Create service to populate Imdb data collection within mongo

We can use this collection as an alternative source to lookup imdb ids, which would be executed before name_to_imdb is called in the consumer.

src/metadata/Features/DownloadImdbData/GetImdbDataRequestHandler.cs

@@ -0,0 +1,30 @@
+namespace Metadata.Features.DownloadImdbData;
+
+public class GetImdbDataRequestHandler(IHttpClientFactory clientFactory, ILogger<GetImdbDataRequestHandler> logger)
+{
+    private const string TitleBasicsFileName = "title.basics.tsv";
+    
+    public async Task<ImportImdbDataRequest> Handle(GetImdbDataRequest _, CancellationToken cancellationToken)
+    {
+        logger.LogInformation("Downloading IMDB data");
+        
+        var client = clientFactory.CreateClient("imdb-data");
+        var response = await client.GetAsync($"{TitleBasicsFileName}.gz", cancellationToken);
+        
+        var tempFile = Path.Combine(Path.GetTempPath(), TitleBasicsFileName);
+        
+        response.EnsureSuccessStatusCode();
+        
+        await using var stream = await response.Content.ReadAsStreamAsync(cancellationToken);
+        await using var gzipStream = new GZipStream(stream, CompressionMode.Decompress);
+        await using var fileStream = File.Create(tempFile);
+        
+        await gzipStream.CopyToAsync(fileStream, cancellationToken);
+        
+        logger.LogInformation("Downloaded IMDB data to {TempFile}", tempFile);
+        
+        fileStream.Close();
+
+        return new(tempFile);
+    }
+}