using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Net;
using TINK.Model.Device;
using TINK.Repository.Exception;

namespace TINK.Repository.Request
{
    /// <summary> Creates requests if a user is logged in.</summary>
    public class RequestBuilderLoggedIn : IRequestBuilder
    {
        /// <summary> Constructs a object for building requests. </summary>
        /// <param name="merchantId"></param>
        public RequestBuilderLoggedIn(
            string merchantId,
            string sessionCookie)
        {
            MerchantId = !string.IsNullOrEmpty(merchantId)
                ? merchantId
                : throw new ArgumentException("Merchant id must not be null.", nameof(merchantId));

            SessionCookie = !string.IsNullOrEmpty(sessionCookie)
                ? sessionCookie
                : throw new ArgumentException("Session cookie must not be null.", nameof(sessionCookie));
        }

        /// <summary> Holds the id denoting the merchant (TINK app). </summary>
        public string MerchantId { get; }

        /// <summary> Holds the session cookie if a user is logged in. </summary>
        public string SessionCookie { get; }

        /// <summary> Gets request to log user in. </summary>
        /// <param name="mailAddress">Mailaddress of user to log in.</param>
        /// <param name="password">Password to log in.</param>
        /// <param name="deviceId">Id specifying user and hardware.</param>
        /// <remarks>Response which holds auth cookie <see cref="ResponseBase.authcookie"/></remarks>
        public string DoAuthorization(
            string mailAddress,
            string password,
            string deviceId)
        {
            throw new CallNotRequiredException();
        }

        /// <summary> Logs user out. </summary>
        public string DoAuthout()
        {
            return $"request=authout&authcookie={SessionCookie}{MerchantId}";
        }

        /// <summary>Gets bikes available.</summary>
        /// <returns>Request to query list of bikes available.</returns>
        public string GetBikesAvailable()
        {
            return RequestBuilder.GetBikesAvailable(MerchantId, SessionCookie);
        }

        /// <summary> Gets a list of bikes reserved/ booked by acctive user from Copri.</summary>
        /// <returns>Request to query list of bikes occupied.</returns>
        public string GetBikesOccupied()
        {
            return !string.IsNullOrEmpty(SessionCookie)
                ? $"request=user_bikes_occupied&system=all&genkey=1&authcookie={SessionCookie}{MerchantId}"
                : "request=bikes_available";
        }

        /// <summary> Get list of stations from file. </summary>
        /// <returns>Request to query list of station.</returns>
        public string GetStations()
        {
            return $"request=stations_available&authcookie={SessionCookie ?? string.Empty}{MerchantId}";
        }

        /// <summary> Gets reservation request (synonym: reservation == request == reservieren). </summary>
        /// <remarks> Operator specific call.</remarks>
        /// <param name="bikeId">Id of the bike to reserve.</param>
        /// <returns>Requst to reserve bike.</returns>
        public string DoReserve(string bikeId)
            => $"request=booking_request&bike={bikeId}&authcookie={SessionCookie}{MerchantId}";

        /// <summary> Gets request to cancel reservation. </summary>
        /// <remarks> Operator specific call.</remarks>
        /// <param name="bikeId">Id of the bike to cancel reservation for.</param>
        /// <returns>Requst on cancel booking request.</returns>
        public string DoCancelReservation(string p_iBikeId)
            => $"request=booking_cancel&bike={p_iBikeId}&authcookie={SessionCookie}{MerchantId}";

        /// <summary> Request to get keys. </summary>
        /// <remarks> Operator specific call.</remarks>
        /// <param name="bikeId">Id of the bike to get keys for.</param>
        /// <returns>Request to get keys.</returns>
        public string CalculateAuthParameters(string bikeId)
            => $"request=booking_update&bike={bikeId}&authcookie={SessionCookie}{MerchantId}&genkey=1";

