File size: 2,319 Bytes
1c4c66b | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 | package customer
import (
"context"
"errors"
"sync"
"github.com/samber/lo"
)
type RequestValidatorKey string
type RequestValidator interface {
ValidateDeleteCustomer(context.Context, DeleteCustomerInput) error
ValidateCreateCustomer(context.Context, CreateCustomerInput) error
ValidateUpdateCustomer(context.Context, UpdateCustomerInput) error
}
var _ RequestValidator = (*NoopRequestValidator)(nil)
type NoopRequestValidator struct{}
func (NoopRequestValidator) ValidateDeleteCustomer(context.Context, DeleteCustomerInput) error {
return nil
}
func (NoopRequestValidator) ValidateCreateCustomer(context.Context, CreateCustomerInput) error {
return nil
}
func (NoopRequestValidator) ValidateUpdateCustomer(context.Context, UpdateCustomerInput) error {
return nil
}
type RequestValidatorRegistry interface {
RequestValidator
Register(RequestValidator)
}
func NewRequestValidatorRegistry() RequestValidatorRegistry {
return &requestValidatorRegistry{}
}
type requestValidatorRegistry struct {
mu sync.RWMutex
validators []RequestValidator
}
var (
_ RequestValidator = (*requestValidatorRegistry)(nil)
_ RequestValidatorRegistry = (*requestValidatorRegistry)(nil)
ErrValidatorAlreadyRegistered = errors.New("validator already registered")
)
func (r *requestValidatorRegistry) Register(v RequestValidator) {
r.mu.Lock()
defer r.mu.Unlock()
r.validators = append(r.validators, v)
}
func (r *requestValidatorRegistry) ValidateDeleteCustomer(ctx context.Context, input DeleteCustomerInput) error {
r.mu.RLock()
defer r.mu.RUnlock()
return errors.Join(
lo.Map(r.validators, func(v RequestValidator, _ int) error {
return v.ValidateDeleteCustomer(ctx, input)
})...,
)
}
func (r *requestValidatorRegistry) ValidateCreateCustomer(ctx context.Context, input CreateCustomerInput) error {
r.mu.RLock()
defer r.mu.RUnlock()
return errors.Join(
lo.Map(r.validators, func(v RequestValidator, _ int) error {
return v.ValidateCreateCustomer(ctx, input)
})...,
)
}
func (r *requestValidatorRegistry) ValidateUpdateCustomer(ctx context.Context, input UpdateCustomerInput) error {
r.mu.RLock()
defer r.mu.RUnlock()
return errors.Join(
lo.Map(r.validators, func(v RequestValidator, _ int) error {
return v.ValidateUpdateCustomer(ctx, input)
})...,
)
}
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