koki-develop/typingo

package cmd

import (
    "fmt"
    "os"
    "runtime/debug"

    "github.com/koki-develop/typingo/internal/game"
    "github.com/spf13/cobra"
)

var (
    version string

    flagNumTexts int
    flagBeep     bool
)

var rootCmd = &cobra.Command{
    Use:   "typingo",
    Short: "Typing game written in Go",
    Args:  cobra.ExactArgs(0),
    RunE: func(cmd *cobra.Command, args []string) error {
        if flagNumTexts < 1 {
            return fmt.Errorf(`invalid argument %d for "-n, --num-texts" flag: must be at least 1`, flagNumTexts)
        }

        m := game.New(&game.Config{
            NumTexts: flagNumTexts,
            Beep:     flagBeep,
        })
        if err := game.Run(m); err != nil {
            return err
        }
        return nil
    },
}

func Execute() {
    err := rootCmd.Execute()
    if err != nil {
        os.Exit(1)
    }
}

func init() {
    if version == "" {
        if info, ok := debug.ReadBuildInfo(); ok {
            version = info.Main.Version
        }
    }

    rootCmd.Version = version

    rootCmd.Flags().IntVarP(&flagNumTexts, "num-texts", "n", 10, "the number of texts")
    rootCmd.Flags().BoolVarP(&flagBeep, "beep", "b", true, "whether to beep when mistaken")
}