No One Can Stop Me Now

services/setec-manager/internal/hosting/config.go

@@ -0,0 +1,107 @@
+package hosting
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+// ProviderConfigStore manages saved provider configurations on disk.
+// Each provider's config is stored as a separate JSON file with restrictive
+// permissions (0600) since the files contain API keys.
+type ProviderConfigStore struct {
+	configDir string
+}
+
+// NewConfigStore creates a new store rooted at configDir. The directory is
+// created on first write if it does not already exist.
+func NewConfigStore(configDir string) *ProviderConfigStore {
+	return &ProviderConfigStore{configDir: configDir}
+}
+
+// configPath returns the file path for a provider's config file.
+func (s *ProviderConfigStore) configPath(providerName string) string {
+	return filepath.Join(s.configDir, providerName+".json")
+}
+
+// ensureDir creates the config directory if it does not exist.
+func (s *ProviderConfigStore) ensureDir() error {
+	return os.MkdirAll(s.configDir, 0700)
+}
+
+// Save writes a provider configuration to disk. It overwrites any existing
+// config for the same provider.
+func (s *ProviderConfigStore) Save(providerName string, cfg ProviderConfig) error {
+	if providerName == "" {
+		return fmt.Errorf("hosting: provider name must not be empty")
+	}
+	if err := s.ensureDir(); err != nil {
+		return fmt.Errorf("hosting: create config dir: %w", err)
+	}
+
+	data, err := json.MarshalIndent(cfg, "", "  ")
+	if err != nil {
+		return fmt.Errorf("hosting: marshal config for %s: %w", providerName, err)
+	}
+
+	path := s.configPath(providerName)
+	if err := os.WriteFile(path, data, 0600); err != nil {
+		return fmt.Errorf("hosting: write config for %s: %w", providerName, err)
+	}
+	return nil
+}
+
+// Load reads a provider configuration from disk.
+func (s *ProviderConfigStore) Load(providerName string) (*ProviderConfig, error) {
+	path := s.configPath(providerName)
+	data, err := os.ReadFile(path)
+	if err != nil {
+		if os.IsNotExist(err) {
+			return nil, fmt.Errorf("hosting: no config found for provider %q", providerName)
+		}
+		return nil, fmt.Errorf("hosting: read config for %s: %w", providerName, err)
+	}
+
+	var cfg ProviderConfig
+	if err := json.Unmarshal(data, &cfg); err != nil {
+		return nil, fmt.Errorf("hosting: parse config for %s: %w", providerName, err)
+	}
+	return &cfg, nil
+}
+
+// Delete removes a provider's saved configuration.
+func (s *ProviderConfigStore) Delete(providerName string) error {
+	path := s.configPath(providerName)
+	if err := os.Remove(path); err != nil {
+		if os.IsNotExist(err) {
+			return nil // already gone
+		}
+		return fmt.Errorf("hosting: delete config for %s: %w", providerName, err)
+	}
+	return nil
+}
+
+// ListConfigured returns the names of all providers that have saved configs.
+func (s *ProviderConfigStore) ListConfigured() ([]string, error) {
+	entries, err := os.ReadDir(s.configDir)
+	if err != nil {
+		if os.IsNotExist(err) {
+			return nil, nil // no directory means no configs
+		}
+		return nil, fmt.Errorf("hosting: list configs: %w", err)
+	}
+
+	var names []string
+	for _, e := range entries {
+		if e.IsDir() {
+			continue
+		}
+		name := e.Name()
+		if strings.HasSuffix(name, ".json") {
+			names = append(names, strings.TrimSuffix(name, ".json"))
+		}
+	}
+	return names, nil
+}