package dbx

import (
	"bytes"
	"context"
	"log/slog"
	"strings"
	"testing"
)

func TestSlogLogger(t *testing.T) {
	var buf bytes.Buffer
	h := slog.NewTextHandler(&buf, &slog.HandlerOptions{Level: slog.LevelDebug})
	l := NewSlogLogger(slog.New(h))

	ctx := context.Background()

	l.Debug(ctx, "debug msg", "key", "val1")
	l.Info(ctx, "info msg", "key", "val2")
	l.Warn(ctx, "warn msg", "key", "val3")
	l.Error(ctx, "error msg", "key", "val4")

	out := buf.String()

	for _, want := range []string{
		"level=DEBUG",
		"debug msg",
		"key=val1",
		"level=INFO",
		"info msg",
		"key=val2",
		"level=WARN",
		"warn msg",
		"key=val3",
		"level=ERROR",
		"error msg",
		"key=val4",
	} {
		if !strings.Contains(out, want) {
			t.Errorf("output missing %q\ngot: %s", want, out)
		}
	}
}

func TestNewSlogLoggerNil(t *testing.T) {
	l := NewSlogLogger(nil)
	if l.Logger == nil {
		t.Fatal("expected non-nil logger when passing nil")
	}
	// should not panic
	l.Info(context.Background(), "test")
}