using System;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.Extensions.Logging;
using TOOHUCardAPI.Data.Enums;
using TOOHUCardAPI.Data.Models;
using TOOHUCardAPI.Data.Repositories;

namespace TOOHUCardAPI.Data.Services
{
    public class UserService
    {
        private readonly ILogger<UserService> _logger;
        private readonly UserRepository _userRepository;

        public UserService(ILogger<UserService> logger, UserRepository userRepository)
        {
            _logger = logger;
            _userRepository = userRepository;
        }

        public async Task<User> LoginUser(long steamId)
        {
            _logger.LogInformation("User {SteamId} just logged in", steamId);
            User user = await _userRepository.GetOrCreateUser(steamId);
            if (user.LastDailyLoginBonus.AddDays(1) <= DateTime.Now)
            {
                user = await HandleDailyLoginBonus(user);
            }

            return user;
        }

        private async Task<User> HandleDailyLoginBonus(User user)
        {
            int dailyBonus = user.PetLevel + 1;
            user.KeyTotal += dailyBonus;
            user.LastDailyLoginBonus = DateTime.Now;;
            await _userRepository.UpdateUser(user);
            _logger.LogInformation("User {SteamId} received a daily login bonus. Keys earned: {DailyKeyBonus}. New Key total: {KeyTotal}", user.SteamId, dailyBonus, user.KeyTotal);
            return user;
        }

        public async Task SaveCardGroup(long steamId, string groupKey, string groupData)
        {
            User user = await _userRepository.GetUser(steamId);

            EncodedCardGroup group = user.EncodedCardGroups.FirstOrDefault(group => group.GroupKey == groupKey) ?? new EncodedCardGroup()
            {
                GroupKey = groupKey
            };
            group.EncodedString = groupData;
            user.EncodedCardGroups = user.EncodedCardGroups.Where(group2 => group.Id != group2.Id).Append(group).ToList();
            _logger.LogInformation("{SteamId} just stored a card group", user.SteamId);
            await _userRepository.UpdateUser(user);
        }

        public async Task SavePetData(long steamId, string petModel, string petEffect)
        {
            User user = await _userRepository.GetUser(steamId);
            user.PetModel = petModel;
            user.PetEffect = petEffect;
            await _userRepository.UpdateUser(user);
            _logger.LogInformation("User {SteamId} saved new pet data with model: {PetModel} and effect {PetEffect}", user.SteamId, petModel, petEffect);
        }

        public async Task UpdateUserAccountDetails(long steamid, long newAccountId, string newUsername)
        {
            User user = await _userRepository.GetUser(steamid);
            user.AccountId = newAccountId;
            user.Username = newUsername;
            await _userRepository.UpdateUser(user);
        }

        public async Task UpdateUserMaxWave(long steamid, int wave, RankType rankType)
        {
            User user = await _userRepository.GetUser(steamid);
            switch (rankType)
            {
                case RankType.Single:
                    user.MaxWave = Math.Max(wave, user.MaxWave);
                    break;
                case RankType.Team:
                    user.MaxTeamWave = Math.Max(wave, user.MaxTeamWave);
                    break;
                default:
                    throw new ArgumentOutOfRangeException(nameof(rankType), rankType, null);
            }
            
            await _userRepository.UpdateUser(user);
        }
    }
}