{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://git.octoturge.com/Continuum/continuum-schemas/raw/branch/main/schemas/continuum/v1/edge/printer_command.schema.json",
  "title": "PrinterCommand",
  "description": "The closed set of things the cloud may ask a printer to do. Deliberately small, and deliberately missing the obvious one: there is no 'start a print' variant. The gateway can start an uploaded file, but that code path has never been run against real hardware, and the first thing to exercise it should be a human watching the machine rather than a message arriving from the internet. Add the variant here once it has been confirmed by hand.",
  "oneOf": [
    {
      "type": "object",
      "title": "SetFanSpeed",
      "properties": {
        "action": { "const": "set_fan_speed" },
        "percent": {
          "type": "integer",
          "minimum": 0,
          "maximum": 100,
          "description": "A percentage on this wire regardless of what the vendor wants. Each gateway converts: for Bambu that means an M106 PWM value over MQTT, which the printer then reports back as one of 16 fan gears - so a value set here does not read back identically."
        }
      },
      "required": ["action", "percent"]
    },
    {
      "type": "object",
      "title": "SendGcodeLine",
      "properties": {
        "action": { "const": "send_gcode_line" },
        "line": {
          "type": "string",
          "description": "A single raw gcode line. By far the most powerful variant, and the one to be most careful about ever exposing to a UI."
        }
      },
      "required": ["action", "line"]
    }
  ]
}