import os, warnings, requests
os.environ["CURL_CA_BUNDLE"] = ''
from dotenv import load_dotenv
from huggingface_hub import configure_http_backend
def backend_factory() -> requests.Session:
    session = requests.Session()
    session.verify = False
    return session

configure_http_backend(backend_factory=backend_factory)

warnings.filterwarnings("ignore")
load_dotenv()
import bm25s
from bm25s.hf import BM25HF
from datasets import load_dataset
unique_specs = set()

dataset_text = load_dataset("OrganizedProgrammers/3GPPSpecContent")
dataset_metadata = load_dataset("OrganizedProgrammers/3GPPSpecMetadata")

dataset_text = dataset_text["train"].to_list()
dataset_metadata = dataset_metadata["train"].to_list()

corpus_json = []

def get_document(spec_id: str, spec_title: str):
    text = [f"{spec_id} - {spec_title}\n"]
    for section in dataset_text:
        if spec_id == section["doc_id"]:
            text.extend([f"{section['section']}\n\n{section['content']}"])
    return text

for specification in dataset_metadata:
    if specification['id'] in unique_specs: continue
    for section in dataset_text:
        if specification['id'] == section['doc_id']:
            corpus_json.append({"text": f"{section['section']}\n{section['content']}", "metadata": {
                "id": specification['id'],
                "title": specification['title'],
                "section_title": section['section'],
                "version": specification['version'],
                "type": specification['type'],
                "working_group": specification['working_group'],
                "url": specification['url'],
                "scope": specification['scope']
            }})
    unique_specs.add(specification['id'])

corpus_text = [doc["text"] for doc in corpus_json]
corpus_tokens = bm25s.tokenize(corpus_text, stopwords="en")

retriever = BM25HF(corpus=corpus_json)
retriever.index(corpus_tokens)

retriever.save_to_hub("OrganizedProgrammers/3GPPBM25IndexSections", token=os.environ.get("HF_TOKEN"))

unique_specs = set()
corpus_json = []

for specification in dataset_metadata:
    if specification['id'] in unique_specs: continue
    text_list = get_document(specification['id'], specification['title'])
    text = "\n".join(text_list)
    if len(text_list) == 1: continue
    corpus_json.append({"text": text, "metadata": specification})
    unique_specs.add(specification['id'])
        
corpus_text = [doc["text"] for doc in corpus_json]
corpus_tokens = bm25s.tokenize(corpus_text, stopwords="en")

retriever = BM25HF(corpus=corpus_json)
retriever.index(corpus_tokens)

retriever.save_to_hub("OrganizedProgrammers/3GPPBM25IndexSingle", token=os.environ.get("HF_TOKEN"))