Files
oikos/internal/core/domain/signal.go
dtoro e074f04bdf feat: Phase 0 of hexagonal refactor — ADR 0016, core scaffold, depguard rules
Problem: the hexagonal-architecture plan (plans/2026-08-15-hexagonal-
architecture.md) needs its foundation — an accepted ADR, the target
directory tree, and machine-checked dependency rules — before any
service extraction starts. Also folds the four outstanding review
findings (F3.1/F5/F6/F7) into the plan: ObservationService owns the
bounded probe-concurrency contract (scheduler.go:133), Phase 9 gates
ExecutionService+PolicyService ≥ 90% with a gating-matrix test,
per-phase abort criteria, and the §3.2 internal/config note.

Change:
- docs/adr/0016-hexagonal-ports-adapters.md records context, decision,
  and consequences of the ports & adapters migration.
- internal/domain → internal/core/domain (mechanical import rewrite,
  20 files), new internal/core/{ports,app}, internal/adapters trees
  with package docs.
- .golangci.yml: depguard rules for §3.1 (core purity, no agent-client
  tech in core, nomos isolation — the nomos rules self-activate when
  internal/nomos exists in Phase 8). Config migrated to golangci-lint
  v2 format so it loads at all (the v1 config errored under v2, masked
  by CI's advisory continue-on-error). Verified depguard fires on a
  planted openai-go import in internal/core/app.
- CONTRIBUTING.md layout section now shows the core/adapters tree.

Risk: import path churn is mechanical and tests pass unchanged; the
lint config migration surfaces the pre-existing 400-issue baseline
(advisory in CI, unchanged policy) — new/moved packages lint clean.

Verification: go vet ./..., make test (race, core/domain at 100%
coverage), make generate-check, golangci-lint on internal/core/... and
internal/adapters/... — 0 issues; depguard violation probe confirmed.
2026-08-15 22:09:19 +02:00

66 lines
1.7 KiB
Go

package domain
import "time"
// Signal is an attention record — something the lab noticed that needs
// attention and possibly action. Dual entity: has an entities row + a
// signals table row for indexed querying.
type Signal struct {
EntityID UUID
Kind string
Severity string
TargetEntityID UUID
CheckID UUID
Evidence string
LikelyCause string
State string
OccurrenceCount int
FirstSeenAt time.Time
LastSeenAt time.Time
FlapCount int
HoldDownUntil *time.Time
MuteUntil *time.Time
CreatedAt time.Time
UpdatedAt time.Time
}
// Signal lifecycle states (see lifecycle_defs in seeds/ontology.yaml).
const (
SignalRaised = "raised"
SignalAcknowledged = "acknowledged"
SignalActing = "acting"
SignalMuted = "muted"
SignalResolved = "resolved"
SignalFailed = "failed"
)
// Signal severities.
const (
SeverityInfo = "info"
SeverityWarning = "warning"
SeverityCritical = "critical"
)
// ValidSignalTransitions defines legal state transitions.
var ValidSignalTransitions = map[string][]string{
SignalRaised: {SignalAcknowledged, SignalMuted, SignalResolved},
SignalAcknowledged: {SignalActing, SignalResolved, SignalMuted},
SignalActing: {SignalResolved, SignalRaised, SignalFailed},
SignalFailed: {SignalAcknowledged},
SignalMuted: {SignalRaised},
}
// CanTransition returns true if from→to is a legal signal state transition.
func (s *Signal) CanTransition(to string) bool {
allowed, ok := ValidSignalTransitions[s.State]
if !ok {
return false
}
for _, a := range allowed {
if a == to {
return true
}
}
return false
}