using System;
using System.Collections;
using UnityEngine;
using AibisDream;
using AibisDream.FixSystem;
using UnityEngine.Rendering;
using Yarn.Unity;
using DG.Tweening;
using VolFx;
using AibisDream.Kit;

public class UFSystem : MonoBehaviour
{
    private GameObject _UFCover;
    private GameObject _UAudioule;

    private EyeSystem eyeSystem;

    public GameObject UFPanel;

    public SpriteRenderer face;

    private bool isLoopImage;

    [Header("Global UF Cover")]
    [SerializeField] private Volume FullAscillVolume;

    [Header("Legacy Volumes (unused; kept for scene refs)")]
    [SerializeField] private Volume imageAscillVolume;
    [SerializeField] private Volume imageVolume;
    [SerializeField] private Volume finalVolume;

    private AsciiVol ascii;
    private Tween scaleTween;

    public enum UFState
    {
        UF,
        imagination,
        memory
    }

    private void Awake()
    {
        FixSystemCenter.SystemDic.Register(this);
        eyeSystem = FindObjectOfType<EyeSystem>();
        ResetLegacyTargetVolumes();
    }

    private void ResetLegacyTargetVolumes()
    {
        if (imageAscillVolume != null) imageAscillVolume.weight = 0f;
        if (imageVolume != null) imageVolume.weight = 0f;
        if (finalVolume != null) finalVolume.weight = 0f;
    }

    [YarnCommand("UF_spriteIn")]
    public IEnumerator UF_spriteIn(float duration = 1.5f)
    {
        if (eyeSystem.CurrentTarget != null)
        {
            AudioManager.Instance.PlaySfx("event:/ActionFB/color_imagine");
            eyeSystem.CurrentTarget.ImageIn(duration);
        }

        yield return new WaitForSeconds(duration);
    }

    [YarnCommand("UF_spriteOut")]
    public IEnumerator UF_spriteOut(float duration = 1.5f)
    {
        if (eyeSystem.CurrentTarget != null)
        {
            AudioManager.Instance.PlaySfx("event:/ActionFB/color_imagine");
            eyeSystem.CurrentTarget.ImageOut(duration);
        }

        yield return new WaitForSeconds(duration);
    }

    [YarnCommand("UF_AllspriteIn")]
    public IEnumerator UF_AllspriteIn(float duration = 1.5f)
    {
        foreach (EyeTarget target in eyeSystem.Targets)
        {
            target.ImageIn(duration);
        }

        yield return new WaitForSeconds(duration);
    }

    [YarnCommand("UF_AllspriteOut")]
    public IEnumerator UF_AllspriteOut(float duration = 1.5f)
    {
        foreach (EyeTarget target in eyeSystem.Targets)
        {
            target.ImageOut(duration);
        }

        yield return new WaitForSeconds(duration);
    }

    [YarnCommand("UF_faceIn")]
    public IEnumerator UF_faceIn(float duration = 1.5f)
    {
        face.gameObject.SetActive(true);
        face.DOFade(1f, duration);
        yield return new WaitForSeconds(duration);
    }

    [YarnCommand("UF_faceOut")]
    public IEnumerator UF_faceOut(float duration = 1.5f)
    {
        face.DOFade(0f, duration);
        yield return new WaitForSeconds(duration);
        face.gameObject.SetActive(false);
    }

    [YarnCommand("UF_ImaginationEffectIn")]
    public IEnumerator UF_ImaginationEffectIn(float duration = 1.5f)
    {
        AudioManager.Instance.PlaySfx("event:/ActionFB/color_imagine");
        eyeSystem?.TweenUnifiedUfWeights(0f, 1f, 0f, duration);
        yield return new WaitForSeconds(duration);
    }

    [YarnCommand("UF_ImaginationEffectOut")]
    public IEnumerator UF_ImaginationEffectOut(float duration = 1.5f)
    {
        eyeSystem?.TweenUnifiedUfWeights(0f, 0f, 0f, duration);
        AudioManager.Instance.PlaySfx("event:/ActionFB/color_imagine");
        yield return new WaitForSeconds(duration);
    }

    [YarnCommand("UF_MemoryEffectIn")]
    public IEnumerator UF_MemoryEffectIn(float duration = 1.5f)
    {
        AudioManager.Instance.PlaySfx("event:/ActionFB/color_imagine");
        eyeSystem?.TweenUnifiedUfWeights(0f, 0f, 1f, duration);
        yield return new WaitForSeconds(duration);
    }

    [YarnCommand("UF_MemoryEffectOut")]
    public IEnumerator UF_MemoryEffectOut(float duration = 1.5f)
    {
        eyeSystem?.TweenUnifiedUfWeights(0f, 0f, 0f, duration);
        AudioManager.Instance.PlaySfx("event:/ActionFB/color_imagine");
        yield return new WaitForSeconds(duration);
    }

    [YarnCommand("UF_EyeTargetAscillIn")]
    public IEnumerator UF_EyeTargetAscillIn(float duration = 1.5f)
    {
        AudioManager.Instance.PlaySfx("event:/ActionFB/color_imagine");
        eyeSystem?.TweenUnifiedUfWeights(1f, 0f, 0f, duration);
        yield return new WaitForSeconds(duration);
    }

