"""
FastAPI application entry point for Lowkey Backtest UI.

Run with: uvicorn api.main:app --reload
"""
from contextlib import asynccontextmanager

from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware

from api.models.database import init_db
from api.routers import backtest, data, strategies


@asynccontextmanager
async def lifespan(app: FastAPI):
    """Initialize database on startup."""
    init_db()
    yield


app = FastAPI(
    title="Lowkey Backtest API",
    description="API for running and analyzing trading strategy backtests",
    version="0.1.0",
    lifespan=lifespan,
)

# CORS configuration for local development
app.add_middleware(
    CORSMiddleware,
    allow_origins=["http://localhost:5173", "http://127.0.0.1:5173"],
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)

# Register routers
app.include_router(strategies.router, prefix="/api", tags=["strategies"])
app.include_router(data.router, prefix="/api", tags=["data"])
app.include_router(backtest.router, prefix="/api", tags=["backtest"])


@app.get("/api/health")
async def health_check():
    """Health check endpoint."""
    return {"status": "ok", "service": "lowkey-backtest-api"}