Crunchy-Downloader/CRD/Utils/Helpers.cs

426 lines
15 KiB
C#

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Net.Http;
using System.Runtime.Serialization;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using Avalonia.Media.Imaging;
using CRD.Utils.Structs;
using CRD.Utils.Structs.Crunchyroll.Music;
using Newtonsoft.Json;
namespace CRD.Utils;
public class Helpers{
/// <summary>
/// Deserializes a JSON string into a specified .NET type.
/// </summary>
/// <typeparam name="T">The type of the object to deserialize to.</typeparam>
/// <param name="json">The JSON string to deserialize.</param>
/// <param name="serializerSettings">The settings for deserialization if null default settings will be used</param>
/// <returns>The deserialized object of type T.</returns>
public static T? Deserialize<T>(string json, JsonSerializerSettings? serializerSettings){
try{
return JsonConvert.DeserializeObject<T>(json, serializerSettings);
} catch (JsonException ex){
Console.Error.WriteLine($"Error deserializing JSON: {ex.Message}");
throw;
}
}
public static string ConvertTimeFormat(string time){
var timeParts = time.Split(':', '.');
int hours = int.Parse(timeParts[0]);
int minutes = int.Parse(timeParts[1]);
int seconds = int.Parse(timeParts[2]);
int milliseconds = int.Parse(timeParts[3]);
return $"{hours}:{minutes:D2}:{seconds:D2}.{milliseconds / 10:D2}";
}
public static string ConvertVTTStylesToASS(string dialogue){
dialogue = Regex.Replace(dialogue, @"<b>", "{\\b1}");
dialogue = Regex.Replace(dialogue, @"</b>", "{\\b0}");
dialogue = Regex.Replace(dialogue, @"<i>", "{\\i1}");
dialogue = Regex.Replace(dialogue, @"</i>", "{\\i0}");
dialogue = Regex.Replace(dialogue, @"<u>", "{\\u1}");
dialogue = Regex.Replace(dialogue, @"</u>", "{\\u0}");
dialogue = Regex.Replace(dialogue, @"<[^>]+>", ""); // Remove any other HTML-like tags
return dialogue;
}
public static string ExtractDialogue(string[] lines, int startLine){
var dialogueBuilder = new StringBuilder();
for (int i = startLine; i < lines.Length && !string.IsNullOrWhiteSpace(lines[i]); i++){
if (!lines[i].Contains("-->") && !lines[i].StartsWith("STYLE")){
string line = lines[i].Trim();
// Remove HTML tags and keep the inner text
line = Regex.Replace(line, @"<[^>]+>", "");
dialogueBuilder.Append(line + "\\N");
}
}
// Remove the last newline character
if (dialogueBuilder.Length > 0){
dialogueBuilder.Length -= 2; // Remove the last "\N"
}
return dialogueBuilder.ToString();
}
public static void OpenUrl(string url){
try{
Process.Start(new ProcessStartInfo{
FileName = url,
UseShellExecute = true
});
} catch (Exception e){
Console.Error.WriteLine($"An error occurred while trying to open URL - {url} : {e.Message}");
}
}
public static void EnsureDirectoriesExist(string path){
// Check if the path is absolute
bool isAbsolute = Path.IsPathRooted(path);
// Get all directory parts of the path except the last segment (assuming it's a file)
string directoryPath = Path.GetDirectoryName(path);
if (string.IsNullOrEmpty(directoryPath)){
Console.WriteLine("The provided path does not contain any directory information.");
return;
}
// Initialize the cumulative path based on whether the original path is absolute or not
string cumulativePath = isAbsolute ? Path.GetPathRoot(directoryPath) : Environment.CurrentDirectory;
// Get all directory parts
string[] directories = directoryPath.Split(Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar);
// Start the loop from the correct initial index
int startIndex = isAbsolute && directories.Length > 0 && string.IsNullOrEmpty(directories[0]) ? 2 : 0;
for (int i = startIndex; i < directories.Length; i++){
// Skip empty parts (which can occur with UNC paths)
if (string.IsNullOrEmpty(directories[i])){
continue;
}
// Build the path incrementally
cumulativePath = Path.Combine(cumulativePath, directories[i]);
// Check if the directory exists and create it if it does not
if (!Directory.Exists(cumulativePath)){
Directory.CreateDirectory(cumulativePath);
Console.WriteLine($"Created directory: {cumulativePath}");
