better ui

YongeStreet/Services/DataService.cs

@@ -4,9 +4,9 @@ namespace YongeStreet.Services;
 
 public record Road(int RelationId, List<List<double>> Points);
 
-public record CityOverview(string Name, double TotalStreetSize, IList<int> AvailableYears);
+public record CityOverview(string Name, double TotalStreetSize, IList<DateOnly> AvailableDates);
 
-public record CityRoadLengthStats(string Name, double MunicipalRoadLength, int Year);
+public record CityRoadLengthStats(string Name, double MunicipalRoadLength, DateOnly Date);
 
 public class DataService
 {
@@ -20,7 +20,7 @@ public class DataService
     "unclassified"];
     private readonly string path = "/home/didier/dev/YongeStreet/real.duckdb";
 
-    public IList<Road> GetRoads(string city, int year)
+    public IList<Road> GetRoads(string city, DateOnly extractDate)
     {
         using var duckDBConnection = new DuckDBConnection($"Data Source={path};ACCESS_MODE=READ_ONLY");
         duckDBConnection.Open();
@@ -34,7 +34,7 @@ public class DataService
                                         AND list_contains($allowed_highway, highway)
                               """;
         command.Parameters.Add(new DuckDBParameter("city_name", city));
-        command.Parameters.Add(new DuckDBParameter("extract_date", new DateOnly(year, 1, 1)));
+        command.Parameters.Add(new DuckDBParameter("extract_date", extractDate));
         command.Parameters.Add(new DuckDBParameter("allowed_highway", CITY_STREET_HIGHWAY));
         using var reader = command.ExecuteReader();
 
@@ -57,7 +57,7 @@ public class DataService
         command.CommandText = """
                                   SELECT city_name, 
                                          SUM(length) FILTER (list_contains($allowed_highway, highway) AND extract_date = (Date '2025-01-01')) AS length,
-                                         LIST(DISTINCT extract('year' FROM extract_date)) AS available_years
+                                         LIST(DISTINCT extract_date) AS available_years
                                   FROM city_road 
                                   GROUP BY city_name
                                   ORDER BY length desc
@@ -70,7 +70,7 @@ public class DataService
         while (reader.Read())
             ret.Add(new CityOverview(reader.GetString(0),
                 reader.GetDouble(1),
-                reader.GetFieldValue<List<int>>(2)));
+                reader.GetFieldValue<List<DateOnly>>(2)));
 
         return ret;
     }
@@ -83,11 +83,11 @@ public class DataService
         using var command = duckDBConnection.CreateCommand();
         command.CommandText = """
                                   SELECT SUM(length) FILTER (list_contains($allowed_highway, highway)) AS length,
-                                         extract('year' FROM extract_date) AS year
+                                         extract_date AS date
                                   FROM city_road 
                                   WHERE city_name = $city_name 
                                   GROUP BY extract_date
-                                  ORDER BY year DESC
+                                  ORDER BY date DESC
                               """;
         command.Parameters.Add(new DuckDBParameter("city_name", city));
         command.Parameters.Add(new DuckDBParameter("allowed_highway", CITY_STREET_HIGHWAY));
@@ -98,7 +98,7 @@ public class DataService
         {
             ret.Add(new CityRoadLengthStats(city, 
                 reader.GetInt32(0), 
-                reader.GetInt32(1)));
+                reader.GetFieldValue<DateOnly>(1)));
         }
 
         return ret;