using Contracts.DTO;
using Contracts.Mappers;
using Contracts.Repositories;
using Contracts.SearchModels;
using Contracts.ViewModels;
using Services.Support.Exceptions;

namespace Contracts.Services;

public class SpendingGroupService : ISpendingGroupService
{
    private readonly ISpendingGroupRepo _spendingGroupRepo;

    public SpendingGroupService(ISpendingGroupRepo spendingGroupRepo)
    {
        _spendingGroupRepo = spendingGroupRepo;
    }

    public async Task<SpendingGroupViewModel> Create(SpendingGroupDto model)
    {
        var group = await _spendingGroupRepo.Create(model);
        return group.ToView();
    }

    public async Task<SpendingGroupViewModel> Delete(SpendingGroupSearch search)
    {
        var group = await _spendingGroupRepo.Delete(search);
        if (group == null)
        {
            throw new EntityNotFoundException("При удалении не получилось найти группу");
        }

        return group.ToView();
    }

    public async Task<SpendingGroupViewModel> GetDetails(SpendingGroupSearch search)
    {
        var group = await _spendingGroupRepo.Get(search);
        if (group == null)
        {
            throw new EntityNotFoundException("Не удалось найти группу по таким параметрам");
        }

        return group.ToView();
    }

    public async Task<IEnumerable<SpendingGroupViewModel>> GetList(SpendingGroupSearch? search = null)
    {
        var groups = await _spendingGroupRepo.GetList(search);
        return groups.Select(x => x.ToView()).ToList();
    }

    public async Task<SpendingGroupViewModel> Update(SpendingGroupDto model)
    {
        var group = await _spendingGroupRepo.Update(model);
        if (group == null)
        {
            throw new EntityNotFoundException("При обновлении не получилось найти группу");
        }
        
        return group.ToView();
    }
}