public static async Task <List <FindedSongObject> > SearchArtistSongs(FindedSongObject songToFind, Boolean useLinkToSongs = false)
{
IPageService _pageService = new PageService();
List <FindedSongObject> songs = new List <FindedSongObject>();
string html = null;
string artistWithFirstCharUpper = char.ToUpper(songToFind.Artist[0]) + songToFind.Artist.Substring(1);
string url = "";
try
{
if (useLinkToSongs && !String.IsNullOrEmpty(songToFind.LinkToArtistSongs))
{
url = $"https://www.tekstowo.pl/{songToFind.LinkToArtistSongs}";
}
else if (!String.IsNullOrEmpty(songToFind.WorkingArtist))
{
url = $"https://www.tekstowo.pl/piosenki_artysty,{songToFind.WorkingArtist}.html";
}
else
{
return(null);
}
HttpClient httpClient = new HttpClient();
html = await httpClient.GetStringAsync(url);
}
catch (HttpRequestException)
{
await _pageService.DisplayAlert(AppResources.AlertDialog_SearchProblem, $"{AppResources.AlertDialog_CouldNotFindArtistsSongs} {artistWithFirstCharUpper}", AppResources.AlertDialog_OK);
return(null);
}
finally
{
HtmlDocument htmlDocument = new HtmlDocument();
htmlDocument.LoadHtml(html);
// chech if is more than one pages of results
HtmlNodeCollection queryPages = htmlDocument.DocumentNode.SelectNodes("//li[@class='page-item']");
if (queryPages != null)
{
var listOfPages = queryPages.ToList();
List <string> pagesHTMLLink = new List <string>();
if (!String.IsNullOrEmpty(url))
{
pagesHTMLLink.Add(url);
}
foreach (var div in listOfPages)
{
int indexStartLink = div.InnerHtml.IndexOf("href") + 7;
int indexEndLink = div.InnerHtml.IndexOf("title=") - 2;
int checkIndexOfNextPageButtonElement = div.InnerHtml.IndexOf("tabindex=");
if (checkIndexOfNextPageButtonElement != -1)
{
continue;
}
if (indexStartLink != 0 && indexEndLink != 0)
{
string link = div.InnerHtml[indexStartLink..indexEndLink];
public static async Task <string> FindTextFromArtistAndTitle(FindedSongObject songToFind, Boolean useLinkFromObject = false)
{
IPageService _pageService = new PageService();
string html = null;
string text = null;
try
{
string url;
if (useLinkFromObject && !String.IsNullOrEmpty(songToFind.LinkToSong))
{
url = $"https://www.tekstowo.pl/" + songToFind.LinkToSong;
}
else if (songToFind.WorkingArtist != "" && songToFind.WorkingTitle != "")
{
url = $"https://www.tekstowo.pl/piosenka,{songToFind.WorkingArtist},{songToFind.WorkingTitle}.html";
}
else
{
return(null);
}
HttpClient httpClient = new HttpClient();
html = await httpClient.GetStringAsync(url);
}
catch (HttpRequestException)
{
await _pageService.DisplayAlert(AppResources.AlertDialog_TextNotFound, $"{AppResources.AlertDialog_TextNotFoundFor} { songToFind.Title} { songToFind.Artist} \n{AppResources.AlertDialog_SelectArtistAndTrackManually}", AppResources.AlertDialog_OK);
return(null);
}
finally
{
if (html != null && html != "")
{
HtmlDocument htmlDocument = new HtmlDocument();
htmlDocument.LoadHtml(html);
text = htmlDocument.DocumentNode.SelectSingleNode("//div[@id='songText']").InnerText;
text = DeleteLines(text, 2, false);
text = DeleteLines(text, 4, true);
text = DeleteStartAndEndEmptyLines(text);
}
}
return(text);
}
async Task SearchText()
{
try
{
int searchType;
FindedSongObject songToFind = new FindedSongObject()
{
