using Microsoft.Extensions.Logging;
using Quadarax.Application.QLiberace.Base.Dtos;
using Quadarax.Application.QLiberace.Base.Entities;
using Quadarax.Application.QLiberace.Base.Mapper;
using Quadarax.Application.QLiberace.Base.Repositories;
using Quadarax.Application.QLiberace.Common;
using Quadarax.Application.QLiberace.Common.Domain;
using Quadarax.Application.QLiberace.Customer.Dtos;
using Quadarax.Application.QLiberace.Customer.Dtos.Validators;
using Quadarax.Application.QLiberace.Customer.Entities;
using Quadarax.Application.QLiberace.Customer.Enums;
using Quadarax.Application.QLiberace.Customer.Repositories;
using Quadarax.Foundation.Core.Business;
using Quadarax.Foundation.Core.Data.Interface.Domain;
using Quadarax.Foundation.Core.Data.Interface.Entity.Dto;
using Quadarax.Foundation.Core.Exceptions;
using Quadarax.Foundation.Core.Logging;
using Quadarax.Foundation.Core.Value;

namespace Quadarax.Application.QLiberace.Customer.Services
{
    public class CustomerService : AbstractMultiRepositoryService<RepoCustomer,RepoContact, RepoUser, RepoCountry>
    {
        #region *** Constructor ***
        public CustomerService(RepoCustomer repository1, RepoContact repository2, RepoUser repository3, RepoCountry repository4, IContext currentContext, IQLogger logger) : base(repository1, repository2, repository3, repository4, currentContext, logger)
        {
        }
        #endregion

        #region *** Public operations ***
        #region **** Customer ****

        public ResultValueDto<CustomerRDto?> CreateCustomer(CustomerWDto customer)
        {
            if (customer==null) throw new ArgumentNullException(nameof(customer));

            return TryCatchBlock(() =>
            {
                ValidateWDto(customer);

                var customerDao = Repository1.New();
                customer.CopyToDto(customerDao);
                return new ResultValueDto<CustomerRDto?>(customerDao.Map<Entities.Customer, CustomerRDto>());
            });
        }


        public ResultDto UpdateCustomer(string customerCode, CustomerWDto customer)
        {
            if (customer==null) throw new ArgumentNullException(nameof(customer));

            return TryCatchBlock(() =>
            {
                ValidateWDto(customer);

                var customerDao = FetchCustomer(customerCode);
                customer.CopyToDto(customerDao);
                return new ResultValueDto<CustomerRDto?>(customerDao.Map<Entities.Customer, CustomerRDto>());
            });
        }

        public ResultDto DeleteCustomer(long customerId)
        {
            return TryCatchBlock(() =>
            {
                var result = FetchCustomer(customerId);
                Repository1.Remove(customerId);
                return new ResultPlain();
            });
        }

        public ResultValueDto<CustomerRDto?> GetCustomer(string customerCode)
        {
            return TryCatchBlock(() =>
            {
                var customerDao = FetchCustomer(customerCode);
                return new ResultValueDto<CustomerRDto?>(customerDao.Map<Entities.Customer, CustomerRDto>());
            });
        }

        public ResultValueDto<CustomerRDto?> GetCustomer(long customerId)
        {
            return TryCatchBlock(() =>
            {
                var customerDao = FetchCustomer(customerId);
                return new ResultValueDto<CustomerRDto?>(customerDao.Map<Entities.Customer, CustomerRDto>());
            });
        }

        public ResultBoolDto ExistsCustomer(string customerCode)
        {
            return TryCatchBlock(() => new ResultBoolDto(FetchCustomer(customerCode)!=null));
        }
        #endregion

