from typing import Dict
from typing import List

from fastapi import FastAPI
from sqlalchemy.ext.asyncio import AsyncSession
from sqlalchemy.ext.asyncio import create_async_engine
from sqlalchemy.future import select
from sqlmodel import SQLModel

from crowdtls.helpers import decode_der
from db import CertificateChain

DATABASE_URL = "postgresql+asyncpg://user:password@localhost:5432/database"
engine = create_async_engine(DATABASE_URL, echo=True)

app = FastAPI()


@app.on_event("startup")
async def startup_event():
    async with engine.begin() as connection:
        await connection.run_sync(SQLModel.metadata.create_all)


@app.post("/check")
async def check_fingerprints(fingerprints: Dict[str, List[int]]):
    fps = fingerprints.get("fps")
    async with AsyncSession(engine) as session:
        for fp in fps:
            stmt = select(CertificateChain).where(CertificateChain.fingerprint == fp)
            result = await session.execute(stmt)
            certificate = result.scalars().first()
            if not certificate:
                return {"send": True}
    return {"send": False}


@app.post("/new")
async def new_fingerprints(fingerprints: Dict[str, List[int]]):
    async with AsyncSession(engine) as session:
        for fp, _ in fingerprints.items():
            stmt = select(CertificateChain).where(CertificateChain.fingerprint == fp)
            result = await session.execute(stmt)
            certificate = result.scalars().first()
            if not certificate:
                new_certificate = decode_der(fp)
                session.add(new_certificate)
                pass
        await session.commit()
    return {"status": "OK"}