package kindergarten;

public class Child {
    //полета -> характеристики
    private String firstName;
    private String lastName;
    private int age;
    private String parentName;
    private String contactNumber;


    //методи -> действия
    //1. конструктор

    public Child(String firstName, String lastName, int age, String parentName, String contactNumber) {
        //ново дете
        this.firstName = firstName;
        this.lastName = lastName;
        this.age = age;
        this.parentName = parentName;
        this.contactNumber = contactNumber;
    }

    //2. getters and setters
    public String getFirstName() {
        return firstName;
    }

    public void setFirstName(String firstName) {
        this.firstName = firstName;
    }

    public String getLastName() {
        return lastName;
    }

    public void setLastName(String lastName) {
        this.lastName = lastName;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public String getParentName() {
        return parentName;
    }

    public void setParentName(String parentName) {
        this.parentName = parentName;
    }

    public String getContactNumber() {
        return contactNumber;
    }

    public void setContactNumber(String contactNumber) {
        this.contactNumber = contactNumber;
    }

    //3. toString

    @Override
    public String toString() {
        //"Child: {firstName} {lastName}, Age: {age}, Contact info: {parentName} - {contactNumber}"
        return String.format("Child: %s %s, Age: %d, Contact info: %s - %s",
                                        this.firstName, this.lastName, this.age, this.parentName, this.contactNumber);
    }
}


package kindergarten;

import java.util.ArrayList;
import java.util.Comparator;
import java.util.List;
import java.util.stream.Collectors;

public class Kindergarten {
    //полета -> хаарктеристики
    private String name;
    private int capacity;
    private List<Child> registry;

    //методи
    //1. конструктор

    public Kindergarten(String name, int capacity) {
        //нова детска градина
        this.name = name;
        this.capacity = capacity;
        this.registry = new ArrayList<>();
    }

    public boolean addChild(Child child) {
        //false -> ако нямаме място
        if (this.registry.size() >= this.capacity) {
            return false;
        }
        //true -> ако имаме място
        this.registry.add(child);
        return true;
    }

    public boolean removeChild(String firstName) {
        for (Child child : this.registry) {
            if (child.getFirstName().equals(firstName)) {
                this.registry.remove(child);
                return true;
            }
        }

        //нито едно дете не е с даденото име
        return false;
    }

    public int getChildrenCount() {
        return this.registry.size();
    }

    public Child getChild(String firstName) {
        for (Child child : this.registry) {
            if (child.getFirstName().equals(firstName)) {
                return child;
            }
        }
        //няма такова дете
        return null;

        //return this.registry.stream()
        // .filter(ch -> ch.getFirstName().equals(firstName))
        // .findFirst().orElse(null);
    }

    public String registryReport() {
        //by age ascending, then by first name ascending, then by last name ascending
        List<Child> sortedListOfChildren = this.registry.stream().sorted(Comparator.comparing(Child::getAge)
                                                                        .thenComparing(Child::getFirstName)
                                                                        .thenComparing(Child::getLastName))
                                                                        .collect(Collectors.toList());
        StringBuilder sb = new StringBuilder();
        sb.append(String.format("Registered children in %s:", this.name));


        for (Child child : sortedListOfChildren) {
            sb.append(System.lineSeparator()); //нов ред на всички операционни системи
            sb.append("--").append(System.lineSeparator());
            sb.append(child.toString());
        }

        return sb.toString();
    }
}