using GhostImageManager.Components;
using GhostImageManager.Data;
using GhostImageManager.Models;
using GhostImageManager.Services;
using Microsoft.AspNetCore.Authentication.Cookies;
using Microsoft.EntityFrameworkCore;
using Serilog;

var builder = WebApplication.CreateBuilder(args);

// Logging konfigurieren
var logsDir = Path.Combine(builder.Environment.ContentRootPath, "logs");
if (!Directory.Exists(logsDir))
    Directory.CreateDirectory(logsDir);

Log.Logger = new LoggerConfiguration()
    .MinimumLevel.Information()
    .MinimumLevel.Override("Microsoft", Serilog.Events.LogEventLevel.Warning)
    .MinimumLevel.Override("Microsoft.AspNetCore", Serilog.Events.LogEventLevel.Warning)
    .Enrich.FromLogContext()
    .WriteTo.Console()
    .WriteTo.File(
        Path.Combine(logsDir, "ghost-image-manager-.log"),
        rollingInterval: RollingInterval.Day,
        retainedFileCountLimit: 30,
        outputTemplate: "{Timestamp:yyyy-MM-dd HH:mm:ss.fff zzz} [{Level:u3}] {Message:lj}{NewLine}{Exception}")
    .CreateLogger();

builder.Host.UseSerilog();

// Add services to the container.
builder.Services.AddRazorComponents()
    .AddInteractiveServerComponents();

// Datenbank
var dbPath = Path.Combine(builder.Environment.ContentRootPath, "ghost-image-manager.db");
builder.Services.AddDbContext<AppDbContext>(options =>
    options.UseSqlite($"Data Source={dbPath}"));

builder.Services.Configure<AppSettings>(builder.Configuration.GetSection("AppSettings"));
builder.Services.AddSingleton<GhostConfigService>();
builder.Services.AddScoped<GhostApiService>();
builder.Services.AddScoped<ImageAnalyzerService>();
builder.Services.AddScoped<ImageReplacementService>();
builder.Services.AddScoped<ImageDeletionService>();
builder.Services.AddScoped<ImageExportService>();
builder.Services.AddScoped<ImageDatabaseService>();
builder.Services.AddScoped<ExifService>();
builder.Services.AddScoped<AuthService>();
builder.Services.AddSingleton<LogService>();
builder.Services.AddHttpClient<GhostApiService>();

// Authentication
builder.Services.AddAuthentication(CookieAuthenticationDefaults.AuthenticationScheme)
    .AddCookie(options =>
    {
        options.LoginPath = "/login";
        options.LogoutPath = "/logout";
        options.AccessDeniedPath = "/access-denied";
        options.ExpireTimeSpan = TimeSpan.FromMinutes(480);
        options.SlidingExpiration = true;
    });

builder.Services.AddAuthorization();
builder.Services.AddCascadingAuthenticationState();

// Upload-Limit erhöhen (für Bildtausch)
builder.WebHost.ConfigureKestrel(options =>
{
    options.Limits.MaxRequestBodySize = 104857600; // 100 MB
});

var app = builder.Build();

// Datenbank sicherstellen
using (var scope = app.Services.CreateScope())
{
    var db = scope.ServiceProvider.GetRequiredService<AppDbContext>();
    db.Database.EnsureCreated();
}

// Configure the HTTP request pipeline.
if (!app.Environment.IsDevelopment())
{
    app.UseExceptionHandler("/Error", createScopeForErrors: true);
    app.UseHsts();
}

app.UseHttpsRedirection();

// Standard wwwroot
app.UseStaticFiles();

// Zusätzlich: start.jpg aus dem App-Root ausliefern
var rootImagePath = Path.Combine(app.Environment.ContentRootPath, "start.jpg");
if (File.Exists(rootImagePath))
{
    app.UseStaticFiles(new StaticFileOptions
    {
        FileProvider = new Microsoft.Extensions.FileProviders.PhysicalFileProvider(app.Environment.ContentRootPath),
        RequestPath = "/start-image"
    });
}

app.UseRouting();
app.UseAuthentication();
app.UseAuthorization();
app.UseAntiforgery();

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

// Authentication API endpoints
app.MapPost("/auth/login", async (HttpContext context, AuthService authService, ILogger<Program> logger) =>
{
    var form = await context.Request.ReadFormAsync();
    var password = form["password"].ToString();
    var returnUrl = form["returnUrl"].ToString();

    if (string.IsNullOrEmpty(returnUrl))
        returnUrl = "/";

    try
    {
        logger.LogInformation("Benutzer meldet sich an");
        await authService.SignInAsync(context, password);
        logger.LogInformation("Anmeldung erfolgreich");
        return Results.Redirect(returnUrl);
    }
    catch (UnauthorizedAccessException)
    {
        logger.LogWarning("Fehlgeschlagene Anmeldung");
        return Results.Redirect($"/login?errorMessage={Uri.EscapeDataString("Ungültiges Passwort.")}&returnUrl={Uri.EscapeDataString(returnUrl)}");
    }
});

app.MapPost("/auth/logout", async (HttpContext context, AuthService authService, ILogger<Program> logger) =>
{
    logger.LogInformation("Benutzer meldet sich ab");
    await authService.SignOutAsync(context);
    return Results.Redirect("/login");
});

app.Run();

Log.CloseAndFlush();