My First Clean Architecture

src/background/usecases/completions.js

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+import CompletionItem from '../domains/completion-item';
+import CompletionGroup from '../domains/completion-group';
+import Completions from '../domains/completions';
+import CompletionRepository from '../repositories/completions';
+import CommandDocs from 'background/shared/commands/docs';
+
+export default class CompletionsInteractor {
+  constructor() {
+    this.completionRepository = new CompletionRepository();
+  }
+
+  queryConsoleCommand(prefix) {
+    let keys = Object.keys(CommandDocs);
+    let items = keys
+      .filter(name => name.startsWith(prefix))
+      .map(name => ({
+        caption: name,
+        content: name,
+        url: CommandDocs[name],
+      }));
+
+    if (items.length === 0) {
+      return Promise.resolve(Completions.empty());
+    }
+    return Promise.resolve(new Completions(
+      [new CompletionGroup('Console Command', items)]
+    ));
+  }
+
+  async queryBdeleteCommand(name, force, args) {
+    let tabs = await this.completionRepository.queryTabs(args);
+    let items = tabs.map(tab => new CompletionItem({
+      caption: tab.title,
+      content: name + ' ' + tab.title,
+      url: tab.url,
+      icon: tab.favIconUrl
+    }));
+    return [new CompletionGroup('Buffers', items)];
+  }
+}