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|
package tts
import (
"fmt"
"reflect"
"codeberg.org/snonux/comicforge/internal/provider"
)
// Config exposes the configured TTS provider settings.
type Config interface {
provider.TTSConfig
GoogleAPIKey() string
TTSModel() string
}
type registryConfig struct {
Config
voice string
}
// Registry resolves provider names to factories.
type Registry struct {
*provider.Registry[provider.TTSProvider, registryConfig]
}
// NewRegistry creates an empty TTS-provider registry.
func NewRegistry() *Registry {
return &Registry{
Registry: provider.NewRegistry[provider.TTSProvider, registryConfig](),
}
}
// DefaultRegistry returns the built-in TTS provider registry.
func DefaultRegistry() *Registry {
registry := NewRegistry()
registry.Register(provider.Gemini, func(cfg registryConfig) (provider.TTSProvider, error) {
geminiProvider := NewGeminiProvider(&GeminiConfig{
APIKey: cfg.GoogleAPIKey(),
Model: cfg.TTSModel(),
Voice: cfg.voice,
})
if err := geminiProvider.IsAvailable(); err != nil {
return nil, err
}
return geminiProvider, nil
})
registry.Register(provider.OpenAI, func(registryConfig) (provider.TTSProvider, error) {
return nil, fmt.Errorf("tts provider %q is not implemented", provider.OpenAI)
})
return registry
}
// Has reports whether a factory is registered for name.
func (r *Registry) Has(name string) bool {
if r == nil || r.Registry == nil {
return false
}
_, ok := r.Resolve(name)
return ok
}
// NewFromConfig resolves the provider name from cfg and constructs it.
func (r *Registry) NewFromConfig(cfg Config, voice string) (provider.TTSProvider, error) {
if r == nil || r.Registry == nil {
return nil, fmt.Errorf("tts registry is required")
}
if isNilValue(cfg) {
return nil, fmt.Errorf("tts config is required")
}
return r.New(cfg.TTSProviderName(), registryConfig{
Config: cfg,
voice: voice,
})
}
func isNilValue[T any](value T) bool {
v := reflect.ValueOf(value)
if !v.IsValid() {
return true
}
switch v.Kind() {
case reflect.Chan, reflect.Func, reflect.Interface, reflect.Map, reflect.Pointer, reflect.Slice:
return v.IsNil()
default:
return false
}
}
|
