#!/usr/bin/python3

import argparse
import json
import os
from pathlib import Path
from alarm_api_client import AlarmApiClient


CONFIG_FILE = Path.home() / ".alarms.json"


def load_config() -> dict:
    """Load configuration from the config file."""
    if CONFIG_FILE.exists():
        with CONFIG_FILE.open() as f:
            return json.load(f)
    return {}


def save_config(config: dict) -> None:
    """Save configuration to the config file."""
    with CONFIG_FILE.open("w") as f:
        json.dump(config, f, indent=4)
    print(f"Configuration saved to {CONFIG_FILE}")


def main():
    parser = argparse.ArgumentParser(description="CLI for interacting with the Alarm API")
    parser.add_argument("--host", type=str, help="Alarm API host URL (overrides saved config)")
    parser.add_argument("--save-config", action="store_true", help="Save the provided host URL to the config file")

    subparsers = parser.add_subparsers(title="Commands", dest="command")

    # Create alarm
    create_parser = subparsers.add_parser("create", help="Create a new alarm")
    create_parser.add_argument("--name", required=False, help="Name of the alarm")
    create_parser.add_argument("--time", required=False, help="Alarm time in HH:MM:SS format")
    create_parser.add_argument("--repeat-type", choices=["daily", "weekly", "once"], help="Repeat type")
    create_parser.add_argument("--days", nargs="*", help="Days of the week for weekly repeat (e.g., monday tuesday)")
    create_parser.add_argument("--enabled", type=bool, default=True, help="Enable or disable the alarm")
    create_parser.add_argument("--snooze-duration", type=int, default=10, help="Snooze duration in minutes")
    create_parser.add_argument("--snooze-count", type=int, default=3, help="Maximum snooze count")
    create_parser.add_argument("--volume", type=int, default=80, help="Volume level (0-100)")
    create_parser.add_argument("--notes", type=str, default="", help="Notes for the alarm")
    create_parser.add_argument("--file", type=str, help="Path to the alarm sound file")
    create_parser.add_argument("--from-file", type=str, help="Path to JSON file containing alarm configuration")

    # Get alarms
    subparsers.add_parser("list", help="List all alarms")

    # Update alarm
    update_parser = subparsers.add_parser("update", help="Update an existing alarm")
    update_parser.add_argument("--id", type=int, required=True, help="ID of the alarm to update")
    update_parser.add_argument("--name", help="Updated name of the alarm")
    update_parser.add_argument("--time", help="Updated time in HH:MM:SS format")
    update_parser.add_argument("--repeat-type", choices=["daily", "weekly"], help="Updated repeat type")
    update_parser.add_argument("--days", nargs="*", help="Updated days of the week for weekly repeat")
    update_parser.add_argument("--enabled", type=bool, help="Enable or disable the alarm")
    update_parser.add_argument("--snooze-duration", type=int, help="Updated snooze duration in minutes")
    update_parser.add_argument("--snooze-count", type=int, help="Updated maximum snooze count")
    update_parser.add_argument("--volume", type=int, help="Updated volume level (0-100)")
    update_parser.add_argument("--notes", type=str, help="Updated notes for the alarm")
    update_parser.add_argument("--file", type=str, help="Updated path to the alarm sound file")

    # Delete alarm
    delete_parser = subparsers.add_parser("delete", help="Delete an alarm")
    delete_parser.add_argument("--id", type=int, required=True, help="ID of the alarm to delete")

    args = parser.parse_args()

    # Load saved config
    config = load_config()
    host = args.host or config.get("host", "http://localhost:8000")

    if args.save_config:
        config["host"] = host
        save_config(config)

    client = AlarmApiClient(host)

    try:
        if args.command == "create":
            if args.from_file:
                with open(args.from_file, "r") as f:
                    alarm_data = json.load(f)
                print(f"Creating alarm from file: {args.from_file}")
            else:
                repeat_rule = {"type": args.repeat_type}
                if args.repeat_type == "weekly":
                    repeat_rule["days_of_week"] = args.days or []
                alarm_data = {
                    "name": args.name,
                    "time": args.time,
                    "repeat_rule": repeat_rule,
                    "enabled": args.enabled,
                    "snooze": {"enabled": True, "duration": args.snooze_duration, "max_count": args.snooze_count},
                    "metadata": {"volume": args.volume, "notes": args.notes},
                }
                if args.file:
                    alarm_data["file_to_play"] = args.file
            alarm_id = client.create_alarm(alarm_data)
            print(f"Alarm created with ID: {alarm_id}")

        elif args.command == "list":
            alarms = client.get_alarms()
            if not alarms:
                print("No alarms found.")
            else:
                for alarm in alarms:
                    print(json.dumps(alarm, indent=4))

        elif args.command == "update":
            alarm_data = {}
            if args.name:
                alarm_data["name"] = args.name
            if args.time:
                alarm_data["time"] = args.time
            if args.repeat_type:
                alarm_data["repeat_rule"] = {"type": args.repeat_type}
                if args.repeat_type == "weekly" and args.days:
                    alarm_data["repeat_rule"]["days_of_week"] = args.days
            if args.enabled is not None:
                alarm_data["enabled"] = args.enabled
            if args.snooze_duration:
                alarm_data.setdefault("snooze", {})["duration"] = args.snooze_duration
            if args.snooze_count:
                alarm_data.setdefault("snooze", {})["max_count"] = args.snooze_count
            if args.volume:
                alarm_data.setdefault("metadata", {})["volume"] = args.volume
            if args.notes:
                alarm_data.setdefault("metadata", {})["notes"] = args.notes
            if args.file:
                alarm_data["file_to_play"] = args.file

            if client.update_alarm(args.id, alarm_data):
                print(f"Alarm ID {args.id} updated successfully.")

        elif args.command == "delete":
            if client.delete_alarm(args.id):
                print(f"Alarm ID {args.id} deleted successfully.")

        else:
            parser.print_help()

    except Exception as e:
        print(f"Error: {e}")


if __name__ == "__main__":
    main()