using Gameplay;
using PhxhSDK.Res;
using System.Collections.Generic;
using Cysharp.Threading.Tasks;
using UnityEngine;
using Button = UnityEngine.UI.Button;
using Framework;

public class UI_CampController : UIWindow
{
    /// <summary>
    /// 返回按钮
    /// </summary>
    private Button buttonBack;
    /// <summary>
    /// 主页按钮
    /// </summary>
    private Button buttonHome;
    /// <summary>
    /// 技能树按钮
    /// </summary>
    private Button buttonSkill;
    /// <summary>
    /// 切换上一个相机点位
    /// </summary>
    private Button buttonLastCamera;
    /// <summary>
    /// 切换下一个相机点位
    /// </summary>
    private Button buttonNextCamera;

    /// <summary>
    /// 相机点位
    /// </summary>
    private readonly List<CameraStand> listCameraStand = new();
    private CameraRoot cameraRoot;
    /// <summary>
    /// 当前相机点位索引
    /// </summary>
    private int curCameraIndex;

    public override void OnInit()
    {
        buttonBack = GetComponent<Button>("Button_Back/Button_back");
        buttonHome = GetComponent<Button>("Button_Back/Button_Home");
        buttonSkill = GetComponent<Button>("Button_Skill");
        buttonLastCamera = GetComponent<Button>("Button_Left");
        buttonNextCamera = GetComponent<Button>("Button_Right");

        AudioManager.Instance.PlayAudio(Constants.Sound.CAMP_BGM, AudioCriManager.EPlayType.Music);

        BindButton(buttonBack, OnClickBack);
        BindButton(buttonHome, OnClickBack);
        BindButton(buttonSkill, OnSkill);
        BindButton(buttonLastCamera, OnLastCamera);
        BindButton(buttonNextCamera, OnNextCamera);
    }

    public override async UniTask<bool> OnBack(object data = null)
    {
        return false;
    }
    
    protected override void OnShowWindow(object data = null)
    {
        base.OnShowWindow(data);

        SceneHandle sceneHandle = GameSceneHelper.Instance.GetCurrentUIViewScene();
        if (sceneHandle == null)
        {
            DebugUtil.LogError("未获取到营地场景");
            return;
        }

        GameObject[] gos = sceneHandle.Scene.GetRootGameObjects(); // TODO 临时获取方法
        foreach (GameObject go in gos)
        {
            if (go.name.Equals("CameraStands"))
            {
                listCameraStand.AddRange(go.GetComponentsInChildren<CameraStand>());
                continue;
            }

            if (go.name.Equals("CameraRoot"))
                cameraRoot = go.GetComponent<CameraRoot>();
        }

        if (listCameraStand.Count <= 0)
        {
            DebugUtil.LogError("未获取到相机点位");
            return;
        }

        ApplyCameraPoint(0);
    }

    private void ApplyCameraPoint(int index)
    {
        curCameraIndex = index;

        listCameraStand[curCameraIndex].Apply(cameraRoot.Camera);
    }

    #region 回调
    /// <summary>
    /// 点击退出
    /// </summary>
    private async void OnClickBack()
    {
        await CommonUtils.CloseUIWithScene(UINameConst.UI_Camp);
        GameStateManager.Instance.ChangeState(new GameStateMainScene());
    }

    /// <summary>
    /// 技能养成
    /// </summary>
    private async void OnSkill()
    {
        await UI_CommandSkillCultivateController.Open();
    }

    /// <summary>
    /// 切换上一个相机
    /// </summary>
    private void OnLastCamera()
    {
        if (listCameraStand.Count <= 0)
            return;

        if (curCameraIndex > 0)
            ApplyCameraPoint(curCameraIndex - 1);
        else
            ApplyCameraPoint(listCameraStand.Count - 1);
    }

    /// <summary>
    /// 切换下一个相机
    /// </summary>
    private void OnNextCamera()
    {
        if (listCameraStand.Count <= 0)
            return;

        ApplyCameraPoint((curCameraIndex + 1) % listCameraStand.Count);
    }
    #endregion
}