Implement searching via categories

backend/LeedsBeerQuest.API/LeedsBeerQuest.API/Controllers/VenueController.cs

@@ -15,9 +15,10 @@ public class VenueController : ControllerBase
     }
 
     [HttpGet]
-    public async Task<IActionResult> GetAll()
+    public async Task<IActionResult> GetVenues([FromQuery] string[]? categories = null, [FromQuery] string[]? tags = null)
     {
-        var venues = await _venueService.GetAllVenues();
+        var venues = await _venueService.GetFilteredVenues(null, categories);
+
         return Ok(venues);
     }
 

backend/LeedsBeerQuest.API/LeedsBeerQuest.API/Data/Services/Interfaces/IVenueService.cs

@@ -6,4 +6,5 @@ public interface IVenueService
 {
     public Task<IEnumerable<Venue>> GetAllVenues();
     public Task<Venue?> GetVenue(int venueId);
+    public Task<IEnumerable<Venue>> GetFilteredVenues(string[]? tags = null, string[]? categories = null);
 }

backend/LeedsBeerQuest.API/LeedsBeerQuest.API/Data/Services/VenueService.cs

@@ -29,4 +29,21 @@ public class VenueService : IVenueService
             .Include(v => v.Tags)
             .SingleOrDefaultAsync(v => v.Id == venueId);
     }
+
+    public async Task<IEnumerable<Venue>> GetFilteredVenues(string[]? tags = null, string[]? categories = null)
+    {
+        var venues = _context.Venues
+            .Include(v => v.Category)
+            .Include(v => v.Tags);
+
+
+        IQueryable<Venue> filteredVenues = venues;
+
+        if (categories is { Length: > 0 })
+        {
+            filteredVenues = venues.Where(v => categories.Contains(v.Category.Name));
+        }
+
+        return await filteredVenues.ToListAsync();
+    }
 }