"""Request handlers. `request` is a dict of {path, query, headers}."""

from app import auth
from app.store import Store

STORE = Store()


def _current_user(request: dict) -> str | None:
    token = request.get("headers", {}).get("Authorization", "").removeprefix("Bearer ")
    if not token:
        return None
    return auth.user_for_token(token)


def list_notes(request: dict) -> dict:
    user = _current_user(request)
    if user is None:
        return {"status": 401, "body": "unauthenticated"}
    return {"status": 200, "body": STORE.notes_for(user)}


def get_note(request: dict) -> dict:
    user = _current_user(request)
    if user is None:
        return {"status": 401, "body": "unauthenticated"}
    note = STORE.get_note(int(request["query"]["id"]))
    if note is None:
        return {"status": 404, "body": "not found"}
    if note[1] != user:
        return {"status": 403, "body": "forbidden"}
    return {"status": 200, "body": note}