// Command drover is the entry point for the Discord proxy CLI.
package main

import (
	"fmt"
	"os"

	"github.com/spf13/cobra"
)

// Build-time variables, populated via -ldflags "-X main.Version=... -X main.Commit=... -X main.BuildDate=...".
var (
	Version   = "dev"
	Commit    = "dev"
	BuildDate = "dev"
)

// configPath is the path to the TOML config file, set via the --config global flag.
// Reserved for use in later phases.
var configPath string

func main() {
	if err := newRootCmd().Execute(); err != nil {
		// Cobra already prints the error; just exit non-zero.
		os.Exit(1)
	}
}

func newRootCmd() *cobra.Command {
	root := &cobra.Command{
		Use:           "drover",
		Short:         "Discord proxy via SOCKS5 + WinDivert",
		Version:       fmt.Sprintf("%s (commit %s, built %s)", Version, Commit, BuildDate),
		SilenceUsage:  true,
		SilenceErrors: false,
	}

	// Custom version template: "drover-go vX.Y.Z (commit abc1234, built 2026-05-01)".
	root.SetVersionTemplate(fmt.Sprintf("drover-go v%s (commit %s, built %s)\n", Version, Commit, BuildDate))

	root.PersistentFlags().StringVar(&configPath, "config", "", "path to TOML config file (reserved)")

	root.AddCommand(newCheckCmd())
	root.AddCommand(newUpdateCmd())
	root.AddCommand(newServiceCmd())

	return root
}

func newCheckCmd() *cobra.Command {
	return &cobra.Command{
		Use:   "check",
		Short: "Run the 7-step proxy diagnostic",
		RunE: func(cmd *cobra.Command, args []string) error {
			fmt.Fprintln(cmd.OutOrStdout(), "TODO: 7-step diagnostic")
			return nil
		},
	}
}

func newUpdateCmd() *cobra.Command {
	var checkOnly bool
	cmd := &cobra.Command{
		Use:   "update",
		Short: "Self-update via the Forgejo Releases API",
		RunE: func(cmd *cobra.Command, args []string) error {
			fmt.Fprintln(cmd.OutOrStdout(), "TODO: update check")
			_ = checkOnly // wired up for the upcoming implementation
			return nil
		},
	}
	cmd.Flags().BoolVar(&checkOnly, "check-only", false, "only check for an update, do not apply")
	return cmd
}

func newServiceCmd() *cobra.Command {
	cmd := &cobra.Command{
		Use:   "service",
		Short: "Manage the drover Windows service",
	}
	for _, name := range []string{"install", "uninstall", "start", "stop"} {
		name := name
		cmd.AddCommand(&cobra.Command{
			Use:   name,
			Short: fmt.Sprintf("%s the drover Windows service", name),
			RunE: func(cmd *cobra.Command, args []string) error {
				fmt.Fprintf(cmd.OutOrStdout(), "TODO: service %s\n", name)
				return nil
			},
		})
	}
	return cmd
}