Fix mutexes + port argument

DirectoryIndexers/DirectoryIndexer.go

@@ -29,7 +29,6 @@ func Index(path string, results chan FileList) {
 
 	// Initialize the RWMutex HERE manually because *IT IS A POINTER TO A MUTEX*, so it defaults to a nil value
 	FL.RWMutex = &sync.RWMutex{}
-	FL.Lock()
 
 	fmt.Println("Scanning archive...")
 
@@ -89,8 +88,6 @@ func Index(path string, results chan FileList) {
 		}
 	}
 
-	FL.Unlock()
-
 	results <- FL
 	close(results)
 

main.go

@@ -6,6 +6,8 @@ import (
 	"fmt"
 	"net/http"
 	"os"
+	"strconv"
+	"sync"
 	"time"
 	"ytdlp-viewer/DirectoryIndexers"
 	"ytdlp-viewer/PageHandlers"
@@ -14,10 +16,14 @@ import (
 func main() {
 	var path string
 	flag.StringVar(&path, "path", "./", "the full path to the ytdlp archive (with a / suffix)")
+	var port int
+	flag.IntVar(&port, "port", 8000, "the port for the web panel to listen on")
 
 	flag.Parse()
 
 	var FL DirectoryIndexers.FileList
+	FL.RWMutex = &sync.RWMutex{}
+
 	go func() {
 		for {
 			resultChannel := make(chan DirectoryIndexers.FileList)
@@ -25,7 +31,11 @@ func main() {
 			fmt.Println("Starting scanner at", path)
 			go DirectoryIndexers.Index(path, resultChannel)
 
-			FL = <-resultChannel
+			refreshedFL := <-resultChannel
+			FL.Lock()
+			FL.Files = refreshedFL.Files
+			FL.Unlock()
+
 			time.Sleep(60 * time.Second)
 		}
 	}()
@@ -44,7 +54,7 @@ func main() {
 	})
 	http.Handle("/videos/", http.StripPrefix("/videos/", http.FileServer(http.Dir(path))))
 
-	err := http.ListenAndServe(":8000", nil)
+	err := http.ListenAndServe(":" + strconv.Itoa(port), nil)
 	if err != nil {
 		fmt.Println(err)
 		os.Exit(1)