import re
from typing import Dict, Union
from model_data.BaseUtility import Definitions
from model_data.epc_attributes.attribute_utils import (
    extract_component_types,
    extract_thermal_transmittance
)


class WallAttributes(Definitions):
    WALL_TYPES = ['cavity wall', 'filled cavity', 'solid brick', 'system built', 'timber frame', 'granite or whinstone',
                  'as built', 'cob', 'assumed', 'sandstone or limestone', "park home"]

    WELSH_TEXT = {
        "Briciau solet, fel yGÇÖu hadeiladwyd, dim inswleiddio (rhagdybiaeth)":
            "Solid brick, as built, no insulation (assumed)",
        'Waliau ceudod, fel yGÇÖu hadeiladwyd, inswleiddio rhannol (rhagdybiaeth)':
            'Cavity wall, as built, partial insulation (assumed)',
        'Waliau ceudod, fel yGÇÖu hadeiladwyd, inswleiddio rhannol':
            'Cavity wall, as built, partial insulation',
        'Waliau ceudod, fel yGÇÖu hadeiladwyd, dim inswleiddio (rhagdybiaeth)':
            'Cavity wall, as built, no insulation (assumed)',
        'Waliau ceudod, fel yGÇÖu hadeiladwyd, dim inswleiddio':
            'Cavity wall, as built, no insulation',
        'Tywodfaen, fel yGÇÖu hadeiladwyd, dim inswleiddio (rhagdybiaeth)':
            'Sandstone or limestone, as built, no insulation (assumed)',
        'Tywodfaen, fel yGÇÖu hadeiladwyd, dim inswleiddio':
            'Sandstone or limestone, as built, no insulation',
        'Waliau ceudod, ceudod wediGÇÖi lenwi': 'Cavity wall, filled cavity',
        'Waliau ceudod, fel yGÇÖu hadeiladwyd, wediGÇÖu hinswleiddio (rhagdybiaeth)':
            'Cavity wall, as built, insulated (assumed)',
        'Waliau ceudod, fel yGÇÖu hadeiladwyd, wediGÇÖu hinswleiddio':
            'Cavity wall, as built, insulated',
        'Gwenithfaen neu risgraig, fel yGÇÖu hadeiladwyd, dim inswleiddio (rhagdybiaeth)':
            'Granite or whinstone, as built, no insulation (assumed)',
        'Waliau ceudod,': 'Cavity wall, as built, no insulation',
        'Ffr+óm bren, fel yGÇÖu hadeiladwyd, wediGÇÖu hinswleiddio (rhagdybiaeth)':
            'Timber frame, as built, insulated (assumed)',
        'Ffr+óm bren, fel yGÇÖu hadeiladwyd, wediGÇÖu hinswleiddio':
            'Timber frame, as built, insulated',
        'Gwenithfaen neu risgraig, gydag inswleiddio allanol': 'Granite or whinstone, with external insulation',
        'WediGÇÖu hadeiladu yn +¦l system, fel yGÇÖu hadeiladwyd, dim inswleiddio (rhagdybiaeth)':
            'System built, as built, no insulation (assumed)',
        'Tywodfaen, gydag inswleiddio mewnol': 'Sandstone or limestone, with internal insulation',
        'Waliau ceudod, ynysydd allanol a llenwi ceudod': 'Cavity wall, filled cavity and external insulation',
        'Gwenithfaen neu risgraig, gydag inswleiddio mewnol': 'Granite or whinstone, with internal insulation',
        'Ffr+óm bren, fel yGÇÖu hadeiladwyd, inswleiddio rhannol (rhagdybiaeth)':
            'Timber frame, as built, partial insulation (assumed)',
        'WediGÇÖu hadeiladu yn +¦l system, fel yGÇÖu hadeiladwyd, wediGÇÖu hinswleiddio (rhagdybiaeth)':
            'System built, as built, insulated (assumed)',
        'WediGÇÖu hadeiladu yn +¦l system, fel yGÇÖu hadeiladwyd, wediGÇÖu hinswleiddio':
            'System built, as built, insulated',
        'WediGÇÖu hadeiladu yn +¦l system, gydag inswleiddio allanol': 'System built, with external insulation',
        'Briciau solet, gydag inswleiddio mewnol': 'Solid brick, with internal insulation',
        'WediGÇÖu hadeiladu yn +¦l system, fel yGÇÖu hadeiladwyd, inswleiddio rhannol (rhagdybiaeth)':
            'System built, as built, partial insulation (assumed)',
        'WediGÇÖu hadeiladu yn +¦l system, fel yGÇÖu hadeiladwyd, inswleiddio rhannol':
            'System built, as built, partial insulation',
        'Ffr+óm bren, fel yGÇÖu hadeiladwyd, dim inswleiddio (rhagdybiaeth)':
            'Timber frame, as built, no insulation (assumed)',
        'Ffr+óm bren, fel yGÇÖu hadeiladwyd, dim inswleiddio':
            'Timber frame, as built, no insulation',
        'Tywodfaen, gydag inswleiddio allanol': 'Sandstone or limestone, with external insulation',
        'Waliau ceudod, gydag inswleiddio allanol': 'Cavity wall, with external insulation',
        'Briciau solet, gydag inswleiddio allanol': 'Solid brick, with external insulation',
        # Add in some corrections:
        'Co with external insulation': 'Cob, with external insulation',
        'Cowith external insulation': 'Cob, with external insulation',
    }

    def __init__(self, description: str):
        """
        :param description: Description of the walls.
        """
        self.description: str = description

        self.welsh_translation_search()

        self.nodata = not description or description in self.DATA_ANOMALY_MATCHES

    def welsh_translation_search(self):
        """
        For some descriptions, we need to translate from Welsh to English
        :return:
        """

        uvalue_search = re.search(r"Trawsyriannedd thermol cyfartalog (\d+\.?\d*)", self.description)

        if uvalue_search:
            uvalue = uvalue_search.group(1)
            self.description = f"Average thermal transmittance {uvalue} W/m-¦K"
        else:
            translation = self.WELSH_TEXT.get(self.description)
            if translation:
                self.nodata = False
                self.description = translation

    def process(self) -> Dict[str, Union[float, str, bool, None]]:
        result: Dict[str, Union[float, str, bool, None]] = {}
        if self.nodata:
            return result

        description = self.description.lower()

        # thermal transmittance - it can be negative which is errneous however we'll still pull it out
        result, description = extract_thermal_transmittance(result, description)

        # wall type
        result, description = extract_component_types(result, description, list_of_components=self.WALL_TYPES)

        # Handle some edge cases
        if "sandstone" in description and not result["is_sandstone_or_limestone"]:
            result["is_sandstone_or_limestone"] = True

        # insulation thickness - this is far from a perfect approach and we'd likely need to use nlp to do this
        # generally however this is sufficient for mvp
        thickness_map = {
            "external insulation": "average",
            "internal insulation": "average",
            "partial insulation": "below average",
            "no insulation": "none",
            "additional insulation": "above average",
            "insulated": "average"
        }
        for key, value in thickness_map.items():
            if key in description:
                result['insulation_thickness'] = value
                break
        else:
            result['insulation_thickness'] = None

        # insulation type
        result['external_insulation'] = 'external insulation' in description
        result['internal_insulation'] = 'internal insulation' in description

        return result