using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using TOOHUCardAPI.Data;

namespace TOOHUCardAPI.Controllers
{
    [Route("api/[controller]")]
    [ApiController]
    public class PlayerDataController : ControllerBase
    {
        private delegate Task<object> EndpointHandler(string requestBody);
        // Mapping of method => handler
        private Dictionary<string, EndpointHandler> registeredEndpointHandlers;

        private void RegisterEndpointHandlers()
        {
            MethodInfo[] methods = typeof(PlayerDataController).GetMethods();
            registeredEndpointHandlers = methods
                .Aggregate(new Dictionary<string, EndpointHandler>(), (handlers, m) =>
                {
                    Attribute attr = m.GetCustomAttribute(typeof(EndpointHandlerAttribute), false);
                    if (attr != null)
                    {
                        EndpointHandlerAttribute e = (EndpointHandlerAttribute) attr;
                        handlers.Add(e.Method, (EndpointHandler)m.CreateDelegate(typeof(EndpointHandler), this));
                    }
                    return handlers;
                });
        }
        
        public PlayerDataController()
        {
            RegisterEndpointHandlers();
            
        }

        /**
         * The game uses a single endpoint for player data.
         * The object they send has a method field that's used to decide what's being done
         * So let's use a single entry point and redirect based on that
         */
        [HttpPost]
        public async Task<object> EntryPoint()
        {
            
            return null;
        }
        
    }
}