# Counter Sensor
# Emits incrementing counter events, storing state in the Attune keystore
#
# Each subscribing rule gets its own independent counter, keyed by rule ref.
# The sensor listens for rule lifecycle events via RabbitMQ and manages
# per-rule timer loops that emit one event per second (configurable).

ref: nodejs_example.counter_sensor
label: "Counter Sensor"
description: "Emits periodic counter events with per-rule state stored in the Attune keystore"
enabled: true

# Sensor runner type
runner_type: nodejs

# Entry point for sensor execution
entry_point: counter_sensor.js

# Trigger types this sensor monitors
trigger_types:
  - nodejs_example.counter

# Sensor configuration schema (flat format with inline required/secret)
parameters:
  default_interval_seconds:
    type: integer
    description: "Default interval between counter emissions (in seconds)"
    default: 1
    minimum: 1
    maximum: 3600
  key_prefix:
    type: string
    description: "Prefix for counter keys in the Attune keystore"
    default: "nodejs_example.counter"

# Poll interval (how often the sensor checks for events)
poll_interval: 1

# Tags for categorization
tags:
  - counter
  - nodejs
  - example
  - keystore

# Metadata
meta:
  builtin: false
  system: false
  description: |
    The counter sensor demonstrates a stateful Node.js sensor that integrates
    with the Attune keystore. It maintains a separate monotonically-increasing
    counter for each subscribing rule, persisting the value in the keystore
    so that counters survive sensor restarts.

    Features exercised:
    - Node.js sensor lifecycle (startup, rule subscription, shutdown)
    - RabbitMQ integration (amqplib) for rule lifecycle events
    - Attune keystore API for persistent state (GET/PUT/POST /api/v1/keys)
    - Per-rule scoped state via keystore key naming
    - Periodic event emission via POST /events API
    - Graceful shutdown with timer cleanup

# Documentation
examples:
  - description: "Counter firing every second (default)"
    trigger_type: nodejs_example.counter
    trigger_config: {}

  - description: "Counter firing every 5 seconds"
    trigger_type: nodejs_example.counter
    trigger_config:
      interval_seconds: 5