using System.Collections;
using System.Collections.Generic;
using AibisDream.Utility;
using UnityEngine;
using Yarn.Unity;

public class ActorManager : MonoBehaviour
{
    [Header("Actors")]
    private List<Actor> actors = new();

    [Header("Slots")]
    public List<Transform> slotList = new(); // 用于在编辑器中设置插槽
    private Dictionary<string, Transform> slots = new();

    [YarnCommand("fade_in_actor")]
    public IEnumerator FadeInActorByName(string actorName, float duration)
    {
        var actor = actors.Find(a => a.name == actorName);
        if (actor != null)
        {
            yield return StartCoroutine(FadeActor(actor.GetComponent<SpriteRenderer>(), 0f, 1f, duration));
        }
        else
        {
            Debug.LogError($"Actor with name {actorName} not found.");
        }
    }

    [YarnCommand("fade_out_actor")]
    public IEnumerator FadeOutActorByName(string actorName, float duration)
    {
        var actor = actors.Find(a => a.name == actorName);
        if (actor != null)
        {
            yield return StartCoroutine(FadeActor(actor.GetComponent<SpriteRenderer>(), 1f, 0f, duration));
        }
        else
        {
            Debug.LogError($"Actor with name {actorName} not found.");
        }
    }

    [YarnCommand("play_actor_animation")]
    public void PlayActorAnimation(string actorName, string animationName)
    {
        var actor = actors.Find(a => a.name == actorName);
        if (actor != null)
        {
            actor.SetAnimationState(animationName);
        }
        else
        {
            Debug.LogError($"Actor with name {actorName} not found.");
        }
    }

    [YarnCommand("initialize_actor_at_slot")]
    public void InitializeActorAtSlot(string actorName, string slotName)
    {
        var prefab = Resources.Load<GameObject>($"CharacterPrefab/{actorName}");
        if (prefab != null && slots.TryGetValue(slotName, out var slot))
        {
            var actorInstance = Instantiate(prefab, slot.position, slot.rotation,this.transform);
            actorInstance.name = actorName; // 去掉 "(Clone)" 后缀
            var actor = actorInstance.GetComponent<Actor>();
            if (actor != null)
            {
                actors.Add(actor);
                actor.InitializeAtSlot(slot);
            }
        }
        else
        {
            Debug.LogError($"Actor prefab with name {actorName} not found or slot with name {slotName} not found.");
        }
    }

    private IEnumerator FadeActor(SpriteRenderer actor, float startAlpha, float endAlpha, float duration)
    {
        float elapsedTime = 0f;
        Color color = actor.color;

        while (elapsedTime < duration)
        {
            elapsedTime += Time.deltaTime;
            float alpha = Mathf.Lerp(startAlpha, endAlpha, elapsedTime / duration);
            actor.color = new Color(color.r, color.g, color.b, alpha);
            yield return null;
        }

        actor.color = new Color(color.r, color.g, color.b, endAlpha);
    }

    private void SetActorAlphaZero(SpriteRenderer actor)
    {
        actor.SetAlpha(0);
    }

    private void Start()
    {
        InitializeSlots();
        HideAllActors();
    }

    private void InitializeSlots()
    {
        foreach (var slot in slotList)
        {
            if (slot != null)
            {
                slots[slot.name] = slot;
            }
        }
    }

    private void HideAllActors()
    {
        foreach (var actor in actors)
        {
            var spriteRenderer = actor.GetComponent<SpriteRenderer>();
            if (spriteRenderer != null)
            {
                spriteRenderer.color = new Color(spriteRenderer.color.r, spriteRenderer.color.g, spriteRenderer.color.b, 0f);
            }
        }
    }
}