using System;
using System.Collections.Generic;
using System.Transactions;
using BlueWest.Collections;
using BlueWest.Data;
using PerformanceSolution.Tools;

namespace PerformanceSolution.Data
{
    public static class MemoryData
    {
        public static UserList UserList = new UserList(new FastDictionary<int, User>());

        private const string SavePathName = "userData";

        private static bool DEBUG = true;

        static MemoryData()
        {
            if (DEBUG)
            {
                UserList = GenerateMockData();
                SaveUserList();
            }
            
            LoadUsers();
        }

        public static void SaveUserList(UserList userList)
        {
            UserList = userList;
            SaveLoadManager.Save(UserList, SavePathName);
        }

        public static void LoadUsers()
        {
            UserList = SaveLoadManager.Load<UserList>(SavePathName);
            UserList ??= new UserList(new FastDictionary<int, User>());
        }

        public static Transaction GetTransactionById(int userId, int transactionId) => UserList.GetTransactionById(userId, transactionId);


        private static void SaveUserList() => SaveUserList(UserList);

        public static User AddOrModifyUser(UserUpdateDto userUpdateDto, int userId = -1)
        {
            return UserList.AddUser(userId, userUpdateDto);

        }

        private static UserList GenerateMockData()
        {

            
            var transactions = new FastList<FinanceTransaction>();
            var financeTransaction = new FinanceTransaction(0, 1, FinanceTransactionType.Buy, FinanceSymbol.BTC_EUR, 0,
                0, 0.1, DateTime.Now);
            transactions.Add(financeTransaction);

            var u = new User(1, "Rui Sousa", "Sagres", "NOADD", "NOADD", 0, 0, transactions);
            var list = new FastDictionary<int, User>(10);
            list.Add(0, u);
            
            return new UserList(list);
        }

        public static User? GetUserById(int userId)
        {
            return UserList.GetUserById(userId);
        }
        
        public static FastList<FinanceTransaction> GetUserTransactions(int userId)
        {
            return UserList.GetUserTransactions(userId);
        }
    }
}