add create internal reference

internal/domain/main-entities/checkout-polies/dto.go

@@ -0,0 +1,76 @@
+package checkout_polies
+
+import (
+	ecore "simrs-vx/internal/domain/base-entities/core"
+	ed "simrs-vx/internal/domain/main-entities/doctor"
+	ee "simrs-vx/internal/domain/main-entities/encounter"
+	eu "simrs-vx/internal/domain/main-entities/unit"
+)
+
+type CreateDto struct {
+	Encounter_Id *uint   `json:"encounter_id"`
+	Unit_Id      *uint16 `json:"unit_id"`
+	Doctor_Id    *uint   `json:"doctor_Id"`
+}
+
+type ReadListDto struct {
+	FilterDto
+	Includes   string `json:"includes"`
+	Pagination ecore.Pagination
+}
+
+type FilterDto struct {
+	Encounter_Id *uint `json:"encounter-id"`
+	Unit_Id      *uint `json:"unit-id"`
+	Doctor_Id    *uint `json:"doctor-id"`
+}
+
+type ReadDetailDto struct {
+	Id uint16 `json:"id"`
+}
+
+type UpdateDto struct {
+	Id uint16 `json:"id"`
+	CreateDto
+}
+
+type DeleteDto struct {
+	Id uint16 `json:"id"`
+}
+
+type MetaDto struct {
+	PageNumber int `json:"page_number"`
+	PageSize   int `json:"page_size"`
+	Count      int `json:"count"`
+}
+
+type ResponseDto struct {
+	ecore.Main
+	Encounter_Id *uint         `json:"encounter_id"`
+	Encounter    *ee.Encounter `json:"encounter,omitempty"`
+	Unit_Id      *uint16       `json:"unit_id"`
+	Unit         *eu.Unit      `json:"unit,omitempty"`
+	Doctor_Id    *uint         `json:"doctor_id"`
+	Doctor       *ed.Doctor    `json:"doctor,omitempty"`
+}
+
+func (d CheckoutPolies) ToResponse() ResponseDto {
+	resp := ResponseDto{
+		Encounter_Id: d.Encounter_Id,
+		Encounter:    d.Encounter,
+		Unit_Id:      d.Unit_Id,
+		Unit:         d.Unit,
+		Doctor_Id:    d.Doctor_Id,
+		Doctor:       d.Doctor,
+	}
+	resp.Main = d.Main
+	return resp
+}
+
+func ToResponseList(data []CheckoutPolies) []ResponseDto {
+	resp := make([]ResponseDto, len(data))
+	for i, u := range data {
+		resp[i] = u.ToResponse()
+	}
+	return resp
+}

internal/interface/main-handler/checkout-polies/handler.go

@@ -0,0 +1,69 @@
+package checkout_polies
+
+import (
+	"net/http"
+
+	ecp "simrs-vx/internal/domain/main-entities/checkout-polies"
+	ucp "simrs-vx/internal/use-case/main-use-case/checkout-polies"
+
+	rw "github.com/karincake/risoles"
+)
+
+type myBase struct{}
+
+var O myBase
+
+func (obj myBase) Create(w http.ResponseWriter, r *http.Request) {
+	dto := ecp.CreateDto{}
+	if res := rw.ValidateStructByIOR(w, r.Body, &dto); !res {
+		return
+	}
+
+	res, err := ucp.Create(dto)
+	rw.DataResponse(w, res, err)
+}
+
+func (obj myBase) GetList(w http.ResponseWriter, r *http.Request) {
+	//dto := e.ReadListDto{}
+	//sf.UrlQueryParam(&dto, *r.URL)
+	//res, err := u.ReadList(dto)
+	//rw.DataResponse(w, res, err)
+}
+
+func (obj myBase) GetDetail(w http.ResponseWriter, r *http.Request) {
+	//id := rw.ValidateInt(w, "id", r.PathValue("id"))
+	//if id <= 0 {
+	//	return
+	//}
+	//dto := e.ReadDetailDto{}
+	//dto.Id = uint16(id)
+	//res, err := u.ReadDetail(dto)
+	//rw.DataResponse(w, res, err)
+}
+
+func (obj myBase) Update(w http.ResponseWriter, r *http.Request) {
+	//id := rw.ValidateInt(w, "id", r.PathValue("id"))
+	//if id <= 0 {
+	//	return
+	//}
+	//
+	//dto := e.UpdateDto{}
+	//if res := rw.ValidateStructByIOR(w, r.Body, &dto); !res {
+	//	return
+	//}
+	//dto.Id = uint16(id)
+	//res, err := u.Update(dto)
+	//rw.DataResponse(w, res, err)
+}
+
+func (obj myBase) Delete(w http.ResponseWriter, r *http.Request) {
+	//id := rw.ValidateInt(w, "id", r.PathValue("id"))
+	//if id <= 0 {
+	//	return
+	//}
+	//
+	//dto := e.DeleteDto{}
+	//dto.Id = uint16(id)
+	//res, err := u.Delete(dto)
+	//rw.DataResponse(w, res, err)
+}

