65 lines
1.5 KiB
Go
65 lines
1.5 KiB
Go
package config
|
|
|
|
import (
|
|
"fmt"
|
|
"os"
|
|
|
|
"gopkg.in/yaml.v3"
|
|
)
|
|
|
|
// Config describes the full gateway configuration file.
|
|
type Config struct {
|
|
Server ServerConfig `yaml:"server"`
|
|
Providers ProvidersConfig `yaml:"providers"`
|
|
}
|
|
|
|
// ServerConfig controls HTTP server values.
|
|
type ServerConfig struct {
|
|
Address string `yaml:"address"`
|
|
}
|
|
|
|
// ProvidersConfig wraps supported provider settings.
|
|
type ProvidersConfig struct {
|
|
Google ProviderConfig `yaml:"google"`
|
|
Anthropic ProviderConfig `yaml:"anthropic"`
|
|
OpenAI ProviderConfig `yaml:"openai"`
|
|
}
|
|
|
|
// ProviderConfig contains shared provider configuration fields.
|
|
type ProviderConfig struct {
|
|
APIKey string `yaml:"api_key"`
|
|
Model string `yaml:"model"`
|
|
Endpoint string `yaml:"endpoint"`
|
|
}
|
|
|
|
// Load reads and parses a YAML configuration file and applies env overrides.
|
|
func Load(path string) (*Config, error) {
|
|
data, err := os.ReadFile(path)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("read config: %w", err)
|
|
}
|
|
|
|
var cfg Config
|
|
if err := yaml.Unmarshal(data, &cfg); err != nil {
|
|
return nil, fmt.Errorf("parse config: %w", err)
|
|
}
|
|
|
|
cfg.applyEnvOverrides()
|
|
return &cfg, nil
|
|
}
|
|
|
|
func (cfg *Config) applyEnvOverrides() {
|
|
overrideAPIKey(&cfg.Providers.Google, "GOOGLE_API_KEY")
|
|
overrideAPIKey(&cfg.Providers.Anthropic, "ANTHROPIC_API_KEY")
|
|
overrideAPIKey(&cfg.Providers.OpenAI, "OPENAI_API_KEY")
|
|
}
|
|
|
|
func overrideAPIKey(cfg *ProviderConfig, envKey string) {
|
|
if cfg == nil {
|
|
return
|
|
}
|
|
if v := os.Getenv(envKey); v != "" {
|
|
cfg.APIKey = v
|
|
}
|
|
}
|