refactor: Add support for converting to DATE UTC values for PostgreSQL (#376)

In AlertQueryContext:
-Introduce a custom value converter to ensure the accuracy of DATE and DATE? Types are stored and processed in UTC time.
-Added the ApplyProvierSpecificConfiguration method, specifically designed for configuring value converters for PostgreSQL.

Add two value converters:
-FHIR UttConverter: deals with non empty DATE types.
-NullableFHIR UttConverter: Handling Vacable Dates? Type.

This change ensures that all DATE properties are stored in UTC time when using a PostgreSQL database.

Author: wzh425

src/Infrastructure/Masa.Alert.EntityFrameworkCore/AlertQueryContext.cs

@@ -99,6 +99,30 @@ protected override void OnModelCreatingExecuting(ModelBuilder builder)
             b.ToView(AlertConsts.DB_TABLE_PREFIX + "WebHooks", AlertConsts.DB_SCHEMA);
         });
 
+        // Apply provider-specific configurations
+        ApplyProviderSpecificConfigurations(builder);
+
         base.OnModelCreatingExecuting(builder);
     }
+
+    private void ApplyProviderSpecificConfigurations(ModelBuilder builder)
+    {
+        if (Database.ProviderName == "Npgsql.EntityFrameworkCore.PostgreSQL")
+        {
+            foreach (var entityType in builder.Model.GetEntityTypes())
+            {
+                foreach (var property in entityType.GetProperties())
+                {
+                    if (property.ClrType == typeof(DateTime))
+                    {
+                        property.SetValueConverter(new DateTimeUtcConverter());
+                    }
+                    else if (property.ClrType == typeof(DateTime?))
+                    {
+                        property.SetValueConverter(new NullableDateTimeUtcConverter());
+                    }
+                }
+            }
+        }
+    }
 }

src/Infrastructure/Masa.Alert.EntityFrameworkCore/_Imports.cs

@@ -13,6 +13,7 @@
 global using Masa.Alert.Domain.WebHooks.Aggregates;
 global using Masa.Alert.Domain.WebHooks.Repositories;
 global using Masa.Alert.Infrastructure.EntityFrameworkCore.EntityFrameworkCore.ValueConverters;
+global using Masa.Alert.Infrastructure.EntityFrameworkCore.ValueConverters;
 global using Masa.BuildingBlocks.Data.UoW;
 global using Masa.BuildingBlocks.Data.Contracts;
 global using Masa.Contrib.Ddd.Domain.Repository.EFCore;

src/Infrastructure/Masa.Alert.Infrastructure.EntityFrameworkCore/EntityFrameworkCore/ValueConverters/DateTimeUtcConverter.cs

@@ -0,0 +1,13 @@
+// Copyright (c) MASA Stack All rights reserved.
+// Licensed under the Apache License. See LICENSE.txt in the project root for license information.
+
+namespace Masa.Alert.Infrastructure.EntityFrameworkCore.ValueConverters;
+
+public class DateTimeUtcConverter : ValueConverter<DateTime, DateTime>
+{
+    public DateTimeUtcConverter() : base(
+        v => v.ToUniversalTime(),
+        v => DateTime.SpecifyKind(v, DateTimeKind.Utc))
+    {
+    }
+}

src/Infrastructure/Masa.Alert.Infrastructure.EntityFrameworkCore/EntityFrameworkCore/ValueConverters/NullableDateTimeUtcConverter.cs

@@ -0,0 +1,13 @@
+// Copyright (c) MASA Stack All rights reserved.
+// Licensed under the Apache License. See LICENSE.txt in the project root for license information.
+
+namespace Masa.Alert.Infrastructure.EntityFrameworkCore.ValueConverters;
+
+public class NullableDateTimeUtcConverter : ValueConverter<DateTime?, DateTime?>
+{
+    public NullableDateTimeUtcConverter() : base(
+        v => v.HasValue ? v.Value.Kind == DateTimeKind.Unspecified ? DateTime.SpecifyKind(v.Value, DateTimeKind.Utc).ToUniversalTime() : v.Value.ToUniversalTime() : null,
+        v => v.HasValue ? DateTime.SpecifyKind(v.Value, DateTimeKind.Utc) : null)
+    {
+    }
+}