using System;
using System.Collections.Generic;
using System.Linq;
using UnityEngine;
using Random = UnityEngine.Random;

namespace Bow
{
    public class ArcheryRange : MonoBehaviour
    {
        public Transform targetStartPosition;
        public Transform targetEndPosition;
        public GameObject targetPrefab;
        public StartTarget startTarget;

        public Vector3 minRandomOffset = new Vector3(0f, 0f, -5f);
        public Vector3 maxRandomOffset = new Vector3(0f, 0f, 5f);
        public float roundLength = 60f;
        public float targetSpawnTime = 3f;


        private List<ArcheryTarget> _targets;
        private float _score;
        private float _maxScore;
        private float _roundEndTime;
        private float _nextTargetTime;
        private float _startEndDistance;
        private bool _roundActive;

        // Start is called before the first frame update
        void Start()
        {
            _roundActive = false;
            _targets = new List<ArcheryTarget>();
            _score = 0;
            _maxScore = 0;
            _roundEndTime = 0f;
            _startEndDistance = Vector3.Distance(targetStartPosition.position, targetEndPosition.position);
        }

        // Update is called once per frame
        void Update()
        {
            if (!_roundActive) return;

            if (Time.time >= _roundEndTime + roundLength)
            {
                Reset();
            }
            else
            {
                if (Time.time >= _nextTargetTime)
                {
                    _nextTargetTime = Time.time + targetSpawnTime;
                    SpawnTarget();
                }
            }
        }

        private void SpawnTarget()
        {
            var randomPos = targetStartPosition.position + new Vector3(
                Random.Range(minRandomOffset.x, maxRandomOffset.x),
                Random.Range(minRandomOffset.y, maxRandomOffset.y), Random.Range(minRandomOffset.z, maxRandomOffset.z));
            var prefab = Instantiate(targetPrefab, randomPos, Quaternion.identity, null);
            prefab.transform.Rotate(new Vector3(0, -90, 0));
            ArcheryTarget target = prefab.GetComponent<ArcheryTarget>();
            target.endPosition = targetEndPosition.position;
            target.archeryRange = this;

            _targets.Add(target);
        }


        public void Reset()
        {
            foreach (var target in _targets.Where(target => target != null))
            {
                Destroy(target.gameObject);
            }


            _targets = new List<ArcheryTarget>();
            if (_maxScore < _score) _maxScore = _score;
            _score = 0;
            Debug.Log(_maxScore);
            startTarget.ShowTarget();
            _roundActive = false;
        }

        public void StartRound()
        {
            _roundEndTime = Time.time + roundLength;
            _nextTargetTime = Time.time;
            _roundActive = true;
        }

        public void AddScore(float distance)
        {
            _score += _startEndDistance - (_startEndDistance - distance);
            Debug.Log(_score);
        }
    }
}