"""
Prometheus metrics for demo session service
"""

from prometheus_client import Counter, Histogram, Gauge

# Counters
demo_sessions_created_total = Counter(
    'demo_sessions_created_total',
    'Total number of demo sessions created',
    ['tier', 'status']
)

demo_sessions_deleted_total = Counter(
    'demo_sessions_deleted_total',
    'Total number of demo sessions deleted',
    ['tier', 'status']
)

demo_cloning_errors_total = Counter(
    'demo_cloning_errors_total',
    'Total number of cloning errors',
    ['tier', 'service', 'error_type']
)

# Histograms (for latency percentiles)
demo_session_creation_duration_seconds = Histogram(
    'demo_session_creation_duration_seconds',
    'Duration of demo session creation',
    ['tier'],
    buckets=[1, 2, 5, 7, 10, 12, 15, 18, 20, 25, 30, 40, 50, 60]
)

demo_service_clone_duration_seconds = Histogram(
    'demo_service_clone_duration_seconds',
    'Duration of individual service cloning',
    ['tier', 'service'],
    buckets=[0.5, 1, 2, 3, 5, 10, 15, 20, 30, 40, 50]
)

demo_session_cleanup_duration_seconds = Histogram(
    'demo_session_cleanup_duration_seconds',
    'Duration of demo session cleanup',
    ['tier'],
    buckets=[0.5, 1, 2, 5, 10, 15, 20, 30]
)

# Gauges
demo_sessions_active = Gauge(
    'demo_sessions_active',
    'Number of currently active demo sessions',
    ['tier']
)

demo_sessions_pending_cleanup = Gauge(
    'demo_sessions_pending_cleanup',
    'Number of demo sessions pending cleanup'
)

# Alert generation metrics
demo_alerts_generated_total = Counter(
    'demo_alerts_generated_total',
    'Total number of alerts generated post-clone',
    ['tier', 'alert_type']
)

demo_ai_insights_generated_total = Counter(
    'demo_ai_insights_generated_total',
    'Total number of AI insights generated post-clone',
    ['tier', 'insight_type']
)

# Cross-service metrics
demo_cross_service_calls_total = Counter(
    'demo_cross_service_calls_total',
    'Total number of cross-service API calls during cloning',
    ['source_service', 'target_service', 'status']
)

demo_cross_service_call_duration_seconds = Histogram(
    'demo_cross_service_call_duration_seconds',
    'Duration of cross-service API calls during cloning',
    ['source_service', 'target_service'],
    buckets=[0.1, 0.2, 0.5, 1, 2, 5, 10, 15, 20, 30]
)