FamilyTree

package _08FamilyTree;

import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        String input = scanner.nextLine();

        Person person = new Person();
        if (input.contains("/")) {
            person.setBdate(input);
            person.setName("");

        } else {
            person.setName(input);
            person.setBdate("");
        }
        System.out.println(person);
        input = scanner.nextLine();
        Map<String, String> parents = new LinkedHashMap<>();
        Map<String, String> children = new LinkedHashMap<>(); //11/11/1951 - Name BD 23/05/1980

        while (!input.equals("End")) {
            if (input.contains(" - ")) {
                String[] tokens = input.split(" - ");

                if (!tokens[0].contains("/") && !tokens[1].contains("/")) { //name name
                    if (!tokens[0].equals(person.getName()) && !person.getName().equals("")) {
                        parents.put(tokens[0], "");
                    }
                    if (!tokens[1].equals(person.getName()) && !person.getName().equals("")) {
                        children.put(tokens[1], "");
                    }
                } else if (!tokens[0].contains("/") && tokens[1].contains("/")) {//name date
                    if (!tokens[0].equals(person.getName())) {
                        parents.put(tokens[0], "");
                    }
                    if (!person.getBdate().equals(tokens[1])) {
                        children.put("", tokens[1]);
                    }
                } else if (tokens[0].contains("/") && !tokens[1].contains("/")) { //date name
                    if (!person.getBdate().equals(tokens[0])) {
                        parents.put("", tokens[0]);
                    }
                    if (!person.getName().equals(tokens[1])) {
                        children.put(tokens[1], "");
                    }
                } else if (tokens[0].contains("/") && tokens[1].contains("/")) { //date date
                    if (!person.getBdate().equals(tokens[0])) {
                        parents.put("", tokens[0]);
                    }
                    if (!person.getBdate().equals(tokens[1])) {
                        children.put("", tokens[1]);
                    }
                }
            } else {
                String[] tokens = input.split("\\s+");
                String name = tokens[0] + " " + tokens[1];

                if (person.getBdate().equals(tokens[2]) || person.getName().equals(name)) {
                    parents.entrySet().removeIf(e -> e.getValue().equals(tokens[2]));
                    children.entrySet().removeIf(e -> e.getValue().equals(tokens[2]));
                    parents.entrySet().removeIf(e -> e.getKey().equals(name));
                    children.entrySet().removeIf(e -> e.getKey().equals(name));

                    if (person.getBdate().equals(tokens[2])) {
                        person.setName(name);
                    }
                    if (person.getName().equals(name)) {
                        person.setBdate(tokens[2]);
                    }
                }
                    for (Map.Entry<String, String> en : parents.entrySet()) {
                        if (en.getKey().equals("") && en.getValue().equals(tokens[2])) {
                            parents.replace(name, tokens[2]);

                        } else if (en.getValue().equals("") && en.getKey().equals(name)) {
                            parents.replace(name, "", tokens[2]);
                        }
                    }
                    //{=11/11/1951, Penka Pesheva=09/02/1953}
                     //{Gancho Peshev=01/01/2005}
                    for (Map.Entry<String, String> en : children.entrySet()) {
                        if (en.getKey().equals("") && en.getValue().equals(tokens[2])) {
                            children.replace(name, tokens[2]);
                        } else if (en.getValue().equals("") && en.getKey().equals(name)) {
                            children.replace(name, "", tokens[2]);
                        }

                    }
                }
           // System.out.println(parents);
           // System.out.println(children);
                input = scanner.nextLine();
            }


    }
    }