internal/interface/main-handler/main-handler.go

@@ -6,6 +6,7 @@ import (
 	/******************** main / transaction ********************/
 	adime "simrs-vx/internal/interface/main-handler/adime"
 	auth "simrs-vx/internal/interface/main-handler/authentication"
+	checkoutpolies "simrs-vx/internal/interface/main-handler/checkout-polies"
 	chemo "simrs-vx/internal/interface/main-handler/chemo"
 	consultation "simrs-vx/internal/interface/main-handler/consultation"
 	counter "simrs-vx/internal/interface/main-handler/counter"
@@ -232,6 +233,8 @@ func SetRoutes() http.Handler {
 		"PATCH /{id}/reject": chemo.O.Reject,
 	})
 
+	hc.RegCrud(r, "/v1/checkout-poly", checkoutpolies.O)
+
 	/******************** actor ********************/
 	hc.RegCrud(r, "/v1/person", person.O)
 	hc.RegCrud(r, "/v1/person-address", personaddress.O)

internal/use-case/main-use-case/checkout-polies/case.go

@@ -0,0 +1,92 @@
+package checkout_polies
+
+import (
+
+	// main entities
+	cp "simrs-vx/internal/domain/main-entities/checkout-polies"
+	ed "simrs-vx/internal/domain/main-entities/doctor"
+	ee "simrs-vx/internal/domain/main-entities/encounter"
+	eu "simrs-vx/internal/domain/main-entities/unit"
+
+	// main use case
+	ud "simrs-vx/internal/use-case/main-use-case/doctor"
+	ue "simrs-vx/internal/use-case/main-use-case/encounter"
+	uu "simrs-vx/internal/use-case/main-use-case/unit"
+
+	pl "simrs-vx/pkg/logger"
+	pu "simrs-vx/pkg/use-case-helper"
+
+	dg "github.com/karincake/apem/db-gorm-pg"
+	d "github.com/karincake/dodol"
+	"gorm.io/gorm"
+)
+
+const source = "checkout-polies"
+
+func Create(input cp.CreateDto) (*d.Data, error) {
+	data := cp.CheckoutPolies{}
+
+	event := pl.Event{
+		Feature: "Create",
+		Source:  source,
+	}
+
+	// Start log
+	pl.SetLogInfo(&event, input, "started", "create")
+
+	err := dg.I.Transaction(func(tx *gorm.DB) error {
+		mwRunner := newMiddlewareRunner(&event, tx)
+		mwRunner.setMwType(pu.MWTPre)
+		// Run pre-middleware
+		if err := mwRunner.RunCreateMiddleware(createPreMw, &input, &data); err != nil {
+			return err
+		}
+
+		// Validate Encounter Id
+		_, err := ue.ReadDetail(ee.ReadDetailDto{Id: uint16(*input.Encounter_Id)})
+		if err != nil {
+			return err
+		}
+
+		// Validate Unit Id
+		_, err = uu.ReadDetail(eu.ReadDetailDto{Id: *input.Unit_Id})
+		if err != nil {
+			return err
+		}
+
+		// Validate Doctor Id
+		_, err = ud.ReadDetail(ed.ReadDetailDto{Id: uint16(*input.Doctor_Id)})
+		if err != nil {
+			return err
+		}
+
+		if resData, err := CreateData(input, &event, tx); err != nil {
+			return err
+		} else {
+			data = *resData
+		}
+
+		mwRunner.setMwType(pu.MWTPost)
+		// Run post-middleware
+		if err := mwRunner.RunCreateMiddleware(createPostMw, &input, &data); err != nil {
+			return err
+		}
+
+		pl.SetLogInfo(&event, nil, "complete")
+
+		return nil
+	})
+
+	if err != nil {
+		return nil, err
+	}
+
+	return &d.Data{
+		Meta: d.II{
+			"source":    source,
+			"structure": "single-data",
+			"status":    "created",
+		},
+		Data: data.ToResponse(),
+	}, nil
+}

