package semantic_evolution_test

import (
	"errors"
	"testing"

	"git.cin.su/m/Assistant/contracts/capability"
	"git.cin.su/m/Assistant/modules/capability/domain"
	"git.cin.su/m/Assistant/platform/ids"
)

func TestHistoricalV1HealthRemainsExplicitlyInterpretable(t *testing.T) {
	historical := capability.Health{CapabilityID: capability.CapabilityID(ids.ID("historical")), State: capability.HealthDegraded, Reason: capability.ReasonCognitiveProvidersUnavailable, Revision: 1, SemanticVersion: capability.HealthV1}
	if err := domain.ValidateHealth(historical); err != nil {
		t.Fatalf("historical V1 health rejected: %v", err)
	}
	if historical.ObservedAtUnixMillis != nil {
		t.Fatal("V1 must preserve the absence of V2 observation time")
	}
}

func TestV2RequiresObservationTimeAndRejectsUnknownVersion(t *testing.T) {
	observed := int64(1720000000000)
	v2 := capability.Health{CapabilityID: capability.CapabilityID(ids.ID("current")), State: capability.HealthAvailable, Reason: capability.ReasonNone, Revision: 2, SemanticVersion: capability.HealthV2, ObservedAtUnixMillis: &observed}
	if err := domain.ValidateHealth(v2); err != nil {
		t.Fatalf("V2 health rejected: %v", err)
	}
	v2.SemanticVersion = 3
	if err := domain.ValidateHealth(v2); !errors.Is(err, domain.ErrUnsupportedHealthVersion) {
		t.Fatalf("unknown version error = %v", err)
	}
}