package store

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

	"yovision/sense/internal/auditrelay"
)

func TestPostgresAuditRelayClaimUsesFencing(t *testing.T) {
	repository, admin := openPostgresTestStore(t)
	ctx := context.Background()
	if err := repository.AuditRelayReady(ctx); err != nil {
		t.Fatal(err)
	}
	insertBellSite(t, admin, "relay-tenant", "relay-site", 1)
	device := videoDevice(9001, "relay-tenant", "relay-site")
	if err := repository.CreateDevice(ctx, device); err != nil {
		t.Fatal(err)
	}
	first, err := repository.ClaimAuditRelayBatch(ctx, "worker-a", 100, 30*time.Second)
	if err != nil || len(first) != 1 || first[0].SchemaVersion != 1 || first[0].AttemptCount != 1 {
		t.Fatalf("first claim: %+v %v", first, err)
	}
	if _, err := admin.ExecContext(ctx, `UPDATE sense.device_operation_outbox SET relay_lease_until=clock_timestamp()-interval '1 second' WHERE event_id=$1`, first[0].Event.EventID); err != nil {
		t.Fatal(err)
	}
	second, err := repository.ClaimAuditRelayBatch(ctx, "worker-b", 100, 30*time.Second)
	if err != nil || len(second) != 1 || second[0].LeaseToken <= first[0].LeaseToken {
		t.Fatalf("reclaim: %+v %v", second, err)
	}
	err = repository.CompleteAuditRelayBatch(ctx, "worker-a", []auditrelay.Completion{{EventID: first[0].Event.EventID, LeaseToken: first[0].LeaseToken, Disposition: auditrelay.Delivered}})
	if !errors.Is(err, auditrelay.ErrLeaseLost) {
		t.Fatalf("stale worker completion returned %v", err)
	}
	if err := repository.CompleteAuditRelayBatch(ctx, "worker-b", []auditrelay.Completion{{EventID: second[0].Event.EventID, LeaseToken: second[0].LeaseToken, Disposition: auditrelay.Delivered}}); err != nil {
		t.Fatal(err)
	}
	var delivered bool
	if err := admin.QueryRowContext(ctx, `SELECT delivered_at IS NOT NULL FROM sense.device_operation_outbox WHERE event_id=$1`, first[0].Event.EventID).Scan(&delivered); err != nil || !delivered {
		t.Fatalf("delivered=%v err=%v", delivered, err)
	}
}