add migration;add api create employee

internal/modules/master/employees/services/employees.service.go

@@ -0,0 +1,209 @@
+package service
+
+import (
+	"errors"
+	"fmt"
+	"strconv"
+	"strings"
+
+	entity "gitlab.com/mbugroup/lti-api.git/internal/entities"
+	repository "gitlab.com/mbugroup/lti-api.git/internal/modules/master/employees/repositories"
+	validation "gitlab.com/mbugroup/lti-api.git/internal/modules/master/employees/validations"
+	"gitlab.com/mbugroup/lti-api.git/internal/utils"
+
+	"github.com/go-playground/validator/v10"
+	"github.com/gofiber/fiber/v2"
+	"github.com/sirupsen/logrus"
+	"gorm.io/gorm"
+)
+
+type EmployeesService interface {
+	GetAll(ctx *fiber.Ctx, params *validation.Query) ([]entity.Employees, int64, error)
+	GetOne(ctx *fiber.Ctx, id uint) (*entity.Employees, error)
+	CreateOne(ctx *fiber.Ctx, req *validation.Create) (*entity.Employees, error)
+	UpdateOne(ctx *fiber.Ctx, req *validation.Update, id uint) (*entity.Employees, error)
+	DeleteOne(ctx *fiber.Ctx, id uint) error
+}
+
+type employeesService struct {
+	Log        *logrus.Logger
+	Validate   *validator.Validate
+	Repository repository.EmployeesRepository
+}
+
+func NewEmployeesService(repo repository.EmployeesRepository, validate *validator.Validate) EmployeesService {
+	return &employeesService{
+		Log:        utils.Log,
+		Validate:   validate,
+		Repository: repo,
+	}
+}
+
+func (s employeesService) withRelations(db *gorm.DB) *gorm.DB {
+	return db.
+		Preload("EmployeeKandangs.Kandang").
+		Preload("EmployeeKandangs.Kandang.Location").
+		Preload("EmployeeKandangs.Kandang.Pic").
+		Preload("EmployeeKandangs.Kandang.CreatedUser")
+}
+
+func (s employeesService) GetAll(c *fiber.Ctx, params *validation.Query) ([]entity.Employees, int64, error) {
+	if err := s.Validate.Struct(params); err != nil {
+		return nil, 0, err
+	}
+
+	offset := (params.Page - 1) * params.Limit
+
+	employeess, total, err := s.Repository.GetAll(c.Context(), offset, params.Limit, func(db *gorm.DB) *gorm.DB {
+		db = s.withRelations(db)
+		if params.Search != "" {
+			return db.Where("name LIKE ?", "%"+params.Search+"%")
+		}
+		return db.Order("created_at DESC").Order("updated_at DESC")
+	})
+
+	if err != nil {
+		s.Log.Errorf("Failed to get employeess: %+v", err)
+		return nil, 0, err
+	}
+	return employeess, total, nil
+}
+
+func (s employeesService) GetOne(c *fiber.Ctx, id uint) (*entity.Employees, error) {
+	employees, err := s.Repository.GetByID(c.Context(), id, s.withRelations)
+	if errors.Is(err, gorm.ErrRecordNotFound) {
+		return nil, fiber.NewError(fiber.StatusNotFound, "Employees not found")
+	}
+	if err != nil {
+		s.Log.Errorf("Failed get employees by id: %+v", err)
+		return nil, err
+	}
+	return employees, nil
+}
+
+func (s *employeesService) CreateOne(c *fiber.Ctx, req *validation.Create) (*entity.Employees, error) {
+	if err := s.Validate.Struct(req); err != nil {
+		return nil, err
+	}
+
+	name := strings.TrimSpace(req.Name)
+	if name == "" {
+		return nil, fiber.NewError(fiber.StatusBadRequest, "name cannot be empty")
+	}
+
+	kandangIDs, err := parseKandangIDs(req.KandangIDs)
+	if err != nil {
+		return nil, fiber.NewError(fiber.StatusBadRequest, err.Error())
+	}
+
+	if _, err := s.Repository.First(c.Context(), func(db *gorm.DB) *gorm.DB {
+		return db.Where("LOWER(name) = ?", strings.ToLower(name))
+	}); err == nil {
+		return nil, fiber.NewError(fiber.StatusBadRequest, "employee already exists")
+	} else if !errors.Is(err, gorm.ErrRecordNotFound) {
+		s.Log.Errorf("Failed checking employee uniqueness: %+v", err)
+		return nil, err
+	}
+
+	createBody := &entity.Employees{
+		Name:     name,
+		IsActive: req.IsActive,
+	}
+
+	if err := s.Repository.DB().Transaction(func(tx *gorm.DB) error {
+		repoTx := s.Repository.WithTx(tx)
+
+		if err := repoTx.CreateOne(c.Context(), createBody, nil); err != nil {
+			return err
+		}
+
+		relations := make([]entity.EmployeeKandang, 0, len(kandangIDs))
+		for _, kandangID := range kandangIDs {
+			relations = append(relations, entity.EmployeeKandang{
+				EmployeeId: createBody.Id,
+				KandangId:  kandangID,
+			})
+		}
+
+		if len(relations) > 0 {
+			if err := tx.WithContext(c.Context()).Create(&relations).Error; err != nil {
+				return err
+			}
+		}
+
+		return nil
+	}); err != nil {
+		s.Log.Errorf("Failed to create employees: %+v", err)
+		return nil, err
+	}
+
+	return s.GetOne(c, createBody.Id)
+}
+
+func (s employeesService) UpdateOne(c *fiber.Ctx, req *validation.Update, id uint) (*entity.Employees, error) {
+	if err := s.Validate.Struct(req); err != nil {
+		return nil, err
+	}
+
+	updateBody := make(map[string]any)
+
+	if req.Name != nil {
+		updateBody["name"] = *req.Name
+	}
+
+	if len(updateBody) == 0 {
+		return s.GetOne(c, id)
+	}
+
+	if err := s.Repository.PatchOne(c.Context(), id, updateBody, nil); err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return nil, fiber.NewError(fiber.StatusNotFound, "Employees not found")
+		}
+		s.Log.Errorf("Failed to update employees: %+v", err)
+		return nil, err
+	}
+
+	return s.GetOne(c, id)
+}
+
+func (s employeesService) DeleteOne(c *fiber.Ctx, id uint) error {
+	if err := s.Repository.DeleteOne(c.Context(), id); err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return fiber.NewError(fiber.StatusNotFound, "Employees not found")
+		}
+		s.Log.Errorf("Failed to delete employees: %+v", err)
+		return err
+	}
+	return nil
+}
+
+func parseKandangIDs(raw string) ([]uint, error) {
+	parts := strings.Split(raw, ",")
+	ids := make([]uint, 0, len(parts))
+	seen := make(map[uint]struct{})
+
+	for _, part := range parts {
+		value := strings.TrimSpace(part)
+		if value == "" {
+			continue
+		}
+
+		parsed, err := strconv.ParseUint(value, 10, 64)
+		if err != nil {
+			return nil, fmt.Errorf("invalid kandang id: %s", value)
+		}
+
+		id := uint(parsed)
+		if _, ok := seen[id]; ok {
+			continue
+		}
+		seen[id] = struct{}{}
+		ids = append(ids, id)
+	}
+
+	if len(ids) == 0 {
+		return nil, errors.New("kandang_ids must contain at least one valid id")
+	}
+
+	return ids, nil
+}