{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/high-tech/refs/heads/main/json-schema/high-tech-bom-schema.json",
  "title": "High Tech Bill of Materials",
  "description": "A Bill of Materials (BoM) — the ordered list of every component required to build one unit of a hardware product. Each line references one or more acceptable MPNs (alternates) with reference designators and a quantity.",
  "type": "object",
  "required": ["bomId", "lines"],
  "properties": {
    "bomId": { "type": "string", "description": "Stable identifier for this BoM revision." },
    "name": { "type": "string" },
    "revision": { "type": "string", "example": "rev-A" },
    "product": {
      "type": "object",
      "properties": {
        "name": { "type": "string" },
        "partNumber": { "type": "string" }
      }
    },
    "buildQuantity": { "type": "integer", "minimum": 1, "default": 1 },
    "lines": {
      "type": "array",
      "items": {
        "type": "object",
        "required": ["lineId", "quantity", "alternates"],
        "properties": {
          "lineId": { "type": "string" },
          "quantity": { "type": "integer", "minimum": 1, "description": "Quantity per assembly." },
          "referenceDesignators": {
            "type": "array",
            "items": { "type": "string", "example": "R1" }
          },
          "description": { "type": "string" },
          "doNotPopulate": { "type": "boolean", "default": false },
          "alternates": {
            "type": "array",
            "minItems": 1,
            "items": {
              "type": "object",
              "required": ["mpn", "manufacturer"],
              "properties": {
                "mpn": { "type": "string" },
                "manufacturer": { "type": "string" },
                "preferred": { "type": "boolean", "default": false }
              }
            }
          }
        }
      }
    },
    "createdAt": { "type": "string", "format": "date-time" },
    "modifiedAt": { "type": "string", "format": "date-time" }
  }
}