feat: Added validator service

field/errors.go → field/birthdate/errors.go

@@ -1,4 +1,4 @@
-package field
+package birthdate
 
 import (
 	"errors"

go.mod

@@ -2,4 +2,14 @@ module github.com/ralvarezdev/go-validator
 
 go 1.23.4
 
-require github.com/ralvarezdev/go-flags v0.2.0 // indirect
+require (
+	github.com/ralvarezdev/go-flags v0.2.0
+	google.golang.org/grpc v1.69.2
+	google.golang.org/protobuf v1.36.0
+)
+
+require (
+	github.com/ralvarezdev/go-logger v0.1.0 // indirect
+	golang.org/x/sys v0.26.0 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20241015192408-796eee8c2d53 // indirect
+)

go.sum

@@ -1,3 +1,20 @@
-github.com/ralvarezdev/go-flags v0.1.0 h1:WG6eMbS2yL+UYtI3X8R/HbisrfEgzLiMKMWqXanwyys=
-github.com/ralvarezdev/go-flags v0.1.0/go.mod h1:pYw9H7NJ07Y5asZDC/EI5bpBLR0kdL2ISsh6X5ws+3s=
+github.com/golang/protobuf v1.5.4 h1:i7eJL8qZTpSEXOPTxNKhASYpMn+8e5Q6AdndVa1dWek=
+github.com/golang/protobuf v1.5.4/go.mod h1:lnTiLA8Wa4RWRcIUkrtSVa5nRhsEGBg48fD6rSs7xps=
+github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
+github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+github.com/ralvarezdev/go-flags v0.2.0 h1:NdMuJgCv2f9RysYOMHQQM1BT9HGv6PPNDRYPT5T+d2c=
 github.com/ralvarezdev/go-flags v0.2.0/go.mod h1:pYw9H7NJ07Y5asZDC/EI5bpBLR0kdL2ISsh6X5ws+3s=
+github.com/ralvarezdev/go-logger v0.1.0 h1:i2AI1nlxU6Hizvk75Vc8wtFydiVrqIeeRbJwiuO/69A=
+github.com/ralvarezdev/go-logger v0.1.0/go.mod h1:v5OvFrkS+wsYNTCVegXWiRhBtcYrQJr4LDMDntvpAos=
+golang.org/x/net v0.30.0 h1:AcW1SDZMkb8IpzCdQUaIq2sP4sZ4zw+55h6ynffypl4=
+golang.org/x/net v0.30.0/go.mod h1:2wGyMJ5iFasEhkwi13ChkO/t1ECNC4X4eBKkVFyYFlU=
+golang.org/x/sys v0.26.0 h1:KHjCJyddX0LoSTb3J+vWpupP9p0oznkqVk/IfjymZbo=
+golang.org/x/sys v0.26.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/text v0.19.0 h1:kTxAhCbGbxhK0IwgSKiMO5awPoDQ0RpfiVYBfK860YM=
+golang.org/x/text v0.19.0/go.mod h1:BuEKDfySbSR4drPmRPG/7iBdf8hvFMuRexcpahXilzY=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20241015192408-796eee8c2d53 h1:X58yt85/IXCx0Y3ZwN6sEIKZzQtDEYaBWrDvErdXrRE=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20241015192408-796eee8c2d53/go.mod h1:GX3210XPVPUjJbTUbvwI8f2IpZDMZuPJWDzDuebbviI=
+google.golang.org/grpc v1.69.2 h1:U3S9QEtbXC0bYNvRtcoklF3xGtLViumSYxWykJS+7AU=
+google.golang.org/grpc v1.69.2/go.mod h1:vyjdE6jLBI76dgpDojsFGNaHlxdjXN9ghpnd2o7JGZ4=
+google.golang.org/protobuf v1.36.0 h1:mjIs9gYtt56AzC4ZaffQuh88TZurBGhIJMBZGSxNerQ=
+google.golang.org/protobuf v1.36.0/go.mod h1:9fA7Ob0pmnwhb644+1+CVWFRbNajQ6iRojtC/QF5bRE=

