using Invector.vCharacterController.AI.FSMBehaviour;
using UnityEngine;

namespace ArcherEnemy
{
	/// <summary>
	/// Decision checking if player is in optimal shooting range
	/// Returns true when player is far enough but not too far
	/// </summary>
	[CreateAssetMenu(menuName = "Invector/FSM/Decisions/Archer/Player In Shoot Range")]
	public class DEC_PlayerInShootRange : vStateDecision
	{
		public override string categoryName => "Archer/Combat";
		public override string defaultName => "Player In Shoot Range";

		[Header("Range Configuration")]
		[Tooltip("Minimum safe distance to start shooting")]
		public float minShootDistance = 8f;

		[Tooltip("Maximum effective shooting distance")]
		public float maxShootDistance = 25f;

		[Tooltip("Also check if we have clear line of sight")]
		public bool checkLineOfSight = true;

		[Tooltip("Layers that block line of sight")]
		public LayerMask obstacleMask = -1;

		[Header("Debug")]
		[Tooltip("Enable debug logging")]
		public bool enableDebug = false;

		[Tooltip("Show range gizmos")]
		public bool showGizmos = true;

		public override bool Decide(vIFSMBehaviourController fsmBehaviour)
		{
			Transform target = GetTarget(fsmBehaviour);

			if (target == null)
			{
				if (enableDebug) Debug.Log("[DEC_PlayerInShootRange] No target found");
				return false;
			}

			Vector3 archerPos = fsmBehaviour.transform.position;
			Vector3 targetPos = target.position;

			float distance = Vector3.Distance(archerPos, targetPos);

			// Check distance range
			bool inRange = distance >= minShootDistance && distance <= maxShootDistance;

			if (!inRange)
			{
				if (enableDebug)
				{
					if (distance < minShootDistance)
						Debug.Log($"[DEC_PlayerInShootRange] Player too close: {distance:F1}m (min: {minShootDistance})");
					else
						Debug.Log($"[DEC_PlayerInShootRange] Player too far: {distance:F1}m (max: {maxShootDistance})");
				}
				return false;
			}

			// Check line of sight if enabled
			if (checkLineOfSight)
			{
				Vector3 shootPoint = archerPos + Vector3.up * 1.5f; // Approximate chest height
				Vector3 targetPoint = targetPos + Vector3.up * 1f;
				Vector3 direction = targetPoint - shootPoint;

				if (Physics.Raycast(shootPoint, direction.normalized, distance, obstacleMask, QueryTriggerInteraction.Ignore))
				{
					if (enableDebug) Debug.Log("[DEC_PlayerInShootRange] Line of sight blocked");
					return false;
				}
			}

			if (enableDebug)
			{
				Debug.Log($"[DEC_PlayerInShootRange] IN RANGE: {distance:F1}m");
			}

			return true;
		}

		private Transform GetTarget(vIFSMBehaviourController fsmBehaviour)
		{
			// Try through AI controller
			var aiController = fsmBehaviour as Invector.vCharacterController.AI.vIControlAI;
			if (aiController != null && aiController.currentTarget != null)
				return aiController.currentTarget.transform;

			// Fallback - find player
			GameObject player = GameObject.FindGameObjectWithTag("Player");
			return player?.transform;
		}

#if UNITY_EDITOR

		private void OnDrawGizmosSelected()
		{
			if (!showGizmos) return;

			// This would need to be drawn from the archer's position in-game
			// For now, just a visual reference
		}

#endif
	}
}