package iace

import "testing"

func TestFailureKnowledgeLicenseAllowed(t *testing.T) {
	accept := []string{
		"Public Domain (NASA NTRS, GOV_PUBLIC_USE_PERMITTED)",
		"US Public Domain",
		"CC BY 4.0",
		"CC BY-SA 4.0",
		"Open Government Licence v3.0",
		"MIT",
	}
	for _, l := range accept {
		if !FailureKnowledgeLicenseAllowed(l) {
			t.Errorf("license should be ALLOWED: %q", l)
		}
	}
	reject := []string{
		"© 1991, IIT Research Institute. All Rights Reserved.", // FMD-91/NPRD-91
		"CC BY-NC 4.0",
		"proprietary (Quanterion)",
		"DIN EN ISO 13849 table",
		"AIAG-VDA handbook",
		"OREDA member-only",
		"CC BY-ND",
		"",
	}
	for _, l := range reject {
		if FailureKnowledgeLicenseAllowed(l) {
			t.Errorf("license should be REJECTED: %q", l)
		}
	}
}

func TestNASAFailureKnowledge_Integrity(t *testing.T) {
	seen := map[string]bool{}
	nasa := GetNASAFailureKnowledge()
	if len(nasa) == 0 {
		t.Fatal("NASA starter set is empty")
	}
	for _, fk := range nasa {
		if seen[fk.ID] {
			t.Errorf("duplicate FK id %q", fk.ID)
		}
		seen[fk.ID] = true
		if fk.ID == "" || fk.Component == "" || fk.FailureMode == "" || fk.Effect == "" ||
			fk.Control == "" || fk.Source == "" || fk.License == "" || fk.Attribution == "" {
			t.Errorf("%s: empty required field: %+v", fk.ID, fk)
		}
		if fk.URL == "" {
			t.Errorf("%s: NASA entry missing source URL", fk.ID)
		}
	}
}

// Governance invariant: EVERY curated entry must carry a commercially-usable
// licence — this is the gate that keeps copyrighted/proprietary data out.
func TestAllFailureKnowledge_LicensesAllowed(t *testing.T) {
	for _, fk := range AllFailureKnowledge() {
		if !FailureKnowledgeLicenseAllowed(fk.License) {
			t.Errorf("%s carries a non-allowed licence %q", fk.ID, fk.License)
		}
	}
}

func TestFailureKnowledgeByDomain(t *testing.T) {
	all := AllFailureKnowledge()
	if len(all) == 0 {
		t.Fatal("no failure knowledge")
	}
	d := all[0].Domain
	got := FailureKnowledgeByDomain(d)
	if len(got) == 0 {
		t.Errorf("expected entries for domain %q", d)
	}
	for _, fk := range got {
		if fk.Domain != d {
			t.Errorf("domain filter leaked %q into %q", fk.Domain, d)
		}
	}
}