feat: advanced custom channel (#5590)

model/channel.go

@@ -945,6 +945,26 @@ func (channel *Channel) ValidateSettings() error {
 			return err
 		}
 	}
+	channelOtherSettings := &dto.ChannelOtherSettings{}
+	if channel.OtherSettings != "" {
+		err := common.UnmarshalJsonStr(channel.OtherSettings, channelOtherSettings)
+		if err != nil {
+			return err
+		}
+	}
+	if channel.Type == constant.ChannelTypeAdvancedCustom {
+		if channelOtherSettings.AdvancedCustom == nil {
+			return fmt.Errorf("advanced_custom is required")
+		}
+		if channelOtherSettings.AdvancedCustom.Fallback.Enabled && (channel.BaseURL == nil || strings.TrimSpace(*channel.BaseURL) == "") {
+			return fmt.Errorf("base_url is required when advanced_custom advanced_fallback is enabled")
+		}
+	}
+	if channelOtherSettings.AdvancedCustom != nil {
+		if err := channelOtherSettings.AdvancedCustom.Validate(); err != nil {
+			return err
+		}
+	}
 	return nil
 }