using Microsoft.Extensions.Logging;

namespace Seyounth.Auto.Hs.Runtime.Scanner;

public class ScannerService : IScannerService
{
    public ScannerService(ILogger<ScannerService> logger)
    {
        _logger = logger;
        //todo:向_scanners里添加HikScanner

        _scanners.ForEach(x => x.OnScanned += (barcode) => OnScanned?.Invoke(x, barcode));
    }

    public IReadOnlyList<IScanner> Scanners => _scanners;

    private readonly ILogger<ScannerService> _logger;

    private readonly List<IScanner> _scanners = new List<IScanner>();

    public async Task StartAsync()
    {
        await Task.WhenAll(_scanners.Select(x => x.ConnectAsync()
            .ContinueWith(t =>
            {
                if (t.IsCompletedSuccessfully)
                    _logger.LogInformation($"Scanner {x.Id} connected successfully.");
                else
                    _logger.LogError($"Scanner {x.Id} failed to connect, error: {t.Exception?.Message}");
            })));
    }

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

    public event Action<IScanner, string>? OnScanned;
}