import csv
import os
import pandas as pd
from datasets import GeneratorBasedBuilder, DatasetInfo, SplitGenerator, Split

class WineQuality(GeneratorBasedBuilder):
    VERSION = "1.0.0"

    def _info(self):
        return DatasetInfo(
            description="This is the dataset of Wine Quality, it consists of two parts: red and white"
        )

    def _split_generators(self, dl_manager):
        filepaths = dl_manager.download_and_extract({
            "red": "winequality-red.csv",
            "white": "winequality-white.csv"
        })
        return [
            SplitGenerator(name="red", gen_kwargs={"filepath": filepaths["red"]}),
            SplitGenerator(name="white", gen_kwargs={"filepath": filepaths["white"]}),
        ]

    def _generate_examples(self, filepath):
        df = pd.read_csv(filepath, delimiter=";")
        for id_, row in df.iterrows():
            yield id_, row.to_dict()