import { setDay } from "../../../setDay.mjs";
import { Parser } from "../Parser.mjs";

// Day of week
export class DayParser extends Parser {
  priority = 90;

  parse(dateString, token, match) {
    switch (token) {
      // Tue
      case "E":
      case "EE":
      case "EEE":
        return (
          match.day(dateString, {
            width: "abbreviated",
            context: "formatting",
          }) ||
          match.day(dateString, { width: "short", context: "formatting" }) ||
          match.day(dateString, { width: "narrow", context: "formatting" })
        );

      // T
      case "EEEEE":
        return match.day(dateString, {
          width: "narrow",
          context: "formatting",
        });
      // Tu
      case "EEEEEE":
        return (
          match.day(dateString, { width: "short", context: "formatting" }) ||
          match.day(dateString, { width: "narrow", context: "formatting" })
        );

      // Tuesday
      case "EEEE":
      default:
        return (
          match.day(dateString, { width: "wide", context: "formatting" }) ||
          match.day(dateString, {
            width: "abbreviated",
            context: "formatting",
          }) ||
          match.day(dateString, { width: "short", context: "formatting" }) ||
          match.day(dateString, { width: "narrow", context: "formatting" })
        );
    }
  }

  validate(_date, value) {
    return value >= 0 && value <= 6;
  }

  set(date, _flags, value, options) {
    date = setDay(date, value, options);
    date.setHours(0, 0, 0, 0);
    return date;
  }

  incompatibleTokens = ["D", "i", "e", "c", "t", "T"];
}