pure sql baybeee

Server/Services/LapTimesService.cs

@@ -0,0 +1,43 @@
+using Microsoft.EntityFrameworkCore;
+
+using SpaceRace.Shared;
+
+namespace Server.Services;
+
+public class LapTimesService {
+    private readonly ILogger<LapTimesService> _logger;
+    private SpaceRaceDbContext _db;
+
+    public LapTimesService(ILogger<LapTimesService> logger, SpaceRaceDbContext db) {
+        _logger = logger;
+        _db = db;
+    }
+
+    public LapTimesDTO LapTimes(Guid userId, string mapName) {
+        PbDTO pb = _db.PbDTO
+            .FromSql($$"""
+                WITH ranked AS (
+                    SELECT *, rank() OVER (ORDER BY "Time" ASC) AS "Position", COUNT("Id") OVER () AS "Completions"
+                    FROM "Laps"
+                    WHERE "Map" = {{mapName}}
+                    ORDER BY "Position" ASC
+                )
+
+                SELECT * FROM ranked
+                WHERE "UserId" = {{userId}}
+                """).FirstOrDefault();
+
+        PbDTO lapRecord = _db.PbDTO
+            .FromSql($$"""
+                SELECT *, rank() OVER (ORDER BY "Time" ASC) AS "Position", COUNT("Id") OVER () AS "Completions"
+                FROM "Laps"
+                WHERE "Map" = {{mapName}}
+                ORDER BY "Position" ASC
+                """).FirstOrDefault();
+
+        return new LapTimesDTO {
+            Pb = pb,
+            LapRecord = lapRecord,
+        };
+    }
+}