using Microsoft.AspNetCore.Authentication.Cookies;
using Microsoft.AspNetCore.Mvc;

var builder = WebApplication.CreateBuilder(args);

builder.Configuration.AddEnvironmentVariables();

builder.Services.AddRazorComponents();
builder.Services.AddCascadingAuthenticationState();

builder.Services.AddAuthentication("Krant").AddCookie("Krant", options =>
{
    options.Cookie.Name = "ProostenKrant";
    options.Cookie.HttpOnly = true;
    options.Cookie.SameSite = SameSiteMode.Lax;
    options.Cookie.IsEssential = true;
    options.Cookie.Path = "/";
    options.LoginPath = "/login";
    options.AccessDeniedPath = "/";
    options.ExpireTimeSpan = TimeSpan.FromDays(30);
    options.SlidingExpiration = true;
});

builder.Services.AddAuthorization(options =>
{
    options.AddPolicy("Editor", policy => policy.RequireClaim("uid"));
});

builder.Services.AddAntiforgery();

builder.Services.AddSingleton<ProostenKrant.Services.Db>();
builder.Services.AddScoped<ProostenKrant.Services.UserService>();
builder.Services.AddScoped<ProostenKrant.Services.SeasonService>();
builder.Services.AddScoped<ProostenKrant.Services.ArticleService>();
builder.Services.AddScoped<ProostenKrant.Services.LatexService>();
builder.Services.AddScoped<ProostenKrant.Services.UploadService>();
builder.Services.AddScoped<ProostenKrant.Services.KrantInfo>();

var app = builder.Build();

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

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

app.MapRazorComponents<ProostenKrant.Components.App>();

// Krant drukken (LaTeX-compilatie). [FromForm] activeert automatische
// antiforgery-validatie; RequireAuthorization vereist een redactie-cookie.
app.MapPost("/api/genereer-pdf",
    async ([FromForm] int? SeizoenId, ProostenKrant.Services.LatexService latex) =>
{
    var result = await latex.GeneratePdfAsync(SeizoenId);
    var target = result.Success
        ? $"/seizoenen?melding={Uri.EscapeDataString("De editie is succesvol gedrukt.")}&pdf={Uri.EscapeDataString(result.FileName!)}"
        : $"/seizoenen?fout={Uri.EscapeDataString(result.Error ?? "onbekende fout")}";
    return Results.Redirect(target);
}).RequireAuthorization("Editor");

app.MapGet("/edities/{bestand}", (string bestand) =>
{
    var safe = Path.GetFileName(bestand);
    if (!safe.EndsWith(".pdf", StringComparison.OrdinalIgnoreCase))
    {
        return Results.NotFound();
    }
    var dirs = new[]
    {
        Path.Combine(app.Environment.ContentRootPath, app.Configuration["Paths:LatexOutput"] ?? "storage/latex"),
        Path.Combine(app.Environment.ContentRootPath, app.Configuration["Paths:StaticArchive"] ?? "archive"),
    };
    var path = dirs.Select(d => Path.Combine(d, safe)).FirstOrDefault(File.Exists);
    return path is null ? Results.NotFound() : Results.File(path, "application/pdf", safe);
});

app.Run();