{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://paramat3d.com/preflight-request.schema.json",
  "title": "ParaMat filament print preflight request",
  "description": "Read-only material, profile, printer, spool, and job facts used to detect consequential mismatches before applying a filament profile.",
  "type": "object",
  "additionalProperties": false,
  "required": ["material", "spool", "slicer_profile", "printer", "job"],
  "properties": {
    "material": {
      "type": "object",
      "additionalProperties": false,
      "required": ["brand", "product", "family"],
      "properties": {
        "brand": { "type": "string", "minLength": 1, "maxLength": 120 },
        "product": { "type": "string", "minLength": 1, "maxLength": 180 },
        "family": { "type": "string", "minLength": 2, "maxLength": 40 }
      }
    },
    "spool": {
      "type": "object",
      "additionalProperties": false,
      "required": ["family"],
      "properties": {
        "family": { "type": "string", "minLength": 2, "maxLength": 40 },
        "spool_ref": { "type": "string", "maxLength": 120 },
        "remaining_g": { "type": "number", "minimum": 0, "maximum": 100000 },
        "dry_state": {
          "type": "string",
          "enum": ["dry", "conditioned", "unknown", "wet", "needs_drying"]
        }
      }
    },
    "slicer_profile": {
      "type": "object",
      "additionalProperties": false,
      "required": ["material_family", "nozzle_c", "bed_c"],
      "properties": {
        "material_family": { "type": "string", "minLength": 2, "maxLength": 40 },
        "profile_ref": { "type": "string", "maxLength": 160 },
        "nozzle_c": { "type": "number", "minimum": 0, "maximum": 500 },
        "bed_c": { "type": "number", "minimum": 0, "maximum": 250 }
      }
    },
    "printer": {
      "type": "object",
      "additionalProperties": false,
      "required": ["hotend_max_c", "bed_max_c", "nozzle_material", "nozzle_diameter_mm", "enclosed"],
      "properties": {
        "model": { "type": "string", "maxLength": 180 },
        "hotend_max_c": { "type": "number", "minimum": 0, "maximum": 600 },
        "bed_max_c": { "type": "number", "minimum": 0, "maximum": 300 },
        "nozzle_material": { "type": "string", "minLength": 1, "maxLength": 60 },
        "nozzle_diameter_mm": { "type": "number", "exclusiveMinimum": 0, "maximum": 5 },
        "enclosed": { "type": "boolean" }
      }
    },
    "job": {
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "job_ref": { "type": "string", "maxLength": 160 },
        "estimated_material_g": { "type": "number", "minimum": 0, "maximum": 100000 }
      }
    }
  }
}