From 5b35bac6ffc00848ae7fe016bee096afcc04c98c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Hampus=20Sj=C3=B6berg?= <hampus.sjoberg@protonmail.com>
Date: Tue, 27 Apr 2021 19:46:25 +0200
Subject: [PATCH] Page views tracking

---
 .gitignore         |  1 +
 index.ts           |  3 +++
 pageviews/index.ts | 24 ++++++++++++++++++++++++
 run-server.sh      |  2 +-
 4 files changed, 29 insertions(+), 1 deletion(-)
 create mode 100644 pageviews/index.ts

diff --git a/.gitignore b/.gitignore
index 981b050..7a510cf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,4 @@
 dist
 
 config/config.ts
+pageviews.json
diff --git a/index.ts b/index.ts
index 42b9933..94f77c4 100644
--- a/index.ts
+++ b/index.ts
@@ -3,11 +3,14 @@ import { Application, send } from "https://deno.land/x/oak@v7.3.0/mod.ts";
 import config from "./config/config.ts";
 import router from "./api.ts";
 import { bootstrapBlocks } from "./blocks.ts";
+import Pageviews from "./pageviews/index.ts";
 
 await bootstrapBlocks();
 
 const app = new Application();
 
+app.use(Pageviews);
+
 app.use(router.routes());
 
 app.use(async (context) => {
diff --git a/pageviews/index.ts b/pageviews/index.ts
new file mode 100644
index 0000000..b3de2b8
--- /dev/null
+++ b/pageviews/index.ts
@@ -0,0 +1,24 @@
+import { Middleware } from "https://deno.land/x/oak@v7.3.0/mod.ts";
+import { ensureFile } from "https://deno.land/std/fs/mod.ts";
+import format from "https://deno.land/x/date_fns@v2.15.0/format/index.js";
+
+await ensureFile("./pageviews.json");
+interface IPageViews {
+  [key: string]: number;
+}
+const pageViews: IPageViews = JSON.parse((await Deno.readTextFile("./pageviews.json")) || "{}");
+
+const PageviewsMiddleware: Middleware = async function (_, next) {
+  try {
+    const date = format(new Date(), "yyyy-MM-dd", {});
+    pageViews[date] = pageViews[date] ?? 0;
+    pageViews[date] = pageViews[date] + 1;
+    await Deno.writeTextFile("./pageviews.json", JSON.stringify(pageViews, null, 2));
+  } catch (e) {
+    console.log(e.message);
+  }
+
+  await next();
+};
+
+export default PageviewsMiddleware;
diff --git a/run-server.sh b/run-server.sh
index 3a5cdfd..7d420d7 100755
--- a/run-server.sh
+++ b/run-server.sh
@@ -6,4 +6,4 @@ mkdir frontend/dist
 deno run -A https://deno.land/x/aleph@v0.3.0-alpha.32/cli.ts build frontend --reload
 
 # Run backend
-deno run --allow-net --allow-read index.ts
+deno run --unstable --allow-net --allow-read --allow-write index.ts