using Serilog;
using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using TINK.Model.Bike;
using TINK.Model.Services.CopriApi;
using TINK.Model.Repository;
using BikeInfo = TINK.Model.Bike.BC.BikeInfo;

namespace TINK.Model.Connector
{
    /// <summary> Provides query functionality without login. </summary>
    public class Query : Base, IQuery
    {
        /// <summary> Cached copri server. </summary>
        private readonly ICopriServer server;

        /// <summary>Constructs a copri query object.</summary>
        /// <param name="p_oCopriServer">Server which implements communication.</param>
        public Query(ICopriServerBase p_oCopriServer) : base(p_oCopriServer)
        {
            server = p_oCopriServer as ICopriServer; 
            if (server == null)
            {
                throw new ArgumentException($"Copri server is not of expected typ. Type detected is {p_oCopriServer.GetType()}.");
            }
        }

        /// <summary> Gets all stations including postions.</summary>
        public async Task<Result<StationsAndBikesContainer>> GetBikesAndStationsAsync()
        {
            var stationsAllResponse =  await server.GetStationsAsync();
            var bikesAvailableResponse = await server.GetBikesAvailableAsync();

            return new Result<StationsAndBikesContainer>(
                typeof(CopriCallsMonkeyStore), 
                new StationsAndBikesContainer( stationsAllResponse.GetStationsAllMutable(), bikesAvailableResponse.GetBikesAvailable()));
        }

        /// <summary> Gets bikes occupied. </summary>
        /// <returns>Collection of bikes.</returns>
        public async Task<Result<BikeCollection>> GetBikesOccupiedAsync()
        {
            Log.ForContext<Query>().Error("Unexpected call to get be bikes occpied detected. No user is logged in.");
            return new Result<BikeCollection>(
                typeof(CopriCallsMonkeyStore),
                await Task.Run(() => new BikeCollection(new Dictionary<int, BikeInfo>())),
                new System.Exception("Abfrage der reservierten/ gebuchten Räder fehlgeschlagen. Kein Benutzer angemeldet."));
        }

        /// <summary> Gets bikes occupied. </summary>
        /// <returns> Collection of bikes. </returns>
        public async Task<Result<BikeCollection>> GetBikesAsync()
        {
            return new Result<BikeCollection>(
                typeof(CopriCallsMonkeyStore), 
                (await server.GetBikesAvailableAsync()).GetBikesAvailable());
        }
    }
}