//go:build detectors
// +build detectors

package huggingface

import (
	"context"
	"fmt"
	"testing"
	"time"

	"github.com/google/go-cmp/cmp"
	"github.com/google/go-cmp/cmp/cmpopts"

	"github.com/trufflesecurity/trufflehog/v3/pkg/common"
	"github.com/trufflesecurity/trufflehog/v3/pkg/detectors"
	"github.com/trufflesecurity/trufflehog/v3/pkg/pb/detectorspb"
)

func TestHuggingface_FromChunk(t *testing.T) {
	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
	defer cancel()
	testSecrets, err := common.GetSecret(ctx, "trufflehog-testing", "detectors5")
	if err != nil {
		t.Fatalf("could not get test secrets from GCP: %s", err)
	}
	secret := testSecrets.MustGetField("HUGGINGFACE")
	inactiveSecret := testSecrets.MustGetField("HUGGINGFACE_INACTIVE")

	type args struct {
		ctx    context.Context
		data   []byte
		verify bool
	}
	tests := []struct {
		name                string
		s                   Scanner
		args                args
		want                []detectors.Result
		wantErr             bool
		wantVerificationErr bool
	}{
		{
			name: "found, verified",
			s:    Scanner{},
			args: args{
				ctx:    context.Background(),
				data:   []byte(fmt.Sprintf("You can find a huggingface secret %s within", secret)),
				verify: true,
			},
			want: []detectors.Result{
				{
					DetectorType: detectorspb.DetectorType_HuggingFace,
					Verified:     true,
					ExtraData: map[string]string{
						"Email":    "zubair.khan@trufflesec.com",
						"Token":    "another_one (read)",
						"Username": "zubairkhan",
					},
				},
			},
			wantErr:             false,
			wantVerificationErr: false,
		},
		{
			name: "found, unverified",
			s:    Scanner{},
			args: args{
				ctx:    context.Background(),
				data:   []byte(fmt.Sprintf("You can find a huggingface secret %s within but not valid", inactiveSecret)), // the secret would satisfy the regex but not pass validation
				verify: true,
			},
			want: []detectors.Result{
				{
					DetectorType: detectorspb.DetectorType_HuggingFace,
					Verified:     false,
				},
			},
			wantErr:             false,
			wantVerificationErr: false,
		},
		{
			name: "not found",
			s:    Scanner{},
			args: args{
				ctx:    context.Background(),
				data:   []byte("You cannot find the secret within"),
				verify: true,
			},
			want:                nil,
			wantErr:             false,
			wantVerificationErr: false,
		},
		{
			name: "found, would be verified if not for timeout",
			s:    Scanner{client: common.SaneHttpClientTimeOut(1 * time.Microsecond)},
			args: args{
				ctx:    context.Background(),
				data:   []byte(fmt.Sprintf("You can find a huggingface secret %s within", secret)),
				verify: true,
			},
			want: []detectors.Result{
				{
					DetectorType: detectorspb.DetectorType_HuggingFace,
					Verified:     false,
				},
			},
			wantErr:             false,
			wantVerificationErr: true,
		},
		{
			name: "found, verified but unexpected api surface",
			s:    Scanner{client: common.ConstantResponseHttpClient(404, "")},
			args: args{
				ctx:    context.Background(),
				data:   []byte(fmt.Sprintf("You can find a huggingface secret %s within", secret)),
				verify: true,
			},
			want: []detectors.Result{
				{
					DetectorType: detectorspb.DetectorType_HuggingFace,
					Verified:     false,
				},
			},
			wantErr:             false,
			wantVerificationErr: true,
		},
	}

	// Add tests for invalid UTF-8 sequences.
	invalidUTF8Sequences := [][]byte{
		{0x80},
		{0xC0, 0xAF},
		{0xFE},
		{0xE2, 0x82},
		{0xED, 0xA0, 0x80},
		{0xF0, 0x28},
	}

	for _, invalidSeq := range invalidUTF8Sequences {
		// Inject invalid sequence into the test string
		testData := fmt.Sprintf("you can find a huggingface secret %s%s%s more valid text",
			string(invalidSeq),
			secret,
			string(invalidSeq))

		tests = append(tests, struct {
			name                string
			s                   Scanner
			args                args
			want                []detectors.Result
			wantErr             bool
			wantVerificationErr bool
		}{
			name: fmt.Sprintf("Test with invalid UTF-8 sequence: %v", invalidSeq),
			s:    Scanner{},
			args: args{
				ctx:    context.Background(),
				data:   []byte(testData),
				verify: true, // or true based on your test scenario
			},

			want: []detectors.Result{
				{
					DetectorType: detectorspb.DetectorType_HuggingFace,
					Verified:     true,
					ExtraData: map[string]string{
						"Email":    "zubair.khan@trufflesec.com",
						"Token":    "another_one (read)",
						"Username": "zubairkhan",
					},
				},
			},
			wantErr:             false,
			wantVerificationErr: false,
		})
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			got, err := tt.s.FromData(tt.args.ctx, tt.args.verify, tt.args.data)
			if (err != nil) != tt.wantErr {
				t.Errorf("Huggingface.FromData() error = %v, wantErr %v", err, tt.wantErr)
				return
			}
			for i := range got {
				if len(got[i].Raw) == 0 {
					t.Fatalf("no raw secret present: \n %+v", got[i])
				}
				if (got[i].VerificationError() != nil) != tt.wantVerificationErr {
					t.Fatalf(" wantVerificationError = %v, verification error = %v", tt.wantVerificationErr, got[i].VerificationError())
				}
				got[i].AnalysisInfo = nil
			}
			ignoreOpts := cmpopts.IgnoreFields(detectors.Result{}, "Raw", "verificationError")
			if diff := cmp.Diff(got, tt.want, ignoreOpts); diff != "" {
				t.Errorf("Huggingface.FromData() %s diff: (-got +want)\n%s", tt.name, diff)
			}
		})
	}
}

func BenchmarkFromData(benchmark *testing.B) {
	ctx := context.Background()
	s := Scanner{}
	for name, data := range detectors.MustGetBenchmarkData() {
		benchmark.Run(name, func(b *testing.B) {
			b.ResetTimer()
			for n := 0; n < b.N; n++ {
				_, err := s.FromData(ctx, false, data)
				if err != nil {
					b.Fatal(err)
				}
			}
		})
	}
}