import time
import os
from watchdog.observers import Observer
from watchdog.events import FileSystemEventHandler
from git_monitor.logger import logger
from git_monitor.git_manager import git_manager

class RepositoryWatcher:
    def __init__(self, path):
        self.path = path
        self.observer = Observer()
        self.event_handler = GitEventHandler()

    def start(self):
        self.observer.schedule(self.event_handler, self.path, recursive=True)
        self.observer.start()
        logger.info(f"Started monitoring: {self.path}")

    def stop(self):
        self.observer.stop()
        self.observer.join()
        logger.info(f"Stopped monitoring: {self.path}")

class GitEventHandler(FileSystemEventHandler):
    def on_modified(self, event):
        if not event.is_directory:
            self.handle_event(event, "modify")

    def on_created(self, event):
        if not event.is_directory:
            self.handle_event(event, "create")

    def on_deleted(self, event):
        if not event.is_directory:
            self.handle_event(event, "delete")

    def on_moved(self, event):
        if not event.is_directory:
            src_name = os.path.basename(event.src_path)
            dest_name = os.path.basename(event.dest_path)
            action = "rename"
            file_name = f"{src_name} -> {dest_name}"
            self.handle_event(event, action, custom_file_name=file_name)

    def handle_event(self, event, action, custom_file_name=None):
        # Ignore .git directory and the log file
        file_path = event.src_path if action != "rename" else event.dest_path
        file_name = os.path.basename(file_path)
        
        # Check if any part of the path is .git
        if ".git" in file_path.split(os.sep) or file_name == "git_monitor.log":
            return

        display_name = custom_file_name if custom_file_name else file_name
        logger.info(f"File event: {action} on {display_name}")
        
        repo_root = git_manager.repo_path
        if repo_root:
            if custom_file_name:
                # For renames, we use the custom format provided
                git_manager.commit_change(action, custom_file_name)
            else:
                rel_path = os.path.relpath(file_path, repo_root)
                git_manager.commit_change(action, rel_path)