internal/use-case/main-use-case/checkout-polies/helper.go

@@ -0,0 +1,302 @@
+/*
+DESCRIPTION:
+Any functions that are used internally by the use-case
+*/
+package checkout_polies
+
+import (
+	"errors"
+	"fmt"
+	cp "simrs-vx/internal/domain/main-entities/checkout-polies"
+	"strings"
+
+	e "simrs-vx/internal/domain/main-entities/encounter"
+	es "simrs-vx/internal/domain/main-entities/soapi"
+
+	edo "simrs-vx/internal/domain/main-entities/device-order"
+	emo "simrs-vx/internal/domain/main-entities/material-order"
+	emco "simrs-vx/internal/domain/main-entities/mcu-order"
+	em "simrs-vx/internal/domain/main-entities/medication"
+	emei "simrs-vx/internal/domain/main-entities/medication-item"
+	emi "simrs-vx/internal/domain/main-entities/medicine-mix"
+	emmi "simrs-vx/internal/domain/main-entities/medicine-mix-item"
+	ep "simrs-vx/internal/domain/main-entities/prescription"
+	epi "simrs-vx/internal/domain/main-entities/prescription-item"
+
+	// udo "simrs-vx/internal/use-case/main-use-case/device-order"
+	um "simrs-vx/internal/use-case/main-use-case/medication"
+	umei "simrs-vx/internal/use-case/main-use-case/medication-item"
+	umi "simrs-vx/internal/use-case/main-use-case/medicine-mix"
+	ummi "simrs-vx/internal/use-case/main-use-case/medicine-mix-item"
+	up "simrs-vx/internal/use-case/main-use-case/prescription"
+	upi "simrs-vx/internal/use-case/main-use-case/prescription-item"
+
+	pl "simrs-vx/pkg/logger"
+	pu "simrs-vx/pkg/use-case-helper"
+
+	erc "simrs-vx/internal/domain/references/common"
+	ero "simrs-vx/internal/domain/references/organization"
+
+	"gorm.io/gorm"
+)
+
+func setData[T *cp.CreateDto | *cp.UpdateDto](input T, data *cp.CheckoutPolies) {
+	var inputSrc *cp.CreateDto
+	if inputT, ok := any(input).(*cp.CreateDto); ok {
+		inputSrc = inputT
+	} else {
+		inputTemp := any(input).(*cp.UpdateDto)
+		inputSrc = &inputTemp.CreateDto
+	}
+
+	data.Encounter_Id = inputSrc.Encounter_Id
+	data.Unit_Id = inputSrc.Unit_Id
+	data.Doctor_Id = inputSrc.Doctor_Id
+}
+
+func setDataUpdate(src e.UpdateDto, dst *e.Encounter) {
+	dst.Appointment_Doctor_Id = src.Appointment_Doctor_Id
+	dst.Responsible_Doctor_Id = src.Responsible_Doctor_Id
+	dst.Unit_Id = src.Unit_Id
+	dst.Specialist_Id = src.Specialist_Id
+	dst.Subspecialist_Id = src.Subspecialist_Id
+	dst.VisitDate = src.VisitDate
+}
+
+func setDataDischarge(src e.DischargeDto, dst *e.Encounter) {
+	dst.DischargeMethod_Code = src.DischargeMethod_Code
+	dst.EarlyEducation = src.EarlyEducation
+	dst.MedicalDischargeEducation = src.MedicalDischargeEducation
+	dst.AdmDischargeEducation = src.AdmDischargeEducation
+	dst.DischargeReason = src.DischargeReason
+	dst.Status_Code = erc.DSCDone
+}
+
+func checkSoapiByDocExists(encounter_id uint, event *pl.Event, tx *gorm.DB) error {
+	pl.SetLogInfo(event, nil, "started", "checkSoapiByDocExists")
+	var soapies []es.Soapi
+	err := tx.
+		Preload("Employee").
+		Preload("Employee.User").
+		Where("\"Encounter_Id\" = ?", encounter_id).Find(&soapies).Error
+	if err != nil {
+		event.Status = "failed"
