from __future__ import annotations

from flask import Blueprint, jsonify, request

from app.services.realtime import RealtimeService
from app.utils.serialization import to_plain

realtime_blueprint = Blueprint("realtime", __name__)
service = RealtimeService()


@realtime_blueprint.get("/realtime/snapshot")
def realtime_snapshot():
    return jsonify(to_plain(service.snapshot()))


@realtime_blueprint.get("/realtime/history")
def realtime_history():
    range_key = request.args.get("range", "6h")
    start = request.args.get("start")
    end = request.args.get("end")
    metrics = [item.strip() for item in request.args.get("metrics", "").split(",") if item.strip()]
    try:
        return jsonify(to_plain(service.history(range_key=range_key, start=start, end=end, metric_ids=metrics or None)))
    except ValueError as exc:
        return jsonify({"detail": str(exc)}), 400