using System.Net.Http.Json;

namespace EntKube.Web.Components.Provisioning;

/// <summary>
/// BFF proxy endpoints for service provisioning. The Blazor frontend calls these
/// endpoints, and the BFF forwards requests to the Provisioning microservice.
/// </summary>
public static class ServicesProxyEndpoints
{
    public static void Map(IEndpointRouteBuilder app)
    {
        RouteGroupBuilder group = app.MapGroup("/api/services")
            .RequireAuthorization()
            .DisableAntiforgery();

        // GET /api/services — list all services (optionally filtered by clusterId)
        group.MapGet("", async (Guid? clusterId, IHttpClientFactory httpClientFactory, CancellationToken ct) =>
        {
            HttpClient client = httpClientFactory.CreateClient("ProvisioningApi");
            string url = clusterId.HasValue
                ? $"/api/services?clusterId={clusterId.Value}"
                : "/api/services";

            HttpResponseMessage response = await client.GetAsync(url, ct);
            response.EnsureSuccessStatusCode();
            return Results.Stream(await response.Content.ReadAsStreamAsync(ct), "application/json");
        });

        // POST /api/services — provision a new service
        group.MapPost("", async (ProvisionServiceRequest request, IHttpClientFactory httpClientFactory, CancellationToken ct) =>
        {
            HttpClient client = httpClientFactory.CreateClient("ProvisioningApi");
            HttpResponseMessage response = await client.PostAsJsonAsync("/api/services", request, ct);

            if (!response.IsSuccessStatusCode)
            {
                return Results.StatusCode((int)response.StatusCode);
            }

            return Results.Stream(await response.Content.ReadAsStreamAsync(ct), "application/json");
        });

        // POST /api/services/{id}/decommission — request decommissioning
        group.MapPost("{id:guid}/decommission", async (Guid id, IHttpClientFactory httpClientFactory, CancellationToken ct) =>
        {
            HttpClient client = httpClientFactory.CreateClient("ProvisioningApi");
            HttpResponseMessage response = await client.PostAsync($"/api/services/{id}/decommission", null, ct);

            if (!response.IsSuccessStatusCode)
            {
                return Results.StatusCode((int)response.StatusCode);
            }

            return Results.Stream(await response.Content.ReadAsStreamAsync(ct), "application/json");
        });
    }
}

public record ProvisionServiceRequest(Guid ClusterId, string ServiceType, string Name, string Namespace);