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feat: add application preloader, identity roles, and resilient database initialization with automated seeding

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This commit is contained in:
Marek Jaisński
2026-05-01 09:07:26 +02:00
parent 0210611edf
commit 47bffd629f
11 changed files with 262 additions and 21 deletions
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scratch/check_db.cs
+44
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@@ -0,0 +1,44 @@
using Microsoft.Extensions.DependencyInjection;
using Microsoft.EntityFrameworkCore;
using NexusReader.Infrastructure.Persistence;
using Microsoft.Extensions.Configuration;
using NexusReader.Domain.Entities;
using System;
using System.Linq;
using System.Threading.Tasks;
var configuration = new ConfigurationBuilder()
.AddJsonFile("src/NexusReader.Web.New/appsettings.json")
.Build();
var services = new ServiceCollection();
var pgConnectionString = configuration.GetConnectionString("PostgresConnection");
if (!string.IsNullOrEmpty(pgConnectionString))
{
services.AddDbContext<AppDbContext>(options => options.UseNpgsql(pgConnectionString));
}
else
{
services.AddDbContext<AppDbContext>(options => options.UseSqlite(configuration.GetConnectionString("SqliteConnection")));
}
var serviceProvider = services.BuildServiceProvider();
using var scope = serviceProvider.CreateScope();
var dbContext = scope.ServiceProvider.GetRequiredService<AppDbContext>();
try
{
var user = await dbContext.Users.FirstOrDefaultAsync(u => u.Email == "admin@nexus.com");
if (user == null)
{
Console.WriteLine("User admin@nexus.com NOT FOUND in database.");
}
else
{
Console.WriteLine($"User found: {user.Email}, Id: {user.Id}, EmailConfirmed: {user.EmailConfirmed}");
}
}
catch (Exception ex)
{
Console.WriteLine($"Error accessing database: {ex.Message}");
}
src/NexusReader.Infrastructure/Persistence/DbInitializer.cs
+72
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@@ -0,0 +1,72 @@
using Microsoft.AspNetCore.Identity;
using Microsoft.Extensions.DependencyInjection;
using NexusReader.Domain.Entities;
using System;
using System.Linq;
using System.Threading.Tasks;
namespace NexusReader.Infrastructure.Persistence;
public static class DbInitializer
{
public static async Task SeedAsync(IServiceProvider serviceProvider)
{
using var scope = serviceProvider.CreateScope();
var userManager = scope.ServiceProvider.GetRequiredService<UserManager<NexusUser>>();
var roleManager = scope.ServiceProvider.GetRequiredService<RoleManager<IdentityRole>>();
try
{
Console.WriteLine("[Seeder] Starting database seeding...");
// Seed Roles
string[] roleNames = { "Admin", "User" };
foreach (var roleName in roleNames)
{
var roleExist = await roleManager.RoleExistsAsync(roleName);
if (!roleExist)
{
await roleManager.CreateAsync(new IdentityRole(roleName));
Console.WriteLine($"[Seeder] Created role: {roleName}");
}
}
// Seed Admin User
var adminEmail = "admin@nexus.com";
