using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Reflection;
using System.Text.RegularExpressions;
namespace checkhub.libhub
{
    public delegate bool processResult(object result);
    public static class hub
    {
        public static List <Type> findsubclass( Type type) 
        {
            List<Type>  types= new List<Type>();
            var asm = Assembly.GetAssembly(type);
            foreach (var t in asm.GetTypes()){
                if (t.IsSubclassOf(type))
                {
                    types.Add(t);
                    //Console.WriteLine("{0}", t.Name);
                }
            }
            return types;
        }
        public static MethodInfo[] getMethods(Type type)
        {
            return type.GetMethods();
        }

        public static List<object> 
            initObjects( ref Dictionary<string, object> param, List <Type> types  )
        { 
            var ret=new List<object>();
            foreach(var type in types)
            {
                var o=Activator.CreateInstance(type,  param);
                ret.Add(o);
            }
            return ret;
        }

        //a callback function
      
        public static bool callMethods(object obj, string filter="^Jifeng",processResult saverst=null ,bool debug=true )
        {
            Type t = obj.GetType();
            bool allsucceed = true;
            foreach(var method in getMethods(t))
            {
                Match match = Regex.Match(method.Name, filter);
                if (match.Success)
                {
                    var result = t.InvokeMember(method.Name,
                        BindingFlags.Public | BindingFlags.Instance | BindingFlags.InvokeMethod,
                        null, obj, null);
                    if (saverst!=null && ! saverst(result))
                        allsucceed = false;
                }

            }
            return allsucceed;
        }

        public static bool runAll(Type basetype, ref Dictionary<string, object> param)
        {
            List <Type> types = findsubclass(basetype);
            var objs = initObjects(ref param, types);
            bool allGood = true;
            foreach(var obj in objs)
            {
                if( !callMethods(obj))
                    allGood=false;
            }
            return allGood;
        }

    }

}