using SchoolContracts.BusinessLogicsContracts;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SchoolBusinessLogic.BusinessLogics
{
	/// <summary>
	/// Заглушка для роли сотрудника
	/// </summary>
	public class EmployeeRoleImitationaLogic : IEmployeeRoleImitationaLogic
	{
		private readonly IEmployeeLogic _employeeLogic;
		private readonly ILessonLogic _lessonLogic;
		private readonly IExpenseLogic _ExpenseLogic;
		private readonly ICircleLogic _circleLogic;
		private readonly ICircleExpenseLogic _circleExpenseLogic;

		public EmployeeRoleImitationaLogic(IEmployeeLogic employeeLogic,
			ILessonLogic lessonLogic, IExpenseLogic ExpenseLogic,
			ICircleLogic circleLogic, ICircleExpenseLogic circleExpenseLogic)
		{
			_employeeLogic = employeeLogic;
			_lessonLogic = lessonLogic;
			_ExpenseLogic = ExpenseLogic;
			_circleLogic = circleLogic;
			_circleExpenseLogic = circleExpenseLogic;
		}
		private bool GenerateEmployeeData()
		{
			if(_employeeLogic.ReadList(null)?.Count != 0 )
			{
				return false;
			}
			using (StreamReader sr = new("employees.txt"))
			{
				string? currentString;
				while ((currentString = sr.ReadLine()) != null)
				{
					var employeeRecData = currentString.Split(',');
					_employeeLogic.Create(new()
					{
						EmployeeEmail = employeeRecData[0],
						EmployeePassword = employeeRecData[1],
						EmployeeName = employeeRecData[2],
						EmployeePhone = employeeRecData[3]
					});
				}
			}
			return true;
		}
		private bool GenerateLessonData()
		{
			if(_lessonLogic.ReadList(null)?.Count != 0)
			{
				return false;
			}
			using (StreamReader sr = new("lessons.txt"))
			{
				string? currentString;
				while ((currentString = sr.ReadLine()) != null)
				{
					var lessonRecData = currentString.Split(',');
					_lessonLogic.Create(new()
					{
						LessonName = Convert.ToString(lessonRecData[0]),
						LessonPrice = Convert.ToInt32(lessonRecData[1])
					});
				}
			}
			return true;
		}
		public bool GenerateExpense()
		{
			if (_ExpenseLogic.ReadList(null)?.Count != 0)
			{
				return false;
			}
			using (StreamReader sr = new("expenses.txt"))
			{
				string? currentString;
				while ((currentString = sr.ReadLine()) != null)
				{
					var expenseRecData = currentString.Split(',');
					_ExpenseLogic.Create(new()
					{
						ExpenseName = Convert.ToString(expenseRecData[0]),
						Sum = Convert.ToDouble(expenseRecData[1]),
						Count = Convert.ToInt32(expenseRecData[2])
					});
				}
			}
			return true;
		}
		public bool GenerateCircleExpense()
		{
			var ExpenseList = _ExpenseLogic.ReadList(null);
			if (ExpenseList == null)
			{
				return false;
			}
			if (ExpenseList.Count == 0)
			{
				return false;
			}
			var CircleList = _circleLogic.ReadList(null);
			if (CircleList == null)
			{
				return false;
			}
			if (CircleList.Count == 0)
			{
				return false;
			}
			Random rnd = new Random();
			for (int i = 0; i < 2; i++)
			{
				_circleExpenseLogic.Create(new()
				{
					ExpenseId = rnd.Next(0, ExpenseList.Count),
					CircleId = rnd.Next(0, CircleList.Count)
				});
			}
			return true;
		}
	}
}