package cmd

import (
	"context"
	"log/slog"

	"code.icb4dc0.de/buildr/buildr/internal/rpc"
	"code.icb4dc0.de/buildr/buildr/internal/services"
)

var _ ServerCommander = (*ServerApp)(nil)

func NewServerApp(initializer LevelInitializer, accessor services.TypeRegistryAccessor) *ServerApp {
	return &ServerApp{
		initializer: initializer,
		accessor:    accessor,
	}
}

type ServerApp struct {
	initializer LevelInitializer
	accessor    services.TypeRegistryAccessor
}

func (s *ServerApp) ServeAPI(ctx context.Context, cfg *rpc.GrpcConfig) error {
	if err := s.initializer.InitAt(ctx, InitLevelBasic); err != nil {
		return err
	}

	logger := slog.Default()

	logger.Info("Starting gRPC server", slog.Group("grpc", slog.String("addr", cfg.Host.Address)))

	grpcServer := rpc.NewServer(logger, s.accessor)

	go func() {
		if err := grpcServer.Start(ctx, cfg.Host.Address); err != nil {
			slog.Error("Error occurred while serving gRPC API", slog.String("err", err.Error()))
		}
	}()

	<-ctx.Done()

	grpcServer.Close()

	return nil
}