package design.model;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.annotation.JsonPropertyOrder;

import java.util.ArrayList;
import java.util.List;

import design.model.undo.Memento;
import design.model.undo.Originator;

@JsonPropertyOrder({ "clubs", "nextClubId" })
public class Golfer implements Originator {
    private String username;
    private int passwordHash;
    private String fullName;
    private final List<Course> courses;
    private final List<Round> rounds;
    private final List<Club> clubs; // Keep track of golfer's clubs
    private int nextClubId;


    
    @JsonCreator
    private Golfer(String username, int passwordHash, String fullName, List<Course> courses, List<Round> rounds,
            List<Club> clubs) {
        this.username = username;
        this.passwordHash = passwordHash;
        this.fullName = fullName;
        this.courses = courses;
        this.rounds = rounds;
        this.clubs = clubs;
        this.nextClubId = this.clubs.stream().mapToInt(Club::getId).max().orElse(0) + 1;
    }

    public Golfer(String fullName, String username, String password) {
        this.fullName = fullName;
        this.username = username;
        this.passwordHash = password.hashCode();
        this.courses = new ArrayList<>();
        this.rounds = new ArrayList<>();
        this.clubs = new ArrayList<>();
        this.nextClubId = 1;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getFullName() {
        return fullName;
    }

    public void setFullName(String fullName) {
        this.fullName = fullName;
    }

    public void setPassword(String password) {
        this.passwordHash = password.hashCode();
    }

    public boolean checkPassword(String password) {
        return passwordHash == password.hashCode();
    }

    public Course[] getCourses() {
        return courses.toArray(Course[]::new);
    }

    public void addCourse(Course course) {
        courses.add(course);
    }

    public void removeCourse(Course course) {
        courses.remove(course);
    }

    public boolean hasCourses() {
        return !courses.isEmpty();
    }

    public Round[] getRounds() {
        return rounds.toArray(Round[]::new);
    }

    public void addRound(Round round) {
        rounds.add(round);
    }

    public Club addClub(Club c) {
        clubs.add(c);
        c.setId(nextClubId++);
        return c;
    }

    public boolean hasClubs() {
        return !clubs.isEmpty();
    }

    public boolean hasClub(Club c) {
        return clubs.contains(c);
    }

    public Club[] getClubs() {
        return clubs.toArray(Club[]::new);
    }

    @Override
    public String toString() {
        return String.format("%s (@%s)", fullName, username);
    }

    public void removeClub(Club c) {
        clubs.remove(c);
    }

    // Takes a snapshot of the golfer
    private static class GolferMemento implements Memento {
        private final String username;
        private final int passwordHash;
        private final String fullName;
        private final List<Course> courses;
        private final List<Round> rounds;
        private final List<Club> clubs;
        private final int nextClubId;

        GolferMemento(Golfer g) {
            this.username = g.username;
            this.passwordHash = g.passwordHash;
            this.fullName = g.fullName;
            this.courses = new ArrayList<>(g.courses);
            this.rounds = new ArrayList<>(g.rounds);
            this.clubs = new ArrayList<>(g.clubs);
            this.nextClubId = g.nextClubId;
        }
    }

    @Override
    public Memento createMemento() {
        return new GolferMemento(this);
    }

    @Override
    public void restore(Memento memento) {
        GolferMemento gm = (GolferMemento) memento;

        this.username = gm.username;
        this.passwordHash = gm.passwordHash;
        this.fullName = gm.fullName;

        this.courses.clear();
        this.courses.addAll(gm.courses);

        this.rounds.clear();
        this.rounds.addAll(gm.rounds);

        this.clubs.clear();
        this.clubs.addAll(gm.clubs);

        this.nextClubId = gm.nextClubId;
    }
}