $logFile = "C:\GitRepos\GraphViewerApp\app_log.txt"

    while ($true) {
        # Use Get-WmiObject to check if a specific Streamlit application is running
        $running = Get-WmiObject Win32_Process | Where-Object { $_.CommandLine -like $uniqueIdentifier }
        if (-not $running) {
            Write-Host "Starting application..."
            
            # Start the process with a process object so we can interact with it
            $processStartInfo = New-Object System.Diagnostics.ProcessStartInfo
            $processStartInfo.FileName = $streamlitModule
            $processStartInfo.Arguments = "run $applicationPath --server.port 8080"
            $processStartInfo.UseShellExecute = $false
            $processStartInfo.RedirectStandardInput = $true
            $processStartInfo.RedirectStandardOutput = $true
            $processStartInfo.RedirectStandardError = $true
            $processStartInfo.CreateNoWindow = $false
            
            $process = New-Object System.Diagnostics.Process
            $process.StartInfo = $processStartInfo
            $process.Start() | Out-Null
            
            # Send an empty input (Enter) in case Streamlit asks for email
            Start-Sleep -Seconds 2
            $process.StandardInput.WriteLine("")
            
            # Wait for application to initialize (look for "You can now view" message)
            $outputLine = ""
            $started = $false
            
            # Read output for up to 30 seconds to check for successful startup
            $startTime = Get-Date
            while ((-not $started) -and ((Get-Date) - $startTime).TotalSeconds -lt 30) {
                if (-not $process.StandardOutput.EndOfStream) {
                    $outputLine = $process.StandardOutput.ReadLine()
                    $outputLine | Out-File -FilePath $logFile -Append
                    
                    if ($outputLine -match "You can now view") {
                        $started = $true
                        Write-Host "Application started successfully!" -ForegroundColor Green
                        Write-Host $outputLine -ForegroundColor Green
                    }
                }
                Start-Sleep -Milliseconds 100
            }
            
            "Application restarted at $(Get-Date)" | Out-File -FilePath $logFile -Append
            
            # Keep the process running - don't wait here as it would block the script
        }
        Start-Sleep -Seconds 30
    }
}
catch {
    "Error occurred at $(Get-Date): $($_.Exception.Message)" | Out-File -FilePath $logFile -Append
    Start-Sleep -Seconds 60  # Wait before the script potentially restarts
}