from typing import List, Tuple
from src.detections import DateDetection, Optional


def _parse_day_or_month(re_entry) -> List[Tuple[int, int, DateDetection]]:
    assert re_entry["day_or_month_year"] is not None
    result = []

    # if re_entry["day_month1"] is not None:
    if len(re_entry["day_month1"]) == 1:
        result.append(
            (
                DateDetection.AnnotationPart.TWO_DIGITS_DAY,
                "0" + re_entry["day_month1"],
            )
        )
    else:
        result.append(
            (DateDetection.AnnotationPart.TWO_DIGITS_DAY, re_entry["day_month1"])
        )
    result.append((DateDetection.AnnotationPart.OTHER, re_entry["punct1"]))

    if len(re_entry["day_month2"]) == 1:
        result.append(
            (
                DateDetection.AnnotationPart.TWO_DIGIT_MONTH,
                "0" + re_entry["day_month2"],
            )
        )
    else:
        result.append(
            (DateDetection.AnnotationPart.TWO_DIGIT_MONTH, re_entry["day_month2"])
        )

    result.append((DateDetection.AnnotationPart.OTHER, re_entry["punct1"]))
    # elif "day_month2" in re_entry:
    #     if len(re_entry["day_month2"]) == 1:
    #         result.append(
    #             (
    #                 DateDetection.AnnotationPart.TWO_DIGIT_MONTH,
    #                 "0" + re_entry["day_month2"],
    #             )
    #         )
    #     else:
    #         result.append(
    #             (DateDetection.AnnotationPart.TWO_DIGIT_MONTH, re_entry["day_month2"])
    #         )

    #     result.append((DateDetection.AnnotationPart.OTHER, re_entry["punct1"]))

    if "year1" in re_entry:
        if len(re_entry["year1"]) == 2:
            result.append(
                (DateDetection.AnnotationPart.TWO_DIGIT_YEAR, re_entry["year1"])
            )
        else:
            result.append(
                (DateDetection.AnnotationPart.FOUR_DIGIT_YEAR, re_entry["year1"])
            )

    return result


def _parse_year_month_or_day(re_entry) -> List[Tuple[int, int, DateDetection]]:
    assert re_entry["year_month_or_day"] is not None
    result = []

    if "year2" in re_entry:
        if len(re_entry["year2"]) == 2:
            result.append(
                (DateDetection.AnnotationPart.TWO_DIGIT_YEAR, re_entry["year2"])
            )
        else:
            result.append(
                (DateDetection.AnnotationPart.FOUR_DIGIT_YEAR, re_entry["year2"])
            )

        result.append((DateDetection.AnnotationPart.OTHER, re_entry["punct3"]))

    if "day_month3" in re_entry:
        if len(re_entry["day_month3"]) == 1:
            result.append(
                (
                    DateDetection.AnnotationPart.TWO_DIGITS_DAY,
                    "0" + re_entry["day_month3"],
                )
            )
        else:
            result.append(
                (DateDetection.AnnotationPart.TWO_DIGITS_DAY, re_entry["day_month3"])
            )
        result.append((DateDetection.AnnotationPart.OTHER, re_entry["punct4"]))

    if "day_month4" in re_entry:
        if len(re_entry["day_month4"]) == 1:
            result.append(
                (
                    DateDetection.AnnotationPart.TWO_DIGIT_MONTH,
                    "0" + re_entry["day_month4"],
                )
            )
        else:
            result.append(
                (DateDetection.AnnotationPart.TWO_DIGIT_MONTH, re_entry["day_month4"])
            )

        result.append((DateDetection.AnnotationPart.OTHER, re_entry["punct4"]))

    return result


def _parse_month_in_words(re_entry) -> List[Tuple[DateDetection.AnnotationPart, str]]:
    assert re_entry["month_in_words"] is not None
    result = []

    if re_entry["day1"] is not None:
        if len(re_entry["day1"]) == 1:
            result.append(
                (DateDetection.AnnotationPart.TWO_DIGITS_DAY, "0" + re_entry["day1"])
            )
        else:
            result.append(
                (DateDetection.AnnotationPart.TWO_DIGITS_DAY, re_entry["day1"])
            )

        result.append((DateDetection.AnnotationPart.OTHER, re_entry["punct5"]))

    if re_entry["month"] is not None:
        result.append((DateDetection.AnnotationPart.TEXT_MONTH, re_entry["month"]))

        if re_entry["day1"] is None:
            result.append((DateDetection.AnnotationPart.OTHER, re_entry["punct7"]))
        else:
            result.append((DateDetection.AnnotationPart.OTHER, re_entry["punct6"]))

    if re_entry["day2"] is not None:
        if len(re_entry["day2"]) == 1:
            result.append(
                (DateDetection.AnnotationPart.TWO_DIGITS_DAY, "0" + re_entry["day2"])
            )
        else:
            result.append(
                (DateDetection.AnnotationPart.TWO_DIGITS_DAY, re_entry["day2"])
            )
        result.append((DateDetection.AnnotationPart.OTHER, re_entry["punct6"]))

    if re_entry["year3"] is not None:
        if len(re_entry["year3"]) == 2:
            result.append(
                (DateDetection.AnnotationPart.TWO_DIGIT_YEAR, re_entry["year3"])
            )
        else:
            result.append(
                (DateDetection.AnnotationPart.FOUR_DIGIT_YEAR, re_entry["year3"])
            )

    return result


def _parse_date_to_format(
    re_entry,
) -> Optional[List[Tuple[DateDetection.AnnotationPart, str]]]:
    if re_entry["day_or_month_year"] is not None:
        result = _parse_day_or_month(re_entry)
    elif re_entry["year_month_or_day"] is not None:
        result = _parse_year_month_or_day(re_entry)
    elif re_entry["month_in_words"] is not None:
        result = _parse_month_in_words(re_entry)
    else:
        result = None

    return result