using Microsoft.Extensions.Logging;
using STOContracts.BindingModels;
using STOContracts.BusinessLogicContracts;
using STOContracts.SearchModels;
using STOContracts.StorageContracts;
using STOContracts.ViewModels;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace STOBusinessLogic
{
    public class WorkLogic : IWorkLogic
    {
        private readonly ILogger _logger;
        private readonly IWorkStorage _WorkStorage;
        public WorkLogic(ILogger<WorkLogic> logger, IWorkStorage WorkStorage)
        {
            _logger = logger;
            _WorkStorage = WorkStorage;
        }

        public List<WorkViewModel>? ReadList(WorkSearchModel? model)
        {
            _logger.LogInformation("ReadList.Id:{ Id}", 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 WorkViewModel? ReadElement(WorkSearchModel model)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }
            _logger.LogInformation("ReadList.Id:{ Id}", 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 bool Create(WorkBindingModel model)
        {
            CheckModel(model);
            if (_WorkStorage.Insert(model) == null)
            {
                _logger.LogWarning("Insert operation failed");
                return false;
            }
            return true;
        }

        public bool Update(WorkBindingModel model)
        {
            CheckModel(model);
            if (_WorkStorage.Update(model) == null)
            {
                _logger.LogWarning("Update 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;
        }

        private void CheckModel(WorkBindingModel model, bool withParams =
        true)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }
            if (!withParams)
            {
                return;
            }
            _logger.LogInformation("ReadList.Id:{ Id}", model.Id);
        }
    }
}