From 6ffb80322bc69c5e1c4ff091ac91d22aace58fde Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Kier=C3=A1n=20Meinhardt?= <kmein@posteo.de>
Date: Tue, 13 May 2025 19:51:43 +0200
Subject: [PATCH] radio news digest

---
 secrets                        |  2 +-
 systems/makanek/radio-news.nix | 65 ++++++++++++++++++++++++++++++++++
 2 files changed, 66 insertions(+), 1 deletion(-)

diff --git a/secrets b/secrets
index 04f66a7..1f7aea0 160000
--- a/secrets
+++ b/secrets
@@ -1 +1 @@
-Subproject commit 04f66a729699db308ff7c5291d4915a42e0c3fff
+Subproject commit 1f7aea07f7e3cac6a2af69d52163fd64f6ae5467
diff --git a/systems/makanek/radio-news.nix b/systems/makanek/radio-news.nix
index f1f3848..0887a55 100644
--- a/systems/makanek/radio-news.nix
+++ b/systems/makanek/radio-news.nix
@@ -1,4 +1,5 @@
 {
+  config,
   pkgs,
   lib,
   ...
@@ -8,6 +9,70 @@
 in {
   services.nginx.virtualHosts."redaktion.r".locations."/".extraConfig = serveHtml ../../lib/radio-news.html pkgs;
 
+  age.secrets = {
+    gemini-api-key.file = ../../secrets/gemini-api-key.age;
+  };
+
+  systemd.services.news-digest = {
+    enable = true;
+    wantedBy = ["multi-user.target"];
+    wants = ["network-online.target"];
+    serviceConfig.LoadCredential = [
+      "gemini-api-key:${config.age.secrets.gemini-api-key.path}"
+    ];
+    startAt = "hourly";
+    script = ''
+      PATH=$PATH:${lib.makeBinPath [pkgs.w3m pkgs.gnused pkgs.curl pkgs.jq]}
+
+      export TOKEN="$(cat "$CREDENTIALS_DIRECTORY/gemini-api-key")"
+
+      WIKI_URL="https://en.wikipedia.org/wiki/Portal:Current_events"
+
+      EVENTS=$(w3m -dump "$WIKI_URL" | sed -n "/$(date -I)/,/$(date -I -d yesterday)/p" | head -n -1)
+
+      SYSTEM_PROMPT=$(cat <<EOF
+      You are a news anchor writing a short news digest for a radio broadcast.
+      Summarize the following news headlines into a cohesive, engaging script under 400 words.
+      Keep it professional, concise, and easy to follow.
+
+      Begin the digest with: "Good news everybody! Here's your news update for $(date -u +"%B %d, %Y")..."
+      EOF
+      )
+
+      REQUEST=$(cat <<EOF
+      {
+          "system_instruction": {
+            "parts": [
+              {
+                "text": $(jq -Rs <<< "$SYSTEM_PROMPT")
+              }
+            ]
+          },
+          "contents": [
+            {
+              "parts": [
+                {
+                  "text": "Current events (from Wikipedia): $(echo "$EVENTS")"
+
+                }
+              ]
+            }
+          ]
+        }
+      EOF
+      )
+
+      RESPONSE=$(echo "$REQUEST" | curl "https://generativelanguage.googleapis.com/v1beta/models/gemini-1.5-flash-8b:generateContent?key=$GEMINI_API_KEY" -s -H "Content-Type: application/json" -d @-)
+
+      echo "$RESPONSE" | jq --arg from "$(date -u -Is | sed 's/+00:00/Z/')" --arg to "$(date -u -Is -d 'next hour' | sed 's/+00:00/Z/')" '
+        {
+          from: $from,
+          to: $to,
+          text: .candidates[].content.parts[].text
+        }' | curl -s -X POST http://radio-news.r -H "Content-Type: application/json" -d @-
+    '';
+  };
+
   niveum.passport.services = [
     {
       title = "Retiolum Radio News";