using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Experimental.Rendering;
using UnityEngine.Rendering;

/* 本文件控制家园场景的光照设置
 * 1. 通过时间来设置光照
 * 2. 通过狗被唤醒来设置光照
 * 3. 通过时间来设置天空盒
 * 4. 通过时间来设置BGM音量
 */
public class HomeSunLight : MonoBehaviour
{
    // Start is called before the first frame update
    public static HomeSunLight Instance;
    public Light mainLight;
    public GameObject targetCamera;
    public Material daySkybox;
    public Material nightSkybox;

    void Awake()
    {
        // 单例模式，确保只有一个GlobalSoundManager
        if (Instance == null)
        {
            Instance = this;
            //DontDestroyOnLoad(gameObject);        // 必须关掉否则会导致原场景destroy不能执行
        }
        else
        {
            Destroy(gameObject);
        }
    }
    void Start()
    {
        GameObject homeLight = GameObject.Find("Home Light");
        int hour = System.DateTime.Now.Hour;

        if ( hour >=22 || hour < 5)     // 深夜时间
        {
            MidNightLightSetting();
        }
        else if (hour < 6 || hour >= 18)
        {
            NightLightSetting();
        }
        else
        {
            DayLightSetting();
        }
        DynamicGI.UpdateEnvironment();
    }

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

    void DayLightSetting()
    {
        Debug.Log("day time");
        // day time
        mainLight.intensity = 0.9f;
        mainLight.range = 100f;
        //targetCamera.GetComponent<Camera>().clearFlags = CameraClearFlags.SolidColor;
        //targetCamera.GetComponent<Camera>().backgroundColor = new Color(139, 202, 255, 203);
        UnityEngine.RenderSettings.ambientMode = AmbientMode.Flat;
        UnityEngine.RenderSettings.ambientLight = new Color32(200, 200, 200, 180);
        UnityEngine.RenderSettings.skybox = daySkybox;
        UnityEngine.RenderSettings.ambientIntensity = 1f;
        UnityEngine.RenderSettings.reflectionIntensity = 0.5f;
        var BGM = GameObject.Find("BGM");
        if (BGM != null)
        {
            BGM.GetComponent<AudioSource>().volume = 0.4f;
        }
    }

    void NightLightSetting()
    {
        // night time
        mainLight.intensity = 0.9f;
        mainLight.range = 100f;
        //targetCamera.GetComponent<Camera>().backgroundColor = new Color(22, 42, 113, 239);
        UnityEngine.RenderSettings.skybox = nightSkybox;
        UnityEngine.RenderSettings.ambientIntensity = 0.2f;
        UnityEngine.RenderSettings.reflectionIntensity = 0.2f;
        var BGM = GameObject.Find("BGM");
        if (BGM != null)
        {
            BGM.GetComponent<AudioSource>().volume = 0.4f;
        }
    }

    void MidNightLightSetting()
    {
        mainLight.intensity = 0.1f;
        //targetCamera.GetComponent<Camera>().backgroundColor = new Color(22, 42, 113, 239);
        mainLight.range = 5f;
        UnityEngine.RenderSettings.skybox = nightSkybox;
        UnityEngine.RenderSettings.ambientIntensity = 0.2f;
        UnityEngine.RenderSettings.reflectionIntensity = 0.2f;
        var BGM = GameObject.Find("BGM");
        if (BGM != null)
        {
            BGM.GetComponent<AudioSource>().volume = 0.1f;
        }
    }

    // 深夜模式当狗被唤醒时候切换显示亮度
    public void DogWakeUpLightSetting()
    {
        int hour = System.DateTime.Now.Hour;
        if (hour >= 22 || hour < 5)     // 深夜时间
        {
            HomeSunLight.Instance.NightLightSetting();
        }
    }
}