1 files changed, 26 insertions, 0 deletions
diff --git a/src/background/usecases/VersionUseCase.ts b/src/background/usecases/VersionUseCase.ts
new file mode 100644
index 0000000..ed5112b
--- /dev/null
+++ b/src/background/usecases/VersionUseCase.ts
@@ -0,0 +1,26 @@
+import manifest from '../../../manifest.json';
+import TabPresenter from '../presenters/TabPresenter';
+import NotifyPresenter from '../presenters/NotifyPresenter';
+
+export default class VersionUseCase {
+  constructor() {
+    this.tabPresenter = new TabPresenter();
+    this.notifyPresenter = new NotifyPresenter();
+  }
+
+  notify() {
+    let title = `Vim Vixen ${manifest.version} has been installed`;
+    let message = 'Click here to see release notes';
+    let url = this.releaseNoteUrl(manifest.version);
+    this.notifyPresenter.notify(title, message, () => {
+      this.tabPresenter.create(url);
+    });
+  }
+
+  releaseNoteUrl(version) {
+    if (version) {
+      return `https://github.com/ueokande/vim-vixen/releases/tag/${version}`;
+    }
+    return 'https://github.com/ueokande/vim-vixen/releases/';
+  }
+}