package cmd

import (
	"fmt"
	"runtime/debug"

	"github.com/spf13/cobra"
)

var (
	// Version is set via -ldflags during build (for make install)
	// Falls back to module version from go install
	Version = "dev"
	// Commit is set via -ldflags during build
	Commit = "unknown"
	// Date is set via -ldflags during build
	Date = "unknown"
)

var versionCmd = &cobra.Command{
	Use:   "version",
	Short: "Print version information",
	Long:  `Display the version, commit hash, and build date of gitlocal.`,
	Run: func(cmd *cobra.Command, args []string) {
		version := Version
		commit := Commit
		date := Date

		// If installed via 'go install', read version from build info
		if version == "dev" {
			if info, ok := debug.ReadBuildInfo(); ok {
				version = info.Main.Version

				// Extract commit and date from build settings
				for _, setting := range info.Settings {
					switch setting.Key {
					case "vcs.revision":
						if len(setting.Value) > 7 {
							commit = setting.Value[:7]
						} else {
							commit = setting.Value
						}
					case "vcs.time":
						date = setting.Value
					}
				}
			}
		}

		fmt.Printf("gitlocal version %s\n", version)
		fmt.Printf("  Commit: %s\n", commit)
		fmt.Printf("  Built:  %s\n", date)
	},
}

func init() {
	rootCmd.AddCommand(versionCmd)
}