refactor: prepare backend refactor

backend-legacy/coconut-leaf.py

@@ -0,0 +1,84 @@
+import sys
+from argparse import ArgumentParser
+from typing import cast
+from pathlib import Path
+
+import server
+import config
+import utils
+import database
+import logger
+from logger import LOGGER, LoggerLevel
+
+
+def GetUsernamePassword() -> tuple[str, str]:
+    print("What is the first username of this calendar system?")
+    cache = input()
+    while not utils.IsValidUsername(cache):
+        print("Sorry, invalid data. Please try again.")
+        cache = input()
+    username = cache
+
+    print("Input this user password:")
+    cache = input()
+    while not utils.IsValidPassword(cache):
+        print("Sorry, invalid data. Please try again.")
+        cache = input()
+    password = cache
+
+    return (username, password)
+
+if __name__ == "__main__":
+    # Set as INFO level in default first,
+    # and we will change it once we load the configuration file.
+    logger.set_level(LoggerLevel.INFO)
+
+    # Receive arguments
+    parser = ArgumentParser(
+        description="The server of light, self-host and multi-account calendar system."
+    )
+    parser.add_argument(
+        "-c",
+        "--config",
+        required=True,
+        type=Path,
+        action="store",
+        metavar="CONFIG_TOML",
+        dest="config",
+        help="The configuration file for coconut-leaf",
+    )
+    parser.add_argument(
+        "-i",
+        "--init",
+        action="store_true",
+        dest="init",
+        help="Set for initialize the calendar system",
+    )
+    args = parser.parse_args()
+
+    # Show splash
+    LOGGER.info("Coconut-leaf")
+    LOGGER.info("A light, self-host and multi-account calendar system")
+    LOGGER.info("Project: https://github.com/yyc12345/coconut-leaf")
+    LOGGER.info("===================")
+
+    # Load config file
+    try:
+        config.setup_config(cast(Path, args.config))
+    except Exception as e:
+        LOGGER.critical(f"Error loading config file: {e}")
+        sys.exit(1)
+
+    # Change logging level again according to whether enable debug mode
+    logging_level = LoggerLevel.DEBUG if config.get_config().others.debug else LoggerLevel.INFO
+    logger.set_level(logging_level)
+
+    # Initialize the calendar system if needed
+    if cast(bool, args.init):
+        gotten_data = GetUsernamePassword()
+        calendar = database.CalendarDatabase()
+        calendar.init(*gotten_data)
+        calendar.close()
+
+    LOGGER.info("Staring server...")
+    server.run()