using FitConnect.Encryption;
using FitConnect.Models;
using FitConnect.Services;
using FitConnect.Services.Interfaces;
using Microsoft.Extensions.Logging;
using Microsoft.IdentityModel.JsonWebTokens;
using Route = FitConnect.Services.Models.v1.Routes.Route;

namespace FitConnect;

public class Router : IRouter {
    private readonly IRouteService _routeService;
    private readonly ISelfServicePortalService _selfServicePortalService;

    public Router(FitConnectEnvironment environment, ILogger logger = null) {
        _routeService = new RouteService(environment.RoutingUrl, "v1", logger);
        _selfServicePortalService = new SelfServicePortalService(environment.SspUrl, "v1", logger);
    }

    public async Task<List<Route>> FindDestinationsAsync(string leiaKey, string? ags = null,
        string? ars = null,
        string? areaId = null, bool skipValidation = false) {
        var routes = await _routeService.GetDestinationIdAsync(leiaKey, ags, ars, areaId);
        if (skipValidation) return routes;

        var validation = await _selfServicePortalService.GetSelfServiceValidationJwk();
        foreach (var route in routes) {
            var token = new JsonWebToken(route.DestinationSignature);
            FitEncryption.VerifyJwt(route.DestinationSignature,
                validation.Keys.First(k => k.Kid == token.Kid));
        }

        return routes;
    }


    /// <summary>
    ///     Finding Areas
    /// </summary>
    /// <param name="filter"></param>
    /// <param name="totalCount"></param>
    /// <param name="offset"></param>
    /// <param name="limit"></param>
    /// <returns></returns>
    public IEnumerable<Area> GetAreas(string filter, out int totalCount, int offset = 0,
        int limit = 100) {
        var dto = _routeService.GetAreas(filter, offset, limit).Result;
        totalCount = dto?.TotalCount ?? 0;
        return dto?.Areas ?? new List<Area>();
    }

    public async Task<List<Route>> FindDestinationsAsync(string leiaKey, string? ags = null,
        string? ars = null,
        string? areaId = null) {
        throw new NotImplementedException();
    }
}