private static DictCCSearchResult[] ExtractDictCCSearchResults(string html, string originLanguageCode, string destinationLanguageCode)
{
Match match = Regex.Match(html, @"var idArr = new Array\((?:(\d+),?)*\);");
if (!match.Success)
{
return(Array.Empty <DictCCSearchResult>());
}
int[] ids = match.Groups[1].Captures.Cast <Capture>().Select(capture => Convert.ToInt32(capture.Value)).ToArray();
match = Regex.Match(html, @"var c1Arr = new Array\((?:(""([^""]*)""),?)*\);");
if (!match.Success)
{
return(Array.Empty <DictCCSearchResult>());
}
string[] words1 = match.Groups[2].Captures.Cast <Capture>().Select(capture => capture.Value).ToArray();
match = Regex.Match(html, @"var c2Arr = new Array\((?:(""([^""]*)""),?)*\);");
if (!match.Success)
{
return(Array.Empty <DictCCSearchResult>());
}
string[] words2 = match.Groups[2].Captures.Cast <Capture>().Select(capture => capture.Value).ToArray();
if (ids.Length != words1.Length || ids.Length != words2.Length)
{
return(Array.Empty <DictCCSearchResult>());
}
DictCCSearchResult[] results = new DictCCSearchResult[ids.Length];
bool word2 = originLanguageCode == "DE" || (originLanguageCode == "EN" && destinationLanguageCode != "DE");
for (int i = 0; i < ids.Length; i++)
{
results[i] = new DictCCSearchResult
{
ID = ids[i],
Word1 = word2 ? words2[i] : words1[i],
Word2 = word2 ? words1[i] : words2[i]
}
}
;
return(results);
}
public static async Task <Uri> GetAudioRecordingUri(DictionaryEntryViewModel dictionaryEntryViewModel, bool word2)
{
DirectionViewModel selectedDirection = dictionaryEntryViewModel.SearchContext.SelectedDirection;
string word = selectedDirection.ReverseSearch ^ word2 ?
dictionaryEntryViewModel.DictionaryEntry.Word2 : dictionaryEntryViewModel.DictionaryEntry.Word1;
string otherWord = !selectedDirection.ReverseSearch ^ word2 ?
dictionaryEntryViewModel.DictionaryEntry.Word2 : dictionaryEntryViewModel.DictionaryEntry.Word1;
string originLanguageCode = word2 ? selectedDirection.DestinationLanguageCode : selectedDirection.OriginLanguageCode;
string destinationLanguageCode = word2 ? selectedDirection.OriginLanguageCode : selectedDirection.DestinationLanguageCode;
if (urlCache.TryGetValue(new LanguageWordPair(originLanguageCode, word), out Uri audioUri))
{
return(audioUri);
}
Uri requestUri = GetSearchPageUri(originLanguageCode, destinationLanguageCode, word);
string response = await httpClient.GetStringAsync(requestUri);
DictCCSearchResult[] dictCCSearchResults = ExtractDictCCSearchResults(response, originLanguageCode, destinationLanguageCode);
string wordJSLiteral = GetJSLiteralOfWord(word);
string otherWordJSLiteral = GetJSLiteralOfWord(otherWord);
DictCCSearchResult dictCCSearchResult = null;
if (wordJSLiteral != string.Empty || otherWordJSLiteral != string.Empty)
{
dictCCSearchResult = dictCCSearchResults.FirstOrDefault(result => result.Word1 == wordJSLiteral && result.Word2 == otherWordJSLiteral);
}
if (dictCCSearchResult != null)
{
audioUri = GetAudioRecordingUri(dictCCSearchResult.ID, originLanguageCode, destinationLanguageCode, originLanguageCode);
}
else
{
audioUri = null;
}
urlCache.Add(new LanguageWordPair(originLanguageCode, word), audioUri);
return(audioUri);
}