import json
import os
from typing import Dict, Any

class SettingsManager:
    def __init__(self, settings_file: str = "settings.json"):
        self.settings_file = settings_file

    def load_settings(self) -> Dict[str, Any]:
        try:
            with open(self.settings_file, "r") as f:
                return json.load(f)
        except FileNotFoundError:
            return {}

    def save_settings(self, settings: Dict[str, Any]) -> None:
        with open(self.settings_file, "w") as f:
            json.dump(settings, f, indent=2)

    def update_color(self, bar_id: str, color: str) -> None:
        settings = self.load_settings()
        if bar_id in settings:
            settings[bar_id]["color"] = color
            self.save_settings(settings)

    def update_position(self, bar_id: str, x: int, y: int) -> None:
        settings = self.load_settings()
        if bar_id in settings:
            settings[bar_id]["x"] = x
            settings[bar_id]["y"] = y
            self.save_settings(settings)

    def create_bar(self, bar_id: str, url: str, color: str, x: int, y: int) -> None:
        settings = self.load_settings()
        settings[bar_id] = {
            "url": url,
            "color": color,
            "x": x,
            "y": y
        }
        self.save_settings(settings)

    def delete_bar(self, bar_id: str) -> None:
        settings = self.load_settings()
        if bar_id in settings:
            del settings[bar_id]
            self.save_settings(settings)

    def bar_exists(self, bar_id: str) -> bool:
        settings = self.load_settings()
        return bar_id in settings