using System;
using AibisDream.Framework;
using AibisDream.Utility;
using Yarn.Unity;
using UnityEngine;

namespace AibisDream
{
    public class LineView : DialogueViewBase
    {
        public override void RunLine(LocalizedLine dialogueLine, Action onDialogueLineFinished)
        {
            EnumEventSystem.Global.Send(DialogEventEnum.LineStart, DialogText.GetLine(dialogueLine));

            HandleLineOutput(dialogueLine, onDialogueLineFinished);

            if (DialogController.Instance.quickRunMode)
            {
                // 在快速模式下，延迟更多帧数并重复检查，确保选项有足够时间显示
                StartCoroutine(QuickRunNextStep(onDialogueLineFinished));
            }
        }

        private System.Collections.IEnumerator QuickRunNextStep(Action onDialogueLineFinished)
        {
            // 延迟1帧，给Yarn足够时间检查下一个内容是否为选项
            yield return null;
            
            // 检查1次，现在有了_isProcessingOptions标志，应该足够了
            if (DialogCanvasManager.Instance.HasActiveOptions())
            {
                yield break;
            }
            
            // 再等1帧确保
            yield return null;
            
            // 如果没有选项，则跳过到下一行
            if (!DialogCanvasManager.Instance.HasActiveOptions())
            {
                DialogCanvasManager.Instance.TrySkipLine(true);
                DialogCanvasManager.Instance.NextStep();
            }
        }

        private void HandleLineOutput(LocalizedLine dialogueLine, Action onDialogueLineFinished)
        {
            DialogCanvasManager.Instance.ShowLine(dialogueLine.TextWithoutCharacterName.Text,
                dialogueLine.GetCharacterVo(), onDialogueLineFinished, dialogueLine.TextID, dialogueLine.IsAutoSkipLine());
        }

        public override void RunOptions(DialogueOption[] dialogueOptions, Action<int> onOptionSelected)
        {
            EnumEventSystem.Global.Send(DialogEventEnum.OptionShow);
            
            // 自动暂停快进，选项被选择后再恢复
            bool wasQuickRun = DialogController.Instance.quickRunMode;
            DialogController.Instance.quickRunMode = false;
            
            // 包装原有回调，选项被选择后恢复快进状态
            Action<int> wrappedOnOptionSelected = idx => {
                // 延迟一帧恢复快进状态，确保Yarn流程正确执行
                DialogController.Instance.StartCoroutine(RestoreQuickRunMode(wasQuickRun));
                onOptionSelected(idx);
            };
            
            // 只调用一次ShowOptions，使用包装后的回调
            var options = DialogOption.GeneOptions(dialogueOptions, wrappedOnOptionSelected);
            DialogCanvasManager.Instance.ShowOptions(options);
        }
        
        private System.Collections.IEnumerator RestoreQuickRunMode(bool wasQuickRun)
        {
            yield return null; // 等待一帧
            DialogController.Instance.quickRunMode = wasQuickRun;
        }
    }
}