//jQuery click handler
$('#btnTacocat').on('click', () => {
    let input = $('#inpTacocat').val()
    if (input.length >= 3 && input.length <= 20) {
        let reverse = tacocatReverseLoop(input)
        $('#outReverse').text(reverse)
        $('#outPalindrome').text(input)
        reverse === input
            ? $('#outPalindrome').text('This IS a palindrome!')
            : $('#outPalindrome').text('NOT a palindrome.')
        $('#outputTacocat').show()
        $('#errorTacocat').hide()
    } else {
        $('#outputTacocat').hide()
        adjustErrorLabel(input)
    }
})

//Reverse Loop through the word:
function tacocatReverseLoop(word) {
	let reverse = ''
	for (let i = word.length - 1; i >= 0; i--) {
		reverse += word[i]
	}
	return reverse
}

//Using built in functions instead of reverse loop:
function tacocat(word) {
    return word.split('').reverse().join('')
}
					

function sunsetHills(arrBuildings) {
	let results = [arrBuildings[0]];
	for(i = 1; i < arrBuildings.length; i++) {
		let blocked = false;
		for (j = i - 1; j >= 0; j--) {
			if (arrBuildings[j] >= arrBuildings[i]) {
				blocked = true;
			}
		}
		if (blocked != true) {
			results.push(arrBuildings[i]);
		}
	}
	return results;
}						
				

function sunsetHills(arrBuildings) {
  let results = [arrBuildings[0]];
  for(i = 1; i < arrBuildings.length; i++) {
    let blocked = false;
	for (j = i - 1; j >= 0; j--) {
		if (arrBuildings[j] >= arrBuildings[i]) {
			blocked = true;
		}
	}
	if (blocked != true) {
		results.push(arrBuildings[i]);
	}
  }
  return results;
}
				

function IntToRoman(num) {
    let result = "";

    for (let k in RomanNumerals) {
        while (num >= RomanNumerals[k]) {
            num -= RomanNumerals[k]
            result += k
        }
    }
    return result;
}

function RomanToInt(roman) {
    let result = 0;
    roman = roman.toUpperCase();
    for (let i = 0; i < roman.length; i++){
    switch (roman[i]) {
        case 'M':
            result += 1000;
            break;
        case 'D':
            result += 500;
            break;
        case 'C':
            if (roman.length > (i + 1) && roman[i + 1] == 'M') {
                result += 900;
                i++;
                break;
            } else if (roman.length > (i + 1) && roman[i + 1] == 'D') {
                result += 400;
                i++;
                break;
            } else {
                result += 100;
                break;
            }
        case 'L':
            result += 50;
            break;
        case 'X':
            if (roman.length > (i + 1) && roman[i + 1] == 'C') {
                result += 90;
                i++;
                break;
            } else if (roman.length > (i + 1) && roman[i + 1] == 'L') {
                result += 40;
                i++;
                break;
            } else {
                result += 10;
                break;
            }
        case 'V':
            result += 5;
            break;
        case 'I':
            if (roman.length > (i + 1) && roman[i + 1] == 'X') {
                result += 9;
                i++;
                break;
            } else if (roman.length > (i + 1) && roman[i + 1] == 'V') {
                result += 4;
                i++;
                break;
            } else {
                result += 1;
                break;
            }
        default:
            return false;
        }
    }
    return result;
}

var RomanNumerals = {
    M: 1000,
    CM: 900,
    D: 500,
    CD: 400,
    C: 100,
    XC: 90,
    L: 50,
    XL: 40,
    X: 10,
    IX: 9,
    V: 5,
    IV: 4,
    I: 1
}