from typing import List, Dict, Optional
from prefect import flow, task
from dspygen.pyautomator.flows.flow_manager import FlowManager
from prefect.deployments import Deployment
from prefect.server.schemas.schedules import IntervalSchedule
from datetime import timedelta

class PrefectApp:
    def __init__(self):
        self.flow_manager = FlowManager()

    @task
    def create_flow(self, name: str, description: str, tasks: List[Dict]) -> str:
        return self.flow_manager.create_flow(name, description, tasks)

    @task
    def read_flow(self, name: str) -> Optional[Dict]:
        return self.flow_manager.read_flow(name)
    @task
    def update_flow(self, name: str, description: str = None, tasks: List[Dict] = None) -> str:
        return self.flow_manager.update_flow(name, description, tasks)

    @task
    def delete_flow(self, name: str) -> str:
        return self.flow_manager.delete_flow(name)

    @task
    def list_flows(self) -> List[str]:
        return self.flow_manager.list_flows()

    @task
    def create_deployment(self, flow_name: str, deployment_name: str, schedule: Optional[IntervalSchedule] = None) -> str:
        flow_def = self.read_flow(flow_name)
        if not flow_def:
            return f"Flow '{flow_name}' not found."

        @flow(name=flow_name)
        def dynamic_flow():
            for task in flow_def['tasks']:
                # Here you would implement the logic to execute each task
                print(f"Executing task: {task['name']}")

        deployment = Deployment.build_from_flow(
            flow=dynamic_flow,
            name=deployment_name,
            schedule=schedule
        )
        deployment.apply()
        return f"Deployment '{deployment_name}' created for flow '{flow_name}'."

    @task
    def run_flow(self, flow_name: str) -> str:
        flow_def = self.read_flow(flow_name)
        if not flow_def:
            return f"Flow '{flow_name}' not found."

        @flow(name=flow_name)
        def dynamic_flow():
            for task in flow_def['tasks']:
                # Here you would implement the logic to execute each task
                print(f"Executing task: {task['name']}")

        dynamic_flow()
        return f"Flow '{flow_name}' executed successfully."

@flow
def prefect_app_operations():
    app = PrefectApp()

    # Example usage
    create_result = app.create_flow(
        "example_flow",
        "An example flow",
        [{"name": "task1", "description": "First task"}, {"name": "task2", "description": "Second task"}]
    )
    print(create_result)

    read_result = app.read_flow("example_flow")
    print("Read result:", read_result)

    update_result = app.update_flow(
        "example_flow",
        description="Updated example flow",
        tasks=[{"name": "task1", "description": "Updated first task"}]
    )
    print(update_result)

    list_result = app.list_flows()
    print("Available flows:", list_result)

    # Create a deployment with a schedule
    schedule = IntervalSchedule(interval=timedelta(hours=1))
    deployment_result = app.create_deployment("example_flow", "hourly_deployment", schedule)
    print(deployment_result)

    # Run the flow
    run_result = app.run_flow("example_flow")
    print(run_result)

    delete_result = app.delete_flow("example_flow")
    print(delete_result)

if __name__ == "__main__":
    prefect_app_operations()
