using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net.Http;
using System.Reflection;
using System.Threading.Tasks;
using AutoMapper;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Logging;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using TOOHUCardAPI.Data;
using TOOHUCardAPI.Data.Models;
using TOOHUCardAPI.Data.Repositories;
using TOOHUCardAPI.DTO;

namespace TOOHUCardAPI.Controllers
{
    [Route("api/[controller]")]
    [ApiController]
    public class PlayerDataController : MethodBasedController
    {
        private readonly ILogger<PlayerDataController> _logger;
        private readonly UserRepository _userRepository;
        private readonly IMapper _mapper;

        public PlayerDataController(ILogger<PlayerDataController> logger, UserRepository userRepository, IMapper mapper)
        {
            _logger = logger;
            _userRepository = userRepository;
            _mapper = mapper;
        }

        /**
         * 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([FromBody] object bodyObj)
        {
            string body = JsonConvert.SerializeObject(bodyObj);
            JObject request = JObject.Parse(body);
            string method = request["method"].ToString();
            return await InvokeEndpointHandlerForMethod<PlayerDataController>(this, method, body);
        }

        [EndpointHandler("get")]
        private async Task<object> Get(string body)
        {
            PlayerDataGetRequestObject requestObject = JsonConvert.DeserializeObject<PlayerDataGetRequestObject>(body);
            Dictionary<string, User> users = requestObject.Ids.Aggregate(new Dictionary<string, User>(),
                (dictionary, pair) =>
                {
                    User user = _userRepository.GetOrCreateUser(pair.Value);
                    dictionary[pair.Key] = user;
                    return dictionary;
                });
            PlayerDataGetResponseObject response = new PlayerDataGetResponseObject(users, _mapper);

            return response;
        }
        
    }
}