timekeep-backend/src/main/java/de/pnreichmuth/timekeep_backend/entities/Station.java

package de.pnreichmuth.timekeep_backend.entities;

import de.pnreichmuth.timekeep_backend.exceptions.TeamExistsException;
import de.pnreichmuth.timekeep_backend.exceptions.TeamNotFoundException;
import jakarta.persistence.*;
import lombok.Getter;
import lombok.NoArgsConstructor;

import java.time.LocalDate;
import java.util.*;

@Entity
@Getter
@NoArgsConstructor
public class Station {
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private UUID id;

    private String name;
    private String location;
    private String passwordHash;

    @ManyToMany(cascade = {CascadeType.DETACH, CascadeType.MERGE, CascadeType.PERSIST, CascadeType.REFRESH})
    @JoinTable(name="team_passed_stations")
    private Set<Team> passedTeams;

    @ElementCollection
    private Map<Team, LocalDate> passingTimes;

    public Station(String name, String location){
        this.name = name;
        this.location = location;
        this.passwordHash = null;
        this.passedTeams = new HashSet<>(1);
        this.passingTimes = new HashMap<>(1);
    }

    public void teamPassed(Team team){
        if(!passedTeams.add(team)){
            throw new TeamExistsException("Team %s was already seen at this Station: %s".formatted(team.getTeamName(), this.location), team);
        }
        passingTimes.put(team, LocalDate.now());
    }

    public void removePassedTeam(Team team){
        if (!passedTeams.contains(team)) throw new TeamNotFoundException("Team %s was never seen at this station: %s".formatted(team.getTeamName(), this.location));
        passedTeams.remove(team);
        passingTimes.remove(team);
    }

    public String setPasswordHash(String passwordHash){
        if(this.passwordHash != null) throw new IllegalStateException("Password has already been set");
        this.passwordHash = passwordHash;
        return this.passwordHash;
    }
}