Add basic structure

main.go

@@ -1,38 +1,88 @@
-import (
-    "context"
-    "fmt"
+package main
 
-    "github.com/redis/go-redis/v9"
+import (
+	"context"
+	"fmt"
+	"io"
+	"log"
+	"os"
+	"strings"
+
+	_ "embed"
+
+	"github.com/joho/godotenv"
+	"github.com/redis/go-redis/v9"
 )
 
+var Error *log.Logger
+var Warning *log.Logger
+
+func init() {
+	log.SetFlags(log.Lmicroseconds | log.Lshortfile)
+	logFile, err := os.Create("main.log")
+	if err != nil {
+		log.Printf("Error creating log file: %v", err)
+		return
+	}
+	logger := io.MultiWriter(os.Stdout, logFile)
+	log.SetOutput(logger)
+
+	Error = log.New(io.MultiWriter(logFile, os.Stderr, os.Stdout),
+		fmt.Sprintf("%sERROR:%s ", "\033[0;101m", "\033[0m"),
+		log.Lmicroseconds|log.Lshortfile)
+	Warning = log.New(io.MultiWriter(logFile, os.Stdout),
+		fmt.Sprintf("%sWarning:%s ", "\033[0;93m", "\033[0m"),
+		log.Lmicroseconds|log.Lshortfile)
+}
+
+//go:embed .env
+var env string
+
 var ctx = context.Background()
 
-func ExampleClient() {
-    rdb := redis.NewClient(&redis.Options{
-        Addr:     "localhost:6379",
-        Password: "", // no password set
-        DB:       0,  // use default DB
-    })
+func main() {
+	envvar, err := godotenv.Parse(strings.NewReader(env))
+	if err != nil {
+		Error.Fatalf("Error parsing .env file: %v", err)
+		os.Exit(1)
+	}
 
-    err := rdb.Set(ctx, "key", "value", 0).Err()
-    if err != nil {
-        panic(err)
-    }
+	redisHost, ok := envvar["REDIS_HOST"]
+	if !ok {
+		Error.Fatalf("REDIS_HOST not set in .env file")
+		return
+	}
+	redisPassword, ok := envvar["REDIS_PASSWORD"]
+	if !ok {
+		Error.Fatalf("REDIS_PASSWORD not set in .env file")
+		return
+	}
 
-    val, err := rdb.Get(ctx, "key").Result()
-    if err != nil {
-        panic(err)
-    }
-    fmt.Println("key", val)
+	rdb := redis.NewClient(&redis.Options{
+		Addr:     redisHost,
+		Password: redisPassword,
+		DB:       0,
+	})
 
-    val2, err := rdb.Get(ctx, "key2").Result()
-    if err == redis.Nil {
-        fmt.Println("key2 does not exist")
-    } else if err != nil {
-        panic(err)
-    } else {
-        fmt.Println("key2", val2)
-    }
-    // Output: key value
-    // key2 does not exist
-}
+	err = rdb.Set(ctx, "key", "value", 0).Err()
+	if err != nil {
+		panic(err)
+	}
+
+	val, err := rdb.Get(ctx, "key").Result()
+	if err != nil {
+		panic(err)
+	}
+	fmt.Println("key", val)
+
+	val2, err := rdb.Get(ctx, "key2").Result()
+	if err == redis.Nil {
+		fmt.Println("key2 does not exist")
+	} else if err != nil {
+		panic(err)
+	} else {
+		fmt.Println("key2", val2)
+	}
+	// Output: key value
+	// key2 does not exist
+}