service/errors.go

@@ -0,0 +1,10 @@
+package service
+
+import (
+	"errors"
+)
+
+var (
+	NilValidatorError = errors.New("validator cannot be nil")
+	NilMessageError   = errors.New("message cannot be nil")
+)

service/validator.go

@@ -0,0 +1,101 @@
+package service
+
+import (
+	goflagmode "github.com/ralvarezdev/go-flags/mode"
+	govalidatorbirthdate "github.com/ralvarezdev/go-validator/field/birthdate"
+	govalidatormail "github.com/ralvarezdev/go-validator/field/mail"
+	govalidatormapper "github.com/ralvarezdev/go-validator/structs/mapper"
+	govalidatorvalidations "github.com/ralvarezdev/go-validator/structs/validations"
+	"google.golang.org/protobuf/types/known/timestamppb"
+	"time"
+)
+
+type (
+	// Validator interface
+	Validator interface {
+		ModeFlag() *goflagmode.Flag
+		ValidateEmail(
+			emailField string,
+			email string,
+			mapperValidations *govalidatorvalidations.MapperValidations,
+		)
+		ValidateBirthdate(
+			birthdateField string,
+			birthdate *timestamppb.Timestamp,
+			mapperValidations *govalidatorvalidations.MapperValidations,
+		)
+		ValidateNilFields(request interface{}, mapper *govalidatormapper.Mapper) (
+			*govalidatorvalidations.MapperValidations,
+			error,
+		)
+		CheckValidations(mapperValidations *govalidatorvalidations.MapperValidations) *string
+	}
+
+	// DefaultValidator struct
+	DefaultValidator struct {
+		mode *goflagmode.Flag
+	}
+)
+
+// NewDefaultValidator creates a new default validator
+func NewDefaultValidator(mode *goflagmode.Flag) *DefaultValidator {
+	return &DefaultValidator{
+		mode: mode,
+	}
+}
+
+// ModeFlag returns the mode flag
+func (d *DefaultValidator) ModeFlag() *goflagmode.Flag {
+	return d.mode
+}
+
+// ValidateEmail validates the email address field
+func (d *DefaultValidator) ValidateEmail(
+	emailField string,
+	email string,
+	mapperValidations *govalidatorvalidations.MapperValidations,
+) {
+	if _, err := govalidatormail.ValidMailAddress(email); err != nil {
+		mapperValidations.AddFailedFieldValidationError(
+			emailField,
+			govalidatormail.InvalidMailAddressError,
+		)
+	}
+}
+
+// ValidateBirthdate validates the birthdate field
+func (d *DefaultValidator) ValidateBirthdate(
+	birthdateField string,
+	birthdate *timestamppb.Timestamp,
+	mapperValidations *govalidatorvalidations.MapperValidations,
+) {
+	if birthdate == nil || birthdate.AsTime().After(time.Now()) {
+		mapperValidations.AddFailedFieldValidationError(
+			birthdateField,
+			govalidatorbirthdate.InvalidBirthdateError,
+		)
+	}
+}
+
+// ValidateNilFields validates the nil fields
+func (d *DefaultValidator) ValidateNilFields(
+	request interface{},
+	mapper *govalidatormapper.Mapper,
+) (*govalidatorvalidations.MapperValidations, error) {
+	return govalidatorvalidations.ValidateMapperNilFields(
+		request,
+		mapper,
+		d.mode,
+	)
+}
+
+// CheckValidations checks the validations and returns a pointer to the error message
+func (d *DefaultValidator) CheckValidations(
+	mapperValidations *govalidatorvalidations.MapperValidations,
+) *string {
+	// Get the error message from the validations if there are any
+	if mapperValidations.HasFailed() {
+		return mapperValidations.StringPtr()
+	}
+	return nil
+}

structs/validations/struct_fields_validations.go

@@ -215,8 +215,8 @@ func (s *MapperValidations) FailedValidationsMessage(level int) *string {
 	return &messageString
 }
 
-// String returns a formatted error message. If there are no failed validations, it returns nil
-func (s *MapperValidations) String() *string {
+// StringPtr returns a pointer to the failed validations message
+func (s *MapperValidations) StringPtr() *string {
 	// Return the failed validations message
 	message := s.FailedValidationsMessage(0)