package commands

import (
	"fmt"
	"os/exec"
	"strings"

	"github.com/bwmarrin/discordgo"

	"PermissionGacha/modules/log"
)

var versionString string

func handleVersionCommand(s *discordgo.Session, args []string, m *discordgo.MessageCreate) error {
	if versionString == "" {
		out, err := exec.Command("git", "describe", "--tags").Output()
		if err != nil {
			log.Error(
				s,
				fmt.Errorf("modules/commands: error while requesting version information from git: %v", err),
			)
			versionString = "Error while generating version string."
		} else {
			info := strings.Split(strings.TrimSpace(string(out)), "-")
			if len(info) == 1 {
				versionString = fmt.Sprintf(
					"**VERSION > **Current running version: __%s.0__ (Internal ID: unknown)",
					info[0],
				)
			} else {
				versionString = fmt.Sprintf(
					"**VERSION > **Current running version: __%s.%s__ (Internal ID: %s)",
					info[0], info[1], info[2],
				)
			}
		}
	}
	s.ChannelMessageSend(m.ChannelID, versionString)
	return nil
}