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

import type { Match } from '../../../locale/types.ts';
import { setDay } from '../../../setDay/index.ts';
import { Parser } from '../Parser.ts';
import type { ParseFlags, ParseResult, ParserOptions } from '../types.ts';
import { mapValue, parseNDigits } from '../utils.ts';

// Stand-alone local day of week
export class StandAloneLocalDayParser extends Parser<number> {
  priority = 90;

  parse(dateString: string, token: string, match: Match, options: ParserOptions): ParseResult<number> {
    const valueCallback = (value: number) => {
      // We want here floor instead of trunc, so we get -7 for value 0 instead of 0
      const wholeWeekDays = Math.floor((value - 1) / 7) * 7;
      return ((value + options.weekStartsOn + 6) % 7) + wholeWeekDays;
    };

    switch (token) {
      // 3
      case 'c':
      case 'cc': // 03
        return mapValue(parseNDigits(token.length, dateString), valueCallback);
      // 3rd
      case 'co':
        return mapValue(
          match.ordinalNumber(dateString, {
            unit: 'day',
          }),
          valueCallback,
        );
      // Tue
      case 'ccc':
        return (
          match.day(dateString, {
            width: 'abbreviated',
            context: 'standalone',
          }) ||
          match.day(dateString, { width: 'short', context: 'standalone' }) ||
          match.day(dateString, { width: 'narrow', context: 'standalone' })
        );
      // T
      case 'ccccc':
        return match.day(dateString, {
          width: 'narrow',
          context: 'standalone',
        });
      // Tu
      case 'cccccc':
        return (
          match.day(dateString, { width: 'short', context: 'standalone' }) ||
          match.day(dateString, { width: 'narrow', context: 'standalone' })
        );
      // Tuesday
      case 'cccc':
      default:
        return (
          match.day(dateString, { width: 'wide', context: 'standalone' }) ||
          match.day(dateString, {
            width: 'abbreviated',
            context: 'standalone',
          }) ||
          match.day(dateString, { width: 'short', context: 'standalone' }) ||
          match.day(dateString, { width: 'narrow', context: 'standalone' })
        );
    }
  }

  validate<DateType extends Date>(_date: DateType, value: number): boolean {
    return value >= 0 && value <= 6;
  }

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

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

/* eslint-enable */