from io import StringIO
from json import loads as json_parse, dumps as _json_stringify
from typing import Dict, Optional, Any
import paho.mqtt.client as mqtt
from .project import Project
from biopro.device.manager import DeviceManager

def json_stringify(o: Any) -> str:
    return _json_stringify(o, separators=(',', ':'))

class ProjectManager():
    def __init__(self, device_manager: DeviceManager, mqtt_thread=None) :
        self._project_list = []
        self._mqtt_thread =  mqtt_thread
        self._device_manager = device_manager
    
    def create(self, project):
      new_project = Project(project, self._device_manager, self._mqtt_thread)
      self._project_list.append(new_project)
      return new_project

    def remove(self, index):
      self._project_list[index].stop()
      del self._project_list[index]

    def get(self, project_uuid = None):
      if project_uuid == None:
        return self._project_list
      else:
        for project in self._project_list:
          if project.uuid == project_uuid:
            return project

    def run_project(self, project):
      project.start()

    def stop_project(self, project):
      _project = self.get(project)
      _project.stop()