package k2v_test

import (
	k2v "code.notaphish.fyi/milas/garage-k2v-go"
	"github.com/stretchr/testify/require"
	"net/http/httptrace"
	"testing"
	"time"
)

func TestClient_PollItem(t *testing.T) {
	t.Parallel()

	f, ctx := newFixture(t)

	pk := randomPk()
	sk := randomSk()

	err := f.cli.InsertItem(ctx, f.bucket, pk, sk, "", []byte("hello1"))
	require.NoError(t, err)

	_, ct, err := f.cli.ReadItemSingle(ctx, f.bucket, pk, sk)

	updateErrCh := make(chan error, 1)
	pollReadyCh := make(chan struct{})
	go func(ct k2v.CausalityToken) {
		defer close(updateErrCh)
		select {
		case <-ctx.Done():
			t.Errorf("Context canceled: %v", ctx.Err())
			return
		case <-pollReadyCh:
			t.Logf("PollItem connected")
		}
		updateErrCh <- f.cli.InsertItem(ctx, f.bucket, pk, sk, ct, []byte("hello2"))
	}(ct)

	trace := &httptrace.ClientTrace{
		WroteRequest: func(_ httptrace.WroteRequestInfo) {
			pollReadyCh <- struct{}{}
		},
	}
	item, ct, err := f.cli.PollItem(httptrace.WithClientTrace(ctx, trace), f.bucket, pk, sk, ct, 5*time.Second)
	require.NoError(t, err)
	require.Equal(t, "hello2", string(item))
	require.NotEmpty(t, ct)
	require.NoError(t, <-updateErrCh)
}

func TestClient_PollItem_Timeout(t *testing.T) {
	if testing.Short() {
		t.Skip("Skipping in short mode: 1 sec minimum to trigger timeout")
		return
	}
	t.Parallel()

	f, ctx := newFixture(t)

	pk := randomPk()
	sk := randomSk()

	err := f.cli.InsertItem(ctx, f.bucket, pk, sk, "", []byte("hello1"))
	require.NoError(t, err)

	_, ct, err := f.cli.ReadItemSingle(ctx, f.bucket, pk, sk)
	item, ct, err := f.cli.PollItem(ctx, f.bucket, pk, sk, ct, 1*time.Second)
	require.ErrorIs(t, err, k2v.NotModifiedTimeoutErr)
	require.Empty(t, item)
}