v0.2.1 doc update, various fixes, buggy

src/internal/config/loader.go

@@ -10,6 +10,11 @@ import (
 	lconfig "github.com/lixenwraith/config"
 )
 
+// LoadContext holds all configuration sources
+type LoadContext struct {
+	FlagConfig interface{} // Parsed command-line flags from main
+}
+
 func defaults() *Config {
 	return &Config{
 		Logging: DefaultLogConfig(),
@@ -49,9 +54,11 @@ func defaults() *Config {
 	}
 }
 
-func LoadWithCLI(cliArgs []string) (*Config, error) {
+// LoadWithCLI loads config with CLI flag overrides
+func LoadWithCLI(cliArgs []string, flagCfg interface{}) (*Config, error) {
 	configPath := GetConfigPath()
 
+	// Build configuration with all sources
 	cfg, err := lconfig.NewBuilder().
 		WithDefaults(defaults()).
 		WithEnvPrefix("LOGWISP_").
@@ -67,27 +74,86 @@ func LoadWithCLI(cliArgs []string) (*Config, error) {
 		Build()
 
 	if err != nil {
+		if strings.Contains(err.Error(), "not found") && configPath != "logwisp.toml" {
+			// If explicit config file specified and not found, fail
+			return nil, fmt.Errorf("config file not found: %s", configPath)
+		}
+
 		if !strings.Contains(err.Error(), "not found") {
 			return nil, fmt.Errorf("failed to load config: %w", err)
 		}
 	}
 
+	// Likely never happens
+	if cfg == nil {
+		return nil, fmt.Errorf("configuration builder returned nil config")
+	}
+
 	finalConfig := &Config{}
 	if err := cfg.Scan("", finalConfig); err != nil {
 		return nil, fmt.Errorf("failed to scan config: %w", err)
 	}
 
+	// Ensure we have valid config even with defaults
+	if finalConfig == nil {
+		return nil, fmt.Errorf("configuration scan produced nil config")
+	}
+
+	// Ensure critical fields are not nil
+	if finalConfig.Logging == nil {
+		finalConfig.Logging = DefaultLogConfig()
+	}
+
+	// Apply any console target transformations here
+	if err := applyConsoleTargetOverrides(finalConfig); err != nil {
+		return nil, fmt.Errorf("failed to apply console target overrides: %w", err)
+	}
+
 	return finalConfig, finalConfig.validate()
 }
 
-func customEnvTransform(path string) string {
-	env := strings.ReplaceAll(path, ".", "_")
-	env = strings.ToUpper(env)
-	env = "LOGWISP_" + env
-	return env
+// applyConsoleTargetOverrides centralizes console target configuration
+func applyConsoleTargetOverrides(cfg *Config) error {
+	// Check environment variable for console target override
+	consoleTarget := os.Getenv("LOGWISP_CONSOLE_TARGET")
+	if consoleTarget == "" {
+		return nil
+	}
+
+	// Validate console target value
+	validTargets := map[string]bool{
+		"stdout": true,
+		"stderr": true,
+		"split":  true,
+	}
+	if !validTargets[consoleTarget] {
+		return fmt.Errorf("invalid LOGWISP_CONSOLE_TARGET value: %s", consoleTarget)
+	}
+
+	// Apply to all console sinks
+	for i, pipeline := range cfg.Pipelines {
+		for j, sink := range pipeline.Sinks {
+			if sink.Type == "stdout" || sink.Type == "stderr" {
+				if sink.Options == nil {
+					cfg.Pipelines[i].Sinks[j].Options = make(map[string]any)
+				}
+				// Set target for split mode handling
+				cfg.Pipelines[i].Sinks[j].Options["target"] = consoleTarget
+			}
+		}
+	}
+
+	// Also update logging console target if applicable
+	if cfg.Logging.Console != nil && consoleTarget == "split" {
+		cfg.Logging.Console.Target = "split"
+	}
+
+	return nil
 }
 
+// GetConfigPath returns the configuration file path
 func GetConfigPath() string {
+	// Check if explicit config file was specified via flag or env
 	if configFile := os.Getenv("LOGWISP_CONFIG_FILE"); configFile != "" {
 		if filepath.IsAbs(configFile) {
 			return configFile
@@ -102,9 +168,22 @@ func GetConfigPath() string {
 		return filepath.Join(configDir, "logwisp.toml")
 	}
 
+	// Default locations
 	if homeDir, err := os.UserHomeDir(); err == nil {
-		return filepath.Join(homeDir, ".config", "logwisp.toml")
+		configPath := filepath.Join(homeDir, ".config", "logwisp.toml")
+		// Check if config exists in home directory
+		if _, err := os.Stat(configPath); err == nil {
+			return configPath
+		}
 	}
 
+	// Return current directory default
 	return "logwisp.toml"
+}
+
+func customEnvTransform(path string) string {
+	env := strings.ReplaceAll(path, ".", "_")
+	env = strings.ToUpper(env)
+	env = "LOGWISP_" + env
+	return env
 }