@startuml Tournament System


' class Group

' Match med bare to teams:
' class Match {
'     *match_id: Integer
'     tournament_id: Integer
'     team1_id: Integer
'     team2_id: Integer
'     scores: [Integer, Integer]
'     winner_id: Integer
'     void setScore(team1_score: Integer, team2_score: Integer)
'     void setWinner(winner_id: Integer)
'     Integer getWinner()
' }

' Match med vilkårlig antall teams
class Match {
    *match_id: Integer
    tournament_id: Integer
    team_ids: Integer[]
    scores: Integer[]
    winner_id: Integer

    Match constructor(tournament_id: Integer, team_ids: Integer[])
    void setScore(team_id: Integer, score: Integer)
    void setWinner(winner_id: Integer)
    Integer getWinner()
}
class Team {
    *team_id: Integer
    name: String
    tournament_ids: Integer[]
    player_ids: Integer[]
    match_ids: Integer[]

    Team constructor(name: String)
    void joinTournament(tournament_id: Integer)
    void addPlayer(player_id: Integer)
    void addMatch(match_id: Integer)
    void removePlayer(player_id: Integer)
    void removeMatch(match_id: Integer)
    void leaveTournament(tournament_id: Integer)
}
class Player {
    *player_id: Integer
    name: String
    team_id: Integer


    Player constructor(name: String)
    void joinTeam(team_id: Integer)
    void leaveTeam()
}

class Tournament {
    *tournament_id: Integer
    name: String
    start_date: Date
    end_date: Date
    team_ids: Integer[]

    Tournament constructor(name: String, start_date: Date, end_date: Date)
    void addTeam(team_id: Integer)
    void removeTeam(team_id: Integer)
}


Tournament "1" *-- "2..*" Team : contains
Tournament "1" *-- "*" Match : contains
Player "1..*" *-- "1" Team : belongsTo
Match "*" *--- "2" Team : contains


@enduml