from fastapi import FastAPI, Request
from fastapi.staticfiles import StaticFiles
from fastapi.templating import Jinja2Templates
from fastapi.middleware.cors import CORSMiddleware
from pathlib import Path

from app.core.config import settings
from app.api.v1.analyze import router as api_router

BASE_DIR = Path(__file__).resolve().parent

app = FastAPI(
    title=settings.APP_NAME,
    version=settings.APP_VERSION,
    description="On-demand crypto market intelligence and decision terminal powered by TypeSafe Jev System One."
)

# CORS Configuration
allowed_origins_raw = [o.strip() for o in settings.ALLOWED_ORIGINS.split(",") if o.strip()]
allow_credentials = "*" not in allowed_origins_raw

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

# Mount Static Files and Templates
static_dir = BASE_DIR / "static"
templates_dir = BASE_DIR / "templates"

static_dir.mkdir(parents=True, exist_ok=True)
templates_dir.mkdir(parents=True, exist_ok=True)

app.mount("/static", StaticFiles(directory=str(static_dir)), name="static")
templates = Jinja2Templates(directory=str(templates_dir))

# Include API Router
app.include_router(api_router, prefix="/api")


@app.get("/", summary="Main Terminal UI")
async def root(request: Request):
    return templates.TemplateResponse(
        request=request,
        name="index.html",
        context={
            "app_name": settings.APP_NAME,
            "has_typesafe_key": bool(settings.TYPESAFE_API_KEY),
            "has_twitter_key": bool(settings.TWITTER_API_KEY)
        }
    )


@app.get("/health", summary="Health check")
async def health():
    return {
        "status": "healthy",
        "app": settings.APP_NAME,
        "version": settings.APP_VERSION,
        "typesafe_configured": bool(settings.TYPESAFE_API_KEY),
        "twitter_configured": bool(settings.TWITTER_API_KEY)
    }