pub enum CurrentScreen {
    Main,
    Add,
    Settings,
    Delete,
    Exit,
}

pub enum EditingField {
    FromIP,
    FromPort,
    ToIP,
    ToPort,
}

pub enum EntryValError {
    None,
    ToPortValError,
    FromPortValError,
    ToIPValError,
    FromIPValError,
}

pub enum AppStatus {
    Welcome,
    Editing,
    Error(EntryValError),
    Added,
    Saved,
    Deleted,
}

pub fn entryValError2Field(err: &EntryValError) -> EditingField {
    match err {
        EntryValError::ToPortValError => EditingField::ToPort,
        EntryValError::FromPortValError => EditingField::FromPort,
        EntryValError::ToIPValError => EditingField::ToIP,
        EntryValError::FromIPValError => EditingField::FromIP,
        EntryValError::None => EditingField::FromIP,
    }
}