"""Scrapes Tavex.dk prices.

By request of my colleague.
"""

import abc
from decimal import Decimal
import dataclasses
import datetime
import logging
import re
import secrets

import bs4

import personal_data.html_util
import personal_data.parse_util
from personal_data.data import DeduplicateMode, Scraper

def parse_dkk_price(dkk: str) -> Decimal:
    print(dkk)
    if dkk.strip() == '-':
        return None
    return Decimal(dkk.removesuffix(' DKK').replace(',','.'))

@dataclasses.dataclass(frozen=True)
class TavexScraperBase(Scraper):
    deduplicate_mode = DeduplicateMode.BY_ALL_COLUMNS

    @staticmethod
    def requires_cfscrape() -> bool:
        return True

    @abc.abstractmethod
    def page_url() -> str:
        pass

    def scrape(self):
        response = self.session.get(self.page_url())
        response.raise_for_status()

        NOW = personal_data.parse_util.parse_response_datetime(response)

        soup = bs4.BeautifulSoup(response.content, 'lxml')
        soup_page = personal_data.html_util.normalize_soup_slightly(
            soup,
            classes=False,
            scripts=True,
        )

        soup = soup.select_one('.product-poster__box .product-poster__table')

        table = []
        for soup_row in soup.children:
            if isinstance(soup_row, bs4.NavigableString):
                continue
            table.append([soup_cell.get_text().strip() for soup_cell in soup_row if not isinstance(soup_cell, bs4.NavigableString)])

        yield {
                'time': NOW,
                'buy': parse_dkk_price(table[1][1]),
                'sell': parse_dkk_price(table[1][2]),
                'spread_percentage': Decimal(table[1][3].removesuffix('%')) if len(table[1]) > 3 else None
        }

@dataclasses.dataclass(frozen=True)
class TavexScraperGold(TavexScraperBase):
    dataset_name = 'prices_tavex_gold'
    deduplicate_mode = DeduplicateMode.BY_ALL_COLUMNS

    @staticmethod
    def page_url() -> str:
        return 'https://tavex.dk/guld/1oz-canadisk-maple-leaf-guldmont/'

@dataclasses.dataclass(frozen=True)
class TavexScraperSilver(TavexScraperBase):
    dataset_name = 'prices_tavex_silver'
    deduplicate_mode = DeduplicateMode.BY_ALL_COLUMNS

    @staticmethod
    def page_url() -> str:
        return 'https://tavex.dk/solv/1-oz-american-eagle-solvmont-tidligere-argange/'