Phase 1 of Sentinel is done. The entire backend logic is built and working. (Right Now it only sorts .pdf, sorting other types of files is part of phase 2)

Built a file scanner using pathlib. Path that reads a folder and prints each file’s name, extension, and size. Then extended it to move files based on their extension using shutil.move().

Added a JSON config system that loads and saves rules persistently between sessions. Each rule stores a name, file type, and destination folder.
Integrated watchdog to watch a folder in real time. When a new file appears, the rules engine checks its extension, finds a matching rule, creates the destination folder if needed, and moves the file automatically.

Finally built an undo system. Every automated move gets logged to config.json with the source and destination. Calling undo_last() reverses the most recent move and removes it from history.

Phase 2 starts now, replacing the terminal output with a PyQt6 desktop GUI and adding more rules to sort more types of files.