class_volodymyr.iuml

@startuml

class Bank {
    - User[] users
    - Administrator[] administrators
    - Account[] accounts
    - Transaction[] transactions
    - TransactionLogger transactionLogger
    + Transaction createTransaction(String senderIBAN, String recipientIBAN, String description, float sum)
    + Transaction modifyTransaction(UUID transactionID, String senderIBAN, String recipientIBAN, String description, float sum)
    + bool storno(UUID transactionID)
    + Transaction addFunds(String recipientIBAN, float sum)
}

class User {
    - String email
    - String password
    - String phoneNumber
    - Account account
}

class Account {
    - String IBAN
    - float balance
    - User user
    - Transaction[] transactions
    + String requestTransaction(String description, float sum)
}

class Administrator {
    - String email
    - String password
}

class Transaction {
    - final UUID id
    - Account sender
    - Account recipient
    - String description
    - float sum
}

interface TransactionLogger {
    - TransactionLogEntry[] logs
    + TransactionLogEntry logTransaction(String description)
}

class DBTransactionLogger {
    - String connectionString
    - TransactionLogEntry[] logs
    + TransactionLogEntry logTransaction(String description)
}

class TransactionLogEntry {
    - LocalDateTime dateTime
    - String desctiption
}

Bank "1" *-down- "0..n" User : has
Bank "1" *-left- "0..n" Administrator : has
Bank "1" *-- "0..n" Account : has
Bank "1" *-- "0..n" Transaction : has
Bank "1" *-right- "1" TransactionLogger : has

Account "1" *-left- "1" User : has
Account "1" o-right- "0 .. n" Transaction : has

DBTransactionLogger --|> TransactionLogger : implements
TransactionLogger "1" *-- "0..n" TransactionLogEntry  : contains

@enduml