        /// <summary> Gets the request for notifying about start of returning sequence. </summary>
        /// <remarks> Operator specific call.</remarks>
        /// <param name="bikeId">Id of the bike to return.</param>
        /// <returns>Request to notify about start of returning sequence.</returns>
        public string StartReturningBike(string bikeId)
            => $"request=booking_update&bike={bikeId}&lock_state=locking&authcookie={SessionCookie}{MerchantId}";

        /// <summary> Gets the request for updating lock state for a booked bike. </summary>
        /// <remarks> Operator specific call.</remarks>
        /// <param name="bikeId">Id of the bike to update locking state for.</param>
        /// <param name="state">New locking state.</param>
        /// <returns>Request to update locking state.</returns>
        public string UpateLockingState(
            string bikeId, 
            lock_state state, 
            LocationDto geolocation, 
            double batteryPercentage)
            => $"request=booking_update&bike={bikeId}{GetLocationParameters(geolocation)}&lock_state={state}{GetBatteryPercentageParameters(batteryPercentage)}&authcookie={SessionCookie}{MerchantId}";

        /// <summary> Gets booking request request (synonym: booking == renting == mieten). </summary>
        /// <remarks> Operator specific call.</remarks>
        /// <param name="bikeId">Id of the bike to book.</param>
        /// <param name="guid">Used to publish GUID from app to copri. Used for initial setup of bike in copri.</param>
        /// <param name="batteryPercentage">Holds the filling level percentage of the battery.</param>
        /// <returns>Request to booking bike.</returns>
        public string DoBook(string bikeId, Guid guid, double batteryPercentage)
            => $"request=booking_update&bike={bikeId}&authcookie={SessionCookie}{MerchantId}&Ilockit_GUID={guid}&state=occupied&lock_state=unlocked{GetBatteryPercentageParameters(batteryPercentage)}";

        /// <summary> Gets the request to book and start opening the bike (synonym: booking == renting == mieten). </summary>
        /// <param name="bikeId">Id of the bike to book.</param>
        /// <returns>Request to booking bike.</returns>
        public string BookAndStartOpening(string bikeId)
            => $"request=booking_request&bike={bikeId}&authcookie={SessionCookie}{MerchantId}&state=occupied&lock_state={lock_state.unlocking}";

        /// <summary> Gets request for returning the bike. </summary>
        /// <remarks> Operator specific call.</remarks>
        /// <param name="bikeId">Id of bike to return.</param>
        /// <param name="geolocation">Geolocation of lock when returning bike.</param>
        /// <returns>Requst on returning request.</returns>
        public string DoReturn(string bikeId, LocationDto geolocation, ISmartDevice smartDevice)
            => $"request=booking_update" +
                $"&bike={bikeId}" +
                $"&authcookie={SessionCookie}{MerchantId}" +
                $"&state=available" +
                $"{GetLocationParameters(geolocation)}" +
                $"&lock_state=locked" +
                $"{GetSmartDeviceParameters(smartDevice)}";

        /// <summary> Returns a bike and starts closing. </summary>
        /// <param name="bikeId">Id of the bike to return.</param>
        /// <param name="smartDevice">Provides info about hard and software.</param>
        /// <returns>Response to send to corpi.</returns>
        public string ReturnAndStartClosing(string bikeId, ISmartDevice smartDevice)
            => $"request=booking_update" +
                $"&bike={bikeId}" +
                $"&authcookie={SessionCookie}{MerchantId}" +
                $"&state=available" +
                $"&lock_state={lock_state.locking}" +
                $"{GetSmartDeviceParameters(smartDevice)}";

