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'use strict';
var BEEP_DELAY = 500;
function beep() {
process.stdout.write('\u0007');
}
function melodicalBeep(val, cb) {
if (val.length === 0) {
cb();
return;
}
setTimeout(function () {
if (val.shift() === '*') {
beep();
}
melodicalBeep(val, cb);
}, BEEP_DELAY);
}
module.exports = function (val, cb) {
if (!process.stdout.isTTY ||
process.argv.indexOf('--no-beep') !== -1 ||
process.argv.indexOf('--beep=false') !== -1) {
return;
}
cb = cb || function () {};
if (val === parseInt(val)) {
if (val < 0) {
throw new TypeError('Negative numbers are not accepted');
}
if (val === 0) {
cb();
return;
}
for (var i = 0; i < val; i++) {
setTimeout(function (i) {
beep();
if (i === val - 1) {
cb();
}
}, BEEP_DELAY * i, i);
}
} else if (!val) {
beep();
cb();
} else if (typeof val === 'string') {
melodicalBeep(val.split(''), cb);
} else {
throw new TypeError('Not an accepted type');
}
};
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