{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://breadkit.github.io/breadkit/schema/board-v1.json",
  "title": "Breadkit board definition v1",
  "type": "object",
  "required": ["id", "terminal"],
  "properties": {
    "id": { "type": "string", "minLength": 1 },
    "name": { "type": "string" },
    "ground_labels": { "type": "array", "items": { "type": "string" } },
    "terminal": {
      "type": "object", "required": ["columns", "rows", "groups"],
      "properties": {
        "columns": { "type": "integer", "minimum": 1 },
        "rows": { "type": "array", "minItems": 1, "items": { "type": "string", "minLength": 1 } },
        "groups": { "type": "array", "items": { "type": "array", "minItems": 1, "items": { "type": "string" } } },
        "ravine_between": { "type": "array", "prefixItems": [{ "type": "string" }, { "type": "string" }], "minItems": 2, "maxItems": 2 },
        "strip_direction": { "enum": ["column", "row"] },
        "wire_attachment": { "enum": ["socket", "solder"] }
      }, "additionalProperties": false
    },
    "rails": {
      "type": "array", "items": { "type": "object", "required": ["id", "side", "order"],
        "properties": { "id": { "type": "string" }, "side": { "enum": ["top", "bottom", "left", "right", "center"] }, "order": { "type": "integer", "minimum": 0 }, "polarity": { "enum": ["+", "-"] } },
        "additionalProperties": false }
    },
    "rail_layout": {
      "type": "object", "required": ["segments"],
      "properties": {
        "holes": { "type": "integer", "minimum": 1 }, "group_size": { "type": "integer", "minimum": 1 },
        "start_column": { "type": "integer", "minimum": 1 }, "start_row": { "type": "integer", "minimum": 1 },
        "segments": { "$ref": "#/$defs/segments" }, "split_segments": { "$ref": "#/$defs/segments" }
      }, "additionalProperties": false
    }
  },
  "additionalProperties": false,
  "$defs": { "segments": { "type": "array", "items": { "type": "array", "prefixItems": [{ "type": "integer" }, { "type": "integer" }], "minItems": 2, "maxItems": 2 } } }
}