using Step.Model.DatabaseModels;
using Step.Model.DTOModels;
using System;
using System.Collections.Generic;
using System.Linq;
using static Step.Model.Constants;
using static Step.Config.ServerConfig;

namespace Step.Database.Controllers
{
    public class UserSoftkeysController : IDisposable
    {
        private DatabaseContext dbCtx;

        public UserSoftkeysController()
        {
            // Initialize database context
            dbCtx = new DatabaseContext();
        }

        public void Dispose()
        {
            // Clear database context
            dbCtx.Dispose();
        }

        public List<DTOUserSoftKeyConfigModel> GetUserSoftkeyConfig()
        {
            List<DTOUserSoftKeyConfigModel> config = new List<DTOUserSoftKeyConfigModel>();

            foreach (var softKey in SoftKeysConfig)
            {
                // Create subkeys dictionary for group
                Dictionary<int, string> tmpSubKey = new Dictionary<int, string>();
                if (softKey.Type == SOFTKEY_TYPE.GROUP && softKey.SubKeys != null)
                {
                    tmpSubKey = new Dictionary<int, string>();
                    foreach (var subKey in softKey.SubKeys)
                    {
                        tmpSubKey.Add(subKey.Id, subKey.Text);
                    }
                }
                // Add to the category the new softkey
                config.Add(new DTOUserSoftKeyConfigModel()
                {
                    Id = softKey.Id,
                    Category = softKey.Category,
                    OperatorConfirmationNeeded = softKey.OperatorConfirmationNeeded,
                    Type = softKey.Type,
                    SubKeys = tmpSubKey
                });
            }

            return config;
        }

        public List<FavoriteUserSoftkeyModel> FindUserFavoriteSoftkeys(int userId)
        {
            return dbCtx.
                FavoriteUserSoftkeys
                .Where(x => x.UserId == userId)
                .ToList();
        }

        public List<DTOUserSoftKeyConfigModel> GetUserFavoriteSoftkeys(int userId)
        {
            // Find user softkey stored in the database
            List<FavoriteUserSoftkeyModel> favoriteKey = FindUserFavoriteSoftkeys(userId);
            // Get config
            List<DTOUserSoftKeyConfigModel> userSoftkey = GetUserSoftkeyConfig();

            return userSoftkey
                .Where(x =>
                    favoriteKey.Any(y => y.SoftkeyId == x.Id
                ))
                .ToList();
        }

        public List<DTOUserSoftKeyConfigModel> InsertUserSoftkeyModel(List<uint> softKeyIds, int userId)
        {
            List<FavoriteUserSoftkeyModel> softKeys = new List<FavoriteUserSoftkeyModel>();
            // Create new list with db models
            foreach (int softKeyId in softKeyIds)
            {
                softKeys.Add(new FavoriteUserSoftkeyModel()
                {
                    UserId = userId,
                    SoftkeyId = softKeyId
                });
            }

            // Add list to database
            dbCtx.FavoriteUserSoftkeys.AddRange(softKeys);
            dbCtx.SaveChanges();

            return GetUserFavoriteSoftkeys(userId);
        }

        public void DeleteUserSoftkeyModel(int userId)
        {
            // Get user favorite softkeys
            List<FavoriteUserSoftkeyModel> softKeys = FindUserFavoriteSoftkeys(userId);

            foreach (FavoriteUserSoftkeyModel sofkey in softKeys)
            {
                // Delete
                dbCtx.FavoriteUserSoftkeys.Remove(sofkey);
            }
            // Save database context
            dbCtx.SaveChanges();
        }
    }
}