"""Application Handlers Layer.

Requests are redirected to handlers, which are responsible for getting
information from the URL and passing it down to the logic layer. The way
each layer talks to each other is through Response objects which defines the
type status of the data and the data itself.
Please note: the Orchard uses the term handlers over views as convention
for clarity
See:
    oto.response for more details.
"""

from typing import List, Optional

from fastapi import APIRouter, HTTPException
from fastapi.responses import JSONResponse

from dataexport.conf import config
from dataexport.dtos import Job
from dataexport.dtos import JobQuery
from dataexport.logic import create_job
from dataexport.logic import get_all_jobs

api_router = APIRouter()


# DATA EXPORT CONTROLLERS


@api_router.get(config.HEALTH_CHECK, status_code=200)
def health_check() -> JSONResponse:
    return JSONResponse(content={"status": "ok"})


@api_router.get("/test/{name}", status_code=200)
def test_endpoint(name: str, num: Optional[int] = None) -> JSONResponse:
    return JSONResponse(content={"hello": name, "num": num})


@api_router.get("/job", status_code=200, response_model=List[Job])
def all_jobs():
    """Fetch all jobs."""
    jobs = get_all_jobs()
    return jobs


@api_router.post("/job", status_code=202, response_model=Job)
async def new_job(query: JobQuery):
    """Create a new job."""
    try:
        job: Job = await create_job(query)
    except ValueError as err:
        raise HTTPException(status_code=422, detail=str(err))
    if not job or not job.query_string:
        raise HTTPException(status_code=422, detail="Empty query")
    return job