from datetime import datetime
from process_data import prepare_dataset
from datasets import load_dataset

from collect_data_wikidata_ent import collect_wikidata_entity
from collect_data_wikidata_prop import collect_wikidata
from collect_data_wikinews import collect_wikinews
from collect_data_wikiquote import collect_wikiquote
from collect_data_es import collect_es
from collect_data_gr import collect_gr

def normalize_outcome(o):
    lowered = o.lower()
    if 'διαγρ' in lowered:
        return 'Διαγραφή'
    elif 'διατήρη' in lowered or 'παραμονή' in lowered:
        return 'Διατήρηση'
    elif 'συγχών' in lowered:
        return 'συγχώνευση'
    else:
        return 'Δεν υπάρχει συναίνεση'

def collect(mode, start_date=None, end_date=None, url=None, title=None, output_path=None,
            platform=None, lang=None, date=None, years=None):
    if mode not in ['date_range', 'date', 'title','url','wide_2023']:
        raise ValueError("Invalid mode. Choose from ['date_range', 'date', 'title','url','wide_2023']")

    if mode == 'wide_2023':
        dataset = load_dataset('hsuvaskakoty/wide_analysis')
        print('Dataset loaded successfully as huggingface dataset')
        print('The dataset has the following columns:', dataset.column_names)
        return dataset
    underlying_mode = mode
    if mode in ['date', 'date_range']:
        underlying_mode = 'year'
    if mode == 'url':
        underlying_mode = 'url'
    if (platform is None and lang is None) or (platform=='wikipedia' and lang=='en'):
        if mode in ['date_range', 'date', 'title']:
            return prepare_dataset(
                mode=mode,
                start_date=start_date,
                end_date=end_date,
                url=url,
                title=title,
                output_path=output_path
            )
        else:
            print("Invalid input. Choose from ['date_range', 'date', 'title','wide_2023']")
            return None

    if platform == 'wikidata_entity':
            if underlying_mode == 'title':
                if not title or (years and len(years)>0):
                    raise ValueError("For 'title' mode in wikidata entity, 'title' must be provided and 'years' must be empty.")
                return collect_wikidata_entity(mode='title', title=title, years=[])

            elif underlying_mode == 'year':
                if start_date and end_date:
                    start_year = int(datetime.strptime(start_date, "%Y-%m-%d").year)
                    end_year = int(datetime.strptime(end_date, "%Y-%m-%d").year)
                    return collect_wikidata_entity(mode='year', years=[start_year, end_year])
                elif start_date:
                    single_year = int(datetime.strptime(start_date, "%Y-%m-%d").year)
                    return collect_wikidata_entity(mode='year', years=single_year)
                else:
                    raise ValueError("For 'year' mode in wikidata entity, start_date (and optionally end_date) is required.")
            elif underlying_mode == 'url':
                if not url:
                    raise ValueError("For 'url' mode in wikidata entity, 'url' must be provided.")
                return collect_wikidata_entity(mode='url', url=url)
            else:
                raise ValueError("Invalid mode for wikidata entity. Use 'title' or 'year'.")
            

    elif platform == 'wikidata_property':
            if underlying_mode == 'title':
                if not title or (years and len(years)>0):
                    raise ValueError("For 'title' mode in wikidata property, 'title' must be provided and 'years' must be empty.")
                return collect_wikidata(mode='title', title=title, years=[])
            elif underlying_mode == 'url':
                if not url:
                    raise ValueError("For 'url' mode in wikidata property, 'url' must be provided.")
                return collect_wikidata(mode='url', title='', url=url, years=[])
            
            elif underlying_mode == 'year':
                if start_date and end_date:
                    start_year = int(datetime.strptime(start_date, "%Y-%m-%d").year)
                    end_year = int(datetime.strptime(end_date, "%Y-%m-%d").year)
                    return collect_wikidata(mode='year', years=[start_year, end_year])
                elif start_date:
                    single_year = int(datetime.strptime(start_date, "%Y-%m-%d").year)
                    return collect_wikidata(mode='year', years=single_year)
                else:
                    raise ValueError("For 'year' mode in wikidata property, start_date (and optionally end_date) is required.")
            else:
                raise ValueError("Invalid mode for wikidata property. Use 'title' or 'year'.")

