#
#  Copyright 2019 The FATE 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.
#

import argparse

from pipeline.backend.pipeline import PipeLine
from pipeline.component import DataTransform
from pipeline.component import HomoOneHotEncoder
from pipeline.component import Reader
from pipeline.interface import Data
from pipeline.interface import Model
from pipeline.utils.tools import load_job_config
import json


def main(config="../../config.yaml", namespace=""):
    # obtain config
    if isinstance(config, str):
        config = load_job_config(config)
    parties = config.parties
    guest = parties.guest[0]
    host = parties.host[0]
    arbiter = parties.arbiter[0]

    guest_train_data = {"name": "mock_string", "namespace": f"experiment{namespace}"}
    host_train_data = {"name": "mock_string", "namespace": f"experiment{namespace}"}

    guest_eval_data = {"name": "mock_string", "namespace": f"experiment{namespace}"}
    host_eval_data = {"name": "mock_string", "namespace": f"experiment{namespace}"}

    # initialize pipeline
    pipeline = PipeLine()
    # set job initiator
    pipeline.set_initiator(role='guest', party_id=guest)
    # set participants information
    pipeline.set_roles(guest=guest, host=host, arbiter=arbiter)

    # define Reader components to read in data
    reader_0 = Reader(name="reader_0")
    # configure Reader for guest
    reader_0.get_party_instance(role='guest', party_id=guest).component_param(table=guest_train_data)
    # configure Reader for host
    reader_0.get_party_instance(role='host', party_id=host).component_param(table=host_train_data)

    reader_1 = Reader(name="reader_1")
    reader_1.get_party_instance(role='guest', party_id=guest).component_param(table=guest_eval_data)
    reader_1.get_party_instance(role='host', party_id=host).component_param(table=host_eval_data)

    # define DataTransform components
    data_transform_0 = DataTransform(name="data_transform_0", with_label=True, output_format="dense", label_name='y',
                                     data_type="str")  # start component numbering at 0
    data_transform_1 = DataTransform(name="data_transform_1")

    homo_onehot_param = {
        "transform_col_indexes": [1, 2, 5, 6, 8, 10, 11, 12],
        "transform_col_names": [],
        "need_alignment": True
    }

    homo_onehot_0 = HomoOneHotEncoder(name='homo_onehot_0', **homo_onehot_param)
    homo_onehot_1 = HomoOneHotEncoder(name='homo_onehot_1')

    # add components to pipeline, in order of task execution
    pipeline.add_component(reader_0)
    pipeline.add_component(reader_1)
    pipeline.add_component(data_transform_0, data=Data(data=reader_0.output.data))
    # set data_transform_1 to replicate model from data_transform_0
    pipeline.add_component(
        data_transform_1, data=Data(
            data=reader_1.output.data), model=Model(
            data_transform_0.output.model))

    pipeline.add_component(homo_onehot_0, data=Data(data=data_transform_0.output.data))
    pipeline.add_component(homo_onehot_1, data=Data(data=data_transform_1.output.data),
                           model=Model(homo_onehot_0.output.model))
    pipeline.compile()

    # fit model
    pipeline.fit()
    # query component summary


if __name__ == "__main__":
    parser = argparse.ArgumentParser("PIPELINE DEMO")
    parser.add_argument("-config", type=str,
                        help="config file")
    args = parser.parse_args()
    if args.config is not None:
        main(args.config)
    else:
        main()