from fastapi import APIRouter, HTTPException

from common.log.module_logger import ModuleLogger
from backend.services.prometheus_metrics_service import PrometheusMetricsService

router = APIRouter()

# Initialize service and logger
prometheus_service = PrometheusMetricsService()
module_logger = ModuleLogger(__file__)


@router.get("/prometheus/product/{product_id}/metric/{metric_name}/info")
async def get_metric_info(
    product_id: str,
    metric_name: str
):
    """
    Get information about a specific metric including its PromQL query.
    
    Args:
        product_id: Product ID to identify which product's metrics to query
        metric_name: Name of the metric to get information for
    """
    await module_logger.log_info(f"Getting info for metric '{metric_name}' from product '{product_id}'")

    metric_info = await prometheus_service.get_metric_info(product_id, metric_name)

    return {
        "metric_info": metric_info,
        "description": f"Information about metric '{metric_name}' in product '{product_id}'"
    }