using System;

using RobocraftX.Blocks;
using RobocraftX.Common;
using Svelto.ECS;
using Unity.Mathematics;

using GamecraftModdingAPI.Utility;

namespace GamecraftModdingAPI.Blocks
{
	public class Motor : Block
    {
        /// <summary>
        /// Places a new motor.
        /// Any valid motor type is accepted.
        /// This re-implements Block.PlaceNew(...)
        /// </summary>
		public static new Motor PlaceNew(BlockIDs block, float3 position,
            float3 rotation = default, BlockColors color = BlockColors.Default, byte darkness = 0,
            int uscale = 1, float3 scale = default, Player player = null)
        {
			if (!(block == BlockIDs.MotorS || block == BlockIDs.MotorM))
            {
                throw new BlockTypeException($"Block is not a {typeof(Motor).Name} block");
            }
            if (PlacementEngine.IsInGame && GameState.IsBuildMode())
            {
                EGID id = PlacementEngine.PlaceBlock(block, color, darkness,
                                                     position, uscale, scale, player, rotation);
                return new Motor(id);
            }

            return null;
        }

        public Motor(EGID id) : base(id)
        {
            if (!BlockEngine.GetBlockInfoExists<MotorReadOnlyStruct>(this.Id))
            {
                throw new BlockTypeException($"Block is not a {this.GetType().Name} block");
            }
        }

        public Motor(uint id): base(new EGID(id, CommonExclusiveGroups.BUILD_MOTOR_BLOCK_GROUP))
        {
			if (!BlockEngine.GetBlockInfoExists<MotorReadOnlyStruct>(this.Id))
            {
                throw new BlockTypeException($"Block is not a {this.GetType().Name} block");
            }
        }

        // custom motor properties

        /// <summary>
        /// The motor's maximum rotational velocity.
        /// </summary>
        public float TopSpeed
		{
			get
			{
				return BlockEngine.GetBlockInfo<MotorReadOnlyStruct>(Id).maxVelocity;
			}

			set
			{
				ref MotorReadOnlyStruct motor = ref BlockEngine.GetBlockInfo<MotorReadOnlyStruct>(Id);
				motor.maxVelocity = value;
			}
		}

		/// <summary>
        /// The motor's maximum rotational force.
        /// </summary>
        public float Torque
        {
            get
            {
                return BlockEngine.GetBlockInfo<MotorReadOnlyStruct>(Id).maxForce;
            }

            set
            {
                ref MotorReadOnlyStruct motor = ref BlockEngine.GetBlockInfo<MotorReadOnlyStruct>(Id);
                motor.maxForce = value;
            }
        }

		/// <summary>
        /// The motor's direction.
        /// </summary>
        public bool Reverse
        {
            get
            {
				return BlockEngine.GetBlockInfo<MotorReadOnlyStruct>(Id).reverse;
            }

            set
            {
                ref MotorReadOnlyStruct motor = ref BlockEngine.GetBlockInfo<MotorReadOnlyStruct>(Id);
				motor.reverse = value;
            }
        }
    }
}