import json
from datasets import GeneratorBasedBuilder, DatasetInfo, Features, Value, SplitGenerator, Split

class SourceWorksNanoSet(GeneratorBasedBuilder):
    VERSION = "1.0.0"

    def _info(self):
        return DatasetInfo(
            description="SourceWorks NanoSet Dataset",
            features=Features({
                "prompt": Value("string"),
                "completion": Value("string"),
            }),
            supervised_keys=None,
            homepage="https://srcworks-software.github.io/",
            license="MIT",
        )

    def _split_generators(self, dl_manager):
        data_files = dl_manager.download_and_extract({
            "train": "https://huggingface.co/datasets/srcworks-software/nanoset/resolve/main/nanoset.jsonl"
        })
        return [
            SplitGenerator(
                name=Split.TRAIN,
                gen_kwargs={"filepath": data_files["train"]}
            ),
        ]

    def _generate_examples(self, filepath):
        with open(filepath, encoding="utf-8") as f:
            for idx, line in enumerate(f):
                record = json.loads(line)
                yield idx, record