autodetect zabbix version

src/datasource-zabbix/config.controller.js

@@ -2,6 +2,11 @@ import _ from 'lodash';
 import { migrateDSConfig } from './migrations';
 
 const SUPPORTED_SQL_DS = ['mysql', 'postgres'];
+const zabbixVersions = [
+  { name: '2.x', value: 2 },
+  { name: '3.x', value: 3 },
+  { name: '4.x', value: 4 },
+];
 
 const defaultConfig = {
   trends: false,
@@ -10,7 +15,8 @@ const defaultConfig = {
   alerting: false,
   addThresholds: false,
   alertingMinSeverity: 3,
-  disableReadOnlyUsersAck: false
+  disableReadOnlyUsersAck: false,
+  zabbixVersion: 3,
 };
 
 export class ZabbixDSConfigController {
@@ -22,6 +28,8 @@ export class ZabbixDSConfigController {
     this.current.jsonData = migrateDSConfig(this.current.jsonData);
     _.defaults(this.current.jsonData, defaultConfig);
     this.sqlDataSources = this.getSupportedSQLDataSources();
+    this.zabbixVersions = _.cloneDeep(zabbixVersions);
+    this.autoDetectZabbixVersion();
   }
 
   getSupportedSQLDataSources() {
@@ -30,4 +38,23 @@ export class ZabbixDSConfigController {
       return _.includes(SUPPORTED_SQL_DS, ds.type);
     });
   }
+
+  autoDetectZabbixVersion() {
+    if (!this.current.id) {
+      return;
+    }
+
+    this.datasourceSrv.loadDatasource(this.current.name)
+    .then(ds => {
+      return ds.getVersion();
+    })
+    .then(version => {
+      if (version) {
+        if (!_.find(zabbixVersions, ['value', version])) {
+          this.zabbixVersions.push({ name: version + '.x', value: version });
+        }
+        this.current.jsonData.zabbixVersion = version;
+      }
+    });
+  }
 }