Add currency to the data returned while getting events

TickAPI/TickAPI.Tests/Events/Utils.cs

@@ -47,8 +47,8 @@ public static GetEventResponseDto CreateSampleEventResponseDto(string name)
             new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc),
             new DateTime(1970, 1, 2, 0, 0, 0, DateTimeKind.Utc),
             18,
-            100,
-            300,
+            new GetEventResponsePriceInfoDto(100, "PLN"),
+            new GetEventResponsePriceInfoDto(300, "PLN"),
             [new GetEventResponseCategoryDto("Test")],
             EventStatus.TicketsAvailable,
             new GetEventResponseAddressDto("United States", "New York", "10001", "Main St", 123, null)

TickAPI/TickAPI/Events/DTOs/Response/GetEventResponseDto.cs

@@ -9,8 +9,8 @@ public record GetEventResponseDto(
     DateTime StartDate,
     DateTime EndDate,
     uint? MinimumAge,
-    decimal MinimumPrice,
-    decimal MaximumPrice,
+    GetEventResponsePriceInfoDto MinimumPrice,
+    GetEventResponsePriceInfoDto MaximumPrice,
     List<GetEventResponseCategoryDto> Categories,
     EventStatus Status,
     GetEventResponseAddressDto Address

TickAPI/TickAPI/Events/DTOs/Response/GetEventResponsePriceInfoDto.cs

@@ -0,0 +1,6 @@
+namespace TickAPI.Events.DTOs.Response;
+
+public record GetEventResponsePriceInfoDto(
+    decimal Price,
+    string Currency
+);

TickAPI/TickAPI/Events/Services/EventService.cs

@@ -193,8 +193,12 @@ private static GetEventResponseDto MapEventToGetEventResponseDto(Event ev)
         var categories = ev.Categories.Count > 0 ? ev.Categories.Select((c) => new GetEventResponseCategoryDto(c.Name)).ToList() : new List<GetEventResponseCategoryDto>(); 
         var address = new GetEventResponseAddressDto(ev.Address.Country, ev.Address.City, ev.Address.PostalCode, ev.Address.Street, ev.Address.HouseNumber, ev.Address.FlatNumber);
 
-        var minimumPrice = ev.TicketTypes.Min(t => t.Price);
-        var maximumPrice = ev.TicketTypes.Max(t => t.Price);
+        // Here we assume that there is at least one ticket type in each event
+        var ttMinimumPrice = ev.TicketTypes.MinBy(t => t.Price)!;
+        var ttMaximumPrice = ev.TicketTypes.MaxBy(t => t.Price)!;
+
+        var minimumPrice = new GetEventResponsePriceInfoDto(ttMinimumPrice.Price, ttMinimumPrice.Currency);
+        var maximumPrice = new GetEventResponsePriceInfoDto(ttMaximumPrice.Price, ttMaximumPrice.Currency);
 
         return new GetEventResponseDto(ev.Id, ev.Name, ev.Description, ev.StartDate, ev.EndDate, ev.MinimumAge, 
             minimumPrice, maximumPrice, categories, ev.EventStatus, address);