"""App entrypoint."""

import logging

from fastapi import FastAPI, Request
from fastapi.responses import HTMLResponse, RedirectResponse
from fastapi.staticfiles import StaticFiles
from fastapi.templating import Jinja2Templates
from starlette.exceptions import HTTPException
from starlette.middleware.sessions import SessionMiddleware

from members_lumbung_space.config import (
    APP_LOG_LEVEL,
    APP_SECRET_KEY,
    APP_THEME,
    STATIC_DIR,
    TEMPLATE_DIR,
)
from members_lumbung_space.exceptions import RequiresLoginException
from members_lumbung_space.keycloak import init_keycloak
from members_lumbung_space.nextcloud import init_resource_map
from members_lumbung_space.oidc import init_oidc
from members_lumbung_space.redis import Redis, init_redis
from members_lumbung_space.routes import (
    health,
    invite,
    oidc,
    register,
    resource,
    root,
)

log = logging.getLogger("uvicorn")
log.setLevel(APP_LOG_LEVEL)

app = FastAPI(docs_url=None, redoc_url=None)


@app.exception_handler(RequiresLoginException)
async def requires_login(request, exception):
    return RedirectResponse(request.url_for("login"))


@app.exception_handler(HTTPException)
async def http_exception_handler(request, exc):
    home = request.url_for("login")
    return HTMLResponse(f"<p>{exc.detail} (<a href='{home}'>home</a>)</p>")


@app.on_event("startup")
async def startup_event():
    await init_redis(app)
    log.info("Initialised redis connection")

    await init_resource_map(app)
    log.info("Initialised the resource map")


@app.on_event("shutdown")
async def shutdown_event():
    await app.state.redis.close()


app.add_middleware(SessionMiddleware, secret_key=APP_SECRET_KEY)

app.mount("/static", StaticFiles(directory=STATIC_DIR), name="static")

app.state.oidc = init_oidc()
log.info("Initialised OpenID Connect client (for Keycloak logins)")

app.state.keycloak = init_keycloak()
log.info("Initialised Keycloak admin client (for Keycloak REST API)")

app.state.templates = Jinja2Templates(directory=TEMPLATE_DIR)
app.state.theme = APP_THEME
app.state.log = log

app.include_router(invite.router)
app.include_router(oidc.router)
app.include_router(register.router)
app.include_router(root.router)
app.include_router(health.router)
app.include_router(resource.router)