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                 public override bool AnswerInPublic
  15                 {
  16                         get { return false; }
  17                 }
  18
  19                 [CommandParameter("Name", "The command name to show help")]
  20         public string CommandName
  21         {
  22             get { return Parameters; }
  23             set { Parameters = value; }
  24         }
  25
  26         public override void ExecuteCommand()
  27         {
  28             if (string.IsNullOrEmpty(CommandName))
  29             {
  30                 Say("I support the following commands:");
  31
  32                 foreach (CommandBuilder command in TechBot.Commands)
  33                 {
  34                     Say("{0}{1} - {2}",
  35                         Settings.Default.CommandPrefix,
  36                         command.Name,
  37                         command.Description);
  38                 }
  39             }
  40             else
  41             {
  42                 CommandBuilder cmdBuilder = TechBot.Commands.Find(CommandName);
  43
  44                 if (cmdBuilder == null)
  45                 {
  46                     Say("Command '{0}' is not recognized. Type '!help' to show all available commands", CommandName);
  47                 }
  48                 else
  49                 {
  50                     Say("Command '{0}' help:", CommandName);
  51                     Say();
  52                     Say(cmdBuilder.Description);
  53                     Say();
  54                     Say(cmdBuilder.Help);
  55                     Say();
  56                     Say("Parameters :");
  57                     Say();
  58
  59                     PropertyInfo[] propertyInfoArray = cmdBuilder.Type.GetProperties(BindingFlags.Public | BindingFlags.Instance);
  60                     foreach (PropertyInfo propertyInfo in propertyInfoArray)
  61                     {
  62                         CommandParameterAttribute[] commandAttributes = (CommandParameterAttribute[])
  63                             Attribute.GetCustomAttributes(propertyInfo, typeof(CommandParameterAttribute));
  64
  65                         foreach (CommandParameterAttribute parameter in commandAttributes)
  66                         {
  67                             Say("\t-{0}: [{1}]",
  68                                 parameter.Name,
  69                                 parameter.Description);
  70                         }
  71                     }
  72
  73                     Say();
  74                 }
  75             }
  76         }
  77         }
  78 }