using Grand.Business.Core.Interfaces.Customers;
using Grand.Data;
using Grand.Domain.Customers;
using Grand.Infrastructure.Caching;
using Grand.Infrastructure.Caching.Constants;
using Grand.Infrastructure.Extensions;
using MediatR;

namespace Grand.Business.Customers.Services;

public class SalesEmployeeService : ISalesEmployeeService
{
    public SalesEmployeeService(
        IRepository<SalesEmployee> salesEmployeeRepository,
        IMediator mediator,
        ICacheBase cacheBase)
    {
        _salesEmployeeRepository = salesEmployeeRepository;
        _mediator = mediator;
        _cacheBase = cacheBase;
    }

    /// <summary>
    ///     Gets a sales employee
    /// </summary>
    /// <param name="salesEmployeeId">The sales employee identifier</param>
    /// <returns>SalesEmployee</returns>
    public virtual Task<SalesEmployee> GetSalesEmployeeById(string salesEmployeeId)
    {
        var key = string.Format(CacheKey.SALESEMPLOYEE_BY_ID_KEY, salesEmployeeId);
        return _cacheBase.GetAsync(key, () => _salesEmployeeRepository.GetByIdAsync(salesEmployeeId));
    }

    /// <summary>
    ///     Gets all sales employees
    /// </summary>
    /// <returns>Warehouses</returns>
    public virtual async Task<IList<SalesEmployee>> GetAll()
    {
        return await _cacheBase.GetAsync(CacheKey.SALESEMPLOYEE_ALL, async () =>
        {
            var query = from se in _salesEmployeeRepository.Table
                orderby se.DisplayOrder
                select se;
            return await Task.FromResult(query.ToList());
        });
    }

    /// <summary>
    ///     Inserts a sales employee
    /// </summary>
    /// <param name="salesEmployee">Sales Employee</param>
    public virtual async Task InsertSalesEmployee(SalesEmployee salesEmployee)
    {
        ArgumentNullException.ThrowIfNull(salesEmployee);

        await _salesEmployeeRepository.InsertAsync(salesEmployee);

        //clear cache
        await _cacheBase.RemoveByPrefix(CacheKey.SALESEMPLOYEE_PATTERN_KEY);

        //event notification
        await _mediator.EntityInserted(salesEmployee);
    }

    /// <summary>
    ///     Updates the sales employee
    /// </summary>
    /// <param name="salesEmployee">Sales Employee</param>
    public virtual async Task UpdateSalesEmployee(SalesEmployee salesEmployee)
    {
        ArgumentNullException.ThrowIfNull(salesEmployee);

        await _salesEmployeeRepository.UpdateAsync(salesEmployee);

        //clear cache
        await _cacheBase.RemoveByPrefix(CacheKey.SALESEMPLOYEE_PATTERN_KEY);

        //event notification
        await _mediator.EntityUpdated(salesEmployee);
    }

    /// <summary>
    ///     Deletes a sales employee
    /// </summary>
    /// <param name="salesEmployee">The sales employee</param>
    public virtual async Task DeleteSalesEmployee(SalesEmployee salesEmployee)
    {
        ArgumentNullException.ThrowIfNull(salesEmployee);

        await _salesEmployeeRepository.DeleteAsync(salesEmployee);

        //clear cache
        await _cacheBase.RemoveByPrefix(CacheKey.SALESEMPLOYEE_PATTERN_KEY);

        //event notification
        await _mediator.EntityDeleted(salesEmployee);
    }

    #region Fields

    private readonly IRepository<SalesEmployee> _salesEmployeeRepository;
    private readonly IMediator _mediator;
    private readonly ICacheBase _cacheBase;

    #endregion
}