using System.Threading.Tasks;
using Microsoft.EntityFrameworkCore;

namespace Inventory.Core
{
    public class UpdateWorkflow
    {
        private readonly DatabaseUpdater _databaseUpdater;
        private readonly SystemInfoCollector _collector;
        private readonly InventoryContext _db;
        private readonly SlurpitClient _slurpitClient;

        public UpdateWorkflow(DatabaseUpdater databaseUpdater, SystemInfoCollector collector, InventoryContext db, SlurpitClient slurpitClient)
        {
            _databaseUpdater = databaseUpdater;
            _collector = collector;
            _db = db;
            _slurpitClient = slurpitClient;
        }

        public async Task Run()
        {
            // This updates all properties EXCEPT printers.
            await _databaseUpdater.UpsertDevice();

            // Fetch the final, complete device object from the database to send to Slurpit.
            // This ensures that when the agent runs, it sends the printer data that the AdminTool saved.
            var identifier = _databaseUpdater.GetLocalIdentifier();
            if (!string.IsNullOrEmpty(identifier))
            {
                var finalDevice = await _db.Devices.AsNoTracking().FirstOrDefaultAsync(d => d.HardwareIdentifier == identifier);
                if (finalDevice != null) await _slurpitClient.SendDeviceData(finalDevice);
            }
        }
    }
}