using MxGateway.Contracts;
using MxGateway.Server.Configuration;
using MxGateway.Server.Diagnostics;
using MxGateway.Server.Metrics;
using MxGateway.Server.Security.Authentication;
using MxGateway.Server.Workers;

namespace MxGateway.Server;

public static class GatewayApplication
{
    public static WebApplication Build(string[] args)
    {
        WebApplicationBuilder builder = CreateBuilder(args);
        WebApplication app = builder.Build();

        app.UseGatewayRequestLoggingScope();
        app.MapGatewayEndpoints();

        return app;
    }

    public static WebApplicationBuilder CreateBuilder(string[] args)
    {
        WebApplicationBuilder builder = WebApplication.CreateBuilder(args);

        builder.Services.AddGatewayConfiguration();
        builder.Services.AddSqliteAuthStore();
        builder.Services.AddHealthChecks();
        builder.Services.AddSingleton<GatewayMetrics>();
        builder.Services.AddWorkerProcessLauncher();

        return builder;
    }

    public static IEndpointRouteBuilder MapGatewayEndpoints(this IEndpointRouteBuilder endpoints)
    {
        endpoints.MapGet("/", () => Results.Redirect("/health/live"));

        endpoints.MapGet(
                "/health/live",
                () => Results.Ok(new GatewayHealthReply(
                    Status: "Healthy",
                    DefaultBackend: GatewayContractInfo.DefaultBackendName,
                    WorkerProtocolVersion: GatewayContractInfo.WorkerProtocolVersion)))
            .WithName("LiveHealth");

        return endpoints;
    }
}