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# Code generated by ndpgen. DO NOT EDIT.
#
# This file contains client wrappers for the Task host service.
# It is intended for use in Navidrome plugins built with extism-py.
#
# IMPORTANT: Due to a limitation in extism-py, you cannot import this file directly.
# The @extism.import_fn decorators are only detected when defined in the plugin's
# main __init__.py file. Copy the needed functions from this file into your plugin.

from dataclasses import dataclass
from typing import Any

import extism
import json
import base64


class HostFunctionError(Exception):
    """Raised when a host function returns an error."""
    pass


@extism.import_fn("extism:host/user", "task_createqueue")
def _task_createqueue(offset: int) -> int:
    """Raw host function - do not call directly."""
    ...


@extism.import_fn("extism:host/user", "task_enqueue")
def _task_enqueue(offset: int) -> int:
    """Raw host function - do not call directly."""
    ...


@extism.import_fn("extism:host/user", "task_get")
def _task_get(offset: int) -> int:
    """Raw host function - do not call directly."""
    ...


@extism.import_fn("extism:host/user", "task_cancel")
def _task_cancel(offset: int) -> int:
    """Raw host function - do not call directly."""
    ...


@extism.import_fn("extism:host/user", "task_clearqueue")
def _task_clearqueue(offset: int) -> int:
    """Raw host function - do not call directly."""
    ...


def task_create_queue(name: str, config: Any) -> None:
    """CreateQueue creates a named task queue with the given configuration.
Zero-value fields in config use sensible defaults.
If a queue with the same name already exists, returns an error.
On startup, this also recovers any stale "running" tasks from a previous crash.

    Args:
        name: str parameter.
        config: Any parameter.

    Raises:
        HostFunctionError: If the host function returns an error.
    """
    request = {
        "name": name,
        "config": config,
    }
    request_bytes = json.dumps(request).encode("utf-8")
    request_mem = extism.memory.alloc(request_bytes)
    response_offset = _task_createqueue(request_mem.offset)
    response_mem = extism.memory.find(response_offset)
    response = json.loads(extism.memory.string(response_mem))

    if response.get("error"):
        raise HostFunctionError(response["error"])



def task_enqueue(queue_name: str, payload: bytes) -> str:
    """Enqueue adds a task to the named queue. Returns the task ID.
payload is opaque bytes passed back to the plugin on execution.

    Args:
        queue_name: str parameter.
        payload: bytes parameter.

    Returns:
        str: The result value.

    Raises:
        HostFunctionError: If the host function returns an error.
    """
    request = {
        "queueName": queue_name,
        "payload": base64.b64encode(payload).decode("ascii"),
    }
    request_bytes = json.dumps(request).encode("utf-8")
    request_mem = extism.memory.alloc(request_bytes)
    response_offset = _task_enqueue(request_mem.offset)
    response_mem = extism.memory.find(response_offset)
    response = json.loads(extism.memory.string(response_mem))

    if response.get("error"):
        raise HostFunctionError(response["error"])

    return response.get("result", "")


def task_get(task_id: str) -> Any:
    """Get returns the current state of a task including its status,
message, and attempt count.

    Args:
        task_id: str parameter.

    Returns:
        Any: The result value.

    Raises:
        HostFunctionError: If the host function returns an error.
    """
    request = {
        "taskId": task_id,
    }
    request_bytes = json.dumps(request).encode("utf-8")
    request_mem = extism.memory.alloc(request_bytes)
    response_offset = _task_get(request_mem.offset)
    response_mem = extism.memory.find(response_offset)
    response = json.loads(extism.memory.string(response_mem))

    if response.get("error"):
        raise HostFunctionError(response["error"])

    return response.get("result", None)


def task_cancel(task_id: str) -> None:
    """Cancel cancels a pending task. Returns error if already
running, completed, or failed.

    Args:
        task_id: str parameter.

    Raises:
        HostFunctionError: If the host function returns an error.
    """
    request = {
        "taskId": task_id,
    }
    request_bytes = json.dumps(request).encode("utf-8")
    request_mem = extism.memory.alloc(request_bytes)
    response_offset = _task_cancel(request_mem.offset)
    response_mem = extism.memory.find(response_offset)
    response = json.loads(extism.memory.string(response_mem))

    if response.get("error"):
        raise HostFunctionError(response["error"])



def task_clear_queue(queue_name: str) -> int:
    """ClearQueue removes all pending tasks from the named queue.
Running tasks are not affected. Returns the number of tasks removed.

    Args:
        queue_name: str parameter.

    Returns:
        int: The result value.

    Raises:
        HostFunctionError: If the host function returns an error.
    """
    request = {
        "queueName": queue_name,
    }
    request_bytes = json.dumps(request).encode("utf-8")
    request_mem = extism.memory.alloc(request_bytes)
    response_offset = _task_clearqueue(request_mem.offset)
    response_mem = extism.memory.find(response_offset)
    response = json.loads(extism.memory.string(response_mem))

    if response.get("error"):
        raise HostFunctionError(response["error"])

    return response.get("result", 0)