using HightechICT.Amazeing.Client.Rest;
using LogConsole = System.Console;


namespace Bobo.System.Maze.Bot
{
    public class SimplerBot
    {
        public static async Task<int> Run(string mazeName, AmazeingClient mazeClient)
        {
            if (mazeClient == null)
                throw new ArgumentException(nameof(mazeClient));

            if (string.IsNullOrWhiteSpace(mazeName))
                throw new ArgumentException(nameof(mazeName));

            Random random = new Random();
            LogConsole.WriteLine($"Entering maze '{mazeName}'");
            PossibleActionsAndCurrentScore result = await mazeClient.EnterMaze(mazeName);
            Stack<Direction> directions = new Stack<Direction>();
            int collected = 0;

            do
            {
                //await Task.Delay(500);

                if (result.PossibleMoveActions.All(m => m.HasBeenVisited))
                {
                    //LogConsole.WriteLine("All adjacent tiles have been visited! Going back.");
                    Direction direction = directions.Pop();

                    switch (direction)
                    {
                        case Direction.Left:
                            direction = Direction.Right;
                            break;
                        case Direction.Right:
                            direction = Direction.Left;
                            break;
                        case Direction.Up:
                            direction = Direction.Down;
                            break;
                        case Direction.Down:
                            direction = Direction.Up;
                            break;

                    }

                    //LogConsole.WriteLine($"Moving {direction}, I have been here.");

                    result = await mazeClient.Move(direction);
                }
                else
                {
                    MoveAction[] notVisited = result.PossibleMoveActions.Where(m => !m.HasBeenVisited).ToArray();
                    //LogConsole.WriteLine($"{string.Join(", ", notVisited.Select(m => m.Direction.ToString()))} have not been visited, selecting next move.");
                    int selected = random.Next(notVisited.Length - 1);
                    MoveAction moveAction = notVisited[selected];

                    //LogConsole.WriteLine($"Moving {moveAction.Direction}, I have {(!moveAction.HasBeenVisited ? "not" : string.Empty)} been here.");

                    result = await mazeClient.Move(moveAction.Direction);

                    directions.Push(moveAction.Direction);
                }

                if (result.CanCollectScoreHere && result.CurrentScoreInHand > 0)
                {
                    collected += result.CurrentScoreInHand;
                    await mazeClient.CollectScore();
                }

                //LogConsole.WriteLine($"New tile has {(!result.CanExitMazeHere ? "no" : string.Empty)} exit.");

            } while (!result.CanExitMazeHere);

            await mazeClient.ExitMaze();

            LogConsole.WriteLine($"Collected {collected}!");
            LogConsole.WriteLine($"Exited maze {mazeName}!");

            return collected;
        }
    }
}