package service

import (
	"context"

	"github.com/Caknoooo/go-gin-clean-starter/database/entities"
	dtodomain "github.com/Caknoooo/go-gin-clean-starter/modules/att_set/dto"
	"github.com/Caknoooo/go-gin-clean-starter/modules/att_set/query"
	"github.com/Caknoooo/go-gin-clean-starter/modules/att_set/repository"
	"github.com/Caknoooo/go-gin-clean-starter/pkg/utils"
	"github.com/google/uuid"
	"github.com/sirupsen/logrus"
	"gorm.io/gorm"
)

type AttSetService interface {
	Create(ctx context.Context, req dtodomain.AttSetCreateRequest) (dtodomain.AttSetResponse, error)
	GetById(ctx context.Context, attSetId string) (dtodomain.AttSetResponse, error)
	GetAll(ctx context.Context, filter query.AttSetFilter) ([]dtodomain.AttSetResponse, int64, error)
	Update(ctx context.Context, req dtodomain.AttSetUpdateRequest, attSetId string) (dtodomain.AttSetResponse, error)
	Delete(ctx context.Context, attSetId string) error
}

type attSetService struct {
	db         *gorm.DB
	attSetRepo repository.AttSetRepository
	log        *logrus.Logger
}

func NewAttSetService(attSetRepo repository.AttSetRepository, db *gorm.DB, log *logrus.Logger) AttSetService {
	return &attSetService{
		db:         db,
		attSetRepo: attSetRepo,
		log:        log,
	}
}

func (s *attSetService) Create(ctx context.Context, req dtodomain.AttSetCreateRequest) (dtodomain.AttSetResponse, error) {
	tx := s.db.Begin()
	defer func() {
		if r := recover(); r != nil {
			tx.Rollback()
		}
	}()
	clientUUID, err := uuid.Parse(req.ClientID)
	if err != nil {
		tx.Rollback()
		return dtodomain.AttSetResponse{}, err
	}
	attSet := entities.TAttributSetInstanceEntity{
		AttributSetInstance: req.AttributSetInstance,
		DateMaterialPolicy:  utils.StringToDate(req.DateMaterialPolicy),
		TransactionType:     req.TransactionType,
		ClientID:            clientUUID,
	}
	created, err := s.attSetRepo.Create(ctx, tx, attSet)
	if err != nil {
		tx.Rollback()
		return dtodomain.AttSetResponse{}, err
	}
	tx.Commit()
	resp := dtodomain.ToAttSetResponse(created)
	return resp, nil
}

func (s *attSetService) GetById(ctx context.Context, attSetId string) (dtodomain.AttSetResponse, error) {
	attSet, err := s.attSetRepo.GetById(ctx, nil, attSetId)
	if err != nil {
		return dtodomain.AttSetResponse{}, err
	}
	resp := dtodomain.ToAttSetResponse(attSet)
	return resp, nil
}

func (s *attSetService) GetAll(ctx context.Context, filter query.AttSetFilter) ([]dtodomain.AttSetResponse, int64, error) {
	attSets, count, err := s.attSetRepo.GetAll(ctx, filter)
	if err != nil {
		return nil, 0, err
	}
	var resp []dtodomain.AttSetResponse
	for _, attSet := range attSets {
		resp = append(resp, dtodomain.ToAttSetResponse(attSet))
	}
	return resp, count, nil
}

func (s *attSetService) Update(ctx context.Context, req dtodomain.AttSetUpdateRequest, attSetId string) (dtodomain.AttSetResponse, error) {
	tx := s.db.Begin()
	defer func() {
		if r := recover(); r != nil {
			tx.Rollback()
		}
	}()
	attSet, err := s.attSetRepo.GetById(ctx, tx, attSetId)
	if err != nil {
		tx.Rollback()
		return dtodomain.AttSetResponse{}, err
	}
	if req.AttributSetInstance != "" {
		attSet.AttributSetInstance = req.AttributSetInstance
	}
	if req.DateMaterialPolicy != "" {
		attSet.DateMaterialPolicy = utils.StringToDate(req.DateMaterialPolicy)
	}
	if req.TransactionType != "" {
		attSet.TransactionType = req.TransactionType
	}
	if req.ClientID != "" {
		clientUUID, err := uuid.Parse(req.ClientID)
		if err == nil {
			attSet.ClientID = clientUUID
		}
	}
	updated, err := s.attSetRepo.Update(ctx, tx, attSet)
	if err != nil {
		tx.Rollback()
		return dtodomain.AttSetResponse{}, err
	}
	tx.Commit()
	resp := dtodomain.ToAttSetResponse(updated)
	return resp, nil
}

func (s *attSetService) Delete(ctx context.Context, attSetId string) error {
	tx := s.db.Begin()
	defer func() {
		if r := recover(); r != nil {
			tx.Rollback()
		}
	}()
	if err := s.attSetRepo.Delete(ctx, tx, attSetId); err != nil {
		tx.Rollback()
		return err
	}
	tx.Commit()
	return nil
}