using System;
using System.Collections.Generic;
using System.Linq;
using AibisDream.Framework;
using AibisDream.Kit;
using AibisDream.Utility;
using UnityEngine;

namespace AibisDream
{
    public class TextBubbleGroup : MonoBehaviour, IDialogView
    {
        private Dictionary<ActorRole, TextBubble[]> _bubbleDict;

        #region 一些索引

        private bool _skipLineDelay;
        private Action _nextStep;
        private bool _isAutoSkip;

        private TextBubble _curBubble;

        [Header("跳过阻塞延迟时间/ms")] [SerializeField]
        private int delayTime = 300;

        #endregion

        #region 初始化

        private void Awake()
        {
            InitBubbles();
            // 注册泡泡
            DialogCanvasManager.Instance.RegisterDialogView(DialogViewType.Bubble, this);
            DialogCanvasManager.Instance.SwitchDialogView(DialogViewType.Bubble);
        }

        private void Start()
        {
            HideDialog();
        }

        private void OnDestroy()
        {
            DialogCanvasManager.Instance.SwitchDialogView(DialogViewType.OldBox);
            DialogCanvasManager.Instance.UnregisterDialogView(DialogViewType.Bubble);
        }

        private void InitBubbles()
        {
            _bubbleDict = GetComponentsInChildren<TextBubble>().GroupBy(item => item.role)
                .ToDictionary(group => group.Key, group => group.ToArray());
        }

        #endregion

        public void ShowLine(string dialogLine, CharacterVo character, Action nextStep, bool isAutoSkip = false)
        {
            gameObject.SetActive(true);
            
            if (TryGetBubble(character.role, character.bubbleIdx ,out var bubble))
            {
                bubble.ShowLine(dialogLine, OnTextShowed);
                // 设置延时
                _skipLineDelay = true;
                _ = CommonUtil.Delay(delayTime, () => { _skipLineDelay = false; });
                // 将非选定的Bubble隐藏
                HideDialog(bubble);
            }
            else
            {
                Debug.LogWarning($"{character.GetActorName()}的Role没有对应Bubble");
                return;
            }

            // 保留信息
            _nextStep = nextStep;
            _isAutoSkip = isAutoSkip;
            _curBubble = bubble;
        }

        public void ShowOptions(DialogOption[] dialogueOptions)
        {
            // 没有选项
        }

        public void HideDialog()
        {
            foreach (var textBubble in _bubbleDict.Values.SelectMany(inner => inner))
            {
                textBubble.Hide();
            }
        }

        public void HideDialog(TextBubble activeBubble)
        {
            foreach (var textBubble in _bubbleDict.Values.SelectMany(inner => inner))
            {
                if (activeBubble != textBubble)
                {
                    textBubble.Hide();
                }
            }
        }

        public bool TrySkipLine(bool isForceSkip)
        {
            if (_skipLineDelay && !isForceSkip)
            {
                return true;
            }

            if (_curBubble.IsShowingText)
            {
                _curBubble.SkipLine();
                return true;
            }

            return false;
        }

        public void NextStep()
        {
            if (_nextStep == null) return;

            EnumEventSystem.Global.Send(DialogEventEnum.LineEnd);
            var next = _nextStep;
            _nextStep = null;

            _curBubble?.Hide();

            next?.Invoke();
        }

        private void OnTextShowed()
        {
            // 触发事件
            EnumEventSystem.Global.Send(DialogEventEnum.LineShown);

            // 执行自动跳过结局
            if (_isAutoSkip)
            {
                _ = CommonUtil.Delay(200, NextStep);
                _isAutoSkip = false;
            }
        }

        private bool TryGetBubble(ActorRole role, int idx, out TextBubble textBubble)
        {
            if (_bubbleDict.TryGetValue(role, out var bubbles))
            {
                textBubble = bubbles.FirstOrDefault(item => item.idx == idx);
                return textBubble != null;
            }

            textBubble = null;
            return false;
        }
    }
}