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126 changes: 124 additions & 2 deletions roman-time.js
Original file line number Diff line number Diff line change
Expand Up @@ -4,9 +4,131 @@
* @param {String} time – время в формате HH:MM (например, 09:05)
* @returns {String} – время римскими цифрами (IX:V)
*/
function checkIsValid(time) {
if (time === null || time === undefined || time.length < 5){
throw new TypeError('Ошибка, неверный тип данных!', 'roman-time.js');
}
}

function getHours(hour) {
switch (hour){
case 0:
return 'N';
case 1:
return 'I';
case 2:
return 'II';
case 3:
return 'III';
case 4:
return 'IV';
case 5:
return 'V';
case 6:
return 'VI';
case 7:
return 'VII';
case 8:
return 'VII';
case 9:
return 'IX';
case 10:
return 'X';
}
}

function getNumber(number) {
switch (number){
case '00':
return 'N';
case '01':
return 'I';
case '02':
return 'II';
case '03':
return 'III';
case '04':
return 'IV';
case '05':
return 'V';
case '06':
return 'VI';
case '07':
return 'VII';
case '08':
return 'VII';
case '09':
return 'IX';
case '10':
return 'X';
}
}


function romanTime(time) {
// Немного авторского кода и замечательной магии
return time;
checkIsValid(time);

try {
var times = time.split(':');
}
catch (e) {
throw new TypeError('Ошибка, неверный тип данных!', 'roman-time.js');
}

if (times.length !== 2){
throw new TypeError('Ошибка, неверный тип данных!', 'roman-time.js');
}

if (!(times[0] >= 0 && times[0] <= 23) && (times[1] >= 0 && times[1] <= 59)){
throw new TypeError('Ошибка, неверный тип данных!', 'roman-time.js');
}

var str = '';

if (times[0]<= 10) {
str += getNumber(times[0]) + ':';
}
else {
var hour = times[0];
while (hour / 10 >= 1){
hour = hour-10;
str += 'X';
}
if (times[0] % 10 > 0) {
str += getHours(times[0] % 10) + ':';
}
else{
str += ':';
}
}

if (times[1]<=10){
str += getNumber(times[1]);
}
else if (times[1] < 40){
var minutes = times[1];
while (minutes / 10 >= 1 ){
minutes = minutes - 10;
str += 'X';
}
if (times[1] % 10 > 0) {
str += getHours(times[1] % 10);
}
}
else if (times[1] >= 40 && times[1] < 50){
str +='XV';
if (times[1] % 10 > 0) {
str += getHours(times[1] % 10);
}
}
else if (times[1] >= 50){
str +='V';
if (times[1] % 10 > 0) {
str += getHours(times[1] % 10);
}
}

return str;
}

module.exports = romanTime;