/* eslint-disable eslint-comments/no-unlimited-disable */
/* eslint-disable */
// @ts-nocheck

import { getWeekYear } from '../../../getWeekYear/index.ts';
import type { Match } from '../../../locale/types.ts';
import { startOfWeek } from '../../../startOfWeek/index.ts';
import { Parser } from '../Parser.ts';
import type { ParseFlags, ParseResult, ParserOptions } from '../types.ts';
import { mapValue, normalizeTwoDigitYear, parseNDigits } from '../utils.ts';
import type { YearParserValue } from './YearParser.ts';

// Local week-numbering year
export class LocalWeekYearParser extends Parser<YearParserValue> {
  priority = 130;

  parse(dateString: string, token: string, match: Match): ParseResult<YearParserValue> {
    const valueCallback = (year: number) => ({
      year,
      isTwoDigitYear: token === 'YY',
    });

    switch (token) {
      case 'Y':
        return mapValue(parseNDigits(4, dateString), valueCallback);
      case 'Yo':
        return mapValue(
          match.ordinalNumber(dateString, {
            unit: 'year',
          }),
          valueCallback,
        );
      default:
        return mapValue(parseNDigits(token.length, dateString), valueCallback);
    }
  }

  validate<DateType extends Date>(_date: DateType, value: YearParserValue): boolean {
    return value.isTwoDigitYear || value.year > 0;
  }

  set<DateType extends Date>(
    date: DateType,
    flags: ParseFlags,
    value: YearParserValue,
    options: ParserOptions,
  ): DateType {
    const currentYear = getWeekYear(date, options);

    if (value.isTwoDigitYear) {
      const normalizedTwoDigitYear = normalizeTwoDigitYear(value.year, currentYear);
      date.setFullYear(normalizedTwoDigitYear, 0, options.firstWeekContainsDate);
      date.setHours(0, 0, 0, 0);
      return startOfWeek(date, options);
    }

    const year = !('era' in flags) || flags.era === 1 ? value.year : 1 - value.year;
    date.setFullYear(year, 0, options.firstWeekContainsDate);
    date.setHours(0, 0, 0, 0);
    return startOfWeek(date, options);
  }

  incompatibleTokens: string[] = ['y', 'R', 'u', 'Q', 'q', 'M', 'L', 'I', 'd', 'D', 'i', 't', 'T'];
}

/* eslint-enable */