+		event.ErrInfo = pl.ErrorInfo{
+			Code:   "data-get-fail",
+			Detail: "get soapi failed",
+			Raw:    err,
+		}
+		return pl.SetLogError(event, nil)
+	}
+
+	if len(soapies) == 0 {
+		event.Status = "failed"
+		event.ErrInfo = pl.ErrorInfo{
+			Code:   "data-notFound",
+			Detail: "no soapi found for encounter",
+			Raw:    errors.New("soapi not found"),
+		}
+		return pl.SetLogError(event, nil)
+	}
+
+	for _, s := range soapies {
+		if s.Employee != nil && s.Employee.User != nil && s.Employee.User.Position_Code == ero.UPCDoc {
+			return nil
+		}
+	}
+
+	event.Status = "failed"
+	event.ErrInfo = pl.ErrorInfo{
+		Code:   "data-update-fail",
+		Detail: "no soapi written by a doctor found",
+		Raw:    errors.New("all soapi employees are not doctors"),
+	}
+	return pl.SetLogError(event, nil)
+}
+
+func createMedication(encounter_id uint, event *pl.Event, tx *gorm.DB) error {
+	pl.SetLogInfo(event, nil, "started", "createMedication")
+
+	prescription, err := up.ReadDetailData(ep.ReadDetailDto{Encounter_Id: &encounter_id}, event, tx)
+	if err != nil {
+		return err
+	}
+
+	prescriptionItem, _, err := upi.ReadListData(epi.ReadListDto{FilterDto: epi.FilterDto{Prescription_Id: &prescription.Id}}, event, tx)
+	if err != nil {
+		return err
+	}
+
+	if len(prescriptionItem) == 0 {
+		return nil
+	}
+
+	medicationCreate := em.CreateDto{
+		Encounter_Id: &encounter_id,
+		IssuedAt:     pu.GetTimeNow(),
+		Status_Code:  erc.DSCNew,
+	}
+	medication, err := um.CreateData(medicationCreate, event, tx)
+	if err != nil {
+		return err
+	}
+
+	for _, prescriptionItem := range prescriptionItem {
+		if prescriptionItem.IsMix {
+			medMix_id, err := createMedicineMixAndItem(*prescriptionItem.MedicineMix, event, tx)
+			if err != nil {
+				return err
+			}
+			prescriptionItem.MedicineMix_Id = medMix_id
+		}
+		err := createMedicationItem(medication.Id, prescriptionItem, event, tx)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func createMedicineMixAndItem(input emi.MedicineMix, event *pl.Event, tx *gorm.DB) (*uint, error) {
+	pl.SetLogInfo(event, nil, "started", "createMedicineMix")
+
+	medicineMixCreate := emi.CreateDto{
+		Name:     input.Name,
+		Uom_Code: input.Uom_Code,
+	}
+	medicineMix, err := umi.CreateData(medicineMixCreate, event, tx)
+	if err != nil {
+		return nil, err
+	}
+
+	// recreate medicineMixItem with new medicineMix_id to keep medMixItem remain the same for prescriptionItem that is created
+	for _, medicineMixItem := range input.MixItems {
+		medicineMixItemCreate := emmi.CreateDto{
+			MedicineMix_Id: &medicineMix.Id,
+			Medicine_Id:    medicineMixItem.Medicine_Id,
+			Dose:           medicineMixItem.Dose,
+		}
+		_, err := ummi.CreateData(medicineMixItemCreate, event, tx)
+		if err != nil {
+			return nil, err
+		}
+
+	}
+	return &medicineMix.Id, nil
+}
+
+func createMedicationItem(medication_id uint, input epi.PrescriptionItem, event *pl.Event, tx *gorm.DB) error {
+	pl.SetLogInfo(event, nil, "started", "createMedicationItem")
+
+	medicationItemCreate := emei.CreateDto{
