package services

import (
	"codeword/internal/models"
	"context"
	"go.uber.org/zap"
)

type PromoCodeRepository interface {
	CreatePromoCode(ctx context.Context, req *models.PromoCode) (*models.PromoCode, error)
	EditPromoCode(ctx context.Context, req *models.ReqEditPromoCode) (*models.PromoCode, error)
	GetPromoCodesList(ctx context.Context, req *models.GetPromoCodesListReq) ([]models.PromoCode, int64, error)
}

type PromoDeps struct {
	Logger        *zap.Logger
	PromoCodeRepo PromoCodeRepository
}

type PromoCodeService struct {
	logger        *zap.Logger
	promoCodeRepo PromoCodeRepository
}

func NewPromoCodeService(deps PromoDeps) *PromoCodeService {
	return &PromoCodeService{
		logger:        deps.Logger,
		promoCodeRepo: deps.PromoCodeRepo,
	}
}

func (s *PromoCodeService) CreatePromoCode(ctx context.Context, req *models.PromoCode) (*models.PromoCode, error) {
	promoCode, err := s.promoCodeRepo.CreatePromoCode(ctx, req)
	if err != nil {
		s.logger.Error("Failed to add promocode in database", zap.Error(err))
		return nil, err
	}

	return promoCode, nil
}

func (s *PromoCodeService) EditPromoCode(ctx context.Context, req *models.ReqEditPromoCode) (*models.PromoCode, error) {
	editedPromoCode, err := s.promoCodeRepo.EditPromoCode(ctx, req)
	if err != nil {
		s.logger.Error("Failed to edit promocode in database", zap.Error(err))
		return nil, err
	}

	return editedPromoCode, nil
}

func (s *PromoCodeService) GetPromoCodesList(ctx context.Context, req *models.GetPromoCodesListReq) ([]models.PromoCode, int64, error) {
	promoCodes, count, err := s.promoCodeRepo.GetPromoCodesList(ctx, req)
	if err != nil {
		s.logger.Error("Failed to get list promocodes from database", zap.Error(err))
		return nil, 0, err
	}

	return promoCodes, count, nil
}