Title = Title, Artist = Artist
};
if ((Title != null && !Title.Equals("")) && (Artist != null && !Artist.Equals("")))
{
songToFind.WorkingTitle = TekstowoHelper.NormalizeTextWithoutPolishSpecialChar(Title.ToLower().Replace(" ", "_"));
songToFind.WorkingArtist = TekstowoHelper.NormalizeTextWithoutPolishSpecialChar(Artist.ToLower().Replace(" ", "_"));
searchType = 1;
}
else if ((Artist != null && !Artist.Equals("")) && (Title == null || Title.Equals("")))
{
songToFind.WorkingArtist = TekstowoHelper.NormalizeTextWithoutPolishSpecialChar(Artist.ToLower().Replace(" ", "_"));
searchType = 2;
}
else if ((Artist == null || Artist.Equals("")) && (Title != null && !Title.Equals("")))
{
songToFind.WorkingTitle = TekstowoHelper.NormalizeTextWithoutPolishSpecialChar(Title.ToLower().Replace(" ", "_"));
searchType = 3;
}
else
{
await _pageService.DisplayAlert(AppResources.AlertDialog_Error, AppResources.AlertDialog_CompleteAtLeastOneField, AppResources.AlertDialog_OK);
return;
}
switch (searchType)
{
case 1:
Text = await TekstowoHelper.FindTextFromArtistAndTitle(songToFind);
if (Text == null)
{
goto case 2;
}
else
{
break;
}
case 2:
List <FindedSongObject> artistSongs = await TekstowoHelper.SearchArtistSongs(songToFind);
if (artistSongs.Count == 0)
{
songToFind = await TekstowoHelper.SearchArtist(songToFind);
if (songToFind == null)
{
break;
}
List <FindedSongObject> findedSongs = await TekstowoHelper.SearchArtistSongs(songToFind, true);
if (findedSongs.Count != 0)
{
List <string> listOfSongsFullName = new List <string>();
foreach (var item in findedSongs)
{
listOfSongsFullName.Add(item.FullSongName);
}
string choosenSong = await _pageService.DisplayPositionToChoose(AppResources.DisplayPositionToChoose_ChooseSong, AppResources.AlertDialog_Cancel, null, listOfSongsFullName.ToArray());
if (choosenSong.Equals(AppResources.AlertDialog_Cancel))
{
break;
}
songToFind = findedSongs[listOfSongsFullName.IndexOf(choosenSong)];
Text = await TekstowoHelper.FindTextFromArtistAndTitle(songToFind, true);
if (!String.IsNullOrEmpty(Text))
{
Title = songToFind.Title;
Artist = songToFind.Artist;
}
}
}
else
{
List <string> listOfSongsFullName = new List <string>();
foreach (var item in artistSongs)
{
listOfSongsFullName.Add(item.FullSongName);
}
string choosenSong = await _pageService.DisplayPositionToChoose(AppResources.DisplayPositionToChoose_ChooseSong, AppResources.AlertDialog_Cancel, null, listOfSongsFullName.ToArray());
if (choosenSong.Equals(AppResources.AlertDialog_Cancel))
{
break;
}
songToFind = artistSongs[listOfSongsFullName.IndexOf(choosenSong)];
Text = await TekstowoHelper.FindTextFromArtistAndTitle(songToFind, true);
if (!String.IsNullOrEmpty(Text))
{
Title = songToFind.Title;
}
}
break;
case 3:
songToFind = await TekstowoHelper.SearchSong(songToFind);
if (songToFind == null)
{
break;
}
Text = await TekstowoHelper.FindTextFromArtistAndTitle(songToFind, true);
if (!String.IsNullOrEmpty(Text))
{
Title = songToFind.Title;
Artist = songToFind.Artist;
}
break;
default:
break;
}
}
catch (Exception e)
{
Log.Debug(TAG, e.Message);
await _pageService.DisplayAlert(AppResources.AlertDIalog_UnexpectedError, AppResources.AlertDIalog_UnexpectedErrorMessage, AppResources.AlertDialog_OK);
}
}
