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

namespace PolyclinicBusinessLogic.BusinessLogics
{
    public class RecipeLogic : IRecipeLogic
    {

        private readonly ILogger logger;
        private readonly IRecipeStorage recipeStorage;

        public RecipeLogic(ILogger<RecipeLogic> logger, IRecipeStorage recipeStorage)
        {
            this.logger = logger;
            this.recipeStorage = recipeStorage;
        }
        public bool Create(RecipeBindingModel model)
        {
            CheckModel(model);
            if(recipeStorage.Insert(model) == null)
            {
                logger.LogWarning("Create operation failed");
                return false;
            }
            return true;
        }

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

        public RecipeViewModel? ReadElement(RecipeSearchModel model)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }
            logger.LogInformation("ReadElement. Comment:{Comment}.Id:{ Id}", model.Comment, model.Id);
            var element = recipeStorage.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<RecipeViewModel>? ReadList(RecipeSearchModel? model)
        {
            logger.LogInformation("ReadList. Comment:{Comment}. Id:{ Id}", model?.Comment, model?.Id);
            var list = model == null ? recipeStorage.GetFullList() : recipeStorage.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(RecipeBindingModel model)
        {
            CheckModel(model);
            if(recipeStorage.Update(model) == null)
            {
                logger.LogWarning("Update operation failed");
                return false;
            }
            return true;
        }

        private void CheckModel(RecipeBindingModel model, bool withParams = true)
        {
            if (model == null)
            {
                throw new ArgumentNullException(nameof(model));
            }
            if (!withParams)
            {
                return;
            }
            if(model.ProceduresCount <= 0)
            {
                throw new ArgumentNullException("Количество процедур не может быть равно нулю или быть меньше нуля", nameof(model));
            }
            logger.LogInformation("Recipe. Comment:{Comment}. Id: { Id}", model.Comment, model.Id);
        }
    }
}