using System;

using System.Collections.Generic;

using ServiceStack.ServiceInterface;

using ServiceStack.ServiceInterface.ServiceModel;

using ServiceStack.Text;

namespace Docs.Logic

{

public class Search

{

public string Query { get; set; }

}

public class SearchResponse : IHasResponseStatus

{

public SearchResponse()

{

this.Results = new List<Page>();

}

public string Query { get; set; }

public List<Page> Results { get; set; }

public ResponseStatus ResponseStatus { get; set; }

}

public class SearchService : Service

{

public PageManager PageManager { get; set; }

public object Get(Search request)

{

var results = new List<Page>();

foreach (var page in PageManager.Pages)

{

var contents = page.GetContent().StripMarkdownMarkup();

var pos = 0;

if ((pos = contents.IndexOf(request.Query, StringComparison.CurrentCultureIgnoreCase)) != -1)

{

var resultPage = page.DeepClone();

var snippet = GetSnippet(contents, pos);

resultPage.Content = snippet.Replace(request.Query, "**" + request.Query + "**");

results.Add(resultPage);

}

}

return new SearchResponse {

Query = request.Query,

Results = results

};

}

private static string GetSnippet(string contents, int pos)

{

var startPos = pos - 50;

var endPos = pos + 100;

if (endPos >= contents.Length)

{

endPos = contents.Length - 1;

startPos = endPos - 100;

}

if (startPos < 0) startPos = 0;

if (contents[startPos] != ' ')

{

var wordBoundaryPos = contents.LastIndexOf(' ', startPos);

if (wordBoundaryPos != -1) startPos = wordBoundaryPos + 1;

}

if (contents[endPos] != ' ')

{

var wordBoundaryPos = contents.IndexOf(' ', endPos);

if (wordBoundaryPos != -1) endPos = wordBoundaryPos;

}

var snippet = contents.Substring(startPos, endPos - startPos);

return snippet;

}

}

}