using Salmon.Core;
using System.Diagnostics;

Console.WriteLine($"Salmon.Service initializing...");

string uri_args  = args.LastOrDefault();


// Arguments parsing
string period_str = Environment.GetEnvironmentVariable("SALMON_PERIOD") ?? "60000";
int period;
if (!int.TryParse(period_str, out period))
{
    Console.WriteLine($"Cannot parse env variable SALMON_PERIOD, should be an int in milliseconds.");
    return 1;
}

string uri_str = uri_args ?? Environment.GetEnvironmentVariable("SALMON_URI");
if (uri_str == null)
{
    Console.WriteLine($"Cannot find env variable SALMON_URI, should be a valid URL.");
    Console.WriteLine($"You may also use cmd line, uri must be the last argument.");
    return 2;
}

Uri uri;
if(!Uri.TryCreate(uri_str, UriKind.Absolute, out uri))
{
    Console.WriteLine($"Cannot parse env variable SALMON_URI ({uri_str}), it should be a valid URL.");
    return 3;
}
    

// Initialisation
Transmitter transmitter = new();

Console.WriteLine($"Salmon.Service started at {DateTime.Now}.");


while ( true )
{
    var hardwares = Salmon.Model.Monitor.Hardware.FromAllHardware();
    var software = Salmon.Model.Monitor.Software.FromLocal();

    List<Element> tosend = new();
    tosend.Add(software);
    tosend.AddRange(hardwares);

    try
    {
        await transmitter.SendAsync(uri, tosend);
    }
    catch(Exception e)
    {
        Console.WriteLine($"Sending data failed: {e}");
    }


    await Task.Delay(period);
}