package files

import (
	"encoding/json"
	"math/rand"
	"reflect"
	"testing"
	"time"

	"github.com/gtsteffaniak/filebrowser/settings"
)

func BenchmarkFillIndex(b *testing.B) {
	InitializeIndex(false)
	si := GetIndex(settings.Config.Server.Root)
	b.ResetTimer()
	b.ReportAllocs()
	for i := 0; i < b.N; i++ {
		si.createMockData(50, 3) // 1000 dirs, 3 files per dir
	}
}

func (si *Index) createMockData(numDirs, numFilesPerDir int) {
	for i := 0; i < numDirs; i++ {
		dirPath := generateRandomPath(rand.Intn(3) + 1)
		files := []ItemInfo{} // Slice of FileInfo

		// Simulating files and directories with FileInfo
		for j := 0; j < numFilesPerDir; j++ {
			newFile := ItemInfo{
				Name:    "file-" + getRandomTerm() + getRandomExtension(),
				Size:    rand.Int63n(1000),                                          // Random size
				ModTime: time.Now().Add(-time.Duration(rand.Intn(100)) * time.Hour), // Random mod time
				Type:    "blob",
			}
			files = append(files, newFile)
		}
		dirInfo := &FileInfo{
			Path:  dirPath,
			Files: files,
		}

		si.UpdateMetadata(dirInfo)
	}
}

func generateRandomPath(levels int) string {
	rand.New(rand.NewSource(time.Now().UnixNano()))
	dirName := "srv"
	for i := 0; i < levels; i++ {
		dirName += "/" + getRandomTerm()
	}
	return dirName
}

func getRandomTerm() string {
	wordbank := []string{
		"hi", "test", "other", "name",
		"cool", "things", "more", "items",
	}
	rand.New(rand.NewSource(time.Now().UnixNano()))

	index := rand.Intn(len(wordbank))
	return wordbank[index]
}

func getRandomExtension() string {
	wordbank := []string{
		".txt", ".mp3", ".mov", ".doc",
		".mp4", ".bak", ".zip", ".jpg",
	}
	rand.New(rand.NewSource(time.Now().UnixNano()))
	index := rand.Intn(len(wordbank))
	return wordbank[index]
}

func generateRandomSearchTerms(numTerms int) []string {
	// Generate random search terms
	searchTerms := make([]string, numTerms)
	for i := 0; i < numTerms; i++ {
		searchTerms[i] = getRandomTerm()
	}
	return searchTerms
}

// JSONBytesEqual compares the JSON in two byte slices.
func JSONBytesEqual(a, b []byte) (bool, error) {
	var j, j2 interface{}
	if err := json.Unmarshal(a, &j); err != nil {
		return false, err
	}
	if err := json.Unmarshal(b, &j2); err != nil {
		return false, err
	}
	return reflect.DeepEqual(j2, j), nil
}

func TestGetIndex(t *testing.T) {
	tests := []struct {
		name string
		want *map[string][]string
	}{
		// TODO: Add test cases.
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			if got := GetIndex("root"); !reflect.DeepEqual(got, tt.want) {
				t.Errorf("GetIndex() = %v, want %v", got, tt.want)
			}
		})
	}
}