        # else:
        #     raise ValueError("Invalid lang for wikidata. Use 'entity' or 'property'.")

    elif platform == 'wikinews':
        if underlying_mode == 'title':
            if not title:
                raise ValueError("For 'title' mode in wikinews, 'title' is required.")
            return collect_wikinews(mode='title', title=title)
        elif underlying_mode == 'url':
            if not url:
                raise ValueError("For 'url' mode in wikinews, 'url' is required.")
            return collect_wikinews(mode='url', url=url)
        elif underlying_mode == 'year':
            if start_date and end_date:
                start_y = int(datetime.strptime(start_date, "%Y-%m-%d").year)
                end_y = int(datetime.strptime(end_date, "%Y-%m-%d").year)
                return collect_wikinews(mode='year', year=[start_y, end_y])
            elif start_date:
                single_y = int(datetime.strptime(start_date, "%Y-%m-%d").year)
                return collect_wikinews(mode='year', year=single_y)
            else:
                raise ValueError("For 'year' mode in wikinews, start_date (and optionally end_date) is required.")
        else:
            raise ValueError("Invalid mode for wikinews. Use 'title' or 'year' or  'url'.")

    # elif platform == 'wikiquote':
    #     if underlying_mode != 'title':
    #         raise ValueError("Wikiquote collection currently only supports 'title' mode.")
    #     if not title:
    #         title = 'all'
    #     return collect_wikiquote(mode='title', title=title)
    elif platform == 'wikiquote':
        if underlying_mode not in ['title', 'url']:
            raise ValueError("Wikiquote collection currently only supports 'title' or 'url' mode.")

        if underlying_mode == 'title':
            if not title:
                title = 'all'
            return collect_wikiquote(mode='title', title=title)
        elif underlying_mode == 'url':
            if not url:
                raise ValueError("For 'url' mode in wikiquote, 'url' must be provided.")
            return collect_wikiquote(mode='url', url=url)


    elif platform == 'wikipedia':
        if lang == 'es':
            if underlying_mode == 'title':
                if not title or date:
                    raise ValueError("For 'title' mode in spanish wikipedia, 'title' must be provided and 'date' must be empty.")
                return collect_es(mode='title', title=title, date='')
            elif underlying_mode == 'year':
                if not date:
                    raise ValueError("For 'year' mode in spanish wikipedia, 'date' parameter (dd/mm/yyyy) is required.")
                return collect_es(mode='year', title='', date=date)
            else:
                raise ValueError("Invalid mode for spanish wikipedia. Use 'title' or 'year'.")

        elif lang == 'gr':
            if underlying_mode == 'title':
                if not title or not years or len(years) != 1:
                    raise ValueError("For 'title' mode in greek wikipedia, 'title' and a single-element list years=['mm/yyyy'] are required.")
                return collect_gr(mode='title', title=title, years=years)
            elif underlying_mode == 'year':
                if start_date and end_date:
                    start_y = int(datetime.strptime(start_date, "%Y-%m-%d").year)
                    end_y = int(datetime.strptime(end_date, "%Y-%m-%d").year)
                    return collect_gr(mode='year', title='', years=[start_y,end_y])
                elif start_date:
                    single_y = int(datetime.strptime(start_date, "%Y-%m-%d").year)
                    return collect_gr(mode='year', title='', years=[single_y])
                else:
                    raise ValueError("For 'year' mode in greek wikipedia, start_date (and optionally end_date) is required.")
            else:
                raise ValueError("Invalid mode for greek wikipedia. Use 'title' or 'year'.")

        else:
            raise ValueError("Invalid lang for wikipedia. Use 'en', 'es', or 'gr'.")

    else:
        raise ValueError("Invalid platform. Use 'wikipedia', 'wikidata_entity', Wikidata_property', 'wikinews', or 'wikiquote'.")