import sublime
import sublime_plugin
import datetime
import os
import sys
from pathlib import Path
from typing import List, Optional, Tuple

class NewNoteCommand(sublime_plugin.WindowCommand):
    def run(self):
        # Get the current date formatted as YYYYMMDD and YYYY-MM-DD
        date_str_yyyymmdd = datetime.datetime.now().strftime("%Y%m%d")
        date_str_display = datetime.datetime.now().strftime("%Y-%m-%d")
        file_name = f"{date_str_yyyymmdd}.md"
        
        # Create the underline based on the length of date_str_display
        underline = '=' * len(date_str_display)
        
        # Get the project directory and look for a "Notes" or "notes" folder
        project_data = self.window.project_data()
        notes_path = None

        if project_data and 'folders' in project_data:
            for folder in project_data['folders']:
                folder_path = folder['path']
                if os.path.basename(folder_path).lower() == "notes":
                    notes_path = folder_path
                    break

        if notes_path:
            year, month, day = date_str_display.split('-')
            file_path = os.path.join(notes_path, year, month, file_name)

            # Check if file already exists
            if os.path.exists(file_path):
                sublime.message_dialog(f"The file '{file_name}' already exists.")
            else:
                # Create the new file and write the date string with a line underneath
                with open(file_path, 'w') as file:
                    file.write(f"{date_str_display}\n{underline}\n\n\n")
                # Open the file and set the cursor position
                new_view = self.window.open_file(file_path)
                self.set_cursor_position(new_view)

        else:
            sublime.message_dialog("No 'Notes' directory found in the project. Please add a 'Notes' folder.")

    def set_cursor_position(self, view):
        # Set the cursor position two lines beneath the underline
        def on_load():
            view.run_command("move_to", {"to": "bof"})
            for _ in range(3):
                view.run_command("move", {"by": "lines", "forward": True})
        
        # Add an event listener for when the file is loaded
        if view.is_loading():
            sublime.set_timeout_async(lambda: self.set_cursor_position(view), 100)
        else:
            on_load()

    def list_files(self, directory: str, ignore_extensions: Optional[List[str]] = None) -> List[Path]:
        if ignore_extensions is None:
            ignore_extensions = []
        return [file for file in Path(directory).glob("*") if file.is_file() and file.suffix not in ignore_extensions]

    def parse_file_date (self, file_name: str) -> Tuple[str, str]:
        year = file_name[:4]
        month = file_name[4:6]
        return year, month