# Copyright (c) 2019  PaddlePaddle Authors. All Rights Reserved.
#
# 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.

from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
from paddle_hub.tools.logger import logger
from paddle_hub.commands.base_command import BaseCommand
from paddle_hub.tools import utils
from paddle_hub.tools.downloader import default_downloader
from paddle_hub.module.manager import default_module_manager


class ListCommand(BaseCommand):
    name = "list"

    def __init__(self, name):
        super(ListCommand, self).__init__(name)
        self.show_in_help = True
        self.description = "List all module install in current environment."

    def exec(self, argv):
        all_modules = default_module_manager.all_modules()
        list_text = "\n"
        list_text += "  %-20s\t\t%s\n" % ("ModuleName", "ModulePath")
        list_text += "  %-20s\t\t%s\n" % ("--", "--")
        for module_name, module_dir in all_modules.items():
            list_text += "  %-20s\t\t%s\n" % (module_name, module_dir)
        print(list_text)
        return True


command = ListCommand.instance()