}
}
}
public static bool IsValidPath(string path){
char[] invalidChars = Path.GetInvalidPathChars();
if (string.IsNullOrWhiteSpace(path)){
return false;
}
if (path.Any(ch => invalidChars.Contains(ch))){
return false;
}
try{
// Use Path.GetFullPath to ensure that the path can be fully qualified
string fullPath = Path.GetFullPath(path);
return true;
} catch (Exception){
return false;
}
}
public static Locale ConvertStringToLocale(string? value){
foreach (Locale locale in Enum.GetValues(typeof(Locale))){
var type = typeof(Locale);
var memInfo = type.GetMember(locale.ToString());
var attributes = memInfo[0].GetCustomAttributes(typeof(EnumMemberAttribute), false);
var description = ((EnumMemberAttribute)attributes[0]).Value;
if (description == value){
return locale;
}
}
if (string.IsNullOrEmpty(value)){
return Locale.DefaulT;
}
return Locale.Unknown; // Return default if not found
}
public static string GenerateSessionId(){
// Get UTC milliseconds
var utcNow = DateTime.UtcNow;
var milliseconds = utcNow.Millisecond.ToString().PadLeft(3, '0');
// Get a high-resolution timestamp
long timestamp = Stopwatch.GetTimestamp();
double timestampToMilliseconds = (double)timestamp / Stopwatch.Frequency * 1000;
string highResTimestamp = timestampToMilliseconds.ToString("F0").PadLeft(13, '0');
return milliseconds + highResTimestamp;
}
public static void ConvertChapterFileForFFMPEG(string chapterFilePath){
var chapterLines = File.ReadAllLines(chapterFilePath);
var ffmpegChapterLines = new List<string>{ ";FFMETADATA1" };
var chapters = new List<(double StartTime, string Title)>();
for (int i = 0; i < chapterLines.Length; i += 2){
var timeLine = chapterLines[i];
var nameLine = chapterLines[i + 1];
var timeParts = timeLine.Split('=');
var nameParts = nameLine.Split('=');
if (timeParts.Length == 2 && nameParts.Length == 2){
var startTime = TimeSpan.Parse(timeParts[1]).TotalMilliseconds;
var title = nameParts[1];
chapters.Add((startTime, title));
}
}
// Sort chapters by start time
chapters = chapters.OrderBy(c => c.StartTime).ToList();
for (int i = 0; i < chapters.Count; i++){
var startTime = chapters[i].StartTime;
var title = chapters[i].Title;
var endTime = (i + 1 < chapters.Count) ? chapters[i + 1].StartTime : startTime + 10000; // Add 10 seconds to the last chapter end time
if (endTime < startTime){
endTime = startTime + 10000; // Correct end time if it is before start time
}
ffmpegChapterLines.Add("[CHAPTER]");
ffmpegChapterLines.Add("TIMEBASE=1/1000");
ffmpegChapterLines.Add($"START={startTime}");
ffmpegChapterLines.Add($"END={endTime}");
ffmpegChapterLines.Add($"title={title}");
}
File.WriteAllLines(chapterFilePath, ffmpegChapterLines);
}
public static async Task<(bool IsOk, int ErrorCode)> ExecuteCommandAsync(string type, string bin, string command){
try{
using (var process = new Process()){
process.StartInfo.FileName = bin;
process.StartInfo.Arguments = command;
process.StartInfo.RedirectStandardOutput = true;
process.StartInfo.RedirectStandardError = true;
process.StartInfo.UseShellExecute = false;
process.StartInfo.CreateNoWindow = true;
process.OutputDataReceived += (sender, e) => {
if (!string.IsNullOrEmpty(e.Data)){
Console.WriteLine(e.Data);
}
};
process.ErrorDataReceived += (sender, e) => {
if (!string.IsNullOrEmpty(e.Data)){
Console.WriteLine($"{e.Data}");
}
};
process.Start();
process.BeginOutputReadLine();
process.BeginErrorReadLine();
await process.WaitForExitAsync();
// Define success condition more appropriately based on the application
bool isSuccess = process.ExitCode == 0;
return (IsOk: isSuccess, ErrorCode: process.ExitCode);
}
} catch (Exception ex){
Console.Error.WriteLine($"An error occurred: {ex.Message}");
return (IsOk: false, ErrorCode: -1);
}
}
public static void DeleteFile(string filePath){
if (string.IsNullOrEmpty(filePath)){
return;
}
try{
if (File.Exists(filePath)){
File.Delete(filePath);
}
} catch (Exception ex){
Console.Error.WriteLine($"Failed to delete file {filePath}. Error: {ex.Message}");
