//go:build integration

// Live integration against public Quicknet relays (plan §7.8), run nightly:
//
//	go test -tags integration ./capsule ./provider/drand
package capsule_test

import (
	"bytes"
	"context"
	"errors"
	"testing"
	"time"

	"filippo.io/age"

	datekeys "g.activething.com/go/DateKeys"
	"g.activething.com/go/DateKeys/capsule"
	"g.activething.com/go/DateKeys/profile"
	"g.activething.com/go/DateKeys/provider/drand"
)

// Encrypt to now + 30 s, check that the capsule stays locked without any
// request, wait, and open it with a release fetched from real relays.
func TestLiveLifecycle(t *testing.T) {
	p := profile.Quicknet()
	reg, err := profile.Default()
	if err != nil {
		t.Fatal(err)
	}
	holder, _ := age.GenerateX25519Identity()
	for _, policy := range []capsule.Policy{capsule.TimeOnly, capsule.TimeAndKey} {
		t.Run(policy.String(), func(t *testing.T) {
			unlock := time.Now().Add(30 * time.Second)
			opts := capsule.EncryptOptions{Profile: p, UnlockAt: unlock, Policy: policy, Now: time.Now}
			if policy == capsule.TimeAndKey {
				opts.Recipients = []age.Recipient{holder.Recipient()}
			}
			const msg = "DateKeys live integration: this stays on the local machine."
			var dkc bytes.Buffer
			res, err := capsule.EncryptFiles(&dkc, []capsule.Source{source("live.txt", msg)}, opts)
			if err != nil {
				t.Fatal(err)
			}
			files := &memorySink{}
			o := capsule.OpenOptions{Registry: reg, Source: drand.New(), Now: time.Now, Identities: []age.Identity{holder}, Sink: files}
			if _, err := capsule.Open(context.Background(), nil, bytes.NewReader(dkc.Bytes()), o); !errors.Is(err, datekeys.ErrReleaseUnavailable) {
				t.Fatalf("opened before the round: %v", err)
			}
			t.Logf("locked for round %d until %s", res.DateKey.Round, res.UnlockAt.Format(time.RFC3339))
			time.Sleep(time.Until(res.UnlockAt) + 2*time.Second)
			deadline := time.Now().Add(30 * time.Second)
			for {
				_, err = capsule.Open(context.Background(), nil, bytes.NewReader(dkc.Bytes()), o)
				if err == nil || !errors.Is(err, datekeys.ErrReleaseUnavailable) || time.Now().After(deadline) {
					break
				}
				time.Sleep(time.Second)
			}
			if err != nil || len(files.files) != 1 || files.files[0].String() != msg {
				t.Fatalf("open after the round: %v", err)
			}
		})
	}
}