using AuthorBuddy.Web.Components;
using AuthorBuddy.Web.Data;
using AuthorBuddy.Web.Models;
using AuthorBuddy.Web.Services;
using LiteDB;
using Microsoft.AspNetCore.Authentication.Cookies;
using Microsoft.AspNetCore.Components.Authorization;
using Microsoft.Extensions.FileProviders;

var builder = WebApplication.CreateBuilder(args);

builder.WebHost.UseWebRoot(Path.Combine(builder.Environment.ContentRootPath, "wwwroot"));

builder.Services.AddRazorComponents()
    .AddInteractiveServerComponents();

var dbDir = OperatingSystem.IsLinux()
    ? Path.Combine(
        Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData),
        "author-buddy")
    : AppContext.BaseDirectory;
Directory.CreateDirectory(dbDir);
var dbPath = Path.Combine(dbDir, Constants.DbFile);
var db = new LiteDatabase($"Filename={dbPath};Connection=direct");
MigrateUserRoles(db);
builder.Services.AddSingleton<ILiteDatabase>(db);

builder.Services.AddSingleton<OllamaSettings>();
builder.Services.AddSingleton<IOllamaService, OllamaService>();
builder.Services.AddSingleton<ILLMBackend, OllamaBackend>();
builder.Services.AddSingleton<ILLMBackend, LlamaCppBackend>();
builder.Services.AddSingleton<IOllamaSetupService, OllamaSetupService>();
builder.Services.AddSingleton<IFileScannerService, FileScannerService>();
builder.Services.AddScoped<ISettingsService, SettingsService>();
builder.Services.AddScoped<IThemeService, ThemeService>();
builder.Services.AddSingleton<IProjectService, ProjectService>();
builder.Services.AddSingleton<IExportService, ExportService>();
builder.Services.AddSingleton<IRagService, RagService>();
builder.Services.AddSingleton<IWikipediaService, WikipediaService>();
builder.Services.AddSingleton<OperationState>();
builder.Services.AddSingleton<IDbAdminService, DbAdminService>();
builder.Services.AddScoped<IAuthService, AuthService>();
builder.Services.AddSingleton<IEmailService, EmailService>();
builder.Services.AddSingleton<IChatService, ChatService>();
builder.Services.AddSingleton<IQuickMarkdownService, QuickMarkdownService>();

var smtpSettings = new SmtpSettings();
builder.Configuration.GetSection("Smtp").Bind(smtpSettings);
builder.Services.AddSingleton(smtpSettings);
builder.Services.AddScoped<ILocalizationService, LocalizationService>();
builder.Services.AddScoped<CustomAuthStateProvider>();
builder.Services.AddScoped<AuthenticationStateProvider>(sp =>
    sp.GetRequiredService<CustomAuthStateProvider>());
builder.Services.AddAuthorizationCore();
builder.Services.AddAuthentication(CookieAuthenticationDefaults.AuthenticationScheme)
    .AddCookie(options =>
    {
        options.LoginPath = "/login";
        options.Cookie.HttpOnly = true;
        options.ExpireTimeSpan = TimeSpan.FromDays(30);
    });

var app = builder.Build();


if (!app.Environment.IsDevelopment())
{
    app.UseExceptionHandler("/Error", createScopeForErrors: true);
}




app.UseStatusCodePagesWithReExecute("/not-found", createScopeForStatusCodePages: true);
app.UseAntiforgery();

var assetsDir = Path.Combine(app.Environment.ContentRootPath, "Assets");
if (Directory.Exists(assetsDir))
{
    app.UseStaticFiles(new StaticFileOptions
    {
        FileProvider = new PhysicalFileProvider(assetsDir),
        RequestPath = "/Assets"
    });
}

app.MapStaticAssets();
app.MapRazorComponents<App>()
    .AddInteractiveServerRenderMode();

app.Run();

static void MigrateUserRoles(ILiteDatabase db)
{
    var col = db.GetCollection("users");
    var docs = col.FindAll().ToList();
    foreach (var doc in docs)
    {
        if (doc.ContainsKey("Role") && !doc.ContainsKey("Roles"))
        {
            var oldRole = (Int32)UserRole.Administrator;
            doc.Remove("Role");
            doc["Roles"] = new BsonArray { new BsonValue(oldRole) };
            col.Update(doc);
        }
        else if (!doc.ContainsKey("Roles") && !doc.ContainsKey("Role"))
        {
            doc["Roles"] = new BsonArray { new BsonValue(0) };
            col.Update(doc);
        }
    }
}