package com.hwhub.backend.domain.enums; public enum SenderType implements CodeEnum { YOU("USER"), AI_SUPPORT("AI"), STAFF("STAFF"); private final String code; SenderType(String code) { this.code = code; } @Override public String getCode() { return code; } public static SenderType fromCode(String code) { for (SenderType v : values()) { if (v.code.equals(code)) { return v; } } throw new IllegalArgumentException("Invalid SenderType code: " + code); } }