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using System;
using System.Collections.Generic;
using MorgSimulator.Framework;

namespace MorgSimulator.Factory
{
    public class MorgFactory : IEntityFactory<Morg>
    {
        public Morg CreateEntity(int id, string type, int x, int y, string movement, string feeding)
        {
            var trimmedFeeding = feeding.Trim();
            var feedingParts = trimmedFeeding.Split(' ');
            var movementStrategy = CreateMovementStrategy(movement);
            var feedingStrategy = CreateFeedingStrategy(feedingParts[0]);
            var preyTypes = ParsePreyTypes(feedingParts);
            var morg = new Morg(id, (x, y), (0, 0))
            {
                Type = type,
                MovementStrategy = movementStrategy,
                FeedingStrategy = feedingStrategy,
                PreyTypes = preyTypes
            };

            return morg;
        }

        public IMovementStrategy CreateMovementStrategy(string movementType)
        {
            return movementType.Trim() switch
            {
                "Paddles" => new MovementStrategyPaddles(),
                "Oozes" => new MovementStrategyOozes(),
                _ => throw new ArgumentException($"Unknown movement type: {movementType}")
            };
        }

        public IFeedingStrategy CreateFeedingStrategy(string behavior)
        {
            return behavior switch
            {
                "Absorbs" => new FeedingStrategyAbsorbs(),
                "Envelops" => new FeedingStrategyEnvelops(),
                _ => throw new ArgumentException($"Unknown feeding type: {behavior}")
            };
        }

        private static List<string> ParsePreyTypes(string[] feedingParts)
        {
            var preyTypes = new List<string>();

            for (int i = 1; i < feedingParts.Length; i++)
            {
                var prey = feedingParts[i].Trim();

                if (!string.IsNullOrEmpty(prey))
                    preyTypes.Add(prey);
            }

            return preyTypes;
        }
    }
}