import logging
import queue

from apscheduler.schedulers.asyncio import AsyncIOScheduler
from decouple import config
from fastapi import FastAPI, Request
from fastapi.middleware.cors import CORSMiddleware
from fastapi.middleware.gzip import GZipMiddleware
from starlette import status
from starlette.responses import StreamingResponse, JSONResponse

from chalicelib.core import traces
from chalicelib.utils import helper
from chalicelib.utils import pg_client
from chalicelib.utils import events_queue
from routers import core, core_dynamic, ee, saml
from routers.crons import core_crons
from routers.crons import core_dynamic_crons
from routers.crons import ee_crons
from routers.subs import insights, metrics, v1_api_ee
from routers.subs import v1_api

app = FastAPI(root_path="/api", docs_url=config("docs_url", default=""), redoc_url=config("redoc_url", default=""))
app.add_middleware(GZipMiddleware, minimum_size=1000)


@app.middleware('http')
async def or_middleware(request: Request, call_next):
    from chalicelib.core import unlock
    if not unlock.is_valid():
        return JSONResponse(content={"errors": ["expired license"]}, status_code=status.HTTP_403_FORBIDDEN)

    if helper.TRACK_TIME:
        import time
        now = int(time.time() * 1000)
    response: StreamingResponse = await call_next(request)
    if helper.TRACK_TIME:
        now = int(time.time() * 1000) - now
        if now > 500:
            logging.info(f"Execution time: {now} ms")
    return response


origins = [
    "*",
]

app.add_middleware(
    CORSMiddleware,
    allow_origins=origins,
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)
app.include_router(core.public_app)
app.include_router(core.app)
app.include_router(core.app_apikey)
app.include_router(core_dynamic.public_app)
app.include_router(core_dynamic.app)
app.include_router(core_dynamic.app_apikey)
app.include_router(ee.public_app)
app.include_router(ee.app)
app.include_router(ee.app_apikey)
app.include_router(saml.public_app)
app.include_router(saml.app)
app.include_router(saml.app_apikey)
app.include_router(metrics.app)
app.include_router(insights.app)
app.include_router(v1_api.app_apikey)
app.include_router(v1_api_ee.app_apikey)

loglevel = config("LOGLEVEL", default=logging.INFO)
print(f">Loglevel set to: {loglevel}")
logging.basicConfig(level=loglevel)
ap_logger = logging.getLogger('apscheduler')
ap_logger.setLevel(loglevel)
app.schedule = AsyncIOScheduler()
app.queue_system = queue.Queue()


@app.on_event("startup")
async def startup():
    logging.info(">>>>> starting up <<<<<")
    await pg_client.init()
    await events_queue.init()
    app.schedule.start()

    for job in core_crons.cron_jobs + core_dynamic_crons.cron_jobs + traces.cron_jobs + ee_crons.ee_cron_jobs:
        app.schedule.add_job(id=job["func"].__name__, **job)

    ap_logger.info(">Scheduled jobs:")
    for job in app.schedule.get_jobs():
        ap_logger.info({"Name": str(job.id), "Run Frequency": str(job.trigger), "Next Run": str(job.next_run_time)})


@app.on_event("shutdown")
async def shutdown():
    logging.info(">>>>> shutting down <<<<<")
    app.schedule.shutdown(wait=True)
    await traces.process_traces_queue()
    await events_queue.terminate()
    await pg_client.terminate()


@app.get('/private/shutdown', tags=["private"])
async def stop_server():
    logging.info("Requested shutdown")
    await shutdown()
    import os, signal
    os.kill(1, signal.SIGTERM)