using System;
using System.Collections.Generic;
using System.Linq;
using TINK.Services.BluetoothLock.Tdo;

namespace TINK.Model.Bikes.BikeInfoNS.BluetoothLock
{
	public static class LockInfoHelper
	{
		/// <summary> Update by id.</summary>
		/// <param name="locksInfo"> Lock info objects to update by id.</param>
		/// <param name="locksInfoTdo">Tdos holding data to updat from</param>
		/// <returns></returns>
		public static IEnumerable<LockInfo> UpdateById(
			this IEnumerable<LockInfo> locksInfo,
			IEnumerable<LockInfoTdo> locksInfoTdo)
		{
			var locksInfoUpdated = new List<LockInfo>();

			foreach (var lockInfo in locksInfo)
			{
				var lockInfoTdo = locksInfoTdo.FirstOrDefault(x => x.Id == lockInfo.Id);
				if (lockInfoTdo == null)
				{
					// No object to update from found.
					locksInfoUpdated.Add(lockInfo);
					continue;
				}

				var state = lockInfoTdo.State.HasValue ? lockInfoTdo.State.Value.GetLockingState() : LockingState.UnknownDisconnected;

				locksInfoUpdated.Add(state != lockInfo.State || lockInfoTdo.Guid != lockInfo.Guid
					 ? new LockInfo.Builder(lockInfo) { Guid = lockInfoTdo.Guid, State = state }.Build() // State has changed, update required.
					 : lockInfo);
			}

			return locksInfoUpdated;
		}

		public static LockingState GetLockingState(this LockitLockingState lockingState)
		{
			switch (lockingState)
			{
				case LockitLockingState.Unknown:
				case LockitLockingState.CouldntOpenBoldBlocked: // Lock is closed in most cases, but this is not guarnteed according to haveltec.
					return LockingState.UnknownFromHardwareError;

				case LockitLockingState.Open:
				case LockitLockingState.CouldntCloseMoving:
				case LockitLockingState.CouldntCloseBoldBlocked:
					return LockingState.Open;

				case LockitLockingState.Closed:
					return LockingState.Closed;
			}

			throw new ArgumentException($"Can not convert LockIt specific locking state to logical locking state. Unknown state {lockingState} detected.");
		}

		/// <summary> Gets one type from another.</summary>
		/// <param name="lockInfo"></param>
		/// <returns></returns>
		public static LockInfoAuthTdo ToLockInfoTdo(this LockInfo lockInfo)
		{
			return new LockInfoAuthTdo.Builder() { Id = lockInfo.Id, Guid = lockInfo.Guid, K_u = lockInfo.UserKey, K_a = lockInfo.AdminKey, K_seed = lockInfo.Seed }.Build();
		}


	}
}