import os
import json
import pandas as pd
from glob import glob
from tqdm import tqdm
import time
from utils.logger import logger
from utils.pdf_download import download_pdf_from_documents_warehouse
from utils.sql_query_util import query_document_fund_mapping
from core.page_filter import FilterPages


class EMEA_AR_Parsing:
    def __init__(self, doc_id: str, pdf_folder: str = r"/data/emea_ar/pdf/") -> None:
        self.doc_id = doc_id
        self.pdf_folder = pdf_folder
        os.makedirs(self.pdf_folder, exist_ok=True)
        self.pdf_file = self.download_pdf()
        self.document_mapping_info_df = query_document_fund_mapping(doc_id)
        self.datapoint_page_info = self.get_datapoint_page_info()

    def download_pdf(self) -> str:
        pdf_file = download_pdf_from_documents_warehouse(self.pdf_folder, self.doc_id)
        return pdf_file

    def get_datapoint_page_info(self) -> dict:
        filter_pages = FilterPages(
            self.doc_id, self.pdf_file, self.document_mapping_info_df
        )
        datapoint_page_info = filter_pages.start_job()
        return datapoint_page_info


def filter_pages(doc_id: str, pdf_folder: str) -> None:
    logger.info(f"Parsing EMEA AR for doc_id: {doc_id}")
    emea_ar_parsing = EMEA_AR_Parsing(doc_id, pdf_folder)
    return emea_ar_parsing.datapoint_page_info


def batch_filter_pdf_files(pdf_folder: str, output_folder: str) -> None:
    pdf_files = glob(pdf_folder + "*.pdf")
    result_list = []
    for pdf_file in tqdm(pdf_files):
        pdf_base_name = os.path.basename(pdf_file)
        doc_id = pdf_base_name.split(".")[0]
        datapoint_page_info = filter_pages(doc_id=doc_id, pdf_folder=pdf_folder)
        result_list.append(datapoint_page_info)
    result_df = pd.DataFrame(result_list)
    result_df.reset_index(drop=True, inplace=True)

    logger.info(f"Saving the result to {output_folder}")
    os.makedirs(output_folder, exist_ok=True)
    time_stamp = time.strftime("%Y%m%d%H%M%S", time.localtime())
    output_file = os.path.join(
        output_folder,
        f"datapoint_page_info_{len(result_df)}_documents_{time_stamp}.xlsx",
    )
    with pd.ExcelWriter(output_file) as writer:
        result_df.to_excel(writer, index=False)


if __name__ == "__main__":
    pdf_folder = r"/data/emea_ar/small_pdf/"
    output_folder = r"/data/emea_ar/output/filter_pages/"
    batch_filter_pdf_files(pdf_folder, output_folder)