import os
import sys
import json
import re
import logging

# Set /home/lasse/riksdagen as working directory
os.chdir("/home/lasse/riksdagen")
# Add the project root to Python path to locate local modules
sys.path.append("/home/lasse/riksdagen")
from arango_client import arango

logging.basicConfig(level=logging.WARNING, format="%(asctime)s - %(levelname)s - %(message)s")



def clean_text(text: str) -> str:
    """Cleans text by removing unwanted characters and extra spaces."""
    if text is None:
        return ""
    text = text.replace("<br>", "\n").replace("<br/>", "\n").replace("<br />", "\n")
    text = text.replace("</p>", "\n")
    # Replace multiple newlines with a single newline
    text = re.sub(r"\n+", "\n", text)
    text = text.strip()
    # Remove HTML tags if any
    text = re.sub(r"<.*?>", "", text)
    return text


def clean_speaker_name(name):
    if name is None:
        return ""
    # Remove parentheses if at the and and the content inside
    name = name.strip()
    name = re.sub(r"\s*\(.*?\)\s*$", "", name)
    return name.strip()




def insert_documents_to_arango(docs: list[dict]):
    for i in range(0, len(docs), 100):
        batch = docs[i : i + 100]
        arango_collection.insert_many(batch, overwrite=True)


def process_folder(folder_path: str, already_processed: set[str] = {}) -> list[dict]:
    files_in_folder = os.listdir(folder_path)
    docs = []
    for file in files_in_folder:
        if file.endswith(".json"):
            try:
                with open(os.path.join(folder_path, file), "r", encoding="utf-8-sig") as f:
                    data = json.load(f)
                doc = data["anforande"]
                if doc['anforande_id'] in already_processed:
                    continue
                doc["period"] = int(doc.get("dok_rm", "0000")[:4])
                doc.pop("dok_rm", None)
                doc["anforandetext"] = clean_text(doc.get("anforandetext", ""))
                doc["talare"] = clean_speaker_name(doc.get("talare", ""))
                doc["_key"] = doc.get("anforande_id", "")
                doc.pop("anforande_id", None)
                doc["datum"] = doc.get("dok_datum", "").split(' ')[0]
                doc["titel"] = doc.get("dok_titel", "")
                doc.pop("dok_titel", None)
                doc["anforande_nummer"] = int(doc.get("anforande_nummer"))
                doc["hangar_id"] = doc.get("dok_hangar_id", "")
                doc.pop("dok_hangar_id", None)
                doc["id"] = doc.get("dok_id", "")
                doc.pop("dok_id", None)
                doc.pop("underrubrik", None)
                doc["replik"] = doc.get("replik", "N") == "Y"
                doc.pop("systemdatum", None)
                docs.append(data["anforande"])
            except json.JSONDecodeError:
                logging.warning(f"Skipping invalid JSON file: {file}")
            except KeyError as e:
                logging.warning(f"Missing expected key {e} in file: {file}")
    return docs


def update_folder(path: str, already_processed: set[str] = None) -> int:
    """Updates the ArangoDB collection with documents from the specified folder.
    Args:
        path (str): The path to the folder containing JSON files.
        already_processed (set[str], optional): A set of already processed document keys to avoid duplicates.
            If None, it will fetch existing keys from the database. Defaults to None.
    """
    if already_processed is None:
        already_processed = set()
        cursor = arango.db.aql.execute(
            """
            FOR doc IN talks
                RETURN doc._key
            """
        )
        for doc_key in cursor:
            already_processed.add(doc_key)

    folder_docs = process_folder(path, already_processed)
    insert_documents_to_arango(folder_docs)
    return len(folder_docs)

# Update all folders in talks directory
if __name__ == "__main__":
    already_processed = set()
    cursor = arango.db.aql.execute(
        """
        FOR doc IN talks
            RETURN doc._key
        """
    )
    for doc_key in cursor:
        already_processed.add(doc_key)
    arango_collection = arango.db.collection("talks")
    folders_in_talks = os.listdir("talks")
    for folder in folders_in_talks:
        path = f"/home/lasse/riksdagen/talks/{folder}"
        if os.path.isdir(path):
            print(f"Processing folder: {folder}")
            num_docs = update_folder(path, already_processed)
            print(f"Inserted/Updated {num_docs} documents from folder {folder}")


# Documents look like this:

# {'anforande_id': '7f96d4d6-ccd6-ec11-9170-0090facf175a',
#  'anforande_nummer': '112',
#  'anforandetext': '<p>Fru talman! Tack, Camilla Waltersson Grönvall, för ditt '
#                   'tycker inte att jag fick något tillräckligt bra svar på '
#                   'det, fru talman.</p>',
#  'avsnittsrubrik': 'Stöd till personer med funktionsnedsättning',
#  'dok_datum': '2022-03-16 00:00:00',
#  'dok_hangar_id': '5124227',
#  'dok_id': 'H90982',
#  'dok_nummer': '82',
#  'dok_rm': '2021/22',
#  'dok_titel': 'Protokoll 2021/22:82 Onsdagen den 16 mars',
#  'intressent_id': '0554852839719',
#  'kammaraktivitet': 'ärendedebatt',
#  'parti': 'S',
#  'rel_dok_id': 'H901SoU12',
#  'replik': 'Y',
#  'systemdatum': '2022-05-18 19:06:57',
#  'talare': 'Mikael Dahlqvist (S)',
#  'underrubrik': ''}
#  'underrubrik': ''}