Add setting controller

src/main/kotlin/top/fatweb/api/converter/system/SettingConverter.kt

@@ -0,0 +1,32 @@
+package top.fatweb.api.converter.system
+
+import top.fatweb.api.param.system.SettingParam
+import top.fatweb.api.setting.MailSetting
+import top.fatweb.api.setting.SystemSetting
+import top.fatweb.api.vo.system.SettingVo
+
+object SettingConverter {
+    fun mailSettingToMailSettingVo(mailSetting: MailSetting) = SettingVo.MailSettingVo(
+        host = mailSetting.host,
+        port = mailSetting.port,
+        username = mailSetting.username,
+        password = mailSetting.password,
+        from = mailSetting.from
+    )
+
+    fun systemSettingToSettingVo(sysSetting: SystemSetting) = SettingVo(
+        mail = sysSetting.mail?.let { mailSettingToMailSettingVo(it) }
+    )
+
+    fun mailSettingParamToMailSetting(mailSettingParam: SettingParam.MailSettingParam) = MailSetting(
+        host = mailSettingParam.host,
+        port = mailSettingParam.port,
+        username = mailSettingParam.username,
+        password = mailSettingParam.password,
+        from = mailSettingParam.from
+    )
+
+    fun settingParamToSystemSetting(settingParam: SettingParam) = SystemSetting(
+        mail = settingParam.mail?.let { mailSettingParamToMailSetting(it) }
+    )
+}