package main

import (
	"testing"

	"github.com/google/go-cmp/cmp"
	"github.com/google/go-cmp/cmp/cmpopts"
	"go.opentelemetry.io/contrib/bridges/otelslog"
	"go.opentelemetry.io/otel/attribute"
	"go.opentelemetry.io/otel/log"
	"go.opentelemetry.io/otel/log/logtest"
)

func TestOTelSlog(t *testing.T) {
	rec := logtest.NewRecorder()
	l := otelslog.NewLogger(t.Name(),
		otelslog.WithLoggerProvider(rec),
	)

	l.Info("Ping")
	l.Debug("Pong", "foo", "bar")

	got := rec.Result()

	r1 := log.Record{}
	r1.SetSeverity(log.SeverityInfo)
	r1.SetBody(log.StringValue("Ping"))

	r2 := log.Record{}
	r2.SetSeverity(log.SeverityDebug)
	r2.SetBody(log.StringValue("Pong"))
	r2.AddAttributes(log.String("foo", "bar"))

	want := []*logtest.ScopeRecords{
		{
			Name: t.Name(),
			Records: []logtest.EmittedRecord{
				{Record: r1},
				{Record: r2},
			},
		},
	}

	if diff := cmp.Diff(want, got,
		cmp.Comparer(func(a, b log.Value) bool {
			return a.Equal(b)
		}),
		cmpopts.IgnoreUnexported(logtest.EmittedRecord{}),
		cmpopts.IgnoreFields(log.Record{}, "timestamp"),
		cmp.AllowUnexported(attribute.Set{}, attribute.Distinct{}, log.Record{})); diff != "" {
		t.Errorf("Recorded records mismatch (-want +got):\n%s", diff)
	}
}