Problem 11. Beer Time

// A beer time is after 1:00 PM and before 3:00 AM.
// Write a program that enters a time in format “hh:mm tt” (an hour in range [01...12],
// a minute in range [00…59] and AM / PM designator) and prints beer time or non-beer time according to
// the definition above or invalid time if the time cannot be parsed.
//
// Hint: Research sub-string functions for string data type.
// Examples:
// time             result
// 1:00 PM          beer time
// 4:30 PM          beer time
// 10:57 PM         beer time
// 8:30 AM          non-beer time
// 02:59 AM         beer time
// 03:00 AM         non-beer time
// 03:26 AM         non-beer time

let input = [ '3:26 AM' ];

let print = this.print || console.log;
let gets = this.gets || ((arr, index) => () => arr[index++])(input, 0);

let userInput = gets();

//how to indent that the time for the beer is correct
// constrains - 1:00 PM ~ 3:00 AM

// beer time in case is AM check available diapason 1:00 AM to 2:59 AM
// none drinking hours 3:01 AM -> 4:00 AM - 5:00 AM - 6:00 AM - 7:00 AM - 8:00 AM - 9:00 AM - 10:00 AM - 11:00 AM - 12:00 AM - 12:59 AM <-

// extract the tt marker from the input
// -- check if the tt marker point PM if so print message

let tt = userInput.substring(userInput.length, userInput.length - 2);
let hh = ''; //
let lenghtInput = userInput.length;

// check the length of the input
//- in case it is 8 char long slice second char
//- in case it is 7 char long slice first char

switch (lenghtInput) {
    case 7:
        hh = Number(userInput.substring(0, 1));
        break;
    case 8:
        hh = Number(userInput.substring(0, 2));
        break;
    default:
        console.log('error');
}

if (tt === 'PM') {
    print('beer time');
} else if (tt === 'AM') {
    if (hh > 2) {
        print('non-beer time');
    } else if (hh <= 2) {
        print('beer time');
    }
}