using Microsoft.Extensions.Logging;
using System.Text.Json;
using TheCyclopsContracts.BusinessLogicContracts;
using TheCyclopsContracts.DataModels;
using TheCyclopsContracts.Exceptions;
using TheCyclopsContracts.Extensions;
using TheCyclopsContracts.StoragesContracts;

namespace TheCyclopsBusinessLogic.Implementations;

internal class EmployeeBusinessLogicContract(IEmployeeStorageContract employeeStorageContract, ILogger logger) : IEmployeeBusinessLogicContract
{
    private readonly ILogger _logger = logger;
    private readonly IEmployeeStorageContract _employeeStorageContract = employeeStorageContract;

    public List<EmployeeDataModel> GetAllEmployees(bool onlyActive = true)
    {
        _logger.LogInformation("GetAllEmployees params: {onlyActive}", onlyActive);
        return _employeeStorageContract.GetList(onlyActive) ?? throw new NullListException();
    }

    public List<EmployeeDataModel> GetAllEmployeesByPost(string postId, bool onlyActive = true)
    {
        _logger.LogInformation("GetAllEmployees params: {postId}, {onlyActive},", postId, onlyActive);
        if (postId.IsEmpty())
        {
            throw new ArgumentNullException(nameof(postId));
        }
        if (!postId.IsGuid())
        {
            throw new ValidationException("The value in the field postId is not a unique identifier.");
        }
        return _employeeStorageContract.GetList(onlyActive, postId) ?? throw new NullListException();
    }

    public List<EmployeeDataModel> GetAllEmployeesByBirthDate(DateTime fromDate, DateTime toDate, bool onlyActive = true)
    {
        _logger.LogInformation("GetAllEmployees params: {onlyActive}, {fromDate}, {toDate}", onlyActive, fromDate, toDate);
        if (fromDate.IsDateNotOlder(toDate))
        {
            throw new IncorrectDatesException(fromDate, toDate);
        }
        return _employeeStorageContract.GetList(onlyActive, fromBirthDate: fromDate, toBirthDate: toDate) ?? throw new NullListException();
    }

    public List<EmployeeDataModel> GetAllEmployeesByEmploymentDate(DateTime fromDate, DateTime toDate, bool onlyActive = true)
    {
        _logger.LogInformation("GetAllEmployees params: {onlyActive}, {fromDate}, {toDate}", onlyActive, fromDate, toDate);
        if (fromDate.IsDateNotOlder(toDate))
        {
            throw new IncorrectDatesException(fromDate, toDate);
        }
        return _employeeStorageContract.GetList(onlyActive, fromEmploymentDate: fromDate, toEmploymentDate: toDate) ?? throw new NullListException();
    }

    public EmployeeDataModel GetEmployeeByData(string data)
    {
        _logger.LogInformation("Get element by data: {data}", data);
        if (data.IsEmpty())
        {
            throw new ArgumentNullException(nameof(data));
        }
        if (data.IsGuid())
        {
            return _employeeStorageContract.GetElementById(data) ?? throw new ElementNotFoundException(data);
        }
        return _employeeStorageContract.GetElementByFIO(data) ?? throw new ElementNotFoundException(data);
    }

    public void InsertEmployee(EmployeeDataModel employeeDataModel)
    {
        _logger.LogInformation("New data: {json}", JsonSerializer.Serialize(employeeDataModel));
        ArgumentNullException.ThrowIfNull(employeeDataModel);
        employeeDataModel.Validate();
        _employeeStorageContract.AddElement(employeeDataModel);
    }

    public void UpdateEmployee(EmployeeDataModel employeeDataModel)
    {
        _logger.LogInformation("Update data: {json}", JsonSerializer.Serialize(employeeDataModel));
        ArgumentNullException.ThrowIfNull(employeeDataModel);
        employeeDataModel.Validate();
        _employeeStorageContract.UpdElement(employeeDataModel);
    }

    public void DeleteEmployee(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");
        }
        _employeeStorageContract.DelElement(id);
    }
}