using System;
using System.Collections;
using UnityEngine;
using UnityEngine.UIElements;

public class VoiceController : MonoBehaviour
{
    // Start is called once before the first execution of Update after the MonoBehaviour is created
    private VisualElement waveForm;
    private Button voiceBtn;
    private Coroutine waveCoroutine;
    void Start()
    {
        var root = GetComponent<UIDocument>().rootVisualElement;
        var voiceArea = root.Q<VisualElement>("voiceArea");
        waveForm = voiceArea.Q<VisualElement>("waveForm");
        voiceBtn = voiceArea.Q<Button>("voice");

        // root加载完成后，所有element算出位置后再进行计算
        root.RegisterCallback<GeometryChangedEvent>(e => OnMainMenuClickGeometryChanged(e));
    }

    // Update is called once per frame
    void Update()
    {
        
    }

    IEnumerator waveFormAnimation()
    {
        while (true)
        {
            waveForm.style.height = UnityEngine.Random.Range(15f, 30f);
            float alpha = UnityEngine.Random.Range(0.6f, 1f);
            waveForm.style.unityBackgroundImageTintColor = new Color(1f, 1f, 1f, alpha);
            yield return new WaitForSeconds(0.1f);
        }
    }

    void OnMainMenuClickGeometryChanged(GeometryChangedEvent evt)
    {
        if (waveCoroutine == null)
        {
            waveCoroutine = StartCoroutine(waveFormAnimation());
        }
    }
}