        /// <summary> Gets submit feedback request. </summary>
        /// <param name="bikeId">Id of the bike to return.</param>
        /// <param name="message">General purpose message or error description.</param>
        /// <param name="isBikeBroken">True if bike is broken.</param>
        /// <returns>Submit feedback request.</returns>
        public string DoSubmitFeedback(
            string bikeId,
            string message = null,
            bool isBikeBroken = false)
        {
            if (string.IsNullOrEmpty(message) && !isBikeBroken)
            {
                // User just acknoledged biked returned message.
                return $"request=user_feedback&bike={bikeId}&authcookie={SessionCookie}{MerchantId}";
            }

            if (isBikeBroken == false)
            {
                // Bike is ok and user entered a feedback message.
                return $"request=user_feedback&bike={bikeId}&message={WebUtility.UrlEncode(message)}&authcookie={SessionCookie}{MerchantId}";
            }


            if (string.IsNullOrEmpty(message))
            {
                // User just marked bike as broken without comment.
                return $"request=user_feedback&bike={bikeId}&bike_broken=1&authcookie={SessionCookie}{MerchantId}";
            }

            // Bike is marked as broken and user added a comment.
            return $"request=user_feedback&bike={bikeId}&bike_broken=1&message={WebUtility.UrlEncode(message)}&authcookie={SessionCookie}{MerchantId}";
        }

        private string GetBatteryPercentageParameters(double batteryPercentage) => !double.IsNaN(batteryPercentage)
            ? $"&voltage={batteryPercentage.ToString(CultureInfo.InvariantCulture)}"
            : string.Empty;

        /// <summary> Gets the geolocation parameter. </summary>
        /// <param name="geolocation">Geolocation or null.</param>
        private string GetLocationParameters(LocationDto geolocation)
        {
            if (geolocation == null)
                return string.Empty;

            if (geolocation.Accuracy == null)
                return $"&gps={geolocation.Latitude.ToString(CultureInfo.InvariantCulture)},{ geolocation.Longitude.ToString(CultureInfo.InvariantCulture)}&gps_age={geolocation.Age.TotalSeconds}";

            return $"&gps={geolocation.Latitude.ToString(CultureInfo.InvariantCulture)},{geolocation.Longitude.ToString(CultureInfo.InvariantCulture)}&gps_accuracy={geolocation.Accuracy.Value.ToString(CultureInfo.InvariantCulture)}&gps_age={geolocation.Age.TotalSeconds}";
        }

        /// <summary> Gets the geolocation parameter. </summary>
        /// <param name="geolocation">Geolocation or null.</param>
        private string GetSmartDeviceParameters(ISmartDevice smartDevice)
            => smartDevice != null
                ? $"{(!string.IsNullOrEmpty(smartDevice.Manufacturer) ? $"&user_device_manufaturer={smartDevice.Manufacturer})" : string.Empty)}" +
                    $"{(!string.IsNullOrEmpty(smartDevice.Model) ? $"&user_device_model={smartDevice.Model}" : string.Empty)}" +
                    $"{(!string.IsNullOrEmpty(smartDevice.PlatformText) ? $"&user_device_platform={smartDevice.PlatformText}" : string.Empty)}" +
                    $"{(!string.IsNullOrEmpty(smartDevice.VersionText) ? $"&user_device_version={smartDevice.VersionText}" : string.Empty)}" +
                    $"{(!string.IsNullOrEmpty(smartDevice.Identifier) ? $"&user_device_id={smartDevice.Identifier}" : string.Empty)}"
                : string.Empty;

        /// <summary>
        /// Gets request for submiting mini survey to copri server.
        /// </summary>
        /// <param name="answers">Collection of answers.</param>
        public string DoSubmitMiniSurvey(IDictionary<string, string> answers)
        {
            // Remove entires which invalid keys or values.
            var validAnsers = answers?.Where(x => !string.IsNullOrEmpty(x.Key?.Trim()) && !string.IsNullOrEmpty(x.Value?.Trim()));
            // Create quersy
            return validAnsers != null && validAnsers.Count() > 0
                ? $"request=user_minianswer&{string.Join("&", validAnsers.Select(x => $"{x.Key}={WebUtility.UrlEncode(x.Value)}"))}&authcookie={SessionCookie}{MerchantId}"
                : $"request=user_minianswer&authcookie={SessionCookie}{MerchantId}";

        }

    }
}