package iace

import (
	"testing"

	"github.com/google/uuid"
)

func TestEstimateHazardRisk_Ordered(t *testing.T) {
	r := EstimateHazardRisk([]string{"electrical_hazard"}, "Elektrischer Schlag am Gehaeuse", []string{"normal_operation"})
	if r.Severity < 1 || r.Severity > 5 || r.Probability < 1 || r.Avoidance < 1 {
		t.Fatalf("params out of range: %+v", r)
	}
	if r.RiskLow > r.RiskPoint || r.RiskPoint > r.RiskHigh {
		t.Errorf("range not ordered: low=%d point=%d high=%d", r.RiskLow, r.RiskPoint, r.RiskHigh)
	}
	if r.Confidence != "hoch" { // "elektrisch" keyword → clear contact mode
		t.Errorf("expected confidence hoch, got %q", r.Confidence)
	}
}

func TestBuildRiskMatrix(t *testing.T) {
	hazards := []Hazard{
		{ID: uuid.New(), Name: "Elektrischer Schlag", Category: "electrical_hazard", Scenario: "Stromschlag am Gehaeuse", LifecyclePhase: "normal_operation"},
		{ID: uuid.New(), Name: "Elektrischer Schlag 2", Category: "electrical_hazard", Scenario: "Stromschlag an Klemme", LifecyclePhase: "normal_operation"},
		{ID: uuid.New(), Name: "Quetschen", Category: "mechanical_hazard", Scenario: "Quetschen der Hand", LifecyclePhase: "maintenance"},
	}
	m := BuildRiskMatrix(hazards)
	if m.Total != 3 || len(m.Hazards) != 3 {
		t.Fatalf("expected 3 hazards, got total=%d hazards=%d", m.Total, len(m.Hazards))
	}
	// The two identical electrical hazards land in the same Severity×Probability cell.
	var sum int
	for _, c := range m.Matrix {
		sum += c.Count
		if c.Severity < 1 || c.Probability < 1 {
			t.Errorf("cell has invalid coords: %+v", c)
		}
		if c.DominantLevel == "" {
			t.Errorf("cell missing dominant level: %+v", c)
		}
	}
	if sum != 3 {
		t.Errorf("matrix cell counts sum to %d, want 3", sum)
	}
	// Level counts must also total the hazard count.
	lc := 0
	for _, n := range m.LevelCounts {
		lc += n
	}
	if lc != 3 {
		t.Errorf("level counts sum to %d, want 3", lc)
	}
}