package iace

import "testing"

// Fixture mirrors the real NTRS /search response shape (copyright is an OBJECT).
const ntrsFixture = `{"results":[
 {"id":20205010628,"title":"Lessons Learned from Large-Scale Aerospace Structural Testing","abstract":"A bracket fractured under load.",
  "distribution":"PUBLIC","isLessonsLearned":true,
  "copyright":{"determinationType":"GOV_PUBLIC_USE_PERMITTED","containsThirdPartyMaterial":false,"licenseType":"NO"},
  "exportControl":{"isExportControl":"NO","ear":"NO","itar":"NO"},"cui":{"isCui":false},
  "downloads":[{"mimetype":"application/pdf","links":{"original":"/api/citations/20205010628/downloads/paper.pdf"}}]},
 {"id":1001,"title":"ITAR controlled","abstract":"x","distribution":"PUBLIC","isLessonsLearned":true,
  "copyright":{"determinationType":"GOV_PUBLIC_USE_PERMITTED","containsThirdPartyMaterial":false},
  "exportControl":{"isExportControl":"YES","ear":"NO","itar":"YES"},"cui":null,
  "downloads":[{"mimetype":"application/pdf","links":{"original":"/x.pdf"}}]},
 {"id":1002,"title":"Third party","abstract":"x","distribution":"PUBLIC","isLessonsLearned":true,
  "copyright":{"determinationType":"PUBLIC_USE_PERMITTED","containsThirdPartyMaterial":true},
  "exportControl":{"isExportControl":"NO"},"cui":null,"downloads":[]},
 {"id":1003,"title":"Restricted dist","abstract":"x","distribution":"RESTRICTED",
  "copyright":{"determinationType":"GOV_PUBLIC_USE_PERMITTED"},"exportControl":{"isExportControl":"NO"}},
 {"id":1004,"title":"Video only","abstract":"x","distribution":"PUBLIC","isLessonsLearned":true,
  "copyright":{"determinationType":"PUBLIC_USE_PERMITTED","containsThirdPartyMaterial":false},
  "exportControl":{"isExportControl":"NO"},"cui":{"isCui":false},
  "downloads":[{"mimetype":"video/mp4","links":{"original":"/v.mp4"}}]}
]}`

func TestParseNTRSSearch(t *testing.T) {
	ls, err := parseNTRSSearch([]byte(ntrsFixture))
	if err != nil {
		t.Fatalf("parse: %v", err)
	}
	if len(ls) != 5 {
		t.Fatalf("expected 5 results, got %d", len(ls))
	}
	if ls[0].ID != 20205010628 || ls[0].Copyright.DeterminationType != "GOV_PUBLIC_USE_PERMITTED" {
		t.Errorf("first record parsed wrong: %+v", ls[0])
	}
}

func TestNTRSUsable_Gate(t *testing.T) {
	ls, _ := parseNTRSSearch([]byte(ntrsFixture))
	want := []bool{true, false, false, false, true} // ok, ITAR, third-party, restricted, ok(video)
	for i, l := range ls {
		ok, lic := NTRSUsable(l)
		if ok != want[i] {
			t.Errorf("record %d (%q): usable=%v, want %v", l.ID, l.Title, ok, want[i])
		}
		if ok && lic == "" {
			t.Errorf("record %d usable but empty licence", l.ID)
		}
		// Every accepted record must also pass the failure-knowledge allowlist.
		if ok && !FailureKnowledgeLicenseAllowed(lic) {
			t.Errorf("record %d licence %q not allowed by FK allowlist", l.ID, lic)
		}
	}
}

func TestNTRSPDFURL(t *testing.T) {
	ls, _ := parseNTRSSearch([]byte(ntrsFixture))
	if got := NTRSPDFURL(ls[0]); got != "https://ntrs.nasa.gov/api/citations/20205010628/downloads/paper.pdf" {
		t.Errorf("pdf url = %q", got)
	}
	if got := NTRSPDFURL(ls[4]); got != "" { // video-only → no PDF
		t.Errorf("video-only should have no PDF url, got %q", got)
	}
}