move ddns service script to it's own file

hosts/gerg-desktop/services/ddns.nix

@@ -1,4 +1,8 @@
-{ config, pkgs }:
+{
+  config,
+  pkgs,
+  _dir,
+}:
 {
   sops.secrets.cloudflare = { };
 
@@ -26,62 +30,6 @@
       pkgs.curl
     ];
 
-    script = ''
-      if ! nc -zw1 google.com 443 &>/dev/null; then
-        echo No Internet access... bailing early
-        exit 0
-      fi
-
-      IP=$(grep -oP '^((?!fe80).).{22}ffee.{5}' /proc/net/if_inet6 | sed -E 's/(.{4})/\1:/g; s/.$//')
-
-      func () {
-        RECORD="$1"
-        ZONE="$2"
-        PROXY="''${3:-"true"}"
-
-
-        REQ=$(curl --silent \
-          --request GET \
-          --url "https://api.cloudflare.com/client/v4/zones/$ZONE/dns_records" \
-          --header 'Content-Type: application/json' \
-          --header "Authorization: Bearer $AUTH"
-        )
-
-        readarray -t AR < <(jq -r '.result[].name' <<< "$REQ")
-
-        for i in "''${!AR[@]}"; do
-          if [ "''${AR[i]}" == "$RECORD" ]; then
-            ID=$(jq -r ".result[$i].id" <<< "$REQ")
-            if [ "$(jq -r ".result[$i].content" <<< "$REQ")" == "$IP" ]; then
-              echo "IP was the same, returing early"
-              return 0
-            fi
-            break
-          fi
-        done
-
-
-        curl --silent \
-          --request PATCH \
-          --url "https://api.cloudflare.com/client/v4/zones/$ZONE/dns_records/$ID" \
-          --header "Authorization: Bearer $AUTH" \
-          --header "Content-Type: application/json" \
-          --data '{
-          "content": "'"$IP"'",
-          "name": "'"$RECORD"'",
-          "proxied": '"$PROXY"',
-          "type": "AAAA",
-          "comment": "",
-          "tags": [],
-          "ttl":  1
-        }'
-      }
-
-      func "*.gerg-l.com" "8f76f071c5edbc0f947a5c5f9c5df9f8"
-      func "gerg-l.com" "8f76f071c5edbc0f947a5c5f9c5df9f8" "false"
-      func "minecraft.gerg-l.com" "8f76f071c5edbc0f947a5c5f9c5df9f8" "false"
-      func "*.nix-fu.com" "cc2df9163c3730f58b866409ac5a108c"
-      func "nix-fu.com" "cc2df9163c3730f58b866409ac5a108c"
-    '';
+    script = builtins.readFile "${_dir}/ddns_script.sh";
   };
 }