irc/TechBot/TechBot.Library/Commands/HelpCommand.cs

   1 using System;
   2 using System.Reflection;
   3 using System.Collections;
   4
   5 namespace TechBot.Library
   6 {
   7     [Command("help", Help = "!help or !help -name:[CommandName]", Description = "Shows this help , type 'help -name:[CommandName]'")]
   8         public class HelpCommand : Command
   9         {
  10         public HelpCommand()
  11                 {
  12                 }
  13
  14         [CommandParameter("Name", "The command name to show help")]
  15         public string CommandName
  16         {
  17             get { return Parameters; }
  18             set { Parameters = value; }
  19         }
  20
  21         public override void ExecuteCommand()
  22         {
  23             if (string.IsNullOrEmpty(CommandName))
  24             {
  25                 Say("I support the following commands:");
  26
  27                 foreach (CommandBuilder command in TechBot.Commands)
  28                 {
  29                     Say("{0}{1} - {2}",
  30                         Settings.Default.CommandPrefix,
  31                         command.Name,
  32                         command.Description);
  33                 }
  34             }
  35             else
  36             {
  37                 CommandBuilder cmdBuilder = TechBot.Commands.Find(CommandName);
  38
  39                 if (cmdBuilder == null)
  40                 {
  41                     Say("Command '{0}' is not recognized. Type '!help' to show all available commands", CommandName);
  42                 }
  43                 else
  44                 {
  45                     Say("Command '{0}' help:", CommandName);
  46                     Say();
  47                     Say(cmdBuilder.Description);
  48                     Say();
  49                     Say(cmdBuilder.Help);
  50                     Say();
  51                     Say("Parameters :");
  52                     Say();
  53
  54                     PropertyInfo[] propertyInfoArray = cmdBuilder.Type.GetProperties(BindingFlags.Public | BindingFlags.Instance);
  55                     foreach (PropertyInfo propertyInfo in propertyInfoArray)
  56                     {
  57                         CommandParameterAttribute[] commandAttributes = (CommandParameterAttribute[])
  58                             Attribute.GetCustomAttributes(propertyInfo, typeof(CommandParameterAttribute));
  59
  60                         foreach (CommandParameterAttribute parameter in commandAttributes)
  61                         {
  62                             Say("\t-{0}: [{1}]",
  63                                 parameter.Name,
  64                                 parameter.Description);
  65                         }
  66                     }
  67
  68                     Say();
  69                 }
  70             }
  71         }
  72         }
  73 }