import logging
from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from fastapi.staticfiles import StaticFiles
from api.routes import generate, health, chat, auth, documents, tenant, leads
from core.rate_limiter import RateLimitMiddleware
import threading
from fastapi.responses import FileResponse

logger = logging.getLogger("axiom.main")

app = FastAPI(title="Axiom RAG System", version="3.0.0")

app.add_middleware(
    CORSMiddleware,
    allow_origins=["*"],
    allow_methods=["*"],
    allow_headers=["*"],
)

# Rate-limit auth endpoints: 20 req/min per IP
app.add_middleware(
    RateLimitMiddleware,
    rate_limited_paths=["/auth/"],
    max_requests=20,
    window_seconds=60,
)

# Rate-limit heavy API endpoints (Generation, Document Upload): 30 req/min per IP
app.add_middleware(
    RateLimitMiddleware,
    rate_limited_paths=["/generate/", "/documents/upload", "/chat/sessions"],
    max_requests=30,
    window_seconds=60,
)

app.include_router(health.router,      tags=["Health"])
app.include_router(auth.router,        tags=["Auth"])
#app.include_router(google_auth.router, tags=["Auth"])
app.include_router(generate.router,    tags=["Generate"])
app.include_router(chat.router,        prefix="/chat", tags=["Chat"])
app.include_router(documents.router,   tags=["Documents"])
app.include_router(tenant.router,      tags=["Tenant"])
app.include_router(leads.router,       tags=["Leads"])

@app.on_event("startup")
async def startup_event():
    def load_pipeline():
        try:
            from api.routes.generate import get_pipeline
            get_pipeline()

        except Exception as e:
            logger.error(f"Pipeline load error: {e}")
    threading.Thread(target=load_pipeline, daemon=True).start()
    logger.info("Pipeline loading in background...")

# Add these explicit UI routes:
@app.get("/login", tags=["UI"])
async def serve_login():
    return FileResponse("frontend/login.html")

@app.get("/app", tags=["UI"])
async def serve_app():
    return FileResponse("frontend/app.html")

@app.get("/reset", tags=["UI"])
async def serve_reset():
    return FileResponse("frontend/reset.html")

@app.get("/profile", tags=["UI"])
async def serve_profile():
    return FileResponse("frontend/profile.html")

@app.get("/admin", tags=["UI"])
async def serve_admin():
    return FileResponse("frontend/admin.html")
app.mount("/", StaticFiles(directory="frontend", html=True), name="frontend")