Refactor: cleanup

- Introduce tracing
- Introduce cobra / viper framework
- Introduce resty client
- Seperate files in api/ and bot/
- Trim unused functions

main.go

@@ -2,47 +2,76 @@ package main
 
 import (
 	"fmt"
-	"log"
 	"os"
 	"os/signal"
+	"strings"
 	"syscall"
 
 	"github.com/Penguin-71630/meme-bot-frontend-dc/bot"
-	"github.com/Penguin-71630/meme-bot-frontend-dc/config"
-	"github.com/joho/godotenv"
+	"github.com/Penguin-71630/meme-bot-frontend-dc/tracing"
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+	"go.uber.org/zap"
 )
 
-func main() {
-	// Load environment variables
-	if err := godotenv.Load(); err != nil {
-		log.Println("No .env file found, using system environment variables")
-	}
+var rootCmd = &cobra.Command{
+	Use: "dcbot",
+	PersistentPreRun: func(cmd *cobra.Command, args []string) {
+		viper.AutomaticEnv()
+		viper.SetEnvKeyReplacer(strings.NewReplacer("-", "_"))
+		viper.BindPFlags(cmd.PersistentFlags())
+		viper.BindPFlags(cmd.Flags())
+	},
+	Run: func(cmd *cobra.Command, args []string) {
+		ctx := cmd.Context()
 
-	// Load configuration
-	cfg, err := config.Load()
-	if err != nil {
-		log.Fatalf("Failed to load configuration: %v", err)
-	}
+		appname := "go2025-dcbot"
+		tracing.InitTracer(appname)
+		if viper.GetString("uptrace-dsn") != "" {
+			tracing.InitUptrace(appname)
+			defer tracing.DeferUptrace(ctx)
+		}
 
-	// Initialize bot
-	discordBot, err := bot.New(cfg)
-	if err != nil {
-		log.Fatalf("Failed to create bot: %v", err)
-	}
+		// Initialize bot
+		discordBot, err := bot.New()
+		if err != nil {
+			tracing.Logger.Ctx(ctx).
+				Panic("failed to create bot",
+					zap.Error(err))
+			panic(err)
+		}
 
-	// Start bot
-	if err := discordBot.Start(); err != nil {
-		log.Fatalf("Failed to start bot: %v", err)
-	}
+		// Start bot
+		if err := discordBot.Start(); err != nil {
+			tracing.Logger.Ctx(ctx).
+				Panic("failed to start bot",
+					zap.Error(err))
+			panic(err)
+		}
+		fmt.Println("Bot is now running. Press CTRL-C to exit.")
+		defer discordBot.Stop()
 
-	fmt.Println("Bot is now running. Press CTRL-C to exit.")
-
-	// Wait for interrupt signal
-	sc := make(chan os.Signal, 1)
-	signal.Notify(sc, syscall.SIGINT, syscall.SIGTERM, os.Interrupt)
-	<-sc
-
-	// Cleanup
-	discordBot.Stop()
-	fmt.Println("Bot stopped gracefully.")
+		// Wait for interrupt signal
+		sc := make(chan os.Signal, 1)
+		signal.Notify(sc,
+			syscall.SIGINT, syscall.SIGTERM, os.Interrupt)
+		<-sc
+	},
+}
+
+func init() {
+	cobra.EnableTraverseRunHooks = true
+	rootCmd.Flags().
+		String("discord-bot-token", "", "discord bot token")
+	rootCmd.Flags().
+		String("api-endpoint", "http://localhost:8080", "api endpoint")
+
+	rootCmd.Flags().
+		Bool("zap-production", true, "Toggle production log format")
+	rootCmd.Flags().
+		String("uptrace-dsn", "", "Uptrace DSN (disabled by default)")
+}
+
+func main() {
+	rootCmd.Execute()
 }