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         private string m_CommandName = null;
  11
  12         public HelpCommand()
  13                 {
  14                 }
  15
  16         [CommandParameter("Name", "The command name to show help")]
  17         public string CommandName
  18         {
  19             get { return Parameters; }
  20             set { Parameters = value; }
  21         }
  22
  23         public override void ExecuteCommand()
  24         {
  25             if (CommandName == null)
  26             {
  27                 Say("I support the following commands:");
  28
  29                 foreach (CommandBuilder command in TechBot.Commands)
  30                 {
  31                     Say("{0}{1} - {2}",
  32                         Settings.Default.CommandPrefix,
  33                         command.Name,
  34                         command.Description);
  35                 }
  36             }
  37             else
  38             {
  39                 CommandBuilder cmdBuilder = TechBot.Commands.Find(CommandName);
  40
  41                 if (cmdBuilder == null)
  42                 {
  43                     Say("Command '{0}' is not recognized. Type '!help' to show all available commands", CommandName);
  44                 }
  45                 else
  46                 {
  47                     Say("Command '{0}' help:", CommandName);
  48                     Say();
  49                     Say(cmdBuilder.Description);
  50                     Say();
  51                     Say(cmdBuilder.Help);
  52                     Say();
  53                     Say("Parameters :");
  54                     Say();
  55
  56                     PropertyInfo[] propertyInfoArray = cmdBuilder.Type.GetProperties(BindingFlags.Public | BindingFlags.Instance);
  57                     foreach (PropertyInfo propertyInfo in propertyInfoArray)
  58                     {
  59                         CommandParameterAttribute[] commandAttributes = (CommandParameterAttribute[])
  60                             Attribute.GetCustomAttributes(propertyInfo, typeof(CommandParameterAttribute));
  61
  62                         foreach (CommandParameterAttribute parameter in commandAttributes)
  63                         {
  64                             Say("\t-{0}: [{1}]",
  65                                 parameter.Name,
  66                                 parameter.Description);
  67                         }
  68                     }
  69
  70                     Say();
  71                 }
  72             }
  73         }
  74         }
  75 }