text: # -*- coding: utf-8 -*-
  # ------------------------------------------------------------------------------
  #
  #   Copyright 2018-2020 Fetch.AI Limited
  #
  #   Licensed under the Apache License, Version 2.0 (the "License");
  #   you may not use this file except in compliance with the License.
  #   You may obtain a copy of the License at
  #
  #       http://www.apache.org/licenses/LICENSE-2.0
  #
  #   Unless required by applicable law or agreed to in writing, software
  #   distributed under the License is distributed on an "AS IS" BASIS,
  #   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  #   See the License for the specific language governing permissions and
  #   limitations under the License.
  #
  # ------------------------------------------------------------------------------
  
  """A module with context tools of the aea cli."""
  
  from pathlib import Path
  from typing import Dict, List, cast
  
  from aea.cli.utils.loggers import logger
  from aea.configurations.base import (
      AgentConfig,
      Dependencies,
      PackageType,
      PublicId,
      _get_default_configuration_file_name_from_type,
  )
  from aea.configurations.loader import ConfigLoader
  
  
  class Context:
      """A class to keep configuration of the cli tool."""
  
      agent_config: AgentConfig
  
      def __init__(self, cwd: str = ".", verbosity: str = "INFO"):
          """Init the context."""
          self.config = dict()  # type: Dict
          self.cwd = cwd
          self.verbosity = verbosity
          self.clean_paths: List = []
  
      @property
      def agent_loader(self) -> ConfigLoader:
          """Get the agent loader."""
          return ConfigLoader.from_configuration_type(PackageType.AGENT)
  
      @property
      def protocol_loader(self) -> ConfigLoader:
          """Get the protocol loader."""
          return ConfigLoader.from_configuration_type(PackageType.PROTOCOL)
  
      @property
      def connection_loader(self) -> ConfigLoader:
          """Get the connection loader."""
          return ConfigLoader.from_configuration_type(PackageType.CONNECTION)
  
      @property
      def skill_loader(self) -> ConfigLoader:
          """Get the skill loader."""
          return ConfigLoader.from_configuration_type(PackageType.SKILL)
  
      @property
      def contract_loader(self) -> ConfigLoader:
          """Get the contract loader."""
          return ConfigLoader.from_configuration_type(PackageType.CONTRACT)
  
      def set_config(self, key, value) -> None:
          """
          Set a config.
  
          :param key: the key for the configuration.
          :param value: the value associated with the key.
          :return: None
          """
          self.config[key] = value
          logger.debug("  config[{}] = {}".format(key, value))
  
      @staticmethod
      def _get_item_dependencies(item_type, public_id: PublicId) -> Dependencies:
          """Get the dependencies from item type and public id."""
          item_type_plural = item_type + "s"
          default_config_file_name = _get_default_configuration_file_name_from_type(
              item_type
          )
          path = Path(
              "vendor",
              public_id.author,
              item_type_plural,
              public_id.name,
              default_config_file_name,
          )
          if not path.exists():
              path = Path(item_type_plural, public_id.name, default_config_file_name)
          config_loader = ConfigLoader.from_configuration_type(item_type)
          config = config_loader.load(path.open())
          deps = cast(Dependencies, config.dependencies)
          return deps
  
      def get_dependencies(self) -> Dependencies:
          """Aggregate the dependencies from every component.
  
          :return a list of dependency version specification. e.g. ["gym >= 1.0.0"]
          """
          dependencies = {}  # type: Dependencies
          for protocol_id in self.agent_config.protocols:
              dependencies.update(self._get_item_dependencies("protocol", protocol_id))
  
          for connection_id in self.agent_config.connections:
              dependencies.update(
                  self._get_item_dependencies("connection", connection_id)
              )
  
          for skill_id in self.agent_config.skills:
              dependencies.update(self._get_item_dependencies("skill", skill_id))
  
          for contract_id in self.agent_config.contracts:
              dependencies.update(self._get_item_dependencies("contract", contract_id))
  
          return dependencies
  