Style: C# 12 Primary constructor

src/Infrastructure/Data/ApplicationDbContextInitializer.cs

@@ -0,0 +1,99 @@
+using Hutopy.Domain.Constants;
+using Hutopy.Domain.Entities;
+using Hutopy.Infrastructure.Identity;
+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Logging;
+
+namespace Hutopy.Infrastructure.Data;
+
+public static class InitializerExtensions
+{
+    public static async Task InitialiseDatabaseAsync(this WebApplication app)
+    {
+        using var scope = app.Services.CreateScope();
+
+        var initializer = scope.ServiceProvider.GetRequiredService<ApplicationDbContextInitializer>();
+
+        await initializer.InitialiseAsync();
+
+        await initializer.SeedAsync();
+    }
+}
+
+public class ApplicationDbContextInitializer(
+    ILogger<ApplicationDbContextInitializer> logger,
+    ApplicationDbContext context,
+    UserManager<ApplicationUser> userManager,
+    RoleManager<IdentityRole> roleManager)
+{
+    public async Task InitialiseAsync()
+    {
+        try
+        {
+            await context.Database.MigrateAsync();
+        }
+        catch (Exception ex)
+        {
+            logger.LogError(ex, "An error occurred while initialising the database.");
+            throw;
+        }
+    }
+
+    public async Task SeedAsync()
+    {
+        try
+        {
+            await TrySeedAsync();
+        }
+        catch (Exception ex)
+        {
+            logger.LogError(ex, "An error occurred while seeding the database.");
+            throw;
+        }
+    }
+
+    private async Task TrySeedAsync()
+    {
+        // Default roles
+        var administratorRole = new IdentityRole(Roles.Administrator);
+
+        if (roleManager.Roles.All(r => r.Name != administratorRole.Name))
+        {
+            await roleManager.CreateAsync(administratorRole);
+        }
+
+        // Default users
+        var administrator = new ApplicationUser { UserName = "administrator@localhost", Email = "administrator@localhost" };
+
+        if (userManager.Users.All(u => u.UserName != administrator.UserName))
+        {
+            await userManager.CreateAsync(administrator, "Administrator1!");
+            if (!string.IsNullOrWhiteSpace(administratorRole.Name))
+            {
+                await userManager.AddToRolesAsync(administrator, new [] { administratorRole.Name });
+            }
+        }
+
+        // Default data
+        // Seed, if necessary
+        if (!context.TodoLists.Any())
+        {
+            context.TodoLists.Add(new TodoList
+            {
+                Title = "Todo List",
+                Items =
+                {
+                    new TodoItem { Title = "Make a todo list 📃" },
+                    new TodoItem { Title = "Check off the first item ✅" },
+                    new TodoItem { Title = "Realise you've already done two things on the list! 🤯"},
+                    new TodoItem { Title = "Reward yourself with a nice, long nap 🏆" },
+                }
+            });
+
+            await context.SaveChangesAsync();
+        }
+    }
+}