from elasticsearch import Elasticsearch, helpers
import argparse, os, json
import gzip
from tqdm import tqdm

parser = argparse.ArgumentParser()
# required args
parser.add_argument(
    "--data_folder", dest="data_folder", required=False, default="./data"
)
parser.add_argument("--es_user", dest="es_user", required=False, default="elastic")
parser.add_argument("--es_password", dest="es_password", required=True)
parser.add_argument("--es_url", dest="es_url", required=True)
parser.add_argument(
    "--index_name", dest="index_name", required=False, default="search-movies"
)
parser.add_argument(
    "--gzip_file", dest="gzip_file", required=False, default="movies.json.gz"
)

args = parser.parse_args()


def data_generator(file_json, index):
    for doc in file_json:
        filtered_doc = {
            "overview": doc.get("overview"),
            "title": doc.get("title")
        }
        yield {
            "_index": index,
            "_source": doc,
        }


print("Init Elasticsearch client")
es = Elasticsearch(
    hosts=[args.es_url], 
    basic_auth=(args.es_user, args.es_password),
    request_timeout=600,
)

print("Indexing movies data, this might take a while...")
file = gzip.open(args.gzip_file, "r")
json_bytes = file.read()
json_str = json_bytes.decode("utf-8")
file_json = json.loads(json_str)
total_documents = len(file_json)
progress_bar = tqdm(total=total_documents, unit="documents")
success_count = 0


for ok, info in helpers.streaming_bulk(
    client=es,
    actions=data_generator(file_json, args.index_name),
    raise_on_error=False,
):
    if ok:
        success_count += 1
    else:
        print(f"Unable to index {info['index']['_id']}: {info['index']['error']}")
    progress_bar.update(1)
    progress_bar.set_postfix(success=success_count)


progress_bar.close()

# Calculate the success percentage
success_percentage = (success_count / total_documents) * 100
print(f"Indexing completed! Success percentage: {success_percentage}%")
print("Done indexing movies data")