Separate repository's interface and its implementation

1 files changed, 28 insertions, 0 deletions

diff --git a/src/background/completion/impl/HistoryRepositoryImpl.ts b/src/background/completion/impl/HistoryRepositoryImpl.ts
new file mode 100644
index 0000000..42691aa
--- /dev/null
+++ b/src/background/completion/impl/HistoryRepositoryImpl.ts
@@ -0,0 +1,28 @@
+import { injectable } from "tsyringe";
+import * as filters from "./filters";
+import HistoryRepository, {HistoryItem} from "../HistoryRepository";
+
+const COMPLETION_ITEM_LIMIT = 10;
+
+@injectable()
+export default class HistoryRepositoryImpl implements HistoryRepository {
+  async queryHistories(keywords: string): Promise<HistoryItem[]> {
+    const items = await browser.history.search({
+      text: keywords,
+      startTime: 0,
+    });
+
+    return [items]
+      .map(filters.filterBlankTitle)
+      .map(filters.filterHttp)
+      .map(filters.filterByTailingSlash)
+      .map(pages => filters.filterByPathname(pages, COMPLETION_ITEM_LIMIT))
+      .map(pages => filters.filterByOrigin(pages, COMPLETION_ITEM_LIMIT))[0]
+      .sort((x, y) => Number(y.visitCount) - Number(x.visitCount))
+      .slice(0, COMPLETION_ITEM_LIMIT)
+      .map(item => ({
+        title: item.title!!,
+        url: item.url!!,
+      }))
+  }
+}