using System;
using System.Collections;
using System.Collections.Generic;
using Ichni.RhythmGame;
using Ichni.RhythmGame.Beatmap;
using UnityEngine;
using UnityEngine.Serialization;

namespace Ichni.Editor
{
    public class SceneCamera : MonoBehaviour, IBaseElement
    {
        [FormerlySerializedAs("camera")] public Camera sceneCamera;

        public GameCamera.CameraViewType viewType;
        public float perspectiveAngle;
        public float orthographicSize;

        public BaseElement_BM matchedBM { get; set; }

        [HideInInspector]
        public Vector3 cameraPosition; //注意，这里的Position和EulerAngles，是transform的中介变量，仅能用于Inspector显示！
        [HideInInspector]
        public Vector3 cameraEulerAngles;

        public void SetUpInspector()
        {
            IHaveInspection inspector = EditorManager.instance.uiManager.inspector;
            var container = inspector.GenerateContainer("Scene Camera");
            
            //摄像机参数设置
            var cameraSettings = container.GenerateSubcontainer(3);
            var viewTypeDropdown = 
                inspector.GenerateDropdown(this, cameraSettings, "View Type", typeof(GameCamera.CameraViewType), nameof(viewType))
                    .AddListenerFunction(() => sceneCamera.orthographic = viewType == GameCamera.CameraViewType.Orthographic);
            var perspectiveAngleField = 
                inspector.GenerateInputField(this, cameraSettings, "Perspective Angle", nameof(perspectiveAngle))
                    .AddListenerFunction(() => sceneCamera.fieldOfView = perspectiveAngle);
            var orthographicSizeField = 
                inspector.GenerateInputField(this, cameraSettings, "Orthographic Size", nameof(orthographicSize))
                    .AddListenerFunction(() => sceneCamera.orthographicSize = orthographicSize);

            //摄像机位置与旋转设置
            var transformSettings = container.GenerateSubcontainer(1);
            var positionInputFields =
                inspector.GenerateVector3InputField(this, transformSettings, "Position", nameof(cameraPosition), true)
                    .AddListenerFunction(() => sceneCamera.transform.position = cameraPosition);
            var eulerAnglesInputFields = 
                inspector.GenerateVector3InputField(this, transformSettings, "Euler Angles", nameof(cameraEulerAngles), true)
                    .AddListenerFunction(() => sceneCamera.transform.eulerAngles = cameraEulerAngles);
        }

        private void Update()
        {
            cameraPosition = sceneCamera.transform.position;
            cameraEulerAngles = sceneCamera.transform.eulerAngles;
        }
    }
}