+		Medication_Id:     &medication_id,
+		IsMix:             input.IsMix,
+		Medicine_Id:       input.Medicine_Id,
+		MedicineMix_Id:    input.MedicineMix_Id,
+		Usage:             input.Usage,
+		Interval:          input.Interval,
+		IntervalUnit_Code: input.IntervalUnit_Code,
+		Quantity:          input.Quantity,
+	}
+
+	_, err := umei.CreateData(medicationItemCreate, event, tx)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func checkNewOrdersExist(encounter_id uint, event *pl.Event, tx *gorm.DB) error {
+	pl.SetLogInfo(event, nil, "started", "CheckNewOrdersExist")
+	var errs []string
+	if err := getDeviceOrders(encounter_id, event, tx); err != nil {
+		errs = append(errs, err.Error())
+	}
+
+	if err := getMaterialOrders(encounter_id, event, tx); err != nil {
+		errs = append(errs, err.Error())
+	}
+
+	if err := getMcuOrders(encounter_id, event, tx); err != nil {
+		errs = append(errs, err.Error())
+	}
+
+	if len(errs) > 0 {
+		return fmt.Errorf("encounter has open orders: %s", strings.Join(errs, "; "))
+	}
+
+	return nil
+}
+
+func getDeviceOrders(encounter_id uint, event *pl.Event, tx *gorm.DB) error {
+	pl.SetLogInfo(event, nil, "started", "getDeviceOrders")
+	var orders []edo.DeviceOrder
+	err := tx.Where("\"Encounter_Id\" = ? AND \"Status_Code\" = ?", encounter_id, erc.DSCNew).Find(&orders).Error
+	if err != nil {
+		if err == gorm.ErrRecordNotFound {
+			return nil
+		}
+		event.Status = "failed"
+		event.ErrInfo = pl.ErrorInfo{
+			Code:   "data-get-fail",
+			Detail: "get device order failed",
+			Raw:    err,
+		}
+		return pl.SetLogError(event, nil)
+	}
+
+	if len(orders) > 0 {
+		return fmt.Errorf("encounter has %d device orders", len(orders))
+	}
+
+	return nil
+}
+
+func getMaterialOrders(encounter_id uint, event *pl.Event, tx *gorm.DB) error {
+	pl.SetLogInfo(event, nil, "started", "getMaterialOrders")
+	var orders []emo.MaterialOrder
+	err := tx.Where("\"Encounter_Id\" = ? AND \"Status_Code\" = ?", encounter_id, erc.DSCNew).Find(&orders).Error
+	if err != nil {
+		if err == gorm.ErrRecordNotFound {
+			return nil
+		}
+		event.Status = "failed"
+		event.ErrInfo = pl.ErrorInfo{
+			Code:   "data-get-fail",
+			Detail: "get material order failed",
+			Raw:    err,
+		}
+		return pl.SetLogError(event, nil)
+	}
+
+	if len(orders) > 0 {
+		return fmt.Errorf("encounter has %d material orders", len(orders))
+	}
+
+	return nil
+}
+
+func getMcuOrders(encounter_id uint, event *pl.Event, tx *gorm.DB) error {
+	pl.SetLogInfo(event, nil, "started", "getMcuOrders")
+	var orders []emco.McuOrder
+	err := tx.Where("\"Encounter_Id\" = ? AND \"Status_Code\" = ?", encounter_id, erc.DSCNew).Find(&orders).Error
+	if err != nil {
+		if err == gorm.ErrRecordNotFound {
+			return nil
+		}
+		event.Status = "failed"
+		event.ErrInfo = pl.ErrorInfo{
+			Code:   "data-get-fail",
+			Detail: "get mcu order failed",
+			Raw:    err,
+		}
+		return pl.SetLogError(event, nil)
+	}
+
+	if len(orders) > 0 {
+		return fmt.Errorf("encounter has %d mcu orders", len(orders))
+	}
+
+	return nil
+}

