Main starts either GUI or TUI. UI split from optima35.

main.py

@@ -1,8 +1,6 @@
-import sys
 import os
-import subprocess
 from argparse import ArgumentParser
-exif_file = "local_files/exif.yaml"
+
 # Mainly from ChatGPT
 def check_pyside_installed():
     try:
@@ -17,7 +15,7 @@ def start_gui():
 
 def start_tui():
     import tui
-    tui.main(exif_file)
+    tui.main(exif_file, tui_settings_file)
 
 def main():
     parser = ArgumentParser(description="Start the Optima35 application.")
@@ -43,4 +41,13 @@ def main():
             start_tui()
 
 if __name__ == "__main__":
+    if os.path.isfile("config/exif.yaml"):
+        exif_file = "config/exif.yaml"
+    elif os.path.isfile("config/exif_example.yaml"):
+        exif_file = "config/exif_example.yaml"
+        print("Fall back to exif example file...")
+    else:
+        print("Exif file missing, please ensure an exif file exist in config folder (exif.yaml, or exif_example_yaml)\nExiting...")
+        exit()
+    tui_settings_file = "config/tui_settings.yaml"
     main()