feat: 支持OpenRouter接口；修复当Atom的published时间为空导致的解析问题，为空时使用修改时间；

config/runtime.exs

@@ -124,3 +124,5 @@ config :honyaku, groq_api_key: System.get_env("GROQ_API_KEY")
 config :honyaku, deepl_api_key: System.get_env("DEEPL_API_KEY")
 # Rapid API key 生产环境
 config :honyaku, rapid_api_key: System.get_env("RAPID_API_KEY")
+# Open Router API key 生产环境
+config :honyaku, open_router_api_key: System.get_env("OPEN_ROUTER_API_KEY")

lib/honyaku/contexts/feeds/feed.ex

@@ -69,8 +69,10 @@ defmodule Honyaku.Feeds do
   def save_articles(feed, entries) do
     entries
     |> Enum.map(fn entry ->
-      with {:ok, original_published_at} <- DateTimeUtils.parse_datetime(entry["published"]),
-           {:ok, original_updated_at} <- DateTimeUtils.parse_datetime(entry["updated"]) do
+      with {:ok, original_published_at} <-
+             DateTimeUtils.parse_datetime(entry["published"] || entry["updated"]),
+           {:ok, original_updated_at} <-
+             DateTimeUtils.parse_datetime(entry["updated"] || entry["published"]) do
         article = %{
           feed_id: feed.id,
           link: entry["links"] |> List.first() |> Map.get("href"),

lib/honyaku/contexts/feeds/parser.ex

@@ -118,7 +118,6 @@ defmodule Honyaku.Feeds.ParseFeed do
                 "title" => nil
               }
             ],
-            "published" => item["pub_date"],
             "rights" => nil,
             "source" => nil,
             "summary" => %{
@@ -133,6 +132,7 @@ defmodule Honyaku.Feeds.ParseFeed do
               "type" => "Text",
               "value" => item["title"]
             },
+            "published" => item["pub_date"],
             "updated" => item["pub_date"]
           }
         end)
@@ -244,12 +244,10 @@ defmodule Honyaku.Feeds.ParseFeed do
      }}
   end
 
-  @doc """
-  获取 Feed 字段的翻译结果
-  1. 如果数据库中已存在翻译结果，则直接返回
-  2. 如果数据库中不存在翻译结果，则创建翻译任务
-  2.1 如果翻译任务成功，则将翻译结果保存到数据库中
-  """
+  # 获取 Feed 字段的翻译结果
+  # 1. 如果数据库中已存在翻译结果，则直接返回
+  # 2. 如果数据库中不存在翻译结果，则创建翻译任务
+  # 2.1 如果翻译任务成功，则将翻译结果保存到数据库中
   defp get_feed_field_translation(feed_with_preload, saved_feed, field, target_lang, source_lang) do
     Task.async(fn ->
       case Enum.find(feed_with_preload.translations, fn t ->

lib/honyaku/external/load_balancer.ex

@@ -11,10 +11,19 @@ defmodule Honyaku.External.TranslationBalancer do
     Rapid.FreeGoogleTranslator,
     Rapid.AiBitTranslator,
     Rapid.DeepLTranslator,
-    Groq.Gemma2_2b
+    Groq.Gemma2_2b,
+    OpenRouter.Gemini2_Flash
   }
 
-  @apis [Flash1_5, Flash2, FreeGoogleTranslator, AiBitTranslator, DeepLTranslator, Gemma2_2b]
+  @apis [
+    Flash1_5,
+    Flash2,
+    FreeGoogleTranslator,
+    AiBitTranslator,
+    DeepLTranslator,
+    Gemma2_2b,
+    Gemini2_Flash
+  ]
 
   @doc """
   翻译文本，使用指定的负载均衡算法。

lib/honyaku/external/open_router/gemini_2_flash.ex

@@ -0,0 +1,53 @@
+defmodule Honyaku.External.OpenRouter.Gemini2_Flash do
+  require Logger
+
+  @base_url "https://openrouter.ai/api/v1"
+
+  def translate(text, target_lang, source_lang) do
+    key = Application.fetch_env!(:honyaku, :open_router_api_key)
+
+    headers = [
+      {"Authorization", "Bearer #{key}"}
+    ]
+
+    body = %{
+      "messages" => [
+        %{
+          "role" => "user",
+          "content" => """
+          Translate the following text from #{source_lang} to #{target_lang}, and return the translated text only:
+
+          #{text}
+          """
+        }
+      ],
+      "model" => "google/gemini-2.0-flash-thinking-exp:free",
+      "temperature" => 1,
+      "stream" => false
+    }
+
+    case Req.post(
+           "#{@base_url}/chat/completions",
+           headers: headers,
+           json: body
+         ) do
+      {:ok,
+       %Req.Response{
+         status: 200,
+         body: %{"choices" => [%{"message" => %{"content" => content}}]}
+       }} ->
+        {:ok, content}
+
+      {:ok, %Req.Response{status: 429}} ->
+        {:error, :quota_exhausted}
+
+      {:ok, reason} ->
+        Logger.error("翻译失败，未知错误：#{inspect(reason)}")
+        {:error, :unknown_error}
+
+      {:error, reason} ->
+        Logger.error("Gemini API调用失败：#{inspect(reason)}")
+        {:error, reason}
+    end
+  end
+end