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

namespace EmployeeManagmentBusinessLogic.BusinessLogic
{
    public class SalaryLogic : ISalaryLogic
    {
        private readonly ISalaryStorage _salaryStorage;

        public SalaryLogic(ISalaryStorage salaryStorage)
        {
            _salaryStorage = salaryStorage;
        }

        public List<SalaryViewModel> GetSalaries(SalarySearchModel model)
        {
            var salaries = model == null ? _salaryStorage.GetFullList() : _salaryStorage.GetFilteredList(model);
            return salaries.Select(s => new SalaryViewModel
            {
                Id = s.Id,
                CountHours = s.CountHours,
                PriceHour = s.PriceHour,
                Premium = s.Premium,
                Date = s.Date,
                Passed = s.Passed,
                EmployeeName = s.Employee.NameJob
            }).ToList();
        }

        public void CreateOrUpdate(SalaryBindingModel model)
        {
            if (model.Id.HasValue)
            {
                var existingSalary = _salaryStorage.GetElement(model.Id.Value);
                if (existingSalary == null)
                    throw new Exception("Зарплата не найдена");

                existingSalary.CountHours = model.CountHours;
                existingSalary.PriceHour = model.PriceHour;
                existingSalary.Premium = model.Premium;
                existingSalary.Date = model.Date;
                existingSalary.Passed = model.Passed;
                existingSalary.EmployeeId = model.EmployeeId;

                _salaryStorage.Update(existingSalary);
            }
            else
            {
                var newSalary = new Salary
                {
                    CountHours = model.CountHours,
                    PriceHour = model.PriceHour,
                    Premium = model.Premium,
                    Date = model.Date,
                    Passed = model.Passed,
                    EmployeeId = model.EmployeeId
                };
                _salaryStorage.Insert(newSalary);
            }
        }

        public void Delete(int id)
        {
            var salary = _salaryStorage.GetElement(id);
            if (salary == null)
                throw new Exception("Зарплата не найдена");
            _salaryStorage.Delete(id);
        }
    }
}