"""
数据抓取模块。
"""
import asyncio
import logging
from typing import Optional, Union

from sqlalchemy import select, desc

import dock
from dock.dcm.dcm_scrape_operation import get_operation_request, after_operation_request
from dock.dcm.dcm_scrape_task import get_task_request, after_task_request
from dock.dcm.dcm_scrape_attachment import get_attachment_request, after_attachment_request
from dock.dcm.dcm_scrape_process_info import get_process_info_request, after_process_info_request
from dock.dcm.dcm_scrape_form_data import get_form_data_request, after_form_data_request
from dock.dcm.dcm_scrape_more_info import get_more_info_request, after_more_info_request
from dock.dcm.dcm_scrape_extend_info import get_extend_info_request, after_extend_info_request
from models.dcm_task import DcmTask
from paste.core.logging import echo_log
from paste.web import requests


async def fetch_dcm_task(fetch_size: int = 60, task_id: Optional[Union[str, int]] = None):
    """
    抓取待办数据及其明细数据。

    :param fetch_size: 读取多少任务进行明细抓取
    :param task_id: 待办任务 ID 可选
    """
    echo_log(f"开始抓取待办数据...")
    task_request = await get_task_request(num_per_page=fetch_size)
    request_queue = asyncio.Queue()
    await request_queue.put(task_request)
    await requests.async_concurrency(request_queue, retry=dock.MAX_RETRY_COUNT, after_request=after_task_request)
    echo_log(f"待办数据抓取完成...")

    # 读取任务数据，以便能对最新数据抓取详细数据
    query = select(
        DcmTask.id, DcmTask.rec_id, DcmTask.act_id, DcmTask.task_num, DcmTask.other_task_num,
    ).order_by(
        desc(DcmTask.act_id)
    )
    if task_id:
        if isinstance(task_id, list):
            query = query.where(DcmTask.id.in_(task_id))
            echo_log(f"开始抓取待办列表：{task_id} 的详细数据...")
        else:
            query = query.where(DcmTask.id == task_id)
            echo_log(f"开始抓取待办：{task_id} 的详细数据...")
    else:
        echo_log(f"开始抓取前 {fetch_size} 条待办的详细数据...")
        query = query.limit(fetch_size)
    task_df = await DcmTask.query_as_df(query)

    # 构建请求队列
    operation_queue = asyncio.Queue()
    attachment_queue = asyncio.Queue()
    process_info_queue = asyncio.Queue()
    form_data_queue = asyncio.Queue()
    more_info_queue = asyncio.Queue()
    extend_info_queue = asyncio.Queue()
    # 向队列中填充请求对象
    echo_log(f"正在准备请求队列...")
    for _h, _row in task_df.iterrows():
        dcm_task_id = _row.get(DcmTask.id.key)
        rec_id = int(_row.get(DcmTask.rec_id.key))
        act_id = int(_row.get(DcmTask.act_id.key))
        task_num = f"{_row.get(DcmTask.task_num.key)}"
        other_task_num = f"{_row.get(DcmTask.other_task_num.key)}"

        _operation_req = await get_operation_request(rec_id, act_id, task_num, other_task_num)
        echo_log(_operation_req.url)
        setattr(_operation_req, "dcm_task_id", dcm_task_id)
        setattr(_operation_req, "rec_id", rec_id)
        await operation_queue.put(_operation_req)

        _attachment_req = await get_attachment_request(rec_id)
        echo_log(_attachment_req.url)
        setattr(_attachment_req, "dcm_task_id", dcm_task_id)
        setattr(_attachment_req, "rec_id", rec_id)
        await attachment_queue.put(_attachment_req)

        _process_info_req = await get_process_info_request(rec_id)
        echo_log(_process_info_req.url)
        setattr(_process_info_req, "dcm_task_id", dcm_task_id)
        setattr(_process_info_req, "rec_id", rec_id)
        await process_info_queue.put(_process_info_req)

        _form_data_req = await get_form_data_request(rec_id, act_id)
        echo_log(_form_data_req.url)
        setattr(_form_data_req, "dcm_task_id", dcm_task_id)
        setattr(_form_data_req, "rec_id", rec_id)
        await form_data_queue.put(_form_data_req)

        _more_info_req = await get_more_info_request(rec_id)
        echo_log(_more_info_req.url)
        setattr(_more_info_req, "dcm_task_id", dcm_task_id)
        setattr(_more_info_req, "rec_id", rec_id)
        await more_info_queue.put(_more_info_req)

        _extend_info_req = await get_extend_info_request(rec_id)
        echo_log(_extend_info_req.url)
        setattr(_extend_info_req, "dcm_task_id", dcm_task_id)
        setattr(_extend_info_req, "rec_id", rec_id)
        await extend_info_queue.put(_extend_info_req)

    _count = (operation_queue.qsize()+attachment_queue.qsize()+process_info_queue.qsize()
              +form_data_queue.qsize()+more_info_queue.qsize()+extend_info_queue.qsize())
    echo_log(f"可用操作请求：{operation_queue.qsize()}；附件请求：{attachment_queue.qsize()}；处理过程请求：{process_info_queue.qsize()}；")
    echo_log(f"详细数据请求：{form_data_queue.qsize()}；更多信息请求：{more_info_queue.qsize()}；扩展信息请求：{extend_info_queue.qsize()}；")
    echo_log(f"共计：{_count} 个.")
    echo_log(f"抓取待办详细数据...")

    try:
        tasks = [
            requests.async_concurrency(
                operation_queue, con_count=dock.CONCURRENCY_COUNT, retry=dock.MAX_RETRY_COUNT,
                after_request=after_operation_request
            ),
            requests.async_concurrency(
                attachment_queue, con_count=dock.CONCURRENCY_COUNT, retry=dock.MAX_RETRY_COUNT,
                after_request=after_attachment_request
            ),
            requests.async_concurrency(
                process_info_queue, con_count=dock.CONCURRENCY_COUNT, retry=dock.MAX_RETRY_COUNT,
                after_request=after_process_info_request
            ),
            requests.async_concurrency(
                form_data_queue, con_count=dock.CONCURRENCY_COUNT, retry=dock.MAX_RETRY_COUNT,
                after_request=after_form_data_request
            ),
            requests.async_concurrency(
                more_info_queue, con_count=dock.CONCURRENCY_COUNT, retry=dock.MAX_RETRY_COUNT,
                after_request=after_more_info_request
            ),
            requests.async_concurrency(
                extend_info_queue, con_count=dock.CONCURRENCY_COUNT, retry=dock.MAX_RETRY_COUNT,
                after_request=after_extend_info_request
            )
        ]
        await asyncio.gather(*tasks)
    except Exception as e:
        echo_log(f"抓取任务异常: {e}", level=logging.ERROR, is_log_exc=True)
        raise


async def fetch_single_dcm_task(dcm_task: DcmTask):
    """
    基于任务抓取指定某条待办数据及其明细数据。

    :param dcm_task: 任务号
    """
    await fetch_dcm_task(task_id=dcm_task.id)


if __name__ == "__main__":
    from paste.core import aio_pool

    _runner = aio_pool.get_aio_runner()
    _runner(fetch_dcm_task(30))