using System;
using System.Collections;
using System.Collections.Generic;
using MoreMountains.Feedbacks;
using MoreMountains.Tools;
using UnityEngine;

namespace MoreMountains.Feel
{
    /// <summary>
    /// This class handles Feel's Snake demo's food objects, that the snake has to eat to score points
    /// </summary>
    public class SnakeFood : MonoBehaviour
    {
        /// a duration (in seconds) during which the food is inactive before moving it to another position
        public float OffDelay = 1f;
        /// the food's visual representation
        public GameObject Model;
        /// a feedback to play when food gets eaten
        public MMFeedbacks EatFeedback;
        /// a feedback to play when food appears
        public MMFeedbacks AppearFeedback;
        /// the food spawner
        public SnakeFoodSpawner Spawner { get; set; }
        
        protected Snake _snake;
        
        /// <summary>
        /// When this food gets eaten, we play its eat feedback, and start moving it somewhere else in the scene
        /// </summary>
        /// <param name="other"></param>
        protected void OnTriggerEnter2D(Collider2D other)
        {
            _snake = other.GetComponent<Snake>();

            if (_snake != null)
            {
                _snake.Eat();
                EatFeedback?.PlayFeedbacks();
                StartCoroutine(MoveFood());
            }
        }

        /// <summary>
        /// Moves the food to another spot
        /// </summary>
        /// <returns></returns>
        protected virtual IEnumerator MoveFood()
        {
            Model.SetActive(false);
            yield return MMCoroutine.WaitFor(OffDelay);
            Model.SetActive(true);
            this.transform.position = Spawner.DetermineSpawnPosition();
            AppearFeedback?.PlayFeedbacks();
        }
    }
}