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from __future__ import annotations

import logging
from datetime import datetime, timezone
from typing import Any

logger = logging.getLogger("monitoring.telemetry")


class MonitoringEngine:
    def __init__(self) -> None:
        self.events: list[dict[str, Any]] = []

    async def record_event(
        self,
        event: str,
        project_id: str | None = None,
        status: str = "info",
        metadata: dict[str, Any] | None = None,
    ) -> dict[str, Any]:
        record = {
            "event": event,
            "project_id": project_id,
            "status": status,
            "metadata": metadata or {},
            "timestamp": datetime.now(timezone.utc).isoformat(),
        }

        self.events.append(record)

        if len(self.events) > 1000:
            del self.events[:-1000]

        logger.info("telemetry=%s", record)
        return record

    async def get_events(
        self,
        project_id: str | None = None,
    ) -> list[dict[str, Any]]:
        if project_id is None:
            return list(self.events)

        return [
            event
            for event in self.events
            if event.get("project_id") == project_id
        ]


monitoring_engine = MonitoringEngine()