Implemented importing servers from CSV file

src/servers/services/ServersImporter.js

@@ -0,0 +1,27 @@
+import csvjson from 'csvjson';
+
+export class ServersImporter {
+  constructor(csvjson) {
+    this.csvjson = csvjson;
+  }
+
+  importServersFromFile = (file) => {
+    if (!file || file.type !== 'text/csv') {
+      return Promise.reject('No file provided or file is not a CSV');
+    }
+
+    const reader = new FileReader();
+    return new Promise(resolve => {
+      reader.onloadend = e => {
+        const content = e.target.result;
+        const servers = this.csvjson.toObject(content);
+
+        resolve(servers);
+      };
+      reader.readAsText(file);
+    });
+  };
+}
+
+const serversImporter = new ServersImporter(csvjson);
+export default serversImporter;

src/servers/services/ServersService.js

@@ -1,5 +1,5 @@
 import Storage from '../../utils/Storage';
-import { dissoc } from 'ramda';
+import { assoc, dissoc, reduce } from 'ramda';
 
 const SERVERS_STORAGE_KEY = 'servers';
 
@@ -8,25 +8,26 @@ export class ServersService {
     this.storage = storage;
   }
 
-  listServers = () => {
-    return this.storage.get(SERVERS_STORAGE_KEY) || {};
+  listServers = () => this.storage.get(SERVERS_STORAGE_KEY) || {};
+
+  findServerById = serverId => this.listServers()[serverId];
+
+  createServer = server => this.createServers([server]);
+
+  createServers = servers => {
+    const allServers = reduce(
+      (serversObj, server) => assoc(server.id, server, serversObj),
+      this.listServers(),
+      servers
+    );
+    this.storage.set(SERVERS_STORAGE_KEY, allServers);
   };
 
-  findServerById = serverId => {
-    const servers = this.listServers();
-    return servers[serverId];
-  };
-
-  createServer = server => {
-    const servers = this.listServers();
-    servers[server.id] = server;
-    this.storage.set(SERVERS_STORAGE_KEY, servers);
-  };
-
-  deleteServer = server => {
-    const servers = dissoc(server.id, this.listServers());
-    this.storage.set(SERVERS_STORAGE_KEY, servers);
-  };
+  deleteServer = server =>
+    this.storage.set(
+      SERVERS_STORAGE_KEY,
+      dissoc(server.id, this.listServers())
+    );
 }
 
 export default new ServersService(Storage);