implemented caching

1 files changed, 4 insertions, 7 deletions

diff --git a/server.go b/server.go
index 49dfb2b..76085d1 100644
--- a/server.go
+++ b/server.go
@@ -14,13 +14,9 @@ var (
 	// Store a list of categories
 	categories []string
 
-	// Map a category to it's age on disk
-	// If a category is downloaded, it is added to this map with it's Unix epoch
-	// timestamp.
-	// If the category is too old, re-download it
-	// TODO: Define what "to old" acutually means and what default value it
-	// might get
-	categoryAge = make(map[string]int)
+	// Threshold defining how old a category must be before it is considered "to
+	// old" (in seconds)
+	categoryAgeThreshold int
 
 	// Define the port the server should listen on
 	port int
@@ -44,5 +40,6 @@ func main() {
 
 func initFlags() {
 	flag.IntVar(&port, "p", 8080, "the port the server should listen on")
+	flag.IntVar(&categoryAgeThreshold, "a", 10, "max category age in seconds")
 	flag.Parse()
 }