import os
os.environ['EXCEPTIONGROUP_NO_PATCH']='1'
import os
import logging
import time
import sys
import uuid
from dotenv import load_dotenv
from logging.handlers import RotatingFileHandler
from fastapi import FastAPI, Request
from fastapi.middleware.cors import CORSMiddleware
from starlette.middleware.sessions import SessionMiddleware
from fastapi.staticfiles import StaticFiles

from tplbot.initializer import initialize
from tplbot.routes import router
from tplbot.metrics import router as metrics_router
from tplbot.admin.views import router as admin_router
# ── 1) Load env & configure logging ───────────────────────────────────────
load_dotenv()
# ── 1) Configure logging to stdout only ─────────────────────────────────
logging.basicConfig(
    level=logging.INFO,
    format="%(asctime)s %(levelname)s %(name)s [%(request_id)s] %(message)s",
    stream=sys.stdout,
    force=True
)

logger = logging.getLogger()  # root logger

class RequestIdFilter(logging.Filter):
    def filter(self, record):
        if not hasattr(record, "request_id"):
            record.request_id = "N/A"
        return True

logger.addFilter(RequestIdFilter())
# ── End stdout-only logging setup ────────────────────────────────────────
# ── 2) Create app & add middleware ────────────────────────────────────────
app = FastAPI()
app.include_router(metrics_router, prefix="")

app.include_router(admin_router)
#   2a) CORS, sessions, static as before
app.add_middleware(
    CORSMiddleware,
    allow_origin_regex=".*",        # ← works with credentials
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)

app.add_middleware(
    SessionMiddleware,
    secret_key = os.getenv("SESSION_SECRET", "change-me-change-me"),  # ≥16 bytes
    same_site  = "none",   # third-party cookie allowed in HF iframe
    https_only = True,     # sets the Secure flag
    # max_age = 60*60*24*14  # (optional) 14-day default
)
app.mount("/static", StaticFiles(directory="static"), name="static")

#   2b) Logging middleware
@app.middleware("http")
async def log_requests(request: Request, call_next):
    rid = uuid.uuid4().hex[:8]
    request.state.request_id = rid

    logger.info(f"→ {request.method} {request.url.path}", extra={"request_id": rid})

    start = time.perf_counter()
    response = await call_next(request)
    elapsed_ms = (time.perf_counter() - start) * 1000

    logger.info(
        f"← {request.method} {request.url.path} {response.status_code} in {elapsed_ms:.1f}ms",
        extra={"request_id": rid}
    )
    return response

# ── 3) Initialize and mount routes ────────────────────────────────────────
initialize()
app.include_router(router)

# ── 4) UVicorn entrypoint ─────────────────────────────────────────────────
if __name__ == "__main__":
    import uvicorn
    uvicorn.run("app:app", host="0.0.0.0", port=int(os.environ.get("PORT", 5000)), reload=True)