{
  "$schema": "https://json-structure.org/meta/core/v0/#",
  "$id": "https://raw.githubusercontent.com/api-evangelist/aircon/refs/heads/main/json-structure/aircon-thermostat-structure.json",
  "name": "Thermostat",
  "description": "Represents the state and configuration of a smart thermostat or HVAC control unit.",
  "type": "object",
  "properties": {
    "id": {
      "type": "string",
      "description": "Unique identifier for the thermostat device.",
      "example": "thermostat-a1b2c3"
    },
    "name": {
      "type": "string",
      "description": "Human-readable name of the thermostat.",
      "example": "Living Room Thermostat"
    },
    "current_temperature": {
      "type": "double",
      "description": "Current measured temperature in degrees.",
      "example": 72.5
    },
    "target_temperature": {
      "type": "double",
      "description": "Target temperature setpoint.",
      "example": 70.0
    },
    "temperature_unit": {
      "type": "string",
      "enum": [
        "celsius",
        "fahrenheit"
      ],
      "description": "Unit of temperature measurement.",
      "example": "fahrenheit"
    },
    "hvac_mode": {
      "type": "string",
      "enum": [
        "off",
        "heat",
        "cool",
        "auto",
        "fan_only",
        "dry"
      ],
      "description": "Current HVAC operating mode.",
      "example": "cool"
    },
    "hvac_status": {
      "type": "string",
      "enum": [
        "idle",
        "heating",
        "cooling",
        "fan",
        "off"
      ],
      "description": "Current HVAC operation status.",
      "example": "cooling"
    },
    "fan_mode": {
      "type": "string",
      "enum": [
        "auto",
        "on",
        "circulate",
        "low",
        "medium",
        "high"
      ],
      "description": "Fan operation mode.",
      "example": "auto"
    },
    "humidity": {
      "type": "double",
      "minimum": 0,
      "maximum": 100,
      "description": "Current relative humidity percentage.",
      "example": 45.0
    },
    "target_humidity": {
      "type": "double",
      "minimum": 0,
      "maximum": 100,
      "description": "Target relative humidity percentage.",
      "example": 50.0
    },
    "is_online": {
      "type": "boolean",
      "description": "Whether the thermostat is currently online.",
      "example": true
    },
    "location": {
      "type": "string",
      "description": "Physical location or room of the thermostat.",
      "example": "Living Room"
    },
    "model": {
      "type": "string",
      "description": "Thermostat model identifier.",
      "example": "ecobee4"
    },
    "firmware_version": {
      "type": "string",
      "description": "Current firmware version of the device.",
      "example": "4.8.7.132"
    },
    "last_updated": {
      "type": "datetime",
      "description": "Timestamp of the last status update.",
      "example": "2026-04-19T10:30:00Z"
    }
  },
  "required": [
    "id",
    "hvac_mode",
    "current_temperature"
  ]
}