using MagicCarpetContracts.BuisnessLogicContracts;
using MagicCarpetContracts.DataModels;
using MagicCarpetContracts.Exceptions;
using MagicCarpetContracts.Extensions;
using MagicCarpetContracts.StoragesContracts;
using Microsoft.Extensions.Logging;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.Json;
using System.Threading.Tasks;

namespace MagicCarpetBusinessLogic.Implementations;

public class TourBusinessLogicContract(ITourStorageContract tourStorageContract, ILogger logger) : ITourBusinessLogicContract
{
    private readonly ILogger _logger = logger;
    private readonly ITourStorageContract _tourStorageContract = tourStorageContract;
    public List<TourDataModel> GetAllTours()
    {
        _logger.LogInformation("GetAllTours");
        return _tourStorageContract.GetList() ?? throw new NullListException();
    }

    public List<TourHistoryDataModel> GetTourHistoryByTour(string tourId)
    {
        _logger.LogInformation("GetTourHistoryByTour for {tourId}", tourId);
        if (tourId.IsEmpty())
        {
            throw new ArgumentNullException(nameof(tourId));
        }
        if (!tourId.IsGuid())
        {
            throw new ValidationException("The value in the field tourId is not a unique identifier.");
        }
        return _tourStorageContract.GetHistoryByTourId(tourId) ?? throw new NullListException();
    }

    public TourDataModel GetTourByData(string data)
    {
        _logger.LogInformation("Get element by data: {data}", data);
        if (data.IsEmpty())
        {
            throw new ArgumentNullException(nameof(data));
        }
        if (data.IsGuid())
        {
            return _tourStorageContract.GetElementById(data) ?? throw new ElementNotFoundException(data);
        }
        return _tourStorageContract.GetElementByName(data) ?? throw new ElementNotFoundException(data);
    }

    public void InsertTour(TourDataModel tourDataModel)
    {
        _logger.LogInformation("New data: {json}", JsonSerializer.Serialize(tourDataModel));
        ArgumentNullException.ThrowIfNull(tourDataModel);
        tourDataModel.Validate();
        _tourStorageContract.AddElement(tourDataModel);
    }

    public void UpdateTour(TourDataModel tourDataModel)
    {
        _logger.LogInformation("Update data: {json}", JsonSerializer.Serialize(tourDataModel));
        ArgumentNullException.ThrowIfNull(tourDataModel);
        tourDataModel.Validate();
        _tourStorageContract.UpdElement(tourDataModel);
    }

    public void DeleteTour(string id)
    {
        _logger.LogInformation("Delete by id: {id}", id);
        if (id.IsEmpty())
        {
            throw new ArgumentNullException(nameof(id));
        }
        if (!id.IsGuid())
        {
            throw new ValidationException("Id is not a unique identifier");
        }
        _tourStorageContract.DelElement(id);
    }
}