package transform

import "fmt"

type Registry struct {
	transformers map[string]Transformer
}

func NewRegistry() *Registry {
	return &Registry{transformers: make(map[string]Transformer)}
}

func (r *Registry) Register(name string, transformer Transformer) error {
	if name == "" {
		return fmt.Errorf("transform name is required")
	}
	if transformer == nil {
		return fmt.Errorf("transformer %s is nil", name)
	}
	if _, exists := r.transformers[name]; exists {
		return fmt.Errorf("transform %s is already registered", name)
	}
	r.transformers[name] = transformer
	return nil
}

func (r *Registry) Get(name string) (Transformer, bool) {
	transformer, ok := r.transformers[name]
	return transformer, ok
}