        #region **** User Assignments ****
        public ResultDto AssignUser(string customerCode, string userLogin)
        {
            return TryCatchBlock(() =>
            {
                var customerDao = FetchCustomer(customerCode);
                FetchUser(userLogin);
                
                if (customerDao!.Users.Any(x=>string.Equals(x.UserLoginName, userLogin)))
                    throw ExceptionFactory.CreateException(ExceptionLibrary.ExceptionsCodes.CustomerUserAlreadyAssignedCode, "code",customerCode, userLogin);

                customerDao.Users.Add(new CustomerUser()
                {
                    CustomerId = customerDao.Id,
                    UserLoginName = userLogin
                });
                return new ResultPlain();
            });
        }

        public ResultDto UnAssignUser(string customerCode, string userLogin)
        {
            return TryCatchBlock(() =>
            {
                var customerDao = FetchCustomer(customerCode);
                FetchUser(userLogin);

                var customerUser = customerDao!.Users.FirstOrDefault(x => string.Equals(x.UserLoginName, userLogin));
                if (customerUser == null)
                    throw ExceptionFactory.CreateException(ExceptionLibrary.ExceptionsCodes.CustomerUserNotFoundAssignedCode, "code",customerCode, userLogin);

                customerDao.Users.Remove(customerUser);
                return new ResultPlain();
            });
        }
        #endregion

        #region **** Customer Constacts ****
        public ResultValueDto<ContactRDto?> CreateContact(string customerCode, ContactWDto contact)
        {

            if (contact==null) throw new ArgumentNullException(nameof(contact));

            return TryCatchBlock(() =>
            {
                var customerDao = FetchCustomer(customerCode);
                ValidateWDto(contact);

                var contactDao = Repository2.New();
                contactDao.Customer = customerDao!;
                contact.CopyToDto(contactDao);
                return new ResultValueDto<ContactRDto?>(contactDao.Map<Contact, ContactRDto>());
            });
        }
        public ResultDto UpdateContact(long contactId, ContactWDto contact)
        {
            if (contact==null) throw new ArgumentNullException(nameof(contact));

            return TryCatchBlock(() =>
            {
                var contactDao = FetchContact(contactId);
                ValidateWDto(contact);
                contact.CopyToDto(contactDao);
                return new ResultValueDto<ContactRDto?>(contactDao.Map<Contact, ContactRDto>());
            });
        }

        public ResultDto DeleteContact(long contactId)
        {
            return TryCatchBlock(() =>
            {
                Repository2.Remove(contactId);
                return new ResultPlain();
            });
        }

        public ResultValueDto<ContactRDto?> GetContact(long contactId)
        {
            return TryCatchBlock(() =>
            {
                var contactDao = FetchContact(contactId);
                return new ResultValueDto<ContactRDto?>(contactDao.Map<Contact, ContactRDto>());
            });
        }

        public ResultsValueDto<ContactRDto?> GetContacts(string customerCode)
        {
            return TryCatchBlock(() =>
            {
                var customerDao = FetchCustomer(customerCode);
                return new ResultsValueDto<ContactRDto?>(customerDao!.Contacts.MapList<Contact, ContactRDto>());
            });
        }

        public ResultsValueDto<ContactRDto?> GetPreferredContacts(string customerCode, params ContactTypeEnum[] contactTypes)
        {
            if (contactTypes == null || contactTypes.Length == 0) throw new ArgumentNullException(nameof(contactTypes));

            return TryCatchBlock(() =>
            {
                var customerDao = FetchCustomer(customerCode);
                return new ResultsValueDto<ContactRDto?>(customerDao!.Contacts.Where(x=>x.IsPreferred && contactTypes.Contains(x.Type)).MapList<Contact, ContactRDto>());
            });
        }

        public ResultDto ValidateContacts(string customerCode)
        {
            return TryCatchBlock(() =>
            {
                var customerDao = FetchCustomer(customerCode);
                var contactTypes = new List<ContactTypeEnum>(new[]
                    { ContactTypeEnum.Address, ContactTypeEnum.Email, ContactTypeEnum.Phone });
                var contacts = customerDao!.Contacts.Where(x => x.IsPreferred && contactTypes.Contains(x.Type)).ToArray();

                if (contacts!=null && !contacts.Any())
                    throw ExceptionFactory.CreateException(
                        ExceptionLibrary.ExceptionsCodes.CustomerMissingContactCode, "code", customerCode);


