using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using TMPro;

namespace game
{
    [RequireComponent(typeof(TextMeshPro))]
    public class FloatingText : MonoBehaviour
    {
        [Header("Type")]
        public EventPinballBonusType FloatingTextType;

        [Header("Movement Settings")]
        public float moveSpeed = 1f;
        public float fadeDuration = 1f;

        [Header("Renderer")]
        public int OrderInLayer = 3;

        private TextMeshPro textMesh;
        private float currentAlpha = 1f;
        private float timer = 0f;
        private Vector3 moveDirection = Vector3.up;

        private void Awake()
        {
            textMesh = GetComponent<TextMeshPro>();

            var renderer = GetComponent<Renderer>();
            renderer.sortingOrder = OrderInLayer;
        }

        public void Initialize(string text, Vector3 position)
        {
            transform.position = position;
            textMesh.text = text;

            currentAlpha = 1f;
            timer = 0f;
            gameObject.SetActive(true);
        }

        private void Update()
        {
            // 移动
            transform.position += moveDirection * moveSpeed * Time.deltaTime;

            // 淡出
            timer += Time.deltaTime;
            if (timer >= fadeDuration)
            {
                if (FloatingTextType == EventPinballBonusType.TypeScore)
                {
                    FloatingTextPool.Instance.ReturnToScorePool(this);
                }
                else if (FloatingTextType == EventPinballBonusType.TypeMultiple)
                {
                    FloatingTextPool.Instance.ReturnToMultiplePool(this);
                }
                return;
            }

            currentAlpha = Mathf.Lerp(1f, 0f, timer / fadeDuration);
            var color = textMesh.color;
            color.a = currentAlpha;
            textMesh.color = color;
        }
    }
}