package izzcomlib;
using StringTools;

class IzzComLib {
	/**
	 * Returns a random integer between x and y, both inclusive.
	 * Correctly handles whether parameters are given low-to-high or high-to-low.
	 * If parameters are equal, returns x.
	 *
	 * @param	x				The lower value.
	 * @param	y				The upper value.
	 */
	public static function randInt(x, y) {
		if (x < y) {
			return Std.random((y+1)-x)+x;
		} else if (y < x) {
			return Std.random((x+1)-y)+y;
		} else {
			return x;
		}
	}

	/**
	 * Returns a random integer between x and y, both inclusive.
	 * Will not return a result that matches a value in the `exclude` array.
	 *
	 * ⚠️ Does not protect against excluding all possible results! The function will loop endlessly! ⚠️
	 *
	 * @param	x				The lower value.
	 * @param	y				The upper value.
	 * @param	exclude			Array of values that shouldn't be chosen.
	 */
	public static function randIntExclude(x, y, exclude:Array<Int>) {
		if (x == y) {
			return x; // Very minimal mistake protection
		} else {
			var result:Int = 0;

			while (true) {
				result = randInt(x, y);
				if (!exclude.contains(result)) {break;}
			}

			return result;
		}
	}

	/**
	 * Returns the current time in 24hr notation, with left-padding (HH:MM).
	 */
	public static function timestamp() {
		return '${StringTools.lpad(Std.string(Date.now().getHours()), "0", 2)}:${StringTools.lpad(Std.string(Date.now().getMinutes()), "0", 2)}';
	}

	/**
	 * Returns the current date, formatted to ISO 8601 (YYYY-MM-DD).
	 */
	public static function datestamp() {
		return '${Date.now().getFullYear()}-${StringTools.lpad(Std.string(Date.now().getMonth()+1), "0", 2)}-${StringTools.lpad(Std.string(Date.now().getDate()), "0", 2)}';
	}

	/**
	 * Returns the name of the current day of the week.
	 */
	public static function printDay() {
		var weekdays:Array<String> = ["Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"];
		return weekdays[Date.now().getDay()];
	}

	/**
	 * Returns the name of the current month.
	 */
	public static function printMonth() {
		var months:Array<String> = ["January","February","March","April","May","June","July","August","September","October","November","December"];
		return months[Date.now().getMonth()];
	}

	/**
	 * Returns the current day of the month, with left padding.
	 */
	public static function printDate() {
		return StringTools.lpad(Std.string(Date.now().getDate()), "0", 2);
	}
}