                var elist = new List<CodeException>();
                if (contacts?.Count(x=>x.IsPreferred && x.Type == ContactTypeEnum.Address) != 1) elist.Add(ExceptionFactory.CreateException(ExceptionLibrary.ExceptionsCodes.CustomerMissingAddressCode, "code",customerCode));
                if (contacts?.Count(x=>x.IsPreferred && x.Type == ContactTypeEnum.Phone) != 1) elist.Add(ExceptionFactory.CreateException(ExceptionLibrary.ExceptionsCodes.CustomerMissingPhoneCode, "code",customerCode));
                if (contacts?.Count(x=>x.IsPreferred && x.Type == ContactTypeEnum.Email) != 1) elist.Add(ExceptionFactory.CreateException(ExceptionLibrary.ExceptionsCodes.CustomerMissingEmailCode, "code",customerCode));

                if (elist.Count > 0)
                    throw new AggregateException(elist);
                return new ResultPlain();

            });
        }
        #endregion
        #endregion

        #region *** Private Operations ***
        private void ValidateWDto(CustomerWDto customer)
        {
            if (customer == null) throw new ArgumentNullException(nameof(customer));
            var validator = new CustomerValidator();
            validator.Validate(customer, new ValidatorContext(new KeyValuePair<string, object>[]{ new("RepoCountry", Repository4)}));
            if (!validator.IsSuccess) throw ExceptionFactory.CreateException(ExceptionLibrary.ExceptionsCodes.ValidationErrorsCode, validator.ToAggregateException());
        }

        private void ValidateWDto(ContactWDto contact)
        {
            if (contact == null) throw new ArgumentNullException(nameof(contact));
            var validator = new ContactValidator();
            validator.Validate(contact, new ValidatorContext(new KeyValuePair<string, object>[]{ new("RepoCountry", Repository4)}));
            if (!validator.IsSuccess) throw ExceptionFactory.CreateException(ExceptionLibrary.ExceptionsCodes.ValidationErrorsCode, validator.ToAggregateException());
        }

        private void ValidateSameTenant(TenantWDto tenant)
        {
            if (tenant == null) throw new ArgumentNullException(nameof(tenant));
            var currentTenantCode = CurrentContext.GetContext<QlbrcContext>().TenantCode;
            if (!string.Equals(currentTenantCode, tenant.Code, StringComparison.InvariantCulture))
                throw ExceptionFactory.CreateException(ExceptionLibrary.ExceptionsCodes.TenantDifferentContextCode, tenant.Code, currentTenantCode!);
        }

        private Entities.Customer? FetchCustomer(string customerCode)
        {
            if (string.IsNullOrEmpty(customerCode)) throw new ArgumentNullException(nameof(customerCode));

            var exists = Repository1.GetByCode(customerCode);
            if (exists != null) throw 
                ExceptionFactory.CreateException(ExceptionLibrary.ExceptionsCodes.CustomerNotFoundCode, "code", customerCode);
            return exists;
        }

        private User? FetchUser(string userLogin)
        {
            if (string.IsNullOrEmpty(userLogin)) throw new ArgumentNullException(nameof(userLogin));

            var exists = Repository3.GetByLoginName(userLogin);
            if (exists != null) throw 
                ExceptionFactory.CreateException(ExceptionLibrary.ExceptionsCodes.UserNotFoundCode, "loginName", userLogin);
            return exists;
        }

        private Entities.Customer? FetchCustomer(long customerId)
        {
            var exists = Repository1.Get(customerId);
            if (exists != null) throw 
                ExceptionFactory.CreateException(ExceptionLibrary.ExceptionsCodes.CustomerNotFoundCode, "id", customerId.ToString());
            return exists;
        }

        private Contact? FetchContact(long contactId)
        {
            var exists = Repository2.Get(contactId);
            if (exists != null) throw 
                ExceptionFactory.CreateException(ExceptionLibrary.ExceptionsCodes.ContactNotFoundCode, "id", contactId.ToString());
            return exists;
        }

        #endregion

    }


}