Refactors most controllers and directives into classes for more organized and maintainable code

app/assets/javascripts/directives/views/conflictResolutionModal.js

@@ -0,0 +1,95 @@
+import template from '%/directives/conflict-resolution-modal.pug';
+
+class ConflictResolutionCtrl {
+  /* @ngInject */
+  constructor(
+    $element,
+    alertManager,
+    archiveManager,
+    modelManager,
+    syncManager
+  ) {
+    this.$element = $element;
+    this.alertManager = alertManager;
+    this.archiveManager = archiveManager;
+    this.modelManager = modelManager;
+    this.syncManager = syncManager;
+  }
+
+  $onInit() {
+    this.contentType = this.item1.content_type;
+    this.item1Content = this.createContentString(this.item1);
+    this.item2Content = this.createContentString(this.item2);
+  };
+
+  createContentString(item) {
+    const data = Object.assign({
+      created_at: item.created_at,
+      updated_at: item.updated_at
+    }, item.content);
+    return JSON.stringify(data, null, 2);
+  }
+
+  keepItem1() {
+    this.alertManager.confirm({
+      text: `Are you sure you want to delete the item on the right?`,
+      destructive: true,
+      onConfirm: () => {
+        this.modelManager.setItemToBeDeleted(this.item2);
+        this.syncManager.sync().then(() => {
+          this.applyCallback();
+        })
+        this.dismiss();
+      }
+    });
+  }
+
+  keepItem2() {
+    this.alertManager.confirm({
+      text: `Are you sure you want to delete the item on the left?`,
+      destructive: true,
+      onConfirm: () => {
+        this.modelManager.setItemToBeDeleted(this.item1);
+        this.syncManager.sync().then(() => {
+          this.applyCallback();
+        })
+        this.dismiss();
+      }
+    });
+  }
+
+  keepBoth() {
+    this.applyCallback();
+    this.dismiss();
+  }
+
+  export() {
+    this.archiveManager.downloadBackupOfItems(
+      [this.item1, this.item2],
+      true
+    );
+  }
+
+  applyCallback() {
+    this.callback && this.callback();
+  }
+
+  dismiss() {
+    this.$element.remove();
+  }
+}
+
+export class ConflictResolutionModal {
+  constructor() {
+    this.restrict = 'E';
+    this.template = template;
+    this.controller = ConflictResolutionCtrl;
+    this.controllerAs = 'ctrl';
+    this.bindToController = true;
+    this.scope = {
+      item1: '=',
+      item2: '=',
+      callback: '='
+    };
+  }
+}