using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Events;
using UltraCombos.Utility;
using System.Linq;
using UltraCombos.Utility.Attributes;

namespace UltraCombos.Frozen
{
    public enum State
    {
        Standby,
        Day,
        Night,
        Night1,
        Night2,
        Night3,
        Night4,
        Night5,
    }

    public enum Form
    {
        FullSpace,
        SingleWall,
    }

    public class SceneController : Singleton<SceneController>
    {
        public State state = State.Standby;
        public Form format = Form.FullSpace;

        public UnityEvent onStart = new UnityEvent();
        public UnityEvent onSceneStandby = new UnityEvent();
        public UnityEvent onSceneDay = new UnityEvent();
        public UnityEvent onSceneNight = new UnityEvent();

        [Header("Debug")]
        [Range(0, 1), ReadOnly]
        public float rate = 0.0f;
        float target_rate = 0.0f;
        [ReadOnly]
        public List<Material> spaceMaterials = new List<Material>();
        [ReadOnly, SerializeField]
        List<CharacterBehaviour> characters;

        private IEnumerator Start()
        {
            characters = FindObjectsOfType<CharacterBehaviour>().ToList();
            switch (state)
            {
                case State.Standby:
                    GoStandby();
                    break;
                case State.Day:
                    GoDay();
                    break;
                case State.Night:
                    GoNight();
                    break;
                case State.Night1:
                    GoNight1();
                    break;
                case State.Night2:
                    GoNight2();
                    break;
                case State.Night3:
                    GoNight3();
                    break;
                case State.Night4:
                    GoNight4();
                    break;
                case State.Night5:
                    GoNight5();
                    break;
            }
            yield return new WaitForSeconds(1);
            onStart.Invoke();
        }

        private void Update()
        {
            rate = Mathf.Lerp(rate, target_rate, 0.02f);

            foreach (var mat in spaceMaterials)
                mat.SetFloat("_Rate", rate);

            foreach (var chr in characters)
                chr.Active = chr.appearSataes.List.Contains(state);
        }

        public void GoStandby()
        {
            state = State.Standby;
            target_rate = 0.0f;
            onSceneStandby.Invoke();
        }

        public void GoDay()
        {
            state = State.Day;
            target_rate = 0.0f;
            onSceneDay.Invoke();
        }

        public void GoNight()
        {
            state = State.Night;
            target_rate = 1.0f;
            onSceneNight.Invoke();
        }

        public void GoNight1()
        {
            state = State.Night1;
            target_rate = 1.0f;
        }
        public void GoNight2()
        {
            state = State.Night2;
            target_rate = 1.0f;
        }
        public void GoNight3()
        {
            state = State.Night3;
            target_rate = 1.0f;
        }
        public void GoNight4()
        {
            state = State.Night4;
            target_rate = 1.0f;
        }
        public void GoNight5()
        {
            state = State.Night5;
            target_rate = 1.0f;
        }
    }
}