internal/use-case/main-use-case/checkout-polies/lib.go

@@ -0,0 +1,31 @@
+package checkout_polies
+
+import (
+	cp "simrs-vx/internal/domain/main-entities/checkout-polies"
+	plh "simrs-vx/pkg/lib-helper"
+	pl "simrs-vx/pkg/logger"
+
+	dg "github.com/karincake/apem/db-gorm-pg"
+	"gorm.io/gorm"
+)
+
+func CreateData(input cp.CreateDto, event *pl.Event, dbx ...*gorm.DB) (*cp.CheckoutPolies, error) {
+	pl.SetLogInfo(event, nil, "started", "DBCreate")
+
+	data := cp.CheckoutPolies{}
+	setData(&input, &data)
+
+	var tx *gorm.DB
+	if len(dbx) > 0 {
+		tx = dbx[0]
+	} else {
+		tx = dg.I
+	}
+
+	if err := tx.Create(&data).Error; err != nil {
+		return nil, plh.HandleCreateError(input, event, err)
+	}
+
+	pl.SetLogInfo(event, nil, "complete")
+	return &data, nil
+}

internal/use-case/main-use-case/checkout-polies/middleware-runner.go

@@ -0,0 +1,103 @@
+package checkout_polies
+
+import (
+	cp "simrs-vx/internal/domain/main-entities/checkout-polies"
+	pl "simrs-vx/pkg/logger"
+	pu "simrs-vx/pkg/use-case-helper"
+
+	"gorm.io/gorm"
+)
+
+type middlewareRunner struct {
+	Event  *pl.Event
+	Tx     *gorm.DB
+	MwType pu.MWType
+}
+
+// NewMiddlewareExecutor creates a new middleware executor
+func newMiddlewareRunner(event *pl.Event, tx *gorm.DB) *middlewareRunner {
+	return &middlewareRunner{
+		Event: event,
+		Tx:    tx,
+	}
+}
+
+// ExecuteCreateMiddleware executes create middleware
+func (me *middlewareRunner) RunCreateMiddleware(middlewares []createMw, input *cp.CreateDto, data *cp.CheckoutPolies) error {
+	for _, middleware := range middlewares {
+		logData := pu.GetLogData(input, data)
+
+		pl.SetLogInfo(me.Event, logData, "started", middleware.Name)
+
+		if err := middleware.Func(input, data, me.Tx); err != nil {
+			return pu.HandleMiddlewareError(me.Event, string(me.MwType), middleware.Name, logData, err)
+		}
+
+		pl.SetLogInfo(me.Event, nil, "complete")
+	}
+	return nil
+}
+
+func (me *middlewareRunner) RunReadListMiddleware(middlewares []readListMw, input *cp.ReadListDto, data *cp.CheckoutPolies) error {
+	for _, middleware := range middlewares {
+		logData := pu.GetLogData(input, data)
+
+		pl.SetLogInfo(me.Event, logData, "started", middleware.Name)
+
+		if err := middleware.Func(input, data, me.Tx); err != nil {
+			return pu.HandleMiddlewareError(me.Event, string(me.MwType), middleware.Name, logData, err)
+		}
+
+		pl.SetLogInfo(me.Event, nil, "complete")
+	}
+	return nil
+}
+
+func (me *middlewareRunner) RunReadDetailMiddleware(middlewares []readDetailMw, input *cp.ReadDetailDto, data *cp.CheckoutPolies) error {
+	for _, middleware := range middlewares {
+		logData := pu.GetLogData(input, data)
+
+		pl.SetLogInfo(me.Event, logData, "started", middleware.Name)
+
+		if err := middleware.Func(input, data, me.Tx); err != nil {
+			return pu.HandleMiddlewareError(me.Event, string(me.MwType), middleware.Name, logData, err)
+		}
+
+		pl.SetLogInfo(me.Event, nil, "complete")
+	}
+	return nil
+}
+
+func (me *middlewareRunner) RunUpdateMiddleware(middlewares []readDetailMw, input *cp.ReadDetailDto, data *cp.CheckoutPolies) error {
+	for _, middleware := range middlewares {
+		logData := pu.GetLogData(input, data)
+
+		pl.SetLogInfo(me.Event, logData, "started", middleware.Name)
+
+		if err := middleware.Func(input, data, me.Tx); err != nil {
+			return pu.HandleMiddlewareError(me.Event, string(me.MwType), middleware.Name, logData, err)
+		}
+
+		pl.SetLogInfo(me.Event, nil, "complete")
+	}
+	return nil
+}
+
+func (me *middlewareRunner) RunDeleteMiddleware(middlewares []readDetailMw, input *cp.ReadDetailDto, data *cp.CheckoutPolies) error {
+	for _, middleware := range middlewares {
+		logData := pu.GetLogData(input, data)
+
+		pl.SetLogInfo(me.Event, logData, "started", middleware.Name)
+
+		if err := middleware.Func(input, data, me.Tx); err != nil {
+			return pu.HandleMiddlewareError(me.Event, string(me.MwType), middleware.Name, logData, err)
+		}
+
+		pl.SetLogInfo(me.Event, nil, "complete")
+	}
+	return nil
+}
+
+func (me *middlewareRunner) setMwType(mwType pu.MWType) {
+	me.MwType = mwType
+}

