Use Data frames response format (#1099)

* Use data frames for numeric data

* Use data frames for text data

* Use data frames for IT services

* fix multiple series

* Convert to the wide format if possible

* Fix table format for text data

* Add refId to the data frames

* Align time series from Zabbix API

* Fill gaps with nulls

* Fix moving average functions

* Option for disabling data alignment

* remove unused logging

* Add labels to data frames

* Detect units

* Set min and max for if percent unit used

* Use value mapping from Zabbix

* Rename unitConverter -> convertZabbixUnit

* More units

* Add missing points in front of each series

* Fix handling table data

* fix db connector data frames handling

* fix it services data frames handling

* Detect all known grafana units

* Chore: remove unused logging

* Fix problems format

* Debug logging: show original units

* Add global option for disabling data alignment

* Add tooltip for the disableDataAlignment feature

* Add note about query options

* Functions for aligning timeseries on the backend

src/datasource-zabbix/types.ts

@@ -13,6 +13,7 @@ export interface ZabbixDSOptions extends DataSourceJsonData {
   dbConnectionDatasourceName?: string;
   dbConnectionRetentionPolicy?: string;
   disableReadOnlyUsersAck: boolean;
+  disableDataAlignment: boolean;
 }
 
 export interface ZabbixSecureJSONData {
@@ -37,7 +38,7 @@ export interface ZabbixMetricsQuery extends DataQuery {
   queryType: string;
   datasourceId: number;
   functions: ZabbixMetricFunction[];
-  options: any;
+  options: ZabbixQueryOptions;
   textFilter: string;
   mode: number;
   itemids: number[];
@@ -50,6 +51,19 @@ export interface ZabbixMetricsQuery extends DataQuery {
   itemFilter: string;
 }
 
+export interface ZabbixQueryOptions {
+  showDisabledItems?: boolean;
+  skipEmptyValues?: boolean;
+  disableDataAlignment?: boolean;
+  // Problems options
+  minSeverity?: number;
+  sortProblems?: string;
+  acknowledged?: number;
+  hostsInMaintenance?: boolean;
+  hostProxy?: boolean;
+  limit?: number;
+}
+
 export interface ZabbixMetricFunction {
   name: string;
   params: any;