Implement download controller

src/Podsync/Controllers/DownloadController.cs

@@ -0,0 +1,35 @@
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Mvc;
+using Podsync.Services.Links;
+using Podsync.Services.Resolver;
+
+namespace Podsync.Controllers
+{
+    [Route("download")]
+    public class DownloadController : Controller
+    {
+        private readonly IResolverService _resolverService;
+        private readonly ILinkService _linkService;
+
+        public DownloadController(IResolverService resolverService, ILinkService linkService)
+        {
+            _resolverService = resolverService;
+            _linkService = linkService;
+        }
+
+        [Route("{provider}/{videoId}.mp4")]
+        public async Task<IActionResult> Download(Provider provider, string videoId)
+        {
+            var url = _linkService.Make(new LinkInfo
+            {
+                Provider = provider,
+                LinkType = LinkType.Video,
+                Id = videoId
+            });
+
+            var redirectUrl = await _resolverService.Resolve(url);
+
+            return Redirect(redirectUrl.ToString());
+        }
+    }
+}

src/Podsync/Services/Resolver/YtdlWrapper.cs

@@ -50,9 +50,9 @@ namespace Podsync.Services.Resolver
             switch (resolveType)
             {
                 case ResolveType.VideoHigh:
-                    return "bestvideo";
+                    return "best";
                 case ResolveType.VideoLow:
-                    return "worstvideo";
+                    return "worst";
                 case ResolveType.AudioHigh:
                     return "bestaudio";
                 case ResolveType.AudioLow:

src/Podsync/Startup.cs

@@ -5,6 +5,7 @@ using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
 using Podsync.Services;
 using Podsync.Services.Links;
+using Podsync.Services.Resolver;
 using Podsync.Services.Videos.YouTube;
 
 namespace Podsync
@@ -15,8 +16,8 @@ namespace Podsync
         {
             var builder = new ConfigurationBuilder()
                 .SetBasePath(env.ContentRootPath)
-                .AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)
-                .AddJsonFile($"appsettings.{env.EnvironmentName}.json", optional: true)
+                .AddJsonFile("appsettings.json", true, true)
+                .AddJsonFile($"appsettings.{env.EnvironmentName}.json", true)
                 .AddEnvironmentVariables();
 
             if (env.IsDevelopment())
@@ -37,6 +38,7 @@ namespace Podsync
             // Register core services
             services.AddSingleton<ILinkService, LinkService>();
             services.AddSingleton<IYouTubeClient, YouTubeClient>();
+            services.AddSingleton<IResolverService, YtdlWrapper>();
 
             // Add framework services.
             services.AddMvc();