metrics

var (
	// Build Info
	BuildInfo = factory.NewGaugeVec(
		prometheus.GaugeOpts{
			Name: "gapi_build_info",
			Help: "GAPI build information",
		},
		[]string{"version", "commit", "go_version"},
	)

	// Supervisor Metrics
	SupervisorUptime = factory.NewGauge(
		prometheus.GaugeOpts{
			Name: "gapi_supervisor_uptime_seconds",
			Help: "GAPI supervisor uptime in seconds",
		},
	)

	AgentsTotal = factory.NewGauge(
		prometheus.GaugeOpts{
			Name: "gapi_supervisor_agents_total",
			Help: "Total number of registered agents",
		},
	)

	// Agent Lifecycle Metrics
	AgentState = factory.NewGaugeVec(
		prometheus.GaugeOpts{
			Name: "gapi_agent_state",
			Help: "Current state of agents (1 = in this state, 0 = not)",
		},
		[]string{"id", "type", "state"},
	)

	AgentStarts = factory.NewCounterVec(
		prometheus.CounterOpts{
			Name: "gapi_agent_starts_total",
			Help: "Total number of agent starts",
		},
		[]string{"id", "type"},
	)

	AgentStops = factory.NewCounterVec(
		prometheus.CounterOpts{
			Name: "gapi_agent_stops_total",
			Help: "Total number of agent stops",
		},
		[]string{"id", "type"},
	)

	AgentFailures = factory.NewCounterVec(
		prometheus.CounterOpts{
			Name: "gapi_agent_failures_total",
			Help: "Total number of agent failures",
		},
		[]string{"id", "type", "reason"},
	)

	// Resource Usage Metrics
	AgentCPUUsage = factory.NewGaugeVec(
		prometheus.GaugeOpts{
			Name: "gapi_agent_cpu_usage",
			Help: "Agent CPU usage percentage",
		},
		[]string{"id", "type"},
	)

	AgentMemoryBytes = factory.NewGaugeVec(
		prometheus.GaugeOpts{
			Name: "gapi_agent_memory_bytes",
			Help: "Agent memory usage in bytes",
		},
		[]string{"id", "type"},
	)

	AgentUptimeSeconds = factory.NewGaugeVec(
		prometheus.GaugeOpts{
			Name: "gapi_agent_uptime_seconds",
			Help: "Agent uptime in seconds",
		},
		[]string{"id", "type"},
	)

	// EventBus Metrics
	EventBusEvents = factory.NewCounterVec(
		prometheus.CounterOpts{
			Name: "gapi_eventbus_events_total",
			Help: "Total number of events published",
		},
		[]string{"topic"},
	)

	EventBusSubscribers = factory.NewGaugeVec(
		prometheus.GaugeOpts{
			Name: "gapi_eventbus_subscribers",
			Help: "Number of active subscribers per topic",
		},
		[]string{"topic"},
	)
)

var Registry = prometheus.NewRegistry()