YouTube PubSub

KfChatDotNetBot/Services/YouTubeApi.cs

@@ -1,6 +1,42 @@
+using System.Net;
+using System.Net.Http.Headers;
+using System.Net.Http.Json;
+using KfChatDotNetBot.Models;
+using KfChatDotNetBot.Settings;
+
 namespace KfChatDotNetBot.Services;
 
-public class YouTubeApi
+public static class YouTubeApi
 {
-    
+    private static async Task<HttpClient> GetHttpClient()
+    {
+        var settings = 
+            await SettingsProvider.GetMultipleValuesAsync([BuiltIn.Keys.YouTubeApiKey, BuiltIn.Keys.Proxy]);
+        if (settings[BuiltIn.Keys.YouTubeApiKey].Value == null)
+            throw new InvalidOperationException("YouTube API key has not been configured");
+        var handler = new HttpClientHandler();
+        if (settings[BuiltIn.Keys.Proxy].Value != null)
+        {
+            handler.Proxy = new WebProxy(settings[BuiltIn.Keys.Proxy].Value);
+            handler.UseProxy = true;
+        }
+        handler.AutomaticDecompression = DecompressionMethods.All;
+        var client = new HttpClient(handler);
+        client.DefaultRequestHeaders.UserAgent.Clear();
+        client.DefaultRequestHeaders.UserAgent.Add(new ProductInfoHeaderValue("KenoGPT", "1.0"));
+        client.DefaultRequestHeaders.Add("X-Goog-Api-Key", settings[BuiltIn.Keys.YouTubeApiKey].Value);
+        client.BaseAddress = new Uri("https://www.googleapis.com/youtube/v3/");
+        client.DefaultRequestHeaders.Accept.Clear();
+        client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
+        return client;
+    }
+
+    public static async Task<YouTubeApiModels.ItemModel?> GetVideoDetails(string id)
+    {
+        var client = await GetHttpClient();
+        var response =
+            await client.GetFromJsonAsync<YouTubeApiModels.ContentDetailsRoot>($"videos?part=snippet&id={id}");
+        if (response?.Items.Count == 0) return null;
+        return response?.Items[0];
+    }
 }