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

import type { Match } from '../../../locale/types.ts';
import { numericPatterns } from '../constants.ts';
import { Parser } from '../Parser.ts';
import type { ParseFlags, ParseResult } from '../types.ts';
import { isLeapYearIndex, parseNDigits, parseNumericPattern } from '../utils.ts';

const DAYS_IN_MONTH = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
const DAYS_IN_MONTH_LEAP_YEAR = [31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];

// Day of the month
export class DateParser extends Parser<number> {
  priority = 90;
  subPriority = 1;

  parse(dateString: string, token: string, match: Match): ParseResult<number> {
    switch (token) {
      case 'd':
        return parseNumericPattern(numericPatterns.date, dateString);
      case 'do':
        return match.ordinalNumber(dateString, { unit: 'date' });
      default:
        return parseNDigits(token.length, dateString);
    }
  }

  validate<DateType extends Date>(date: DateType, value: number): boolean {
    const year = date.getFullYear();
    const isLeapYear = isLeapYearIndex(year);
    const month = date.getMonth();
    if (isLeapYear) {
      return value >= 1 && value <= DAYS_IN_MONTH_LEAP_YEAR[month];
    } else {
      return value >= 1 && value <= DAYS_IN_MONTH[month];
    }
  }

  set<DateType extends Date>(date: DateType, _flags: ParseFlags, value: number): DateType {
    date.setDate(value);
    date.setHours(0, 0, 0, 0);
    return date;
  }

  incompatibleTokens: string[] = ['Y', 'R', 'q', 'Q', 'w', 'I', 'D', 'i', 'e', 'c', 't', 'T'];
}

/* eslint-enable */