var adminUser = await userManager.FindByEmailAsync(adminEmail);
if (adminUser == null)
{
adminUser = new NexusUser
{
UserName = adminEmail,
Email = adminEmail,
EmailConfirmed = true,
CurrentPlan = "Enterprise",
AITokenLimit = 1000000,
TenantId = Guid.NewGuid()
};
var createPowerUser = await userManager.CreateAsync(adminUser, "Admin123!");
if (createPowerUser.Succeeded)
{
await userManager.AddToRoleAsync(adminUser, "Admin");
Console.WriteLine($"[Seeder] Admin user created successfully: {adminEmail}");
}
else
{
var errors = string.Join(", ", createPowerUser.Errors.Select(e => e.Description));
Console.WriteLine($"[Seeder] Failed to create admin user: {errors}");
}
}
else
{
Console.WriteLine("[Seeder] Admin user already exists.");
}
}
catch (Exception ex)
{
Console.WriteLine($"[Seeder] Critical error during seeding: {ex.Message}");
}
}
}
src/NexusReader.Maui/Main.razor
+5 -1
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@@ -3,7 +3,11 @@
<Router AppAssembly="@typeof(NexusReader.UI.Shared._Imports).Assembly">
<Found Context="routeData">
<RouteView RouteData="@routeData" DefaultLayout="@typeof(NexusReader.UI.Shared.Layout.MainLayout)" />
<AuthorizeRouteView RouteData="@routeData" DefaultLayout="@typeof(NexusReader.UI.Shared.Layout.MainLayout)">
<NotAuthorized>
<RedirectToLogin />
</NotAuthorized>
</AuthorizeRouteView>
<FocusOnNavigate RouteData="@routeData" Selector="h1" />
</Found>
<NotFound>
src/NexusReader.Maui/wwwroot/index.html
+6 -1
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@@ -11,7 +11,12 @@
<body>
<div id="app">Loading...</div>
<div id="app">
<div id="app-preloader">
<div class="preloader-spinner"></div>
<div class="preloader-text">Nexus Reader</div>
</div>
</div>
<div id="blazor-error-ui">
An unhandled error has occurred.
src/NexusReader.UI.Shared/Layout/MainLayout.razor
+22 -13
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@@ -11,18 +11,18 @@
@inject NavigationManager NavigationManager
@implements IDisposable
<div class="app-container @_platformClass @(FocusMode.IsFocusModeActive ? "focus-mode-active" : "")">
<div class="reader-pane">
<main>
@Body
</main>
<ReaderFooter />
</div>
<AuthorizeView>
<Authorized>
<div class="app-container @_platformClass @(FocusMode.IsFocusModeActive ? "focus-mode-active" : "")">
<div class="reader-pane">
<main>
@Body
</main>
<ReaderFooter />
</div>
<div class="resizer" id="sidebar-resizer"></div>
<div class="resizer" id="sidebar-resizer"></div>
<AuthorizeView>
<Authorized>
<div class="intelligence-sidebar">
<IntelligenceToolbar />
<div class="intelligence-content">
@@ -46,9 +46,18 @@
</div>
</div>
</div>
</Authorized>
</AuthorizeView>
</div>
</div>
</Authorized>
<Authorizing>
<div class="app-preloader">
<div class="preloader-spinner"></div>
<div class="preloader-text">Weryfikacja...</div>
</div>
</Authorizing>
<NotAuthorized>
@Body
</NotAuthorized>
</AuthorizeView>
<div id="blazor-error-ui" data-nosnippet>
An unhandled error has occurred.
