import boto3
from datetime import datetime, timedelta
import json
def one_time_schedule(
    lambda_arn: str,
    schedule_role_arn: str,
    minutes: int,
    slack_url: str,
    date: str,
    count: int,
) -> str:
    client = boto3.client('scheduler')
    schedule_time = datetime.now() + timedelta(minutes = minutes)
    schedule_expression = f"at({schedule_time.strftime('%Y-%m-%dT%H:%M:%S')})"

    schedule_name = f"menu-trigger-{schedule_time.strftime('%Y%m%d%H%M%S')}"
    target = {
        'Arn': lambda_arn,
        'RoleArn': schedule_role_arn,
        'Input': json.dumps({
            'slack_url': slack_url,
            'date': date,
            'count': count
        }),
        'RetryPolicy': {'MaximumRetryAttempts': 0}
    }
    rule_response = client.create_schedule(
        Name = schedule_name,
        ScheduleExpression = schedule_expression,
        ScheduleExpressionTimezone = 'Asia/Seoul',
        State = 'ENABLED',
        FlexibleTimeWindow = {'Mode': 'OFF'},
        Target = target
    )
    rule_response = client.update_schedule(
        Name = schedule_name,
        ScheduleExpression = schedule_expression,
        ScheduleExpressionTimezone = 'Asia/Seoul',
        State = 'ENABLED',
        FlexibleTimeWindow = {'Mode': 'OFF'},
        # 이 값 수정 위함
        ActionAfterCompletion = 'DELETE',
        Target = target
    )
    return rule_response['ScheduleArn']