// Package cli builds llmgw's command line surface.
package cli

import (
	"log/slog"

	"github.com/spf13/cobra"

	"gitea.mynodes.xyz/ilker/llmgw/internal/obs"
	"gitea.mynodes.xyz/ilker/llmgw/internal/version"
)

type globalFlags struct {
	logLevel  string
	logFormat string
}

var global globalFlags

// Root returns the root command with all subcommands attached.
func Root() *cobra.Command {
	root := &cobra.Command{
		Use:   "llmgw",
		Short: "LLM gateway for multi-fabric InfiniBand and heterogeneous GPU clusters",
		Long: "llmgw serves LLMs running on your own GPU servers behind a single\n" +
			"OpenAI-compatible endpoint. One binary, different roles per subcommand.",
		Version:       version.Version,
		SilenceUsage:  true,
		SilenceErrors: true,
		PersistentPreRun: func(_ *cobra.Command, _ []string) {
			obs.Setup(obs.Options{Level: global.logLevel, Format: global.logFormat})
		},
		// Bare, in a terminal: the setup screens or the console. Otherwise
		// the help, as before.
		RunE: func(cmd *cobra.Command, _ []string) error {
			if interactive(cmd) {
				return runHome(cmd)
			}
			return cmd.Help()
		},
	}

	pf := root.PersistentFlags()
	pf.StringVar(&global.logLevel, "log-level", "info", "log level: debug|info|warn|error")
	pf.StringVar(&global.logFormat, "log-format", "text", "log format: text|json")

	root.AddCommand(
		newServerCmd(),
		newAgentCmd(),
		newCtlCmd(),
		newTenancyCmd(),
		newUsersCmd(),
		newOrgCmd(),
		newMirrorCmd(),
		newBundleCmd(),
		newSimEngineCmd(),
		newDoctorCmd(),
		newNodeCmd(),
		newSelfUpgradeCmd(),
		newReleaseCmd(),
		newJoinCmd(),
		newFirewallCmd(),
		newWipeCmd(),
		newDocsCmd(),
	)
	return root
}

func logger() *slog.Logger { return slog.Default() }