internal/use-case/main-use-case/checkout-polies/middleware.go

@@ -0,0 +1,9 @@
+package checkout_polies
+
+// example of middleware
+// func init() {
+// 	createPreMw = append(createPreMw,
+// 		CreateMw{Name: "modif-input", Func: pm.ModifInput},
+// 		CreateMw{Name: "check-data", Func: pm.CheckData},
+// 	)
+// }

internal/use-case/main-use-case/checkout-polies/tycovar.go

@@ -0,0 +1,44 @@
+/*
+DESCRIPTION:
+A sample, part of the package that contains type, constants, and/or variables.
+
+In this sample it also provides type and variable regarding the needs of the
+middleware to separate from main use-case which has the basic CRUD
+functionality. The purpose of this is to make the code more maintainable.
+*/
+package checkout_polies
+
+import (
+	"gorm.io/gorm"
+
+	cp "simrs-vx/internal/domain/main-entities/checkout-polies"
+)
+
+type createMw struct {
+	Name string
+	Func func(input *cp.CreateDto, data *cp.CheckoutPolies, tx *gorm.DB) error
+}
+
+type readListMw struct {
+	Name string
+	Func func(input *cp.ReadListDto, data *cp.CheckoutPolies, tx *gorm.DB) error
+}
+
+type readDetailMw struct {
+	Name string
+	Func func(input *cp.ReadDetailDto, data *cp.CheckoutPolies, tx *gorm.DB) error
+}
+
+type UpdateMw = readDetailMw
+type DeleteMw = readDetailMw
+
+var createPreMw []createMw      // preprocess middleware
+var createPostMw []createMw     // postprocess middleware
+var readListPreMw []readListMw  // ..
+var readListPostMw []readListMw // ..
+var readDetailPreMw []readDetailMw
+var readDetailPostMw []readDetailMw
+var updatePreMw []readDetailMw
+var updatePostMw []readDetailMw
+var deletePreMw []readDetailMw
+var deletePostMw []readDetailMw