package logging

import (
	"bytes"
	"fmt"
	"log"
	"log/slog"
	"os"
)

func Logging() {
	log.Println("Baby's first log!")

	log.SetFlags(log.LstdFlags | log.Lmicroseconds)
	log.Println("Log with microseconds!")

	log.SetFlags(log.LstdFlags | log.Lshortfile)
	log.Println("Now with filename!")

	mlog := log.New(os.Stdout, "[mlog] ", log.LstdFlags|log.Lshortfile)
	mlog.Println("My own logger!")

	mlog.SetPrefix("[mlog with SetPrefix] ")
	mlog.Println("Changed prefix")

	var logBuffer bytes.Buffer
	buflog := log.New(&logBuffer, "[bytes] ", log.LstdFlags|log.Lshortfile)

	buflog.Println("Writing to a bytes buffer")
	buflog.Println("Writing more to the bytes buffer")

	fmt.Println()
	fmt.Println("Printing logs from bytes buffer below:")
	fmt.Println(logBuffer.String())

	jsonHandler := slog.NewJSONHandler(os.Stderr, nil)
	jlog := slog.New(jsonHandler)
	jlog.Info("First json log entry")
	jlog.Info("kv args", "key1", 1, "key2", 2, "key3", true)
	jlog.Warn("warning!!!")
	jlog.Error("error!!!")
}