import asyncio
from pathlib import Path

from fastapi import FastAPI, Request
from fastapi.responses import HTMLResponse
from fastapi.staticfiles import StaticFiles
from fastapi.templating import Jinja2Templates

from fetch_data import refresh_data

app = FastAPI(title="OpenRouter Provider Dashboard")

# Get the directory where this file is located
BASE_DIR = Path(__file__).parent

# Set up templates directory
templates = Jinja2Templates(directory=str(BASE_DIR / "templates"))

# Data directory - create if missing so refresh can populate it
data_dir = BASE_DIR / "data"
data_dir.mkdir(exist_ok=True)
app.mount("/data", StaticFiles(directory=str(data_dir)), name="data")


@app.get("/", response_class=HTMLResponse)
async def dashboard(request: Request):
    """Serve the main dashboard page"""
    return templates.TemplateResponse("dashboard.html", {"request": request})


@app.post("/api/refresh")
async def api_refresh():
    """
    Refresh data from OpenRouter provider pages.
    Fetches chart data from all configured providers and saves to data/.
    """
    loop = asyncio.get_event_loop()
    data = await loop.run_in_executor(None, refresh_data, data_dir)
    return {
        "status": "ok",
        "fetched_at": data["fetched_at"],
        "summary": data["summary"],
    }


@app.get("/health")
async def health():
    """Health check endpoint"""
    return {"status": "ok"}

if __name__ == "__main__":
    import uvicorn
    uvicorn.run(app, host="0.0.0.0", port=7860)