// SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later

package spdxlib

import (
	"testing"

	"github.com/spdx/tools-golang/spdx"
	"github.com/spdx/tools-golang/spdx/v2/common"
)

func TestValidDocumentPassesValidation(t *testing.T) {
	// set up document and some packages and relationships
	doc := &spdx.Document{
		SPDXVersion:    spdx.Version,
		DataLicense:    spdx.DataLicense,
		SPDXIdentifier: common.ElementID("DOCUMENT"),
		CreationInfo:   &spdx.CreationInfo{},
		Packages: []*spdx.Package{
			{PackageName: "pkg1", PackageSPDXIdentifier: "p1"},
			{PackageName: "pkg2", PackageSPDXIdentifier: "p2"},
			{PackageName: "pkg3", PackageSPDXIdentifier: "p3"},
			{PackageName: "pkg4", PackageSPDXIdentifier: "p4"},
			{PackageName: "pkg5", PackageSPDXIdentifier: "p5"},
		},
		Files: []*spdx.File{
			{FileName: "file1", FileSPDXIdentifier: "f1"},
		},
		Relationships: []*spdx.Relationship{
			{
				RefA:         common.MakeDocElementID("", "DOCUMENT"),
				RefB:         common.MakeDocElementID("", "p1"),
				Relationship: "DESCRIBES",
			},
			{
				RefA:         common.MakeDocElementID("", "DOCUMENT"),
				RefB:         common.MakeDocElementID("", "p5"),
				Relationship: "DESCRIBES",
			},
			// inverse relationship -- should also get detected
			{
				RefA:         common.MakeDocElementID("", "p4"),
				RefB:         common.MakeDocElementID("", "DOCUMENT"),
				Relationship: "DESCRIBED_BY",
			},
			// different relationship
			{
				RefA:         common.MakeDocElementID("", "p1"),
				RefB:         common.MakeDocElementID("", "p2"),
				Relationship: "DEPENDS_ON",
			},
		},
	}

	err := ValidateDocument(doc)
	if err != nil {
		t.Fatalf("expected nil error, got: %s", err.Error())
	}
}

func TestInvalidDocumentFailsValidation(t *testing.T) {
	// set up document and some packages and relationships
	doc := &spdx.Document{
		SPDXVersion:    spdx.Version,
		DataLicense:    spdx.DataLicense,
		SPDXIdentifier: common.ElementID("DOCUMENT"),
		CreationInfo:   &spdx.CreationInfo{},
		Packages: []*spdx.Package{
			{PackageName: "pkg1", PackageSPDXIdentifier: "p1"},
			{PackageName: "pkg2", PackageSPDXIdentifier: "p2"},
			{PackageName: "pkg3", PackageSPDXIdentifier: "p3"},
		},
		Relationships: []*spdx.Relationship{
			{
				RefA:         common.MakeDocElementID("", "DOCUMENT"),
				RefB:         common.MakeDocElementID("", "p1"),
				Relationship: "DESCRIBES",
			},
			{
				RefA:         common.MakeDocElementID("", "DOCUMENT"),
				RefB:         common.MakeDocElementID("", "p5"),
				Relationship: "DESCRIBES",
			},
			// invalid ID p99
			{
				RefA:         common.MakeDocElementID("", "p1"),
				RefB:         common.MakeDocElementID("", "p99"),
				Relationship: "DEPENDS_ON",
			},
		},
	}

	err := ValidateDocument(doc)
	if err == nil {
		t.Fatalf("expected non-nil error, got nil")
	}

	doc = &spdx.Document{
		SPDXVersion:    spdx.Version,
		DataLicense:    spdx.DataLicense,
		SPDXIdentifier: common.ElementID("DOCUMENT"),
		CreationInfo:   &spdx.CreationInfo{},

		Relationships: []*spdx.Relationship{
			{
				RefA:         common.MakeDocElementID("", "p1"),
				RefB:         common.MakeDocElementID("", "p99"),
				Relationship: "DEPENDS_ON",
			},
		},
	}

	err = ValidateDocument(doc)
	if err == nil {
		t.Fatalf("expected non-nil error, got nil")
	}
}