57 lines
1.6 KiB
C#
57 lines
1.6 KiB
C#
using ApplicationServices;
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using CommandLine;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace LibationCli.Options;
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[Verb("search", HelpText = "Search for books in your library")]
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internal class SearchOptions : OptionsBase
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{
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[Option('n', Default = 10, HelpText = "Number of search results per page")]
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public int NumResultsPerPage { get; set; }
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[Value(0, MetaName = "query", Required = true, HelpText = "Lucene search string")]
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public IEnumerable<string> Query { get; set; }
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protected override Task ProcessAsync()
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{
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var query = string.Join(" ", Query).Trim('\"');
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var results = SearchEngineCommands.Search(query).Docs.ToList();
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Console.WriteLine($"Found {results.Count} matching results.");
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string nextPrompt = "Press any key for the next " + NumResultsPerPage + " results or Esc for all results";
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bool waitForNextBatch = true;
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for (int i = 0; i < results.Count; i += NumResultsPerPage)
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{
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var sb = new StringBuilder();
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for (int j = i; j < int.Min(results.Count, i + NumResultsPerPage); j++)
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sb.AppendLine(getDocDisplay(results[j].Doc));
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Console.Write(sb.ToString());
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if (waitForNextBatch)
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{
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Console.Write(nextPrompt);
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waitForNextBatch = Console.ReadKey(intercept: true).Key != ConsoleKey.Escape;
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ReplaceConsoleText(Console.Out, nextPrompt.Length, "");
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Console.CursorLeft = 0;
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}
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}
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return Task.CompletedTask;
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}
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private static string getDocDisplay(Lucene.Net.Documents.Document doc)
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{
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var title = doc.GetField("title");
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var id = doc.GetField("_ID_");
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return $"[{id.StringValue}] - {title.StringValue}";
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}
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}
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