import os

from fastapi import FastAPI, Request
from fastapi.middleware.cors import CORSMiddleware
from fastapi.responses import (
    RedirectResponse,
)
from infoserver.dependencies import Dependencies
from infoserver.router_login import router_login
from infoserver.router_pdf_preso import router_pdf
from infoserver.router_projects import router_projects
from infoserver.router_static import router_static
from infoserver.router_template import router_template
from jwt.exceptions import PyJWTError
from starlette.middleware.sessions import SessionMiddleware

# Set your paths here
DB_PATH = '~/code/git.ourworld.tf/freeflowuniverse/heroweb/authdb_example'
TEMPLATES_DIR = '~/code/git.ourworld.tf/freeflowuniverse/heroweb/poc/out'
STATIC_DIR = '~/code/git.ourworld.tf/freeflowuniverse/heroweb/poc/static'
HEROWEB_DIR = '~/code/git.ourworld.tf/tfgrid/info_tfgrid/heroweb'
COLLECTIONS_DIR = '~/hero/var/collections'

DB_PATH = os.path.abspath(os.path.expanduser(DB_PATH))
TEMPLATES_DIR = os.path.abspath(os.path.expanduser(TEMPLATES_DIR))
STATIC_DIR = os.path.abspath(os.path.expanduser(STATIC_DIR))
HEROWEB_DIR = os.path.abspath(os.path.expanduser(HEROWEB_DIR))
COLLECTIONS_DIR = os.path.abspath(os.path.expanduser(COLLECTIONS_DIR))

SERVERHOST = 'http://localhost:8000'

if not os.path.exists(DB_PATH):
    raise FileNotFoundError(f'Database path does not exist: {DB_PATH}')
if not os.path.exists(TEMPLATES_DIR):
    raise FileNotFoundError(
        f'Templates directory does not exist: {TEMPLATES_DIR}'
    )
if not os.path.exists(STATIC_DIR):
    raise FileNotFoundError(f'Static directory does not exist: {STATIC_DIR}')

app = FastAPI()

# Add session middleware for cookie management
jwt_secret_key = os.getenv('JWT_SECRET_KEY')
if not jwt_secret_key:
    raise EnvironmentError('JWT_SECRET_KEY environment variable is not set')
app.add_middleware(SessionMiddleware, secret_key=jwt_secret_key)

# Include your routers here
app.include_router(router_login)
app.include_router(router_pdf)
app.include_router(router_static)
app.include_router(router_template)
app.include_router(router_projects)

deps = Dependencies(
    DB_PATH, TEMPLATES_DIR, STATIC_DIR, HEROWEB_DIR, COLLECTIONS_DIR, SERVERHOST
)
app.deps = deps


app.add_middleware(
    CORSMiddleware,
    allow_origins=['*'],  # Allows all origins
    allow_credentials=True,
    allow_methods=['*'],  # Allows all methods
    allow_headers=['*'],  # Allows all headers
)


@app.middleware('http')
async def check_authentication(
    request: Request,
    call_next,
):
    if request.url.path in ['/signup', '/loginsubmit', '/register']:
        return await call_next(request)

    token = request.cookies.get('access_token')
    if not token:
        return RedirectResponse(url='/signup')

    jwt_handler = request.app.deps.jwt_handler
    try:
        email = jwt_handler.verify_access_token(token)
    except PyJWTError as e:
        print(e)
        return RedirectResponse(url='/signup')

    request.state.email = email
    # print(f'Authenticated: {email}')

    return await call_next(request)


if __name__ == '__main__':
    import uvicorn

    uvicorn.run(app, host='0.0.0.0', port=8000)