import datetime
import json
import os
from typing import Optional

import requests
from fastapi import APIRouter, Depends
from fastapi_pagination import paginate, Params
from sqlalchemy.orm import Session
from app import schemas, get_db, crud
from app.core.airflow.af_util import get_job_path, get_airflow_api_info, call_airflow_api
from app.crud import create_airflow_job_submit
from app.schemas import AirflowTrigger
from utils import web_try, sxtimeit

router_af_job = APIRouter(
    prefix="/af/af_job",
    tags=["airflow_job-任务管理"],
)


@router_af_job.get("/")
@web_try()
@sxtimeit
def get_af_jobs(params: Params = Depends(), db: Session = Depends(get_db)):
    return paginate(crud.get_airflow_jobs(db), params)


@router_af_job.get("/{item_id}/last_parsed_time")
@web_try()
@sxtimeit
def get_af_jobs(item_id: int):
    uri_prefix, headers = get_airflow_api_info()
    url = f'{uri_prefix}/dags/dag_{item_id}'
    rets = requests.get(url, headers=headers).json()
    if 'last_parsed_time' in rets:
        last_parsed_time_str = rets['last_parsed_time']
        last_parsed_time = datetime.datetime.strptime(last_parsed_time_str, '%Y-%m-%dT%H:%M:%S.%f%z').timestamp()
    else:
        last_parsed_time = None
    return {"last_parsed_time": last_parsed_time}


@router_af_job.get("/getOnce/{item_id}")
@web_try()
@sxtimeit
def get_af_jobs_once(item_id: int, db: Session = Depends(get_db)):
    return crud.get_airflow_job_once(db, item_id)


@router_af_job.post("/")
@web_try()
@sxtimeit
def add_af_job(item: schemas.AirflowJobCreate, db: Session = Depends(get_db)):
    return crud.create_airflow_job(db, item)


@router_af_job.put("/{item_id}")
@web_try()
@sxtimeit
def update_af_job(item_id: int, update_item: schemas.AirflowJobUpdate, db: Session = Depends(get_db)):
    return crud.update_airflow_job(db=db, item_id=item_id, update_item=update_item)



@router_af_job.post("/submit")
@web_try()
@sxtimeit
def add_dag_submit(id: int, db: Session = Depends(get_db)):
    item = crud.get_airflow_job_once(db, id)
    create_airflow_job_submit(schemas.AirflowJob(**item.to_dict()))


@router_af_job.post("/{job_id}/run")
@web_try()
@sxtimeit
def trigger_af_job_run(job_id: int):
    return call_airflow_api(method='post', uri=f'dags/dag_{job_id}/dagRuns', args_dict={"data": json.dumps({})}).json()


@router_af_job.post("/{job_id}/adv_run")
@web_try()
@sxtimeit
def trigger_af_job_adv_run(job_id: int, parameters: Optional[AirflowTrigger]):
    return call_airflow_api(method='post', uri=f'dags/dag_{job_id}/dagRuns',
                            args_dict={"json": {"conf": parameters.parameters if parameters else {}}}).json()


@router_af_job.post("/000/data_transfer_run")
@web_try()
@sxtimeit
def trigger_af_data_transfer_job_run(source_tb: str, target_tb: str):
    rets = call_airflow_api(method='post', uri=f'dags/dag_0/dagRuns',
                            args_dict={"json": {"conf": {"input": source_tb, "output": target_tb}}}).json()
    return {"af_run_id": rets.get('dag_run_id', None),
            "dag_id": "dag_0"}


@router_af_job.post("/special_job/install_requirements")
@web_try()
@sxtimeit
def trigger_af_requirements_install_job_run(requirements_str: str, target_path: str):
    rets = call_airflow_api(method='post', uri=f'dags/dag_-1/dagRuns',
                            args_dict={"json": {"conf": {"requirements_str": requirements_str, "target_path": target_path}}}).json()
    return {"af_run_id": rets.get('dag_run_id', None),
            "dag_id": "dag_-1"}


@router_af_job.delete("/{item_id}")
@web_try()
@sxtimeit
def delete_af_job(item_id: int, db: Session = Depends(get_db)):
    uri_prefix, headers = get_airflow_api_info()
    uri = f'{uri_prefix}/dags/dag_{item_id}'
    requests.delete(uri, headers=headers)
    os.remove(get_job_path(job_id=item_id))
    crud.delete_airflow_job(db, item_id)


@router_af_job.patch("/{item_id}/pause/{pause}")
@web_try()
@sxtimeit
def pause_af_job(pause: bool, item_id: int):
    uri_prefix, headers = get_airflow_api_info()
    url = f'{uri_prefix}/dags/dag_{item_id}'
    return requests.patch(url, headers=headers, data=json.dumps({"is_paused": pause})).json()