package libpod

import (
	"github.com/containers/podman/v5/pkg/parallel"
	"os"
	"runtime"
	"strings"

	"github.com/containers/podman/v5/cmd/podman/registry"
	"github.com/containers/podman/v5/pkg/domain/entities"
	"github.com/sirupsen/logrus"
	"github.com/spf13/cobra"
)

var (
	defaultLogLevel = "warn"
	logLevel        = defaultLogLevel
	dockerConfig    = ""
	debug           bool

	noStdout  = false
	useStdout = ""
)

func persistentPreRunE(cmd *cobra.Command, args []string) error {
	logrus.Infof("Called %s.PersistentPreRunE(%s)", cmd.Name(), strings.Join(os.Args, " "))
	podmanConfig := registry.PodmanConfig()
	c := &cobra.Command{}
	if _, err := registry.NewImageEngine(c, args); err != nil {
		return err
	}
	if _, err := registry.NewContainerEngine(c, args); err != nil {
		return err
	}

	if _, ok := os.LookupEnv("TMPDIR"); !ok {
		if tmpdir, err := podmanConfig.ContainersConfDefaultsRO.ImageCopyTmpDir(); err != nil {
			logrus.Warnf("Failed to retrieve default tmp dir: %s", err.Error())
		} else {
			os.Setenv("TMPDIR", tmpdir)
		}
	}

	_, found := c.Annotations[registry.ParentNSRequired]
	if !registry.IsRemote() && !found {
		cgroupMode := ""
		_, noMoveProcess := c.Annotations[registry.NoMoveProcess]
		if flag := c.LocalFlags().Lookup("cgroups"); flag != nil {
			cgroupMode = flag.Value.String()
		}
		err := registry.ContainerEngine().SetupRootless(registry.Context(), noMoveProcess, cgroupMode)
		if err != nil {
			return err
		}
	}
	return nil
}

func setupRuntime(podmanConfig *entities.PodmanConfig) {
	podmanConfig.ContainersConf.Engine.DBBackend = podmanConfig.ContainersConfDefaultsRO.Engine.DBBackend
	podmanConfig.ContainersConf.Engine.CgroupManager = podmanConfig.ContainersConfDefaultsRO.Engine.CgroupManager
	podmanConfig.ContainersConf.Engine.NetworkCmdPath = podmanConfig.ContainersConfDefaultsRO.Engine.NetworkCmdPath
	podmanConfig.ContainersConf.Network.NetworkConfigDir = podmanConfig.ContainersConfDefaultsRO.Network.NetworkConfigDir
	podmanConfig.ContainersConf.Containers.DefaultMountsFile = podmanConfig.ContainersConfDefaultsRO.Containers.DefaultMountsFile
	podmanConfig.ContainersConf.Engine.EventsLogger = podmanConfig.ContainersConfDefaultsRO.Engine.EventsLogger
	podmanConfig.MaxWorks = (runtime.NumCPU() * 3) + 1
	podmanConfig.ContainersConf.Engine.Namespace = podmanConfig.ContainersConfDefaultsRO.Engine.Namespace
	podmanConfig.ContainersConf.Network.NetworkBackend = podmanConfig.ContainersConfDefaultsRO.Network.NetworkBackend
	podmanConfig.RuntimePath = "youki"
	podmanConfig.ContainersConf.Engine.TmpDir = podmanConfig.ContainersConfDefaultsRO.Engine.TmpDir
	podmanConfig.Trace = true
	podmanConfig.ContainersConf.Engine.VolumePath = podmanConfig.ContainersConfDefaultsRO.Engine.VolumePath
	parallel.SetMaxThreads(uint(podmanConfig.MaxWorks))
}