Footer TS

app/assets/javascripts/services/statusManager.js

@@ -1,64 +0,0 @@
-import _ from 'lodash';
-
-export class StatusManager {
-  constructor() {
-    this.statuses = [];
-    this.observers = [];
-  }
-
-  statusFromString(string) {
-    return {string: string};
-  }
-
-  replaceStatusWithString(status, string) {
-    this.removeStatus(status);
-    return this.addStatusFromString(string);
-  }
-
-  addStatusFromString(string) {
-    return this.addStatus(this.statusFromString(string));
-  }
-
-  addStatus(status) {
-    if(typeof status !== "object") {
-      console.error("Attempting to set non-object status", status);
-      return;
-    }
-
-    this.statuses.push(status);
-    this.notifyObservers();
-    return status;
-  }
-
-  removeStatus(status) {
-    _.pull(this.statuses, status);
-    this.notifyObservers();
-    return null;
-  }
-
-  getStatusString() {
-    let result = "";
-    this.statuses.forEach((status, index) => {
-      if(index > 0) {
-        result += "  ";
-      }
-      result += status.string;
-    });
-
-    return result;
-  }
-
-  notifyObservers() {
-    for(const observer of this.observers) {
-      observer(this.getStatusString());
-    }
-  }
-
-  addStatusObserver(callback) {
-    this.observers.push(callback);
-  }
-
-  removeStatusObserver(callback) {
-    _.pull(this.statuses, callback);
-  }
-}

app/assets/javascripts/services/statusManager.ts

@@ -0,0 +1,60 @@
+import { removeFromArray } from 'snjs';
+import { FooterStatus } from './../types';
+
+type StatusCallback = (string: string) => void
+
+export class StatusManager {
+
+  private statuses: FooterStatus[] = []
+  private observers: StatusCallback[] = []
+
+  statusFromString(string: string) {
+    return {string: string};
+  }
+
+  replaceStatusWithString(status: FooterStatus, string: string) {
+    this.removeStatus(status);
+    return this.addStatusFromString(string);
+  }
+
+  addStatusFromString(string: string) {
+    return this.addStatus(this.statusFromString(string));
+  }
+
+  addStatus(status: FooterStatus) {
+    this.statuses.push(status);
+    this.notifyObservers();
+    return status;
+  }
+
+  removeStatus(status: FooterStatus) {
+    removeFromArray(this.statuses, status);
+    this.notifyObservers();
+    return undefined;
+  }
+
+  getStatusString() {
+    let result = '';
+    this.statuses.forEach((status, index) => {
+      if(index > 0) {
+        result += '  ';
+      }
+      result += status.string;
+    });
+
+    return result;
+  }
+
+  notifyObservers() {
+    for(const observer of this.observers) {
+      observer(this.getStatusString());
+    }
+  }
+
+  addStatusObserver(callback: StatusCallback) {
+    this.observers.push(callback);
+    return () => {
+      removeFromArray(this.observers, callback);
+    }
+  }
+}