using System;
using System.Diagnostics;


namespace AyaNova.Util
{

    /// <summary>
    /// Used by reporting system to ensure headless browsers don't hang around in an untimely manner
    /// needed due to bugs in puppeteersharp where it won't close the browser on timeout properly
    /// also zombie process issues in linux etc, this just ensures it's safe
    /// This is triggered when a report is rendered
    /// </summary>
    internal static class ReportingProcessCache
    {
        internal static int ReporterProcessId { get; set; } = -1;
        internal static DateTime Started { get; set; }

        internal static void EnsureReporterAvailable(int timeOutMilliSeconds)
        {
            if (ReporterProcess() == null) return;
            //await it's completion in the specified timeout
        }

        internal static void FlagNewProcess(int processId)
        {
            ReporterProcessId = processId;
            Started = DateTime.UtcNow;
        }

        private static Process ReporterProcess()
        {
            if (ReporterProcessId == -1) return null;
            try
            {
                return Process.GetProcessById(ReporterProcessId);
            }
            catch (ArgumentException)
            {
                return null;//no process available / not running
            }
        }


        /*
                   //Is the report generator (browser) already running?
     if(ReportingProcessCache.ReporterProcess()!=null){
     //there is an existing process in action, let's wait for timeout seconds and kill it if it's still running before proceeding
     //first check to see if it's still actually running or not:
     var process = System.Diagnostics.Process.GetProcessById(ReportingProcessCache.ReporterProcessId);
                         // if (ChromiumProcessID > 0 && process?.HasExited == false)
                         // {
                         //     log.LogError($"Error during render, Chromium process (pid {ChromiumProcessID}) still active, forcing it to stop now");
                         //     process.Kill();
                         // }

     bool keepOnWaiting=true;
     while(keepOnWaiting){
        var v= DateTime.UtcNow-ReportingProcessCache.Started;
        if(v.TotalSeconds> ServerBootConfig.REPORT_RENDERING_OPERATION_TIMEOUT){

        }
     }

     }
        */
    }//eoc
}//eons