using Microsoft.Extensions.Logging;
using System.Diagnostics;

namespace CasaBotApp;

public class DVRScanner
{
    private readonly ILogger<DVRScanner> _logger;
    private const string _mediaPath = @".\media"; // Replace with your desired file path
    private const string _dvrScannerFile = @".\dvr-scanner\dvr-scan.exe";
    private const string _dvrScannerConfig = @".\dvr-scanner\dvr-scan.cfg";

    //.\dvr-scanner\dvr-scan.exe -i .\media\*.mp4 -c .\dvr-scanner\dvr-scan.cfg
    public DVRScanner(ILogger<DVRScanner> logger)
    {
        _logger = logger;
    }
    
    public async Task ScanVideos(CancellationToken cancellationToken = default)
    {
        try
        {
            //make sure the directory exists
            Directory.CreateDirectory(Path.GetDirectoryName(_mediaPath)!);
            
            
            _logger.LogDebug("Scanning videos...");
            var process = new Process
            {
                StartInfo = new ProcessStartInfo
                {
                    FileName = _dvrScannerFile,
                    Arguments = $"-i {_mediaPath}\\*.mp4 -c {_dvrScannerConfig}",
                    RedirectStandardOutput = true,
                    UseShellExecute = false,
                    CreateNoWindow = true,
                    
                    
                    
                }
            };
            process.Start();
            cancellationToken.Register(() =>
            {
                _logger.LogDebug("DVR Process status: ID: {Id}, HasExited: {HasExited}, Responding: {Responding}", 
                    process.Id, process.HasExited, process.Responding);
                if(process.HasExited) return;
                
                _logger.LogWarning("DVR Process is still running, killing it...");
                process.Kill();
            });
            
            _logger.LogDebug("DVR Process started with ID: {Id}", process.Id);
            await process.WaitForExitAsync(cancellationToken);

            
            _logger.LogInformation("Videos scanned successfully!");
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "An error occurred while scanning the videos");
        }
    }
}