using System;
using System.Globalization;
using AibisDream.Framework;
using AibisDream.Kit;
using AibisDream.Utility;
using Febucci.UI.Core;
using TMPro;
using UnityEngine;
using UnityEngine.UI;

namespace AibisDream
{
    public class Bubble : MonoBehaviour, IBubble
    {
        private TypewriterCore _typewriter;
        private TMP_Text _actorName;

        private TMP_Text _lineText;
        private LayoutElement _layoutElement;

        private LayoutGroup _layoutGroup;
        private RectTransform _rect;
        private Image _bubbleImage;

        #region 参数

        [Header("参数")]
        [SerializeField] private ActorRole role;
        [SerializeField] private int idx;
        [SerializeField] private int maxWidth;
        [SerializeField] private int minWidth;

        public ActorRole Role => role;
        public int Idx => idx;

        #endregion

        public event Action<Bubble> OnDisposed;
        public event Action OnLineShown;

        public void LoadConfig(BubbleSlotData data)
        {
            InitRefs();

            role = data.actorRole;
            idx = data.idx;
            maxWidth = data.maxWidth;
            minWidth = data.minWidth;
            var rect = transform as RectTransform;
            rect.localPosition = UIManager.GetDialogUIPos(data.slotPosition);
            // 设置style
            SetStyle(data.bubbleStyle, data.pivotType);
            // 注册事件
            _typewriter.onTextShowed.AddListener(InvokeLineShown);
            EnumEventSystem.Global.Register<SettingChangeEvent, string>(SettingChangeEvent.TextSpeed, OnTextSpeedChanged);
        }

        private void InvokeLineShown()
        {
            OnLineShown?.Invoke();
            OnLineShown = null;
        }

        private void SetStyle(BubbleStyle bubbleStyle, PivotType pivotType)
        {
            _bubbleImage.color = bubbleStyle.imageColor;
            // padding内容
            _layoutGroup.padding = bubbleStyle.BubblePadding;
            _lineText.margin = bubbleStyle.linePadding;
            _lineText.fontSize = bubbleStyle.lineFontSize;
            _actorName.margin = bubbleStyle.actorPadding;
            _actorName.fontSize = bubbleStyle.actorFontSize;
            // 是否展示名称
            _actorName.gameObject.SetActive(bubbleStyle.hasActorName);

            // 锚点相关
            _rect.pivot = CommonUtil.GetPivotByType(pivotType);
            var spritePath = bubbleStyle.bubbleSpriteAddress.EndsWith("]")
                ? $"{bubbleStyle.bubbleSpriteAddress}"
                : $"{bubbleStyle.bubbleSpriteAddress}[{pivotType}]";

            _bubbleImage.sprite = ResourceKit.LoadAssetSync<Sprite>(spritePath);

            // 初始化文字速度
            if (Application.isPlaying)
            {
                var speedStr = SettingLoader.Instance.TryRead("TextSpeed", out string textSpeed) ? textSpeed : "1";
                OnTextSpeedChanged(speedStr);
            }
        }

        private void OnTextSpeedChanged(string value)
        {
            float speed = float.TryParse(value, NumberStyles.Float, CultureInfo.InvariantCulture, out float result) ? result : 1f;
            _typewriter.SetTypewriterSpeed(speed);
        }

        private void InitRefs()
        {
            _typewriter = GetComponentInChildren<TypewriterCore>();
            _actorName = transform.Find("名称").GetComponent<TMP_Text>();
            _typewriter.onTextShowed.RemoveAllListeners();
            _typewriter.onTextShowed.AddListener(() => EnumEventSystem.Global.Send(DialogEventEnum.LineShown));
            // 获取内容文字
            _lineText = _typewriter.GetComponent<TMP_Text>();
            _layoutElement = _typewriter.GetComponent<LayoutElement>();
            // 气泡自身
            _layoutGroup = GetComponent<LayoutGroup>();
            _bubbleImage = GetComponent<Image>();
            _rect = _bubbleImage.rectTransform;
        }

        public void ShowActorName(CharacterVo characterVo)
        {
            if (_actorName == null) return;

            _actorName.text = string.IsNullOrEmpty(characterVo.GetActorName())
                ? string.Empty
                : characterVo.GetActorName();
        }

        public void ShowLine(string line)
        {
            _typewriter.TextAnimator.SetText("");
            gameObject.SetActive(true);
            HandleLayout(line);
            _typewriter.ShowText(line);
        }

        public bool SkipLine()
        {
            if (_typewriter.isShowingText)
            {
                _typewriter.SkipTypewriter();
                return true;
            }
            else
            {
                return false;
            }
        }

        public void Hide()
        {
            gameObject.SetActive(false);
        }

        public void Dispose()
        {
            Hide();
            _typewriter.onTextShowed.RemoveAllListeners();
            OnDisposed?.Invoke(this);
            OnDisposed = null;
        }

        private void HandleLayout(string line)
        {
            // 先去除富文本标签
            var width = BubbleGroup.Instance.EstimateTextWidth(line.RemoveRichTextTags(), _lineText.fontSize);
            if (width > maxWidth)
            {
                _layoutElement.preferredWidth = maxWidth;
            }
            else
            {
                _layoutElement.preferredWidth = -1;
            }

            _layoutElement.minWidth = minWidth;

            LayoutRebuilder.ForceRebuildLayoutImmediate(_rect);
        }

#if UNITY_EDITOR
        [Header("测试参数")] public int testMinWidth;
        public int testMaxWidth;
        public BubbleStyle testBubbleStyle;
        public PivotType testPivotType;

        public void LoadStyle()
        {
            InitRefs();
            SetStyle(testBubbleStyle, testPivotType);
            _layoutElement.minWidth = testMinWidth;
            _layoutElement.preferredWidth = testMaxWidth;
        }

        public void SaveStyle()
        {
            if (!testBubbleStyle) return;

            InitRefs();

            testBubbleStyle.linePadding = _lineText.margin;
            testBubbleStyle.lineFontSize = _lineText.fontSize;
            testBubbleStyle.actorPadding = _actorName.margin;
            testBubbleStyle.actorFontSize = _actorName.fontSize;

            testBubbleStyle.BubblePadding = _layoutGroup.padding;

            testBubbleStyle.hasActorName = _actorName.gameObject.activeSelf;
        }
#endif
    }

    public interface IBubble
    {
        public ActorRole Role { get; }
        public int Idx { get; }

        public event Action OnLineShown;
        public void ShowActorName(CharacterVo characterVo);
        public void ShowLine(string line);
        public bool SkipLine();
        public void Hide();
    }
}