using UnityEngine;
using System.Collections;

public class TimeOfDayManager : MonoBehaviour
{
    public TimeOfDayData Data;

    [Range(0.0f, 1f)] public float currentTimeOfDay;
    public FloatVariable CurrentTimeVariable;

     public float secondsInFullDay = 120f;

     private float sunInitialIntensity;

    [HideInInspector]  public float timeMultiplier = 1f;

    #region Curves and Gradients

    private UltimateBloom ultimateBloom;

    [Header("Bloom")]  public float BloomThreshold;

    public AnimationCurve BloomThresholdCurve;
     public float BloomIntensity;

    public AnimationCurve BloomIntensityCurve;

    [Header("Ambience")]  public float CurrentAmbientIntensity;
     public Color CurrentAmbientColor;

    public AnimationCurve AmbientCurve;

    public Gradient AmbientColorCurve;

    [Header("Reflection")]  public float CurrentReflectionIntensity;

    public AnimationCurve ReflectionIntensityCurve;

    [Header("Fog")]  public float FogIntensity;
     public float FogDistance;
    public float FogStartDistance;
     public Color CurrentFogColor;

    public Gradient FogColorGradient;

    public AnimationCurve FogColorCurve;
    public AnimationCurve FogIntensityCurve;
    public AnimationCurve FogDistanceCurve;

    [Header("Sun")] public Light sun;
    public AnimationCurve SunLightIntensityCurve;
    public Gradient SunLightColorGradient;

    #endregion

    private void Start()
    {
        ApplyData(Data);
        sunInitialIntensity = sun.intensity;

        Camera playercam = FindObjectOfType<Camera>();
        if (playercam)
        {
            ultimateBloom = Camera.main.GetComponent<UltimateBloom>();
            BloomIntensity = Camera.main.GetComponent<UltimateBloom>().m_BloomIntensity;
            BloomThreshold = ultimateBloom.m_BloomThreshhold;
        }
    }

    private void ApplyData(TimeOfDayData data)
    {
        secondsInFullDay = data.secondsInFullDay;
        currentTimeOfDay = data.currentTimeOfDay;
        BloomThreshold = data.BloomThreshold;
        BloomThresholdCurve = data.BloomThresholdCurve;
        BloomIntensity = data.BloomIntensity;
        BloomIntensityCurve = data.BloomIntensityCurve;

        CurrentAmbientIntensity = data.CurrentAmbientIntensity;
        CurrentAmbientColor = data.CurrentAmbientColor;
        AmbientCurve = data.AmbientCurve;
        AmbientColorCurve = data.AmbientColorCurve;

        CurrentReflectionIntensity = data.CurrentReflectionIntensity;
        ReflectionIntensityCurve = data.ReflectionIntensityCurve;

        FogIntensity = data.FogIntensity;
        FogIntensityCurve = data.FogIntensityCurve;
        CurrentFogColor = data.CurrentFogColor;
        FogColorGradient = data.FogColorGradient;
        FogColorCurve = data.FogColorCurve;
        FogIntensityCurve = data.FogIntensityCurve;
        FogDistanceCurve = data.FogDistanceCurve;

        SunLightIntensityCurve = data.SunLightIntensityCurve;
        SunLightColorGradient = data.SunLightColorGradient;
    }


    private void Update()
    {
        UpdateSun();
    }

    private void UpdateSunRotation()
    {
        sun.transform.localRotation =
            Quaternion.Euler((float)(currentTimeOfDay * 360.0 - 90.0), 170f, 0.0f);
    }

    private void UpdateSun()
    {
        UpdateSunRotation();
        UpdateRenderSettings();
        currentTimeOfDay += Time.deltaTime / secondsInFullDay * timeMultiplier;
        if (currentTimeOfDay >= 1.0)
            currentTimeOfDay = 0.0f;
        if (currentTimeOfDay <= 0.0)
            currentTimeOfDay = 0.0f;
        CurrentTimeVariable.Value = currentTimeOfDay;
    }

    private void UpdateRenderSettings()
    {
        sun.intensity = SunLightIntensityCurve.Evaluate(currentTimeOfDay);
        sun.color = SunLightColorGradient.Evaluate(currentTimeOfDay);
        FogIntensity = FogIntensityCurve.Evaluate(currentTimeOfDay);
        RenderSettings.ambientIntensity = AmbientCurve.Evaluate(currentTimeOfDay);
        RenderSettings.fogStartDistance = FogStartDistance;
        RenderSettings.fogColor = FogColorGradient.Evaluate(currentTimeOfDay);
        RenderSettings.fogDensity = FogIntensityCurve.Evaluate(currentTimeOfDay);
        RenderSettings.fogEndDistance = FogDistanceCurve.Evaluate(currentTimeOfDay);
        RenderSettings.ambientSkyColor = AmbientColorCurve.Evaluate(currentTimeOfDay);
        RenderSettings.reflectionIntensity = ReflectionIntensityCurve.Evaluate(currentTimeOfDay);
        if (ultimateBloom != null)
        {
            ultimateBloom.m_BloomThreshhold = BloomThresholdCurve.Evaluate(currentTimeOfDay);
            BloomThreshold = ultimateBloom.m_BloomThreshhold;

            ultimateBloom.m_BloomIntensity = BloomIntensityCurve.Evaluate(currentTimeOfDay);
            BloomIntensity = ultimateBloom.m_BloomIntensity;
        }
        else
        {
            ultimateBloom = FindObjectOfType<UltimateBloom>();
        }

        CurrentReflectionIntensity = RenderSettings.reflectionIntensity;
        CurrentAmbientColor = RenderSettings.ambientSkyColor;
        CurrentFogColor = RenderSettings.fogColor;
        CurrentAmbientIntensity = RenderSettings.ambientIntensity;
    }


}