Standardize logging across codebase with consistent structured format

main.go

@@ -3,7 +3,6 @@ package main
 import (
 	"database/sql"
 	"flag"
-	"fmt"
 	"log"
 	"os"
 	"os/signal"
@@ -25,7 +24,9 @@ var (
 )
 
 func main() {
-	fmt.Fprintf(os.Stderr, "[%s] starting gomeshalerter\n", runStart.Format("15:04:05"))
+	logInfo("main", "Starting gomeshalerter", map[string]interface{}{
+		"timestamp": runStart.Format("15:04:05"),
+	})
 	setupLogging()
 	defer flushLog()
 
@@ -37,12 +38,14 @@ func main() {
 
 	// Define a cleanup function to properly close resources
 	cleanup := func() {
-		fmt.Fprintf(os.Stderr, "[shutdown] Closing database...\n")
+		logInfo("shutdown", "Closing database", nil)
 		if err := db.Close(); err != nil {
-			fmt.Fprintf(os.Stderr, "[shutdown] Error closing database: %v\n", err)
+			logInfo("shutdown", "Error closing database", map[string]interface{}{
+				"error": err.Error(),
+			})
 		}
 		flushLog()
-		fmt.Fprintf(os.Stderr, "[shutdown] Cleanup complete\n")
+		logInfo("shutdown", "Cleanup complete", nil)
 	}
 	// Ensure cleanup runs on normal exit
 	defer cleanup()
@@ -57,7 +60,10 @@ func main() {
 		ollamaURL = "http://localhost:11434" // Default Ollama server URL
 	}
 
-	fmt.Fprintf(os.Stderr, "[ollama] Using model: %s at %s\n", ollamaModel, ollamaURL)
+	logInfo("ollama", "Using model", map[string]interface{}{
+		"model": ollamaModel,
+		"url":   ollamaURL,
+	})
 
 	// Replace --broadcast flag with --dry-run flag (default is to broadcast)
 	dryRun := flag.Bool("dry-run", false, "don't actually send to meshtastic, just print what would be sent")
@@ -75,9 +81,9 @@ func main() {
 
 	go func() {
 		<-sigChan
-		fmt.Fprintf(os.Stderr, "[shutdown] Received signal, performing cleanup before exit...\n")
+		logInfo("shutdown", "Received signal, performing cleanup before exit", nil)
 		cleanup()
-		fmt.Fprintf(os.Stderr, "[shutdown] Exiting...\n")
+		logInfo("shutdown", "Exiting", nil)
 		os.Exit(0) // Exit after cleanup
 	}()
 
@@ -118,5 +124,5 @@ func main() {
 
 	// Wait for all goroutines to finish
 	wg.Wait()
-	fmt.Fprintf(os.Stderr, "[shutdown] All goroutines stopped, exiting...\n")
+	logInfo("shutdown", "All goroutines stopped, exiting", nil)
 }