# Copyright (c) 2023 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.

import os
import sys

import paddle

from paddlenlp.utils.log import logger

from .model_base import BenchmarkBase

sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), os.pardir, os.pardir)))
from bigru_crf.data import create_data_loader  # noqa: E402
from bigru_crf.model import BiGruCrf  # noqa: E402


class BiGruCrfBenchmark(BenchmarkBase):
    def __init__(self):
        super().__init__()

    @staticmethod
    def add_args(args, parser):
        parser.add_argument(
            "--base_lr", type=float, default=0.001, help="The basic learning rate that affects the entire network."
        )
        parser.add_argument(
            "--crf_lr", type=float, default=0.2, help="The learning rate ratio that affects CRF layers."
        )
        parser.add_argument("--emb_dim", type=int, default=128, help="The dimension in which a word is embedded.")
        parser.add_argument(
            "--hidden_size", type=int, default=128, help="The number of hidden nodes in the GRU layer."
        )

        return parser

    def create_data_loader(self, args, **kwargs):
        self.word_vocab, self.label_vocab, train_loader, test_loader = create_data_loader(args)

        self.num_batch = len(train_loader)

        return train_loader, test_loader

    def build_model(self, args, **kwargs):
        model = BiGruCrf(
            args.emb_dim, args.hidden_size, len(self.word_vocab), len(self.label_vocab), crf_lr=args.crf_lr
        )

        return model

    def forward(self, model, args, input_data=None, **kwargs):
        (token_ids, length, label_ids) = input_data
        loss = model(token_ids, length, label_ids)
        avg_loss = paddle.mean(loss)

        return avg_loss, args.batch_size

    def logger(
        self,
        args,
        step_id=None,
        pass_id=None,
        batch_id=None,
        loss=None,
        batch_cost=None,
        reader_cost=None,
        num_samples=None,
        ips=None,
        **kwargs
    ):
        logger.info(
            "global step %d / %d, loss: %f, avg_reader_cost: %.5f sec, avg_batch_cost: %.5f sec, avg_samples: %.5f, ips: %.5f sequences/sec"
            % (step_id, args.epoch * self.num_batch, loss, reader_cost, batch_cost, num_samples, ips)
        )
