Fix bug can't retrieve file from child component

gui/main_window.py

@@ -1,5 +1,4 @@
 import tkinter as tk
-from tkinter import filedialog
 from threading import Thread
 from process.processor import run
 from gui.file_selector import FileSelector
@@ -23,14 +22,8 @@ def __init__(self, root):
         self.process_button = tk.Button(self.root, text="Process Achievements", command=self.process_achievements)
         self.process_button.place(relx=0.5, rely=0.5, anchor="center")
 
-    def browse_video(self):
-        video_path = filedialog.askopenfilename(filetypes=[("Video Files", "*.mp4")])
-        self.video_path = video_path
-        if self.video_path:
-            self.label.config(text=f"Selected Video: {self.video_path}")
-
     def process_achievements(self):
-        if hasattr(self, "video_path") and self.video_path:
+        if hasattr(self.file_selector, "selected_file") and self.file_selector.get_selected_file():
             self.process_button.config(state=tk.DISABLED)
             self.process_button.update()
             self.process_thread = Thread(target=self.process_achievements_thread)
@@ -39,9 +32,12 @@ def process_achievements(self):
             self.show_error("Please select a video file.")
 
     def process_achievements_thread(self):
-        run(self.video_path)
-        self.show_message("Achievements processing completed.")
-        self.process_button.config(state=tk.NORMAL)
+        # Get the selected file from the FileSelector instance
+        video_path = self.file_selector.get_selected_file()
+        if video_path:
+            run(video_path)
+            self.show_message("Achievements processing completed.")
+            self.process_button.config(state=tk.NORMAL)
 
     def show_error(self, message):
         tk.messagebox.showerror("Error", message)