From 4368019fe7e60be41fb62a631f5e3068405a2a11 Mon Sep 17 00:00:00 2001
From: jvyden <jvyden@jvyden.xyz>
Date: Wed, 20 Oct 2021 18:50:16 -0400
Subject: [PATCH] Check for resources that are already uploaded in
 /filterResources

Consider a part 2 to closing #16.
---
 .../Controllers/ResourcesController.cs          | 17 ++++++++++++++++-
 ProjectLighthouse/Types/ResourceList.cs         |  9 +++++++++
 2 files changed, 25 insertions(+), 1 deletion(-)
 create mode 100644 ProjectLighthouse/Types/ResourceList.cs

diff --git a/ProjectLighthouse/Controllers/ResourcesController.cs b/ProjectLighthouse/Controllers/ResourcesController.cs
index 83a1ba41..615df77a 100644
--- a/ProjectLighthouse/Controllers/ResourcesController.cs
+++ b/ProjectLighthouse/Controllers/ResourcesController.cs
@@ -1,9 +1,12 @@
 using System.IO;
+using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using System.Xml.Serialization;
 using Microsoft.AspNetCore.Mvc;
 using ProjectLighthouse.Helpers;
 using ProjectLighthouse.Serialization;
+using ProjectLighthouse.Types;
 using ProjectLighthouse.Types.Files;
 using IOFile = System.IO.File;
 
@@ -20,7 +23,19 @@ namespace ProjectLighthouse.Controllers {
         [HttpPost("filterResources")]
         [HttpPost("showNotUploaded")]
         public async Task<IActionResult> FilterResources() {
-            return this.Ok(await new StreamReader(Request.Body).ReadToEndAsync());
+            string bodyString = await new StreamReader(Request.Body).ReadToEndAsync(); 
+            
+            XmlSerializer serializer = new(typeof(ResourceList));
+            ResourceList resourceList = (ResourceList)serializer.Deserialize(new StringReader(bodyString));
+
+            if(resourceList == null) return this.BadRequest();
+
+            string resources = resourceList.Resources
+                .Where(FileHelper.ResourceExists)
+                .Aggregate("", (current, hash) => 
+                    current + LbpSerializer.StringElement("resource", hash));
+
+            return this.Ok(resources);
         }
 
         [HttpGet("r/{hash}")]
diff --git a/ProjectLighthouse/Types/ResourceList.cs b/ProjectLighthouse/Types/ResourceList.cs
new file mode 100644
index 00000000..0f81e905
--- /dev/null
+++ b/ProjectLighthouse/Types/ResourceList.cs
@@ -0,0 +1,9 @@
+using System.Xml.Serialization;
+
+namespace ProjectLighthouse.Types {
+    [XmlRoot("resource"), XmlType("resources")]
+    public class ResourceList {
+        [XmlElement("resource")] 
+        public string[] Resources;
+    }
+}
\ No newline at end of file