using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using QXS.ChatBot;
using System.Text.RegularExpressions;

namespace QXS.ChatBot.Examples
{
    class Program
    {
        static void Main(string[] args)
        {

            ChatBot cb = new ChatBot(
                new List<BotRule>()
                {
                    new ReplacementBotRule("repeat", 40, new Regex("(please )?repeat(?<sentence> .*)", RegexOptions.IgnoreCase), new string[] { "i repeat your sentence:$r$sentence$", "$s$BotName$ repeats your sentence:$r$sentence$"}),
                    new RandomAnswersBotRule("getfeeling", 40, new Regex("how do you feel", RegexOptions.IgnoreCase), new string[] {"i feel great", "i feel tired", "i feel awful", "i feel happy"}),
                    new BotRule(
                        Name: "var_dump",
                        Weight: 200, 
                        MessagePattern: new Regex("^var_?dump$", RegexOptions.IgnoreCase),
                        Process: delegate(Match match, ChatSessionInterface session) {
                            string answer = "Variables: \n";
                            foreach (string key in session.SessionStorage.Values.Keys)
                            {
                                answer += "  " + key + " = " + session.SessionStorage.Values[key] + "\n";
                            }
                            answer += "---\n";
                            answer += "History: \n";
                            int i=0;
                            foreach (string ruleName in session.GetRuleHistory())
                            {
                                answer += "  " + (++i) + ". " + ruleName + "\n";
                            }
                            return answer;
                        }
                    ),
                    new BotRule(
                        Name: "setbotname",
                        Weight: 10, 
                        MessagePattern: new Regex("(your name is|you are) (now )?(.*)", RegexOptions.IgnoreCase),
                        Process: delegate(Match match, ChatSessionInterface session) {
                            session.SessionStorage.Values["BotName"] = match.Groups[3].Value;
                            return "My name is now " + session.SessionStorage.Values["BotName"];
                        }
                    ),
                    new BotRule(
                        Name: "getbotname",
                        Weight: 10, 
                        MessagePattern: new Regex("(who are you|(what is|say) your name)", RegexOptions.IgnoreCase),
                        Process: delegate(Match match, ChatSessionInterface session) {
                            if (!session.SessionStorage.Values.ContainsKey("BotName"))
                            {
                                return "I do not have a name";
                            }
                            if (match.Value.ToLower() == "who are you") 
                            {
                                return "i am " + session.SessionStorage.Values["BotName"];
                            }
                            return "My name is " + session.SessionStorage.Values["BotName"];
                        }
                    ),
                    new BotRule(
                        Name: "setusername",
                        Weight: 10, 
                        MessagePattern: new Regex("my name is (now )?(.*)", RegexOptions.IgnoreCase),
                        Process: delegate(Match match, ChatSessionInterface session) {
                            session.SessionStorage.Values["UserName"] = match.Groups[2].Value;
                            return "Hi " + session.SessionStorage.Values["UserName"];
                        }
                    ),
                    new BotRule(
                        Name: "getusername",
                        Weight: 20, 
                        MessagePattern: new Regex("(what is|say) my name", RegexOptions.IgnoreCase),
                        Process: delegate(Match match, ChatSessionInterface session) {
                            if (!session.SessionStorage.Values.ContainsKey("UserName"))
                            {
                                return "Sorry, but you have not told my your name";
                            }
                            return "Your name is " + session.SessionStorage.Values["UserName"];
                        }
                    ),
                    new BotRule(
                        Name: "greet",
                        Weight: 1, 
                        MessagePattern: new Regex("(hi|hello)", RegexOptions.IgnoreCase),
                        Process: delegate(Match match, ChatSessionInterface session) {
                            string answer = "Hi";

                            if (session.SessionStorage.Values.ContainsKey("UserName"))
                            {
                                answer += " " + session.SessionStorage.Values["UserName"];
                            }
                            answer += "!";
                            if (session.SessionStorage.Values.ContainsKey("BotName"))
                            {
                                answer += " I'm " + session.SessionStorage.Values["BotName"];
                            }
                            return answer;
                        }

                    )
                }
            );

            cb.talkWith(new ConsoleChatSession());
        }
    }
}