Members.bolt

path /members/{group_id} {
    read() { hasReadPermission(group_id) }
    index() { "name" }

    path /{member_id} is Member {
        write() { hasWritePermission(group_id) }
    }   
}

type Member {
    active: Boolean,
    bankAccount: BankAccount | Null,
    name: MemberName
}

type BankAccount extends String {
    validate() { hasMaxLength(this, 24) }
}

type MemberName extends String {
    validate() { hasMaxLength(this, 20) }
}

hasMaxLength(text, length) {
    text.length > 0 && text.length <= length
}

hasReadPermission(group_id) {
    prior(root).permissions[group_id][auth.uid].level >= 10
}

hasWritePermission(group_id) {
    prior(root).permissions[group_id][auth.uid].level >= 20
}