import logging
import time
from contextlib import asynccontextmanager

import psycopg_pool
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 psycopg import AsyncConnection
from starlette.responses import StreamingResponse

from chalicelib.utils import helper
from chalicelib.utils import pg_client
from crons import core_crons, core_dynamic_crons
from routers import core, core_dynamic, additional_routes
from routers.subs import insights, metrics, v1_api, health

loglevel = config("LOGLEVEL", default=logging.WARNING)
print(f">Loglevel set to: {loglevel}")
logging.basicConfig(level=loglevel)
import orpy
from psycopg.rows import dict_row


class ORPYAsyncConnection(AsyncConnection):

    def __init__(self, *args, **kwargs):
        super().__init__(*args, row_factory=dict_row, **kwargs)



@asynccontextmanager
async def lifespan(app: FastAPI):
    # Startup
    logging.info(">>>>> starting up <<<<<")
    ap_logger = logging.getLogger('apscheduler')
    ap_logger.setLevel(loglevel)

    app.schedule = AsyncIOScheduler()
    await pg_client.init()
    app.schedule.start()

    for job in core_crons.cron_jobs + core_dynamic_crons.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)})


    database = {
        "host": config("pg_host", default="localhost"),
        "dbname": config("pg_dbname", default="orpy"),
        "user": config("pg_user", default="orpy"),
        "password": config("pg_password", default="orpy"),
        "port": config("pg_port", cast=int, default=5432),
        "application_name": config("APP_NAME", default="PY"),
    }

    database = psycopg_pool.AsyncConnectionPool(kwargs=database, connection_class=ORPYAsyncConnection)
    orpy.set(orpy.Application(
        database,
    ))

    # App listening
    yield

    # Shutdown
    await database.close()
    logging.info(">>>>> shutting down <<<<<")
    app.schedule.shutdown(wait=False)
    await pg_client.terminate()


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


@app.middleware('http')
async def or_middleware(request: Request, call_next):
    if helper.TRACK_TIME:
        now = time.time()
    try:
        response: StreamingResponse = await call_next(request)
    except:
        logging.error(f"{request.method}: {request.url.path} FAILED!")
        raise
    if response.status_code // 100 != 2:
        logging.warning(f"{request.method}:{request.url.path} {response.status_code}!")
    if helper.TRACK_TIME:
        now = time.time() - now
        if now > 2:
            now = round(now, 2)
            logging.warning(f"Execution time: {now} s for {request.method}: {request.url.path}")
    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(metrics.app)
app.include_router(insights.app)
app.include_router(v1_api.app_apikey)
app.include_router(health.public_app)
app.include_router(health.app)
app.include_router(health.app_apikey)

app.include_router(additional_routes.public_app)
app.include_router(additional_routes.app)
app.include_router(additional_routes.app_apikey)

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