checkpointing, heavy dev

internal/config/config.go

@@ -1,13 +1,20 @@
+// Package config provides configuration management for hdmistat
 package config
 
 import (
 	"context"
 	"log/slog"
+	"os"
 	"time"
 
 	"git.eeqj.de/sneak/smartconfig"
 )
 
+const (
+	defaultWidth  = 1920
+	defaultHeight = 1080
+)
+
 // Config holds the application configuration
 type Config struct {
 	FramebufferDevice string
@@ -24,7 +31,7 @@ type Config struct {
 }
 
 // Load loads configuration from all available sources
-func Load(ctx context.Context) (*Config, error) {
+func Load(_ context.Context) (*Config, error) {
 	// Start with defaults
 	cfg := &Config{
 		FramebufferDevice: "/dev/fb0",
@@ -32,8 +39,8 @@ func Load(ctx context.Context) (*Config, error) {
 		UpdateInterval:    "1s",
 		Screens:           []string{"overview", "top_cpu", "top_memory"},
 		LogLevel:          "info",
-		Width:             1920,
-		Height:            1080,
+		Width:             defaultWidth,
+		Height:            defaultHeight,
 	}
 
 	// Try to load from the default location for hdmistat
@@ -77,6 +84,11 @@ func Load(ctx context.Context) (*Config, error) {
 		}
 	}
 
+	// Override with environment variables if set
+	if envLogLevel := os.Getenv("HDMISTAT_LOG_LEVEL"); envLogLevel != "" {
+		cfg.LogLevel = envLogLevel
+	}
+
 	// Parse durations
 	cfg.rotationDuration, err = time.ParseDuration(cfg.RotationInterval)
 	if err != nil {