Implement searching slots

ProjectLighthouse/Controllers/SearchController.cs

@@ -0,0 +1,44 @@
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+using ProjectLighthouse.Serialization;
+using ProjectLighthouse.Types;
+
+namespace ProjectLighthouse.Controllers {
+    [ApiController]
+    [Route("LITTLEBIGPLANETPS3_XML/")]
+    [Produces("text/xml")]
+    public class SearchController : ControllerBase {
+        private readonly Database database;
+        public SearchController(Database database) {
+            this.database = database;
+        }
+
+        [HttpGet("slots/search")]
+        public async Task<IActionResult> SearchSlots([FromQuery] string query) {
+            query = query.ToLower();
+
+            string[] keywords = query.Split(" ");
+
+            IQueryable<Slot> dbQuery = this.database.Slots
+                .Include(s => s.Creator)
+                .Include(s => s.Location)
+                .Where(s => s.SlotId >= 0); // dumb query to conv into IQueryable
+            
+            // ReSharper disable once LoopCanBeConvertedToQuery
+            foreach(string keyword in keywords) {
+                dbQuery = dbQuery.Where(s => 
+                    s.Name.ToLower().Contains(keyword) || 
+                    s.Description.ToLower().Contains(keyword)
+                );
+            }
+
+            List<Slot> slots = await dbQuery.ToListAsync();
+            string response = slots.Aggregate("", (current, slot) => current + slot.Serialize());
+
+            return this.Ok(LbpSerializer.StringElement("slots", response));
+        }
+    }
+}