"""
Prometheus metric definitions for the orchestrator application.

This module exposes Prometheus counters and gauges for monitoring the
orchestrator, including application health and email delivery metrics.
"""

from prometheus_client import Counter, Gauge

APP_UP = Gauge(
    'app_up',
    'Indicates if the application is running (1) or shutting down (0)',
    ['pod_id'],
)

CORE_LABELS = ['pod_id', 'model_name', 'pipeline_name']


EMAIL_SENT_COUNT = Counter(
    'email_sent_count',
    'Total number of emails sent by the orchestrator',
    [*CORE_LABELS, 'email_group'],
)