public Function getInternalFormatFunction()

in src/main/java/com/epam/parso/date/SasTimeFormat.java [272:313]
37 lines of code
14 McCabe index (conditional complexity)

        public Function<Double, String> getInternalFormatFunction(int width, int precision) {
            return (sasSeconds) -> {
                if (sasSeconds < 0 || sasSeconds > SECONDS_IN_DAY) {
                    return nChars('*', width);
                }

                BigDecimal daySeconds = roundSeconds(sasSeconds, precision)
                        .remainder(BIG_SECONDS_IN_DAY);
                BigDecimal[] parts = daySeconds.divideAndRemainder(BIG_SECONDS_IN_HOUR);

                int adjustedPrecision = precision;
                int firstTwoDigitsNumberAfterSingleDigit = 10;
                if (parts[0].longValue() >= firstTwoDigitsNumberAfterSingleDigit
                        && precision > 0 && width - precision == 8) {
                    adjustedPrecision = precision - 1;
                    daySeconds = roundSeconds(sasSeconds, adjustedPrecision)
                            .remainder(BIG_SECONDS_IN_DAY);
                    parts = daySeconds.divideAndRemainder(BIG_SECONDS_IN_HOUR);
                }

                String hh = String.valueOf(parts[0].longValue());
                if (hh.length() == 1 && !(width == 4 || width == 7
                        || (adjustedPrecision > 0 && width - 8 == adjustedPrecision))) {
                    hh = '0' + hh;
                }

                parts = parts[1].divideAndRemainder(BIG_SECONDS_IN_MINUTE);
                String mm = String.valueOf(parts[0].longValue());
                String hhmm = hh + (mm.length() == 1 ? ":0" : ":") + mm;

                String ss = String.valueOf(parts[1].longValue());
                String hhmmss = hhmm + (ss.length() == 1 ? ":0" : ":") + ss;
                if (adjustedPrecision == 0 || hhmmss.length() > width - adjustedPrecision) {
                    return hhmmss;
                } else {
                    adjustedPrecision = Math.min(adjustedPrecision, width - hhmmss.length());
                    String nanos = parts[1].remainder(BigDecimal.ONE).toString()
                            .substring(1, adjustedPrecision + 2);
                    return hhmmss + nanos;
                }
            };
        }