package service

import (
	"errors"
	"jaecoo-be/app/module/product_specifications/mapper"
	"jaecoo-be/app/module/product_specifications/repository"
	"jaecoo-be/app/module/product_specifications/request"
	"jaecoo-be/app/module/product_specifications/response"
	"jaecoo-be/config/config"
	"jaecoo-be/utils/paginator"

	"github.com/rs/zerolog"
)

type productSpecificationsService struct {
	Repo repository.ProductSpecificationsRepository
	Log  zerolog.Logger
	Cfg  *config.Config
}

type ProductSpecificationsService interface {
	GetAll(req request.ProductSpecificationsQueryRequest) (specs []*response.ProductSpecificationsResponse, paging paginator.Pagination, err error)
	GetOne(id uint) (spec *response.ProductSpecificationsResponse, err error)
	Create(req request.ProductSpecificationsCreateRequest) (spec *response.ProductSpecificationsResponse, err error)
	Update(id uint, req request.ProductSpecificationsUpdateRequest) (spec *response.ProductSpecificationsResponse, err error)
	Delete(id uint) (err error)
}

func NewProductSpecificationsService(repo repository.ProductSpecificationsRepository, log zerolog.Logger, cfg *config.Config) ProductSpecificationsService {
	return &productSpecificationsService{
		Repo: repo,
		Log:  log,
		Cfg:  cfg,
	}
}

func (_i *productSpecificationsService) GetAll(req request.ProductSpecificationsQueryRequest) (specs []*response.ProductSpecificationsResponse, paging paginator.Pagination, err error) {
	specsEntity, paging, err := _i.Repo.GetAll(req)
	if err != nil {
		return
	}

	host := _i.Cfg.App.Domain

	for _, spec := range specsEntity {
		specs = append(specs, mapper.ProductSpecificationsResponseMapper(spec, host))
	}

	return
}

func (_i *productSpecificationsService) GetOne(id uint) (spec *response.ProductSpecificationsResponse, err error) {
	specEntity, err := _i.Repo.FindOne(id)
	if err != nil {
		return
	}

	if specEntity == nil {
		err = errors.New("product specification not found")
		return
	}

	host := _i.Cfg.App.Domain

	spec = mapper.ProductSpecificationsResponseMapper(specEntity, host)
	return
}

func (_i *productSpecificationsService) Create(req request.ProductSpecificationsCreateRequest) (spec *response.ProductSpecificationsResponse, err error) {
	specEntity := req.ToEntity()
	isActive := true
	specEntity.IsActive = &isActive

	specEntity, err = _i.Repo.Create(specEntity)
	if err != nil {
		return
	}

	host := _i.Cfg.App.Domain

	spec = mapper.ProductSpecificationsResponseMapper(specEntity, host)
	return
}

func (_i *productSpecificationsService) Update(id uint, req request.ProductSpecificationsUpdateRequest) (spec *response.ProductSpecificationsResponse, err error) {
	specEntity := req.ToEntity()

	err = _i.Repo.Update(id, specEntity)
	if err != nil {
		return
	}

	specEntity, err = _i.Repo.FindOne(id)
	if err != nil {
		return
	}

	host := _i.Cfg.App.Domain

	spec = mapper.ProductSpecificationsResponseMapper(specEntity, host)
	return
}

func (_i *productSpecificationsService) Delete(id uint) (err error) {
	err = _i.Repo.Delete(id)
	return
}