using PlumbingRepairContracts.BindingModels;
using PlumbingRepairContracts.BusinessLogicsContracts;
using PlumbingRepairContracts.SearchModels;
using PlumbingRepairContracts.StoragesContracts;
using PlumbingRepairContracts.ViewModels;
using Microsoft.Extensions.Logging;

namespace PlumbingRepairBusinessLogic.BusinessLogic
{
    public class WorkLogic : IWorkLogic
    {
            private readonly ILogger _logger;

            private readonly IWorkStorage _workStorage;

            public WorkLogic(ILogger<WorkLogic> logger, IWorkStorage workStorage)
            {
                _logger = logger;
                _workStorage = workStorage;
            }

            public bool Create(WorkBindingModel model)
            {
                CheckModel(model);

                if (_workStorage.Insert(model) == null)
                {
                    _logger.LogWarning("Insert operation failed");
                    return false;
                }

                return true;
            }

            public bool Delete(WorkBindingModel model)
            {
                CheckModel(model, false);

                _logger.LogInformation("Delete. Id:{Id}", model.Id);

                if (_workStorage.Delete(model) == null)
                {
                    _logger.LogWarning("Delete operation failed");
                    return false;
                }

                return true;
            }

            public WorkViewModel? ReadElement(WorkSearchModel model)
            {
                if (model == null)
                {
                    throw new ArgumentNullException(nameof(model));
                }

                _logger.LogInformation("ReadElement. WorkName:{WorkName}.Id:{ Id}", model.WorkName, model.Id);

                var element = _workStorage.GetElement(model);

                if (element == null)
                {
                    _logger.LogWarning("ReadElement element not found");
                    return null;
                }

                _logger.LogInformation("ReadElement find. Id:{Id}", element.Id);

                return element;
            }

            public List<WorkViewModel>? ReadList(WorkSearchModel? model)
            {
                _logger.LogInformation("ReadList. WorkName:{WorkName}.Id:{ Id}", model?.WorkName, model?.Id);

                var list = model == null ? _workStorage.GetFullList() : _workStorage.GetFilteredList(model);

                if (list == null)
                {
                    _logger.LogWarning("ReadList return null list");
                    return null;
                }

                _logger.LogInformation("ReadList. Count:{Count}", list.Count);

                return list;
            }

            public bool Update(WorkBindingModel model)
            {
                CheckModel(model);

                if (_workStorage.Update(model) == null)
                {
                    _logger.LogWarning("Update operation failed");
                    return false;
                }

                return true;
            }

            private void CheckModel(WorkBindingModel model, bool withParams = true)
            {
                if (model == null)
                {
                    throw new ArgumentNullException(nameof(model));
                }

                if (!withParams)
                {
                    return;
                }

                if (string.IsNullOrEmpty(model.WorkName))
                {
                    throw new ArgumentNullException("Нет названия изделия", nameof(model.WorkName));
                }

                if (model.Price <= 0)
                {
                    throw new ArgumentNullException("Цена изделия должна быть больше 0", nameof(model.Price));
                }

                _logger.LogInformation("Work. WorkName:{WorkName}.Price:{ Cost}. Id: { Id}", model.WorkName, model.Price, model.Id);

                var element = _workStorage.GetElement(new WorkSearchModel
                {
                    WorkName = model.WorkName
                });

                if (element != null && element.Id != model.Id)
                {
                    throw new InvalidOperationException("Изделие с таким названием уже есть");
                }
            }
        }
}