refactor: reorganize functions

filepick.go

@@ -0,0 +1,97 @@
+package main
+
+import (
+	"fmt"
+	"log"
+
+	"github.com/godbus/dbus/v5"
+)
+
+const (
+	busName        = "org.freedesktop.portal.Desktop"
+	objectPath     = "/org/freedesktop/portal/desktop"
+	methodName     = "org.freedesktop.portal.FileChooser.OpenFile"
+	requestIFace   = "org.freedesktop.portal.Request"
+	responseSignal = "Response"
+	handleToken    = "revelation"
+	dialogTitle    = "Choose file"
+)
+
+func SelectFile() string {
+	conn := connectDBus()
+	defer conn.Close()
+
+	responsePath := openFileDialog(conn)
+	setupSignalHandler(conn, responsePath)
+
+	fmt.Println("File picker triggered, waiting for response...")
+	return processSignal(<-waitForSignal(conn), responsePath)
+}
+
+func connectDBus() *dbus.Conn {
+	conn, err := dbus.ConnectSessionBus()
+	if err != nil {
+		log.Fatalf("Failed to connect to session bus: %v", err)
+	}
+	return conn
+}
+
+func openFileDialog(conn *dbus.Conn) dbus.ObjectPath {
+	options := map[string]dbus.Variant{
+		"handle_token": dbus.MakeVariant(handleToken),
+		"title":        dbus.MakeVariant(dialogTitle),
+	}
+
+	call := conn.Object(busName, objectPath).Call(methodName, 0, "", "", options)
+	if call.Err != nil {
+		log.Fatalf("Failed to trigger file picker: %v", call.Err)
+	}
+
+	return call.Body[0].(dbus.ObjectPath)
+}
+
+func setupSignalHandler(conn *dbus.Conn, path dbus.ObjectPath) {
+	err := conn.AddMatchSignal(
+		dbus.WithMatchInterface(requestIFace),
+		dbus.WithMatchMember(responseSignal),
+		dbus.WithMatchPathNamespace(path),
+	)
+	if err != nil {
+		log.Fatalf("Failed to add signal match: %v", err)
+	}
+}
+
+func waitForSignal(conn *dbus.Conn) <-chan *dbus.Signal {
+	ch := make(chan *dbus.Signal, 1)
+	conn.Signal(ch)
+	return ch
+}
+
+func processSignal(signal *dbus.Signal, expectedPath dbus.ObjectPath) string {
+	if signal.Path != expectedPath || signal.Name != requestIFace+"."+responseSignal {
+		return ""
+	}
+
+	if len(signal.Body) < 2 {
+		// nothing selected
+		return ""
+	}
+
+	results, ok := signal.Body[1].(map[string]dbus.Variant)
+	if !ok {
+		// invalid response
+		return ""
+	}
+
+	urisVariant, exists := results["uris"]
+	if !exists {
+		// nothing selected
+		return ""
+	}
+
+	uris, ok := urisVariant.Value().([]string)
+	if ok && len(uris) > 0 {
+		return uris[0]
+	}
+	return ""
+}

go.mod

@@ -1,3 +1,5 @@
 module github.com/jabuxas/revelation
 
 go 1.23.4
+
+require github.com/godbus/dbus/v5 v5.1.0 // indirect

go.sum

@@ -0,0 +1,2 @@
+github.com/godbus/dbus/v5 v5.1.0 h1:4KLkAxT3aOY8Li4FRJe/KvhoNFFxo0m6fNuFUO8QJUk=
+github.com/godbus/dbus/v5 v5.1.0/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=

revelation.go

@@ -2,8 +2,13 @@ package main
 
 import (
 	"fmt"
+	"strings"
 )
 
 func main() {
-	fmt.Println("Hello world")
+	uploadFile(strings.Split(SelectFile(), "file://")[1])
+}
+
+func uploadFile(file string) {
+	fmt.Println(file)
 }