package de.marcelkapfer.c.morseconverter.engine;

/*
    This is a Java application for converting writtenMorse and normal morse code.
    Copyright (C) 2014-2015  Marcel Michael Kapfer

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

    Marcel Michael Kapfer
    marcelmichaelkapfer@yahoo.co.nz

 */

public class DecodeWrittenMorseManager {

    public static String getDecodedString(String inputMessage) {
        if(inputMessage.equals("")){
            return "Please enter at least one character";
        } else {
            StringBuffer message = new StringBuffer(inputMessage);
            if (message.toString().endsWith(" ")) {
                message = message.deleteCharAt(message.length() - 1);
            }
            // Variables
            StringBuffer input = new StringBuffer();
            input = input.replace(0, input.length(), message.toString().toUpperCase());
            StringBuilder output = new StringBuilder();
            if (input.toString().equals("LETTERSPACE")) {
                output.replace(0, output.length(), "#");
            } else if (input.toString().equals("END OF WORK")) {
                output.replace(0, output.length(), "000101");
            } else if (input.toString().equals("ERROR")) {
                output.replace(0, output.length(), "00000000");
            } else if (input.toString().equals("STARTING SIGNAL")) {
                output.replace(0, output.length(), "10101");
            } else if (input.toString().equals("ENDING SIGNAL")) {
                output.replace(0, output.length(), "01010");
            } else if (input.toString().equals("UNDERSTOOD")) {
                output.replace(0, output.length(), "00010");
            } else if (input.toString().equals("WAIT")) {
                output.replace(0, output.length(), "01000");
            } else if (input.toString().equals("SOS")) {
                output.replace(0, output.length(), "000111000");
            } else if (input.toString().equals("LETTER SPACE")) {
                output.replace(0, output.length(), "##");
            } else if (input.toString().equals("WORD SPACE")) {
                output.replace(0, output.length(), "+");
            } else {
                while (input.length() > 0) {

                    if (input.toString().startsWith(" ")) {
                        if (output.toString().endsWith("#")) {
                            output.delete(output.length() - 1, output.length());
                        }
                        output.append("+");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith(System.lineSeparator())) {
                        output.append(System.lineSeparator());
                        int indexLineSeparator = input.indexOf(System.lineSeparator());
                        input.delete(indexLineSeparator, indexLineSeparator + System.lineSeparator().length());
                    } else if (input.toString().startsWith("\n")) {
                        output.append(System.lineSeparator());
                        int indexLineSeparator = input.indexOf("\n");
                        input.deleteCharAt(indexLineSeparator);
                    } else if (input.toString().startsWith("A")) {
                        output.append("01#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("B")) {
                        output.append("1000#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("C")) {
                        output.append("1010#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("D")) {
                        output.append("100#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("E")) {
                        output.append("0#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("F")) {
                        output.append("0010#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("G")) {
                        output.append("110#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("H")) {
                        output.append("0000#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("I")) {
                        output.append("00#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("J")) {
                        output.append("0111#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("K")) {
                        output.append("101#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("L")) {
                        output.append("0100#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("M")) {
                        output.append("11#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("N")) {
                        output.append("10#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("O")) {
                        output.append("111#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("P")) {
                        output.append("0110#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("Q")) {
                        output.append("1101#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("R")) {
                        output.append("010#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("S")) {
                        output.append("000#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("T")) {
                        output.append("1#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("U")) {
                        output.append("001#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("V")) {
                        output.append("0001#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("W")) {
                        output.append("011#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("X")) {
                        output.append("1001#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("Y")) {
                        output.append("1011#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("Z")) {
                        output.append("1100#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("0")) {
                        output.append("11111#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("1")) {
                        output.append("01111#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("2")) {
                        output.append("00111#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("3")) {
                        output.append("00011#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("4")) {
                        output.append("00001#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("5")) {
                        output.append("00000#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("6")) {
                        output.append("10000#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("7")) {
                        output.append("11000#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("8")) {
                        output.append("11100#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("9")) {
                        output.append("11110#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("Ä")) {
                        output.append("0101#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("Ö")) {
                        output.append("1110#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("Ü")) {
                        output.append("0011#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("ß")) {
                        output.append("00011000#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith(".")) {
                        output.append("010101#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith(",")) {
                        output.append("110011#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith(":")) {
                        output.append("111000#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith(";")) {
                        output.append("101010#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("?")) {
                        output.append("001100#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("!")) {
                        output.append("101011#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("-")) {
                        output.append("100001#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("_")) {
                        output.append("001101#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("(")) {
                        output.append("10110#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith(")")) {
                        output.append("101101#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("=")) {
                        output.append("10001#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("+")) {
                        output.append("01010#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("/")) {
                        output.append("10010#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("@")) {
                        output.append("011010#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("'")) {
                        output.append("011110#");
                        input.delete(0, 1);
                    } else if (input.toString().startsWith("$")) {
                        output.append("0001001#");
                        input.delete(0, 1);
                    } else {
                        return "Code not listed or wrong.";
                    }
                }
                if (output.toString().endsWith("#")) {
                    output.delete(output.length() - 1, output.length());
                }
            }
            return output.toString();
        }
    }
}