package jdbc

import (
	"context"
	"fmt"
	"os"
	"testing"

	"github.com/google/go-cmp/cmp"
	"github.com/kylelemons/godebug/pretty"
	"github.com/trufflesecurity/trufflehog/v3/pkg/detectors"
	"github.com/trufflesecurity/trufflehog/v3/pkg/engine/ahocorasick"
)

var (
	validPattern   = "jdbc:mysql:localhost:3306/mydatabase"
	invalidPattern = "jdbc:my?ql:localhost:3306/my database"
	keyword        = "jdbc"
)

func TestJdbc_Pattern(t *testing.T) {
	d := Scanner{}
	ahoCorasickCore := ahocorasick.NewAhoCorasickCore([]detectors.Detector{d})
	tests := []struct {
		name  string
		input string
		want  []string
	}{
		{
			name:  "valid pattern",
			input: fmt.Sprintf("%s token = '%s'", keyword, validPattern),
			want:  []string{validPattern},
		},
		{
			name:  "invalid pattern",
			input: fmt.Sprintf("%s = '%s'", keyword, invalidPattern),
			want:  []string{},
		},
	}

	for _, test := range tests {
		t.Run(test.name, func(t *testing.T) {
			matchedDetectors := ahoCorasickCore.FindDetectorMatches([]byte(test.input))
			if len(matchedDetectors) == 0 {
				t.Errorf("keywords '%v' not matched by: %s", d.Keywords(), test.input)
				return
			}

			results, err := d.FromData(context.Background(), false, []byte(test.input))
			if err != nil {
				t.Errorf("error = %v", err)
				return
			}

			if len(results) != len(test.want) {
				if len(results) == 0 {
					t.Errorf("did not receive result")
				} else {
					t.Errorf("expected %d results, only received %d", len(test.want), len(results))
				}
				return
			}

			actual := make(map[string]struct{}, len(results))
			for _, r := range results {
				if len(r.RawV2) > 0 {
					actual[string(r.RawV2)] = struct{}{}
				} else {
					actual[string(r.Raw)] = struct{}{}
				}
			}
			expected := make(map[string]struct{}, len(test.want))
			for _, v := range test.want {
				expected[v] = struct{}{}
			}

			if diff := cmp.Diff(expected, actual); diff != "" {
				t.Errorf("%s diff: (-want +got)\n%s", test.name, diff)
			}
		})
	}
}

func TestJdbc_FromDataWithIgnorePattern(t *testing.T) {
	type args struct {
		ctx    context.Context
		data   []byte
		verify bool
	}
	tests := []struct {
		name           string
		args           args
		want           []detectors.Result
		ignorePatterns []string
		wantErr        bool
	}{
		{
			name: "not found",
			args: args{
				ctx:    context.Background(),
				data:   []byte("jdbc:sqlite::secretpattern:"),
				verify: false,
			},
			want: nil,
			ignorePatterns: []string{
				".*secretpattern.*",
			},
			wantErr: false,
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			s := New(WithIgnorePattern(tt.ignorePatterns))
			got, err := s.FromData(tt.args.ctx, tt.args.verify, tt.args.data)
			if (err != nil) != tt.wantErr {
				t.Errorf("Jdbc.FromDataWithConfig() error = %v, wantErr %v", err, tt.wantErr)
				return
			}
			if os.Getenv("FORCE_PASS_DIFF") == "true" {
				return
			}
			for i := range got {
				if len(got[i].Raw) == 0 {
					t.Fatal("no raw secret present")
				}
				got[i].Raw = nil
			}
			if diff := pretty.Compare(got, tt.want); diff != "" {
				t.Errorf("Jdbc.FromDataWithConfig() %s diff: (-got +want)\n%s", tt.name, diff)
			}
		})
	}
}