using System;
using UnityEngine;
using UnityEngine.Rendering;

public class DynamicTime : MonoBehaviour
{
	public static DynamicTime Instance;

	public const string PlayerPrefsKey = "SelectedTOD";

	[Serializable]
	public class TimePreset
	{
		[Header("Sky")]
		public Material Skybox;
		[Header("Ambient Lighting")]
		public float AmbientIntensity;
		public Color AmbientSkyColor;
		public Color AmbientEquatorColor;
		public Color AmbientGroundColor;
		public AmbientMode AmbientMode;
		[Header("Fog")]
		public bool Fog;
		public float FogDensity;
		public float FogStartDistance;
		public float FogEndDistance;
		public Color FogColor;
		public FogMode FogMode;
		[Header("Objects")]
		public GameObject[] ObjectsToEnable;
		public GameObject[] ObjectsToDisable;

		internal TimeOfDay tod;
	}

	public enum TimeOfDay
	{
		Day,
		Dusk,
		Dawn,
		Night,
		Nightmare
	}

	public TimePreset DayPreset = new();
	public TimePreset DuskPreset = new();
	public TimePreset DawnPreset = new();
	public TimePreset NightPreset = new();
	public TimePreset NightmarePreset = new();

	public TimeOfDay ActiveTOD;

	private void Awake()
	{
		Instance = this;
		DayPreset.tod = TimeOfDay.Day;
		DuskPreset.tod = TimeOfDay.Dusk;
		DawnPreset.tod = TimeOfDay.Dawn;
		NightPreset.tod = TimeOfDay.Night;
		NightmarePreset.tod = TimeOfDay.Nightmare;
	}

	private void Start()
	{
		if (PlayerPrefs.HasKey(PlayerPrefsKey))
			ActiveTOD = (TimeOfDay)PlayerPrefs.GetInt(PlayerPrefsKey, 0);
		SetTime(ActiveTOD);
	}

	private TimePreset GetTimePreset(TimeOfDay tod)
	{
		switch (tod)
		{
			case TimeOfDay.Day:
				return DayPreset;
			case TimeOfDay.Dusk:
				return DuskPreset;
			case TimeOfDay.Dawn:
				return DawnPreset;
			case TimeOfDay.Night:
				return NightPreset;
			case TimeOfDay.Nightmare:
				return NightmarePreset;
		}
		return null;
	}

	public void SetTime(TimeOfDay tod)
	{
		var preset = GetTimePreset(tod);
		if (preset != null)
			ApplyTimePreset(preset);
	}

	private void ApplyTimePreset(TimePreset preset)
	{
		RenderSettings.skybox = preset.Skybox;

		RenderSettings.ambientIntensity = preset.AmbientIntensity;
		RenderSettings.ambientMode = preset.AmbientMode;
		RenderSettings.ambientSkyColor = preset.AmbientSkyColor;
		RenderSettings.ambientEquatorColor = preset.AmbientEquatorColor;
		RenderSettings.ambientGroundColor = preset.AmbientGroundColor;

		RenderSettings.fog = preset.Fog;
		RenderSettings.fogColor = preset.FogColor;
		RenderSettings.fogDensity = preset.FogDensity;
		RenderSettings.fogStartDistance = preset.FogStartDistance;
		RenderSettings.fogEndDistance = preset.FogEndDistance;
		RenderSettings.fogMode = preset.FogMode;

		foreach (var obj in preset.ObjectsToEnable)
			obj.SetActive(true);
		foreach (var obj in preset.ObjectsToDisable)
			obj.SetActive(false);
	}
}