public string SetKeyword(string keyword)
{
try
{
Validation validator = new Validation();
string validationSearchResult = validator.ValidateSearchKeyword(keyword);
if (validationSearchResult != "0")
{
throw new Exception(validationSearchResult);
}
GoogleSearchEngineHelper googleSearch = new GoogleSearchEngineHelper();
string resultHTML = googleSearch.getSearchResult(keyword);
return(resultHTML);
}
catch (Exception ex)
{
throw ex;
}
}
public string ProvideKeyWord(string keyword)
{
try
{
Validation validator = new Validation();
string validationSearchResult = validator.ValidateSearchKeyword(keyword);
if (validationSearchResult != "0")
{
throw new Exception(validationSearchResult);
}
GoogleSearchEngineHelper googleSearch = new GoogleSearchEngineHelper();
string resultHTML = googleSearch.getSearchResult(keyword);
int sequenceNo;
if (!int.TryParse(Console.ReadLine(), out sequenceNo))
{
throw new Exception("Not a valid sequence");
}
///Validate sequence keyword
string validationSequenceNumberResult = validator.ValidateSequenceNo(sequenceNo);
if (validationSequenceNumberResult != "0")
{
throw new Exception(validationSequenceNumberResult);
}
HtmlPageHelper htmlPageManipulation = new HtmlPageHelper();
string resultURL = htmlPageManipulation.findSequencesResult(sequenceNo, resultHTML);
return(resultURL);
}
catch (Exception ex)
{
throw ex;
}
}
static void Main(string[] args)
{
#region Commented
//string uriString = "http://www.google.com/search";
//string keywordString = "docker";
//WebClient webClient = new WebClient();
//NameValueCollection nameValueCollection = new NameValueCollection();
//nameValueCollection.Add("q", keywordString);
//webClient.QueryString.Add(nameValueCollection);
//string Text = webClient.DownloadString(uriString);
/////HTML Agility pack
//HtmlDocument document = new HtmlDocument();
//document.Load(new MemoryStream(Encoding.UTF8.GetBytes(Text)));
//HtmlNode node = document.DocumentNode.SelectNodes("//*[@id=\"ires\"]/ol/div[5]")[0];//.SelectNodes("//a[@href]")[0];//.Split("url?q=".ToCharArray())[1];
////var url = node.SelectNodes(".//a[@href]")[0].Attributes["href"].Value.Split(new string[] { "url?q="}, StringSplitOptions.None)[1];
//var url = node.SelectNodes(".//cite")[0].InnerText;
//Console.WriteLine(url);
#endregion
try
{
Console.WriteLine(" ASSIGNMENT ");
Console.WriteLine("--------------------------------");
Console.WriteLine("Please enter the search keyword :- ");
string keyword = Console.ReadLine();
///Validate search keyword
Validation validator = new Validation();
string validationSearchResult = validator.ValidateSearchKeyword(keyword);
while (validationSearchResult != "0")
{
Console.WriteLine(validationSearchResult);
Console.WriteLine("-----------------------------------------");
Console.WriteLine("Please enter again the search keyword :- ");
keyword = Console.ReadLine();
validationSearchResult = validator.ValidateSearchKeyword(keyword);
}
GoogleSearchEngineHelper googleSearch = new GoogleSearchEngineHelper();
string resultHTML = googleSearch.getSearchResult(keyword);
Console.WriteLine("Cheers we got search result for you.");
Console.WriteLine("------------------------------------");
Console.WriteLine("Please define which sequence of search result's URL required : -");
//string sequenceNo = Console.ReadLine();
int sequenceNo;
//int.TryParse(Console.ReadLine(), out sequenceNo);
if (!int.TryParse(Console.ReadLine(), out sequenceNo))
{
throw new Exception("Not a valid sequence");
}
///Validate sequence keyword
string validationSequenceNumberResult = validator.ValidateSequenceNo(sequenceNo);
while (validationSequenceNumberResult != "0")
{
Console.WriteLine(validationSequenceNumberResult);
Console.WriteLine("----------------------------------------------------------------------");
Console.WriteLine("Please define which sequence of search result's URL required again : -");
if (!int.TryParse(Console.ReadLine(), out sequenceNo))
{
throw new Exception("Not a valid sequence");
}
validationSequenceNumberResult = validator.ValidateSequenceNo(sequenceNo);
}
HtmlPageHelper htmlPageManipulation = new HtmlPageHelper();
string resultURL = htmlPageManipulation.findSequencesResult(sequenceNo, resultHTML);
Console.WriteLine("Google search result for KEYWORD {0} and SEQUENCE NO. {1} is '{2}'", keyword, sequenceNo, resultURL);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
Console.WriteLine(ex.InnerException);
}
Console.ReadKey();
}