using LawCompanyContracts.BindingModels;
using LawCompanyContracts.BusinessLogicContracts;
using LawCompanyContracts.SearchModels;
using LawCompanyContracts.StoragesContracts;
using LawCompanyContracts.ViewModels;
using LawCompanyDataModels.Models;
using Microsoft.Extensions.Logging;

namespace LawCompanyBusinessLogic.BusinessLogics
{
    public class ConsultationLogic : IConsultationLogic
    {
        private readonly ILogger _logger;
        private readonly IConsultationStorage _consultationStorage;

        public ConsultationLogic(ILogger<ConsultationLogic> logger, IConsultationStorage consultationStorage)
        {
            _logger = logger;
            _consultationStorage = consultationStorage;
        }

        public bool Create(ConsultationBindingModel model)
        {
            CheckModel(model);
            if (_consultationStorage.Insert(model) == null)
            {
                _logger.LogWarning("Insert operation failed");
                return false;
            }
            return true;
        }

        public bool Delete(ConsultationBindingModel model)
        {
            CheckModel(model, false);
            _logger.LogInformation("Delete. Id:{Id}", model.Id);
            if (_consultationStorage.Delete(model) == null)
            {
                _logger.LogWarning("Delete operation failed");
                return false;
            }
            return true;
        }

        public ConsultationViewModel? ReadElement(ConsultationSearchModel model)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }
            _logger.LogInformation("ReadElement. ConsultationDate:{ConsultationDate}. Id:{Id}", model.ConsultationDate, model.Id);
            var element = _consultationStorage.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<ConsultationViewModel>? ReadList(ConsultationSearchModel? model)
        {
            _logger.LogInformation("ReadList. ConsultationDate:{ConsultationDate}.Id:{Id}", model?.ConsultationDate, model?.Id);
            var list = model == null ? _consultationStorage.GetFullList() : _consultationStorage.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(ConsultationBindingModel model)
        {
            CheckModel(model);
            if (_consultationStorage.Update(model) == null)
            {
                _logger.LogWarning("Update operation failed");
                return false;
            }
            return true;
        }
        public bool AddLawyerToConsultation(ConsultationSearchModel model, ILawyerModel lawyer)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }

            var element = _consultationStorage.GetElement(model);

            if (element == null)
            {
                return false;
            }

            element.ConsultationLawyers[lawyer.Id] = lawyer;

            _consultationStorage.Update(new()
            {
                Id = element.Id,
                Cost = element.Cost,
                ConsultationDate = element.ConsultationDate,
                CaseId = element.CaseId,
                ConsultationLawyers = element.ConsultationLawyers,
                GuarantorId = element.GuarantorId,
            });

            return true;
        }
        private void CheckModel(ConsultationBindingModel model, bool withParams = true)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }
            if (!withParams)
            {
                return;
            }
            if (string.IsNullOrEmpty((model.ConsultationDate).ToString()))
            {
                throw new ArgumentNullException("Не поставлено время", nameof(model.ConsultationDate));
            }

            _logger.LogInformation("Consultation. ConsultationDate:{ConsultationDate}. Id: {Id}  ", model.ConsultationDate, model.Id);
            var element = _consultationStorage.GetElement(new ConsultationSearchModel
            {
                ConsultationDate = model.ConsultationDate

            });
            if (element != null && element.Id != model.Id)
            {
                throw new InvalidOperationException("На данное время уже назначена консультация");
            }
        }
    }
}