using UnityEngine;
using Pooling;

namespace Minigames.DivingForPictures
{
    /// <summary>
    /// Spawns bubbles at intervals, randomizing their properties and assigning a random sprite to each.
    /// </summary>
    public class BubbleSpawner : MonoBehaviour
    {
        public Bubble bubblePrefab;
        public Sprite[] bubbleSprites; // Assign in inspector
        public float spawnInterval = 0.3f;
        public Vector2 speedRange = new Vector2(0.5f, 2f);
        public Vector2 scaleRange = new Vector2(0.3f, 0.7f);
        public Vector2 wobbleSpeedRange = new Vector2(1f, 3f);
        public Vector2 wobbleAmountRange = new Vector2(0.05f, 0.15f);
        public float spawnXMin = -3.5f;
        public float spawnXMax = 3.5f;
        public float spawnY = -5f;
        public float wobbleMinScale = 0.2f;
        public float wobbleMaxScale = 1.2f;
        
        [Header("Object Pooling")]
        public bool useObjectPooling = true;
        public int initialPoolSize = 10;
        public int maxPoolSize = 30;

        [Header("Surfacing Settings")]
        [Tooltip("Factor to multiply bubble speed by when surfacing (0.5 = half speed)")]
        [SerializeField] private float surfacingSpeedFactor = 0.5f;

        private float _timer;
        private float _nextSpawnInterval;
        private BubblePool _bubblePool;
        private Camera _mainCamera; // Cache camera reference
        private bool _isSurfacing = false;

        void Awake()
        {
            _mainCamera = Camera.main;
            
            if (useObjectPooling)
            {
                // Create the bubble pool
                GameObject poolGO = new GameObject("BubblePool");
                poolGO.transform.SetParent(transform);
                _bubblePool = poolGO.AddComponent<BubblePool>();
                _bubblePool.initialPoolSize = initialPoolSize;
                _bubblePool.maxPoolSize = maxPoolSize;
                _bubblePool.Initialize(bubblePrefab);
                
                // Periodically check for pool statistics in debug builds
                #if DEVELOPMENT_BUILD || UNITY_EDITOR
                InvokeRepeating(nameof(LogPoolStats), 5f, 30f);
                #endif
            }
        }

        void Start()
        {
            // Initialize the next spawn interval
            _nextSpawnInterval = GetRandomizedInterval();
        }

        void Update()
        {
            _timer += Time.deltaTime;
            if (_timer >= _nextSpawnInterval)
            {
                SpawnBubble();
                _timer = 0f;
                _nextSpawnInterval = GetRandomizedInterval();
            }
        }

        /// <summary>
        /// Returns a randomized interval for bubble spawning.
        /// </summary>
        /// <returns>Randomized interval in seconds.</returns>
        float GetRandomizedInterval()
        {
            return spawnInterval * Random.Range(0.8f, 1.2f);
        }

        /// <summary>
        /// Spawns a bubble with randomized properties and assigns a random sprite.
        /// </summary>
        void SpawnBubble()
        {
            float x = Random.Range(spawnXMin, spawnXMax);
            Vector3 spawnPos = new Vector3(x, spawnY, 0f);
            
            Bubble bubble;
            if (useObjectPooling && _bubblePool != null)
            {
                bubble = _bubblePool.GetBubble();
                bubble.transform.position = spawnPos;
            }
            else
            {
                bubble = Instantiate(bubblePrefab, spawnPos, Quaternion.identity, transform);
            }
            
            // Randomize bubble properties
            float baseSpeed = Random.Range(speedRange.x, speedRange.y);
            
            // Apply surfacing speed reduction if needed
            if (_isSurfacing)
            {
                bubble.speed = baseSpeed * surfacingSpeedFactor;
            }
            else
            {
                bubble.speed = baseSpeed;
            }
            
            bubble.wobbleSpeed = Random.Range(wobbleSpeedRange.x, wobbleSpeedRange.y);
            
            // Set base scale (initial size) for the bubble
            float baseScale = Random.Range(scaleRange.x, scaleRange.y);
            bubble.SetBaseScale(baseScale);
            
            // Assign random sprite to BubbleSprite (fixed naming from BottleSprite)
            if (bubbleSprites != null && bubbleSprites.Length > 0)
            {
                Sprite randomSprite = bubbleSprites[Random.Range(0, bubbleSprites.Length)];
                bubble.SetBubbleSprite(randomSprite);
            }

            // Random rotation
            bubble.transform.rotation = Quaternion.Euler(0f, 0f, Random.Range(0f, 360f));
            
            // Pass min/max scale for wobble clamping
            bubble.SetWobbleScaleLimits(wobbleMinScale, wobbleMaxScale);
        }

        /// <summary>
        /// Start surfacing mode - slow down all bubbles
        /// </summary>
        public void StartSurfacing()
        {
            if (_isSurfacing) return; // Already surfacing
            
            _isSurfacing = true;
            
            // Slow down all existing bubbles
            Bubble[] activeBubbles = FindObjectsOfType<Bubble>();
            foreach (Bubble bubble in activeBubbles)
            {
                bubble.speed *= surfacingSpeedFactor;
            }
            
            Debug.Log($"[BubbleSpawner] Started surfacing mode. Bubbles slowed to {surfacingSpeedFactor * 100}% speed.");
        }

        /// <summary>
        /// Logs the current pool statistics for debugging
        /// </summary>
        private void LogPoolStats()
        {
            if (_bubblePool != null)
            {
                _bubblePool.LogPoolStats();
            }
        }
    }
}