First working? version with persistent state

main.go

@@ -3,6 +3,9 @@ package main
 import (
 	"log"
 	"net/http"
+	"os"
+	"os/signal"
+	"syscall"
 
 	"gitlab.hamburg.ccc.de/ccchh/spaceapid/handlers"
 	"gitlab.hamburg.ccc.de/ccchh/spaceapid/util"
@@ -15,10 +18,23 @@ func main() {
 	log.Println("Reading initial SpaceAPI response from", config.TemplatePath)
 	spaceApiResponse := util.ParseTemplate(config.TemplatePath)
 
+	// Merge old state if present
+	util.MergeOldState(&spaceApiResponse)
+
 	// Register HTTP handlers
 	http.HandleFunc("/", handlers.Root(&spaceApiResponse))
 	http.HandleFunc("/state/open", handlers.StateOpen(config.BAUsername, config.BAPassword, &spaceApiResponse))
 
+	// Start webserver
 	log.Println("Starting HTTP server...")
-	log.Fatalln(http.ListenAndServe(":8080", nil))
+	go log.Fatalln(http.ListenAndServe(":8080", nil))
+
+	// Wait for exit signal
+	sc := make(chan os.Signal, 1)
+	signal.Notify(sc, syscall.SIGINT, syscall.SIGTERM)
+	<-sc
+
+	// Save state for next run
+	log.Println("Saving state and shutting down...")
+	util.SaveCurrentState(spaceApiResponse)
 }