import time
import os

class Backboard:
    def __init__(self, user_uuid, username, course_id, lesson_id, root_path):
        self.user_uuid = user_uuid
        self.username = username
        self.course_id = course_id
        self.lesson_id = lesson_id
        self.root_path = root_path
        self.create_time = time.time()
        self.enter_chapter_time = time.time()
        self.history = []
        self.file_tree = "[]"
        self.active_file_path = ""
        self.active_file_content = ""
        self.pasted_file_path = ""
        self.pasted_content = ""

 
    def next_chapter(self):
        self.enter_chapter_time = time.time()

    def get_info_prompt(self):

        five_history = ""
        for h in self.history[-5:]:
            five_history += h['type'] + "\n" + h.get('filePath', '') + "\n\n"

        endl = "\n"
        return (f"###Global Info:###{endl}"
        f"Here are some info about now user's IDE, refer to it when you need to handle some code.{endl}"
        f"- User's total study time is {self.get_deltatime_mmss(self.create_time, time.time())}{endl}"
        f"- User's current chapter study time is {self.get_deltatime_mmss(self.enter_chapter_time, time.time())}{endl}"
        f"- Activated file path: {self.active_file_path}{endl}"
        f"```{endl}"
        f"{self.active_file_content[-10:]}{endl}"
        f"```{endl}"
        f"- Last five action:{five_history}{endl}"
        f"- File tree: {self.file_tree}{endl}")
        # f"- Activated file content (current editing 10 lines): {endl}"
    def add_history(self, realtime_action):
        # 检查必要的键是否存在，避免KeyError
        if realtime_action.get('type') == 'config':
            return
        if len(self.history) > 0 and realtime_action.get('type') == 'fileEdit':
            # 安全地获取filePath，并进行比较
            current_file_path = realtime_action.get('filePath')
            # 检查最近的历史记录是否包含filePath
            if current_file_path and self.history[-1].get('filePath') == current_file_path:
                # 安全地更新content，只有当content存在时才更新
                if 'content' in realtime_action:
                    self.history[-1]['content'] = realtime_action['content']
                return
        self.history.append(realtime_action)
        # 限制历史记录的数量
        if len(self.history) > 500:  # 假设最多保留500条记录
            self.history.pop(0)  # 移除最旧的记录


    def get_deltatime_mmss(self, start_time, end_time):
        elapsed_time = end_time - start_time
        hours = int(elapsed_time // 3600)
        minutes = int((elapsed_time % 3600) // 60)
        seconds = int(elapsed_time % 60)
        return f"{hours:02d}:{minutes:02d}:{seconds:02d}"
        

    def get_active_file_reletive_path(self):
        return self.active_file_path
    


class BackBoardManager:
    def __init__(self):
        self.backboards = {} # user_uuid: Backboard
    
    def add_backboard(self, user_uuid, username, course_id, lesson_id, root_path):
        self.backboards[user_uuid] = Backboard(user_uuid,username, course_id, lesson_id, root_path)

    def get_backboard(self, user_uuid) -> Backboard:
        return self.backboards.get(user_uuid, None)