    [YarnCommand("UF_EyeTargetAscillOut")]
    public IEnumerator UF_EyeTargetAscillOut(float duration = 1.5f)
    {
        eyeSystem?.TweenUnifiedUfWeights(0f, 0f, 0f, duration);
        AudioManager.Instance.PlaySfx("event:/ActionFB/color_imagine");
        yield return new WaitForSeconds(duration);
    }

    [YarnCommand("UF_SetBorkenValue")]
    public void UF_Borken(int value)
    {
        if (FullAscillVolume != null && FullAscillVolume.profile.TryGet(out ascii))
        {
            ascii.m_Depth.value = value;
            ascii.m_Ascii.value = Color.red;
        }
    }

    [YarnCommand("StartUFEffect_loop")]
    public void UFImageLoop()
    {
        StartCoroutine(UFImageLoopProcess());
    }

    [YarnCommand("StopUFEffect_loop")]
    public void StopUFImageLoop()
    {
        isLoopImage = false;
    }

    [YarnCommand("UF_fightEffect")]
    public void UF_fightEffect()
    {
        scaleTween = DOTween.To(() => 0f, t =>
            {
                float dreamWeight = Mathf.Lerp(0f, 1f, t);
                float asciiWeight = Mathf.Lerp(0f, 1f, t);
                float memoryWeight = Mathf.Lerp(1f, 0f, t);
                eyeSystem?.SetUnifiedUfWeights(asciiWeight, dreamWeight, memoryWeight);
            }, 1f, 1f)
            .SetEase(Ease.InOutSine)
            .SetLoops(-1, LoopType.Yoyo);
    }

    [YarnCommand("UF_StopfightEffect")]
    public void UF_StopfightEffect()
    {
        scaleTween?.Kill();
    }

    public IEnumerator UFImageLoopProcess()
    {
        int index = 0;
        isLoopImage = true;
        while (isLoopImage)
        {
            eyeSystem.StartCoroutine(eyeSystem.SetTargetCoroutine(eyeSystem.Targets[index].name, false));
            yield return new WaitForSeconds(0.5f);
            StartCoroutine(UF_spriteIn(0.5f));
            StartCoroutine(UF_ImaginationEffectIn(0.5f));
            yield return new WaitForSeconds(0.5f);
            StartCoroutine(UF_ImaginationEffectOut(0.5f));
            StartCoroutine(UF_MemoryEffectIn(0.5f));
            yield return new WaitForSeconds(1f);
            StartCoroutine(UF_MemoryEffectOut(0.5f));
            index++;
            if (index >= eyeSystem.Targets.Count - 2)
            {
                index = 0;
            }
        }
    }

    public void OpenUFView()
    {
        if (FullAscillVolume != null && !FullAscillVolume.gameObject.activeInHierarchy)
        {
            FullAscillVolume.gameObject.SetActive(true);
        }

        ResetLegacyTargetVolumes();
        eyeSystem?.SetUnifiedUfWeights(1f, 0f, 0f);
    }

    public void CloseUFView()
    {
        if (FullAscillVolume != null && FullAscillVolume.gameObject.activeInHierarchy)
        {
            FullAscillVolume.gameObject.SetActive(false);
        }

        ResetLegacyTargetVolumes();
        eyeSystem?.SetUnifiedUfWeights(0f, 0f, 0f);
    }

    public void OpenCover()
    {
        var bodyModuleSystem = FixSystemCenter.SystemDic.Get<BodyModuleSystem>();
        _UFCover = bodyModuleSystem.FindBodyModuleByName("UF").transform.Find("Cover").gameObject;
        if (_UFCover.activeInHierarchy)
        {
            _UFCover.SetActive(false);
        }
    }

    public void RemoveUF()
    {
        var bodyModuleSystem = FixSystemCenter.SystemDic.Get<BodyModuleSystem>();
        _UAudioule = bodyModuleSystem.FindBodyModuleByName("UF").gameObject;
        if (_UAudioule.activeInHierarchy)
        {
            _UAudioule.SetActive(false);
        }
    }

    [YarnCommand("UF_SwitchState")]
    public IEnumerator SwitchState(string stateName, float duration)
    {
        if (!Enum.TryParse(stateName, true, out UFState state))
        {
            Debug.LogError($"Invalid state name: {stateName}");
            yield break;
        }

        AudioManager.Instance.PlaySfx("event:/ActionFB/color_imagine");
        switch (state)
        {
            case UFState.UF:
                eyeSystem?.TweenUnifiedUfWeights(1f, 0f, 0f, duration);
                break;
            case UFState.imagination:
                eyeSystem?.TweenUnifiedUfWeights(0f, 1f, 0f, duration);
                break;
            case UFState.memory:
                eyeSystem?.TweenUnifiedUfWeights(0f, 0f, 1f, duration);
                break;
            default:
                Debug.LogError($"Unhandled state: {state}");
                yield break;
        }

        yield return new WaitForSeconds(duration);
    }
}