from time import sleep
from typing import Any

import demistomock as demisto  # noqa: F401
from CommonServerPython import *  # noqa: F401

from CommonServerUserPython import *

POSSIBLE_STATES = ["New", "InProgress", "Completed", "Waiting", "Error", "Skipped", "Blocked"]

""" STANDALONE FUNCTION """


def get_incident_tasks_by_state(incident_id: int, task_states: Optional[list] = None) -> list:
    """

    Args:
        incident_id: Incident id to pull its tasks.
        task_states: States to get. None to get all tasks with all tasks.

    Returns:
        Tasks with given states related to given incident.
    """
    args: dict[str, Any] = {"inc_id": incident_id}
    # leave states empty to get all tasks
    if task_states:
        args["states"] = ",".join(task_states)
    raw_response = demisto.executeCommand("GetIncidentTasksByState", args=args)
    if is_error(raw_response):
        raise Exception(f"Failed to execute script: GetIncidentTasksByState. Error: {get_error(raw_response)}")
    return raw_response[0].get("Contents") if raw_response[0].get("Contents") else []


def complete_task_by_id(task_id, task_parent_id, incident_id, complete_option=None) -> str:
    """

    Args:
        task_id: task's id to complete
        task_parent_id: parent playbook task id to complete
        incident_id: relevant incident
        complete_option: path option to choose

    Returns:
        taskComplete automation result
    """
    args = assign_params(id=task_id, parentPlaybookID=task_parent_id, incidentId=incident_id, input=complete_option)

    raw_response = demisto.executeCommand("taskComplete", args=args)
    if is_error(raw_response):
        raise Exception(f"Failed to execute script: taskComplete. Error: {get_error(raw_response)}")
    return raw_response[0].get("Contents") if raw_response[0].get("Contents") else ""


""" COMMAND FUNCTION """


def wait_and_complete_task_command(args: dict[str, Any]) -> CommandResults:
    """

    Args:
        args: Script arguments

    Returns:
        CompletedTask - Tasks that was completed by script
        FoundTasks - Tasks that was found by script, and already completed, not by this script

    """
    task_states = argToList(args.get("task_states"))
    if not all(state in POSSIBLE_STATES for state in task_states):
        raise Exception(f"task_states are bad. Possible values: {POSSIBLE_STATES}")

    complete_option = args.get("complete_option")
    incident_id = args.get("incident_id")
    if not incident_id:
        incident = demisto.incidents()[0]
        incident_id = incident.get("id")
    task_name = args.get("task_name")
    complete_task = argToBoolean(args.get("complete_task", "false"))
    max_timeout = arg_to_number(args.get("max_timeout", 60))
    interval_between_tries = arg_to_number(args.get("interval_between_tries", 3))

    completed_tasks = []
    found_tasks = []

    start_time = time.time()

    while True:
        tasks_by_states = get_incident_tasks_by_state(incident_id, task_states)
        requested_task = None

        # find task to complete if was given task name
        if task_name:
            for task in tasks_by_states:
                if task["name"] == task_name:
                    requested_task = task
                    break

        if requested_task and complete_task:
            # complete the requested task
            complete_task_by_id(requested_task.get("id"), requested_task.get("parentPlaybookID"), incident_id, complete_option)
            completed_tasks.append(requested_task.get("name"))
            break

        if requested_task:
            # just validate that task was found and not complete it
            found_tasks.append(requested_task.get("name"))
            break

        if not task_name and tasks_by_states and complete_task:
            # complete all tasks, which state is task_states
            for task in tasks_by_states:
                complete_res = complete_task_by_id(task.get("id"), task.get("parentPlaybookID"), incident_id, complete_option)
                if "Task is completed already" in complete_res:
                    found_tasks.append(task.get("name"))
                else:
                    completed_tasks.append(task.get("name"))

            break

        if not task_name and tasks_by_states:
            # just validate that task was found and not complete it
            found_tasks.extend(task.get("name") for task in tasks_by_states)
            break

        if time.time() - start_time > max_timeout:  # type: ignore[operator]
            break

        sleep(float(interval_between_tries))  # type: ignore[arg-type]

    if not completed_tasks and not found_tasks:
        if task_name and task_states:
            raise Exception(f'The task "{task_name}" did not reach the {" or ".join(task_states)} state.')
        elif task_name:
            raise Exception(f'The task "{task_name}" was not found by script.')
        elif task_states:
            raise Exception(f'None of the tasks reached the {" or ".join(task_states)} state.')
        else:
            raise Exception("No tasks were found.")

    outputs = {"CompletedTask": completed_tasks, "FoundTask": found_tasks}

    human_readable = tableToMarkdown(name="", t=outputs, headerTransform=pascalToSpace)

    return CommandResults(
        outputs_prefix="WaitAndCompleteTask", outputs_key_field="", outputs=outputs, readable_output=human_readable
    )


""" MAIN FUNCTION """


def main():  # pragma: no cover
    try:
        return_results(wait_and_complete_task_command(demisto.args()))
    except Exception as ex:
        return_error(f"Failed to execute WaitAndCompleteTask. Error: {ex!s}")


""" ENTRY POINT """

if __name__ in ("__main__", "__builtin__", "builtins"):
    main()