// Handle exceptions if you need to log them or throw
}
}
public static async Task<(bool IsOk, int ErrorCode)> ExecuteCommandAsyncWorkDir(string type, string bin, string command, string workingDir){
try{
using (var process = new Process()){
process.StartInfo.WorkingDirectory = workingDir;
process.StartInfo.FileName = bin;
process.StartInfo.Arguments = command;
process.StartInfo.RedirectStandardOutput = true;
process.StartInfo.RedirectStandardError = true;
process.StartInfo.UseShellExecute = false;
process.StartInfo.CreateNoWindow = true;
process.OutputDataReceived += (sender, e) => {
if (!string.IsNullOrEmpty(e.Data)){
Console.WriteLine(e.Data);
}
};
process.ErrorDataReceived += (sender, e) => {
if (!string.IsNullOrEmpty(e.Data)){
Console.WriteLine($"{e.Data}");
}
};
process.Start();
process.BeginOutputReadLine();
process.BeginErrorReadLine();
await process.WaitForExitAsync();
// Define success condition more appropriately based on the application
bool isSuccess = process.ExitCode == 0;
return (IsOk: isSuccess, ErrorCode: process.ExitCode);
}
} catch (Exception ex){
Console.Error.WriteLine($"An error occurred: {ex.Message}");
return (IsOk: false, ErrorCode: -1);
}
}
public static double CalculateCosineSimilarity(string text1, string text2){
var vector1 = ComputeWordFrequency(text1);
var vector2 = ComputeWordFrequency(text2);
return CosineSimilarity(vector1, vector2);
}
private static readonly char[] Delimiters ={ ' ', ',', '.', ';', ':', '-', '_', '\'' };
public static Dictionary<string, double> ComputeWordFrequency(string text){
var wordFrequency = new Dictionary<string, double>(StringComparer.OrdinalIgnoreCase);
var words = SplitText(text);
foreach (var word in words){
if (wordFrequency.TryGetValue(word, out double count)){
wordFrequency[word] = count + 1;
} else{
wordFrequency[word] = 1;
}
}
return wordFrequency;
}
private static List<string> SplitText(string text){
var words = new List<string>();
int start = 0;
for (int i = 0; i < text.Length; i++){
if (Array.IndexOf(Delimiters, text[i]) >= 0){
if (i > start){
words.Add(text.Substring(start, i - start));
}
start = i + 1;
}
}
if (start < text.Length){
words.Add(text.Substring(start));
}
return words;
}
private static double CosineSimilarity(Dictionary<string, double> vector1, Dictionary<string, double> vector2){
var intersection = vector1.Keys.Intersect(vector2.Keys);
double dotProduct = intersection.Sum(term => vector1[term] * vector2[term]);
double normA = Math.Sqrt(vector1.Values.Sum(val => val * val));
double normB = Math.Sqrt(vector2.Values.Sum(val => val * val));
if (normA == 0 || normB == 0){
// If either vector has zero length, return 0 similarity.
return 0;
}
return dotProduct / (normA * normB);
}
public static string? ExtractNumberAfterS(string input){
// Define the regular expression pattern to match |S followed by a number and optionally C followed by another number
string pattern = @"\|S(\d+)(?:C(\d+))?";
Match match = Regex.Match(input, pattern);
if (match.Success){
string sNumber = match.Groups[1].Value;
string cNumber = match.Groups[2].Value;
if (!string.IsNullOrEmpty(cNumber)){
return $"{sNumber}.{cNumber}";
} else{
return sNumber;
}
} else{
return null;
}
}
public static async Task<Bitmap?> LoadImage(string imageUrl){
try{
using (var client = new HttpClient()){
var response = await client.GetAsync(imageUrl);
response.EnsureSuccessStatusCode();
using (var stream = await response.Content.ReadAsStreamAsync()){
return new Bitmap(stream);
}
}
} catch (Exception ex){
// Handle exceptions
Console.Error.WriteLine("Failed to load image: " + ex.Message);
}
return null;
}
public static Dictionary<string, List<DownloadedMedia>> GroupByLanguageWithSubtitles(List<DownloadedMedia> allMedia){
var languageGroups = allMedia
.GroupBy(media => {
if (media.Type == DownloadMediaType.Subtitle && media.RelatedVideoDownloadMedia != null){
return media.RelatedVideoDownloadMedia.Lang.CrLocale;
}
return media.Lang.CrLocale;
})
.ToDictionary(group => group.Key, group => group.ToList());
return languageGroups;
}
}