refactor(cli): split command.go into flags, config, apikeys (SRP)

Move cobra flag registration, viper binding, and explicit-flag tracking into
flags.go alongside Flags and NewFlags. Add config.go for InitConfig and
apikeys.go for GetOpenAIKey/GetGoogleAPIKey. command.go now only defines
CreateRootCommand.

Made-with: Cursor

1 files changed, 35 insertions, 0 deletions

diff --git a/internal/cli/apikeys.go b/internal/cli/apikeys.go
new file mode 100644
index 0000000..0bcaa49
--- /dev/null
+++ b/internal/cli/apikeys.go
@@ -0,0 +1,35 @@
+package cli
+
+import (
+	"os"
+
+	"github.com/spf13/viper"
+)
+
+// GetOpenAIKey retrieves the OpenAI API key from environment or config
+func GetOpenAIKey() string {
+	// First check environment variable
+	if key := os.Getenv("OPENAI_API_KEY"); key != "" {
+		return key
+	}
+
+	// Then check config file
+	return viper.GetString("audio.openai_key")
+}
+
+// GetGoogleAPIKey retrieves the Google API key from GOOGLE_API_KEY or config.
+// It prefers image.google_api_key and falls back to google.api_key for older configs.
+func GetGoogleAPIKey() string {
+	// First check environment variable
+	if key := os.Getenv("GOOGLE_API_KEY"); key != "" {
+		return key
+	}
+
+	// Then check config file
+	if key := viper.GetString("image.google_api_key"); key != "" {
+		return key
+	}
+
+	// Fall back to the legacy key for compatibility with older configs.
+	return viper.GetString("google.api_key")
+}