# -*- coding: utf-8 -*-
import click
import logging
from pathlib import Path
from dotenv import find_dotenv, load_dotenv
import pandas as pd
import ast
import os

@click.command()
@click.argument('input_filepath', type=click.Path(exists=True))
@click.argument('output_filepath', type=click.Path())
def main(input_filepath, output_filepath):
    """ Runs data processing scripts to turn raw data from (../raw) into
        cleaned data ready to be analyzed (saved in ../processed).
    """
    logger = logging.getLogger(__name__)
    logger.info('Making final data set from raw data')
    logger.info('Loading the zipped dataset')
    df = pd.read_csv(os.path.join(input_filepath, 'initial_info_whole_20210322.tsv.gz'), compression='gzip', sep='\t', header=0,
                         names=['orcid', 'claimed','verified_email', 'verified_primary_email', 
                                  'given_names', 'family_name', 'biography', 'other_names', 'urls', 
                                  'primary_email', 'other_emails', 'keywords', 'external_ids', 'education', 
                                  'employment', 'n_works', 'works_source', 'activation_date', 'last_update_date',
                                   'n_doi', 'n_arxiv', 'n_pmc', 'n_other_pids'], encoding = 'utf-8')
    
    logger.info('Loading list columns')
    logger.info('... other_names')
    df['other_names'] = df[df.other_names.notna()]['other_names'].apply(lambda x: ast.literal_eval(x))
    
    logger.info('... keywords')
    df['keywords'] = df[df.keywords.notna()]['keywords'].apply(lambda x: ast.literal_eval(x))
    
    logger.info('... urls')
    df['urls'] = df[df.urls.notna()]['urls'].apply(lambda x: ast.literal_eval(x))
    
    logger.info('... other_emails')
    df['other_emails'] = df[df.other_emails.notna()]['other_emails'].apply(lambda x: ast.literal_eval(x))
    
    logger.info('... education')
    df['education'] = df[df.education.notna()]['education'].apply(lambda x: ast.literal_eval(x))
    
    logger.info('... employment')
    df['employment'] = df[df.employment.notna()]['employment'].apply(lambda x: ast.literal_eval(x))
    
    logger.info('... external_ids')    
    df['external_ids'] = df[df.external_ids.notna()]['external_ids'].apply(lambda x: ast.literal_eval(x))
    
    logger.info('... works_source')
    df['works_source'] = df[df.works_source.notna()]['works_source'].apply(lambda x: ast.literal_eval(x))
    
    logger.info('Integrating labels from ORCID found in OpenAIRE')
    openaire_orcid = pd.read_csv(os.path.join(input_filepath, 'orcid_openaire.txt'), header=None, names=['orcid'])
    df['label'] = df.orcid.isin(openaire_orcid['orcid'])
    df['label'] = df['label'].astype(int)
    
    logger.info('Serializing the dataset in ../processed')
    df.to_pickle(os.path.join(output_filepath, 'dataset.pkl'))
    
    logger.info('DONE!')

if __name__ == '__main__':
    log_fmt = '%(asctime)s - %(name)s - %(levelname)s - %(message)s'
    logging.basicConfig(level=logging.INFO, format=log_fmt)

    # not used in this stub but often useful for finding various files
    project_dir = Path(__file__).resolve().parents[2]

    # find .env automagically by walking up directories until it's found, then
    # load up the .env entries as environment variables
    load_dotenv(find_dotenv())

    main()