using Acl.Application;
using Acl.Infrastructure;

var builder = WebApplication.CreateBuilder(args);

builder.Services.AddSingleton<IClock, SystemClock>();
builder.Services.AddSingleton(sp => sp.GetRequiredService<IConfiguration>()
    .GetSection("Acl:Defaults").Get<AclDefaults>()
    ?? throw new InvalidOperationException("Missing configuration section 'Acl:Defaults'"));
builder.Services.AddSingleton(sp => sp.GetRequiredService<IConfiguration>()
    .GetSection("Acl:OpenZaak").Get<OpenZaakOptions>()
    ?? throw new InvalidOperationException("Missing configuration section 'Acl:OpenZaak'"));
builder.Services.AddHttpClient<IZaakGateway, OpenZaakGateway>();
builder.Services.AddScoped<AclService>();

var app = builder.Build();

app.MapGet("/health", () => "Healthy");

// The ACL's single operation, exposed as a service endpoint.
app.MapPost("/zaken", async (OpenZaakRequest body, AclService acl, CancellationToken ct) =>
{
    var zaakUrl = await acl.OpenZaakAsync(new DomainRegistration(body.Bsn, body.Reference), ct);
    return Results.Ok(new { zaakUrl = zaakUrl.ToString() });
});

// Approve a zaak: set it to its zaaktype's eindstatus (S-09b). The domain hands over only the zaak
// URL; the ACL owns the ZGW statustype resolution (§8.1).
app.MapPost("/statussen", async (SetStatusRequest body, AclService acl, CancellationToken ct) =>
{
    await acl.ApproveZaakAsync(new Uri(body.ZaakUrl), ct);
    return Results.NoContent();
});

// Read a zaak's public-safe reference (its identificatie). The Event Subscriber calls this to enrich
// the read projection without reading ZGW itself (§8.1, #78).
app.MapPost("/zaken/reference", async (ZaakReferenceRequest body, AclService acl, CancellationToken ct) =>
{
    var reference = await acl.GetZaakReferenceAsync(new Uri(body.ZaakUrl), ct);
    return Results.Ok(new { reference });
});

// Store an uploaded diploma against a zaak (S-10b): the domain sends the file as base64; the ACL
// creates the ZGW enkelvoudiginformatieobject and relates it to the zaak (§8.1). Returns its URL.
app.MapPost("/documenten", async (StoreDocumentRequest body, AclService acl, CancellationToken ct) =>
{
    var url = await acl.StoreDiplomaAsync(
        new Uri(body.ZaakUrl), Convert.FromBase64String(body.ContentBase64), body.FileName, body.ContentType, ct);
    return Results.Ok(new { informatieobjectUrl = url.ToString() });
});

app.Run();

public sealed record OpenZaakRequest(string Bsn, string Reference);

public sealed record SetStatusRequest(string ZaakUrl);

public sealed record ZaakReferenceRequest(string ZaakUrl);

public sealed record StoreDocumentRequest(string ZaakUrl, string ContentBase64, string FileName, string ContentType);

public partial class Program;