src/NexusReader.UI.Shared/wwwroot/app.css
+54 -1
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@@ -99,4 +99,57 @@ h1:focus {
color: white;
margin: 1rem;
border-radius: 8px;
}
}
/* Preloader Styles */
#app-preloader, .app-preloader {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: radial-gradient(circle at center, #1a1a1a 0%, var(--nexus-bg) 100%);
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
z-index: 9999;
transition: opacity 0.8s ease, visibility 0.8s;
}
#app-preloader.loaded {
opacity: 0;
visibility: hidden;
}
.preloader-spinner {
width: 80px;
height: 80px;
border: 3px solid rgba(0, 255, 153, 0.1);
border-top: 3px solid var(--nexus-neon);
border-radius: 50%;
animation: spin 1s cubic-bezier(0.4, 0, 0.2, 1) infinite;
filter: drop-shadow(0 0 10px var(--nexus-neon));
margin-bottom: 20px;
}
.preloader-text {
color: var(--nexus-neon);
font-family: var(--nexus-font-sans);
letter-spacing: 4px;
text-transform: uppercase;
font-size: 0.8rem;
font-weight: 500;
animation: pulse 2s infinite;
}
@keyframes spin {
0% { transform: rotate(0deg); }
100% { transform: rotate(360deg); }
}
@keyframes pulse {
0%, 100% { opacity: 1; transform: scale(1); }
50% { opacity: 0.5; transform: scale(0.95); }
}
src/NexusReader.Web.New/Components/App.razor
+26 -1
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@@ -5,7 +5,6 @@
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<base href="/" />
<ResourcePreloader />
<link rel="stylesheet" href="_content/NexusReader.UI.Shared/app.css" />
<link rel="stylesheet" href="NexusReader.Web.styles.css" />
<ImportMap />
@@ -14,9 +13,35 @@
</head>
<body>
<div id="app-preloader">
<div class="preloader-spinner"></div>
<div class="preloader-text">Nexus Reader</div>
</div>
<NexusReader.UI.Shared.Routes @rendermode="InteractiveAuto" />
<ReconnectModal />
<script src="_framework/blazor.web.js"></script>
<script>
(function() {
function hidePreloader() {
const preloader = document.getElementById('app-preloader');
if (preloader) {
preloader.classList.add('loaded');
// Completely remove from DOM after transition for better accessibility
setTimeout(() => preloader.style.display = 'none', 1000);
}
}
if (document.readyState === 'complete') {
hidePreloader();
} else {
window.addEventListener('load', hidePreloader);
}
// Fallback: If for some reason 'load' doesn't fire (e.g. big assets), hide after 3s anyway
setTimeout(hidePreloader, 3000);
})();
</script>
</body>
src/NexusReader.Web.New/Program.cs
+31 -3
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@@ -81,6 +81,7 @@ builder.Services.AddAuthentication(options =>
});
builder.Services.AddIdentityApiEndpoints<NexusUser>()
.AddRoles<IdentityRole>()
.AddEntityFrameworkStores<AppDbContext>();
builder.Services.ConfigureApplicationCookie(options =>
@@ -113,11 +114,38 @@ builder.Services.Configure<IdentityOptions>(options =>
var app = builder.Build();
// Ensure Database is initialized
// Ensure Database is initialized and seeded
using (var scope = app.Services.CreateScope())
{
var dbContext = scope.ServiceProvider.GetRequiredService<NexusReader.Infrastructure.Persistence.AppDbContext>();
await dbContext.Database.MigrateAsync();
var services = scope.ServiceProvider;
var logger = services.GetRequiredService<ILogger<Program>>();
var dbContext = services.GetRequiredService<NexusReader.Infrastructure.Persistence.AppDbContext>();
int maxRetries = 5;
int delayMs = 2000;
for (int i = 0; i < maxRetries; i++)
{
try
{
logger.LogInformation("Próba połączenia z bazą danych (próba {Attempt}/{MaxRetries})...", i + 1, maxRetries);
await dbContext.Database.MigrateAsync();
await DbInitializer.SeedAsync(services);
logger.LogInformation("Baza danych zainicjowana pomyślnie.");
break;
}
catch (Npgsql.NpgsqlException ex) when (i < maxRetries - 1)
{
logger.LogWarning("Błąd połączenia z bazą danych: {Message}. Ponowna próba za {Delay}ms...", ex.Message, delayMs);
await Task.Delay(delayMs);
delayMs *= 2; // Exponential backoff
}
catch (Exception ex)
{
logger.LogCritical(ex, "Krytyczny błąd podczas inicjalizacji bazy danych.");
throw;
}
}
}
// Configure the HTTP request pipeline.
src/NexusReader.Web.New/appsettings.json
+2 -1
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@@ -26,5 +26,6 @@
"Model": "gemini-2.5-flash-lite",
"MaxOutputTokens": 8192
}
}
},
"ApiBaseUrl": "http://localhost:5000"
}
src/NexusReader.Web.New/nexus.db-shm
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src/NexusReader.Web.New/nexus.db-wal
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