# coding=utf-8
# Copyright 2020 The HuggingFace Datasets Authors and the current dataset script contributor.
#
# 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.


# this file is here for backward compatibility (e.g. for lm-evaluation-harness), when this dataset used to be named "hendrycks_test"

import json
import datasets


_CITATION = """

"""

_DESCRIPTION = """

"""

_HOMEPAGE = """
"""

_URL = """
"""

_LICENSE = """

"""

_DATASETS = [
    'ConvFinQA',
    'FinanceBench',
    'FinDER',
    'FinQA',
    'FinQABench',
    'MultiHeirtt',
    'TATQA',
]

_SPLITS = ["corpus", "queries"]

_URLs = {dataset: f"{dataset}/" for dataset in _DATASETS for subset in _SPLITS}

class FinanceRAG(datasets.GeneratorBasedBuilder):

    BUILDER_CONFIGS = [
        datasets.BuilderConfig(
            name=f"{dataset}",
            version=datasets.Version("1.0.0"),
            description=f"{dataset} dataset."
        )
        for dataset in _DATASETS
    ]
    
    def _info(self):
        features = datasets.Features(
            {
                "_id": datasets.Value("string"),
                "title": datasets.Value("string"),
                "text": datasets.Value("string"),
            }
        )
        return datasets.DatasetInfo(
            description=_DESCRIPTION,
            features=features,
            homepage=_HOMEPAGE,
            citation=_CITATION,
            license=_LICENSE,
            supervised_keys=None,
        )

    def _split_generators(self, dl_manager):
        """Returns SplitGenerators."""

        my_urls = _URLs[self.config.name]
        data_dir = dl_manager.download_and_extract(my_urls)

        return [
            datasets.SplitGenerator(
                name=datasets.Split.TEST,
                gen_kwargs={"filepath": data_dir + f"{split}.jsonl.gz"}
            ) for split in _SPLITS
        ]

    # Copied from BeIR.
    def _generate_examples(self, filepath):
        with open(filepath, encoding="utf-8") as f:
            texts = f.readlines()
        for i, text in enumerate(texts):
            text = json.loads(text)
            if 'metadata' in text: del text['metadata']
            if "title" not in text: text["title"] = ""
            yield i, text