using Microsoft.Extensions.Logging;

namespace Seyounth.Auto.Hs.Runtime.Printer;

public class PrinterService : IPrinterService
{
    public IReadOnlyList<IPrinter> Printers => _printers;

    private readonly ILogger<PrinterService> _logger;

    private readonly List<IPrinter> _printers = new List<IPrinter>();

    public PrinterService(IEnumerable<IPrinter> printers,ILogger<PrinterService> logger)
    {
        _logger = logger;
        _printers.AddRange(printers);
        //todo: load printers from configuration or new
    }

    public async Task StartAsync()
    {
        await Task.WhenAll(Printers.Select(e => e.ConnectAsync()));
    }

    public async Task StopAsync()
    {
        await Task.WhenAll(Printers.Select(x => x.DisconnectAsync()
            .ContinueWith(t =>
            {
                if (t.IsCompletedSuccessfully)
                    _logger.LogInformation($"Printer {x.Id} disconnected");
                else
                    _logger.LogError(t.Exception, $"Printer {x.Id} failed to disconnect,error: {t.Exception.Message}");
            })));
    }

    public Task PrintAsync(int id, string content)
    {
        var printer = Printers.FirstOrDefault(x => x.Id == id);
        if (printer == null)
            throw new ArgumentException("Printer not found", nameof(id));
        